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Clients, Invoicing & BAS in One Book

Accounting practice management software, built for Australian practices.

Have the BAS figures ready before the client's reminder email lands.

OneBookPlus is practice-management software for Australian accountants, BAS agents and bookkeepers: client CRM, GST-compliant invoicing, appointment booking, team logins, and a full double-entry accounting module so you run your own firm as efficiently as you run your clients'. All-in-one for $0 to $69/mo, in place of a separate practice manager, CRM and booking app.

Free plan. No card required. · GST & ABN validation built-in · GST and BAS reports on every plan · Sign up in 90 seconds

Built and supported in AustraliaOpen a live demo business
The invoices list in the OneBookPlus iPhone app, showing paid and overdue invoices with their due dates
The quotes list in the OneBookPlus iPhone app, showing draft, sent, accepted and declined quotes
The contacts list in the OneBookPlus iPhone app, with a job, quote and invoice shortcut on every contact
Invoice screen

Cut $66+/mo from your software stack by replacing MYOB Practice + Calendly + a CRM + Mailchimp with OneBookPlus.

See practice pricing

Lodgement status. No direct ATO lodgement. OneBookPlus prepares and validates BAS and returns; it does not lodge them. You or your agent lodge through myGov, the ATO portal or your agent's software. Client management, invoicing, bookings and the GST and BAS reports are on every plan, and the Tax Practice Suite adds billable time, a task board, a CPD register and the ATO key dates.

Key takeaways

5
  • OneBookPlus is practice-management software for Australian accountants, BAS agents, and bookkeepers: client CRM, bookings, GST invoicing and your own books on one platform from $0/mo (Free), $29/mo (Starter), or $69/mo (Growth, billed in AUD), with the Tax Practice Suite app for the tax practice itself.
  • Tax agent and BAS agent registration with the Tax Practitioners Board (TPB) is the legal prerequisite for charging fees for tax or BAS services in Australia. OneBookPlus keeps your TPB registration number in your tax agent profile. It is not printed on quotes or invoices unless you add it to your invoice footer note.
Show 3 more
  • Your tax agent profile records your professional indemnity insurance and its expiry ($2m+ is industry-typical for tax practitioners), and the Tax Practice Suite keeps a CPD register against the TPB's hours, so you can show both to clients and the TPB when asked.
  • In the Tax Practice Suite app, billable time is logged against a tax client by hand, then rolled into one draft GST invoice for that client in a single step. There is no running clock, and fixed fees are invoiced the ordinary way.
  • The Tax Practice Suite's key-dates calendar lists the ATO deadlines for the year ahead (quarterly BAS, super guarantee, STP finalisation, TPAR, FBT, and income tax returns by 31 October for self-lodgers or your ATO tax-agent lodgement-program due date, commonly 15 May for many client returns), and its client list keeps each client's ABN and entity type.

Everything You Need

Built for How Accounting Practices Actually Work

Stop using one tool for clients' books and another for your own practice. OneBookPlus gives accountants and bookkeepers everything they need to manage their firm in one place.

Client CRM

Every client with their quotes, invoices and bookings on one timeline, your notes on the next tab, and what they have been invoiced, paid and still owe at the top. When a director rings, their history is in front of you before you say hello.

GST-Compliant Invoicing

10% GST and your ABN on every invoice, your fees and disbursements as lines, and a Pay Now link for card payment. Turn an accepted quote into an invoice, or duplicate last quarter's to bill the next one.

BAS Figures and Key Dates

The GST and BAS report works out G1, 1A, G11 and 1B from the books, on every plan. With the Tax Practice Suite, a key-dates calendar shows the quarterly BAS, super, STP, TPAR, FBT and income tax deadlines for the year ahead, coloured by how close each one is.

Team Logins and Tasks

Each person gets their own login, from 3 on Starter to 10 on Growth, as an admin, a member or read-only. With the Tax Practice Suite, the task board shows who has each piece of work and when it is due, so you can see who has capacity before tax season.

Client Portal

Send each client a private link to a portal with your logo and colour, where they see their invoices, quotes and bookings, pay an invoice and accept a quote. On Starter and above. It does not take uploads, so receipts and statements still reach you the way they do now.

Appointment Booking

Drop your booking link in your email signature and clients pick a time from the hours you set, answering your intake questions as they book, so you stop trading six emails to find a Tuesday.

Start free, sign up in 90 seconds

Free plan available · No credit card · Cancel anytime

Practice management

Accountancy practice software that tracks the client work itself.

Most accountancy practice software in Australia sits at one of two extremes: a heavyweight suite priced for a fifty-partner firm, or a generic project tool that has never heard of a lodgement program. OneBookPlus sits in the practical middle. It is client management software for accountants, CPAs, BAS agents and bookkeepers that tracks the client work itself (who is doing it, what it bills for, and when the ATO expects it) at a price a two-person practice can justify, starting free.

Client work tracking, engagement by engagement

Every client record carries their contact details, your notes and every quote, invoice and booking, with what they have been invoiced, paid and still owe at the top, so the context is on screen before the work starts. With the Tax Practice Suite, each piece of work (a quarterly BAS, an annual return, a bookkeeping catch-up) goes on the task board against its client, with a due date, a priority and the team member doing it. The time you spend is logged against the client by hand and rolls into a draft GST invoice for that client in one step, so time-based work bills through the same system as your fixed fees instead of a spreadsheet plus a Word template. And because every task shows who has it, you can see who has capacity before BAS season starts rather than three weeks into it.

The Tax Practice Suite layer

For TPB-registered practices, the Tax Practice Suite app adds the deeper practice-management layer on top of any base plan: a practice task board with due dates and priorities, client billable time that rolls into a draft invoice in one step, per-client document storage for your own files, a CPD register that tracks TPB hour requirements, an ATO key-dates calendar covering BAS, SG, STP, TPAR and FBT, and practice performance reports. It prepares and organises the work; it does not lodge with the ATO. Explore the Tax Practice Suite app for the full feature list and pricing.

Runs as a virtual practice

Because the whole platform runs in the browser, with your records stored in Australia in AWS Sydney, OneBookPlus doubles as virtual tax practice management software. Remote staff see the same client records, invoices and bookings as the office does, and with the Tax Practice Suite the same task board and key-dates calendar. New meetings land through your online booking page whether you are at a desk or a kitchen table. Clients do not upload documents to OneBookPlus, so receipts and statements still reach you by email or your usual file share. And if your current tax office management software is a colour-coded spreadsheet, the switch is mostly an import: bring the client list across as a CSV, set your services and their prices, and put each client's work on the task board with its due date.

Lodgement

Lodgement, and where OneBookPlus stops.

No direct ATO lodgement. OneBookPlus prepares and validates BAS and returns; it does not lodge them. You or your agent lodge through myGov, the ATO portal or your agent's software.

What OneBookPlus does is get the work ready. The GST and BAS report works out G1, 1A, G11 and 1B from the books, on every plan, for your own practice and for any client who keeps their books in OneBookPlus and connects you to them. With the Tax Practice Suite, the key-dates calendar lists the quarterly BAS, super guarantee, STP, TPAR, FBT and income tax deadlines for the year ahead, each marked overdue, due soon or later, and the task board holds the work for each client against its due date. It is one calendar for the practice, not a lodgement record for each client. See what the Tax Practice Suite does.

Inside the accounting module

Six groups, every report your tax agent expects.

Financial statements, tax & compliance, receivables and payables, planning and analysis, setup and data control, plus a library of reports. The profit and loss runs on a cash or accrual basis and can be set beside the prior financial year.

Financial statements & ledger

The core reports you open every month, generated live from the GL with cash/accrual toggle, year-on-year comparatives and drill-through from any line to the source transaction.

See the finance features
  • Profit & Loss

    Cash/accrual toggle, month-by-month, fixed-asset depreciation auto-included.

  • P&L Comparative (YoY)

    Variance dollar + percentage per category against prior FY.

  • Balance Sheet + Comparative

    Real-time net position with year-on-year movement per line.

  • Cash Flow Statement

    Operating, investing, financing: derived directly from your journals.

  • Trial Balance + Comparative + sign-off

    The diagnostic test for GL integrity, with frozen year-end snapshots.

  • General Ledger drill-down

    Drill from any P&L or balance-sheet line into account-level transactions.

  • Journal Entries + audit log

    Manual journals with multi-line entries, reversal, and append-only audit.

Tax & compliance

BAS, PAYG, super, TPAR and the ATO calendar in one place. Pre-lodgement audits catch anomalies before they end up in front of the ATO.

See the finance features
  • BAS / GST Report (G1, 1A, 1B, G10, G11, W2)

    Cash/accrual toggle. Derived from the GL: no parallel register to maintain.

  • BAS Lodgements + audit record

    Lodgement date, ATO receipt number and net amount frozen per BAS. Revisions create new snapshots.

  • GST Audit Report

    Flags invoices marked Standard with $0 GST, off-band rates, tax/non-tax conflicts.

  • GST Settlement

    Record the BAS payment or refund: clears the GST liability accounts in one journal.

  • PAYG Installments (T7 or T1×T2)

    Quarterly installments tracked as a prepayment of income tax.

  • Super Guarantee

    STP-derived per-employee SG at 11.5%, with clearing-house tracking against the 28-day deadline.

  • TPAR

    Auto-detect reportable contractor payments and export them as a CSV to work from at year end.

  • ATO Calendar (12 months forward)

    Every BAS, PAYG, super, TPAR and STP deadline with traffic-light status.

  • Deduction Finder

    Heuristic scan for under-claimed home-office, motor-vehicle, prepayment and depreciation patterns.

  • Receipt Coverage

    ATO substantiation check: flags expenses over the $82.50 threshold with no attached receipt.

  • Expense Anomalies

    Outlier detection: duplicate payments, categories that quintupled month-on-month.

  • Supplier ABN Audit

    TAA 1953 s 12-190: flags suppliers without a valid ABN before you withhold incorrectly.

  • FX Revaluation

    Unrealised gain/loss on open foreign-currency invoices at year-end, with auto-reversing journal.

Receivables, payables & cash

From the first invoice to the final write-off, receivables ageing, supplier statements, batch ABA payments, credit notes, bad-debt journals and payments matched back to the invoices they settle.

See the finance features
  • Aged Receivables + by Customer

    Current / 1-30 / 31-60 / 61-90 / 90+ buckets with per-customer drill-down.

  • Aged Payables + Supplier Statements

    Mirror of customer-side ageing for what you owe, with per-supplier YTD totals.

  • Invoice payment matching

    Allocate recorded payments against open invoices, part-payments and overpayments included.

  • Receipt and bill scanning

    Drag in a PDF or photo: supplier, date, GST and total are read for you, ready to post.

  • Payment Runs + ABA export

    Select bills, generate an ABA bank file, upload once: bank processes the whole batch.

  • Customer Statements (with share token)

    Email or share a tokenised public URL: customer views their statement without a login.

  • Credit Notes (customer + supplier)

    Allocate against the original invoice; GST flows correctly to the next BAS.

  • Credit Limits & Holds

    Per-customer limit with on-hold flag; new invoices over the limit require override.

  • Bad Debts

    Write-off under GSTR 2000/2 with GST adjustment journal posted automatically. Reversible.

  • Petty Cash (multiple floats)

    Track named cash tins with disbursements, top-ups and running balance.

  • Stripe Payouts Reconciliation

    Match each payout against the underlying charges, refunds and fees in one view.

Planning & analysis

The numbers behind the decisions, budget variance drill-downs, 12-week cash forecasts, working-capital ratios, break-even, recurring-revenue insights and franchise consolidation.

See the finance features
  • Budget vs Actual + Variance Drill-Down

    Annual targets per category, scaled monthly/quarterly/full-year: drill into the variance.

  • Cash Flow Forecast (12-week)

    Forward receipts + payments + closing balance, week-by-week. Negative weeks flagged red.

  • Sales Forecast

    Linear-regression projection from the trailing twelve months. Reset assumptions for scenarios.

  • Working Capital

    Current/quick ratios, DSO, DPO, DIO and cash conversion cycle: the four-number health check.

  • Break-Even Analysis

    Fixed costs ÷ contribution margin = break-even revenue. Adjust inputs live.

  • Cost-Plus Pricing

    Build a quote price from materials + labour + overhead + margin; saved against the quote.

  • Recurring Revenue Insights

    MRR, ARR, net new MRR, churn dollars and churn rate: for subscription businesses.

  • Recurring Invoices + Recurring Expenses

    Auto-generate on schedule. Projected MRR/ARR surfaced.

  • Fixed Assets Register

    Four depreciation methods (prime cost, diminishing value, SBE pool, immediate). Disposal journal automated.

  • Franchise Consolidation

    Aggregate P&L and balance sheet across multiple tenants in one consolidated view.

  • Tracking Categories

    Department, Location, Project allocations per transaction: drives dimensional reporting.

  • P&L by Tracking

    Slice the P&L by any tracking dimension. Side-by-side margins per Location or Department.

Setup & data control

How a new tenant gets operational in under a day, chart of accounts, opening balances, tax codes, tracking dimensions, receipt inbox and period locks once you start lodging.

See the finance features
  • Chart of Accounts (CSV import)

    33 default Australian accounts; replace wholesale via CSV from Xero, MYOB or QuickBooks.

  • Opening Balances Wizard

    Imports closing balances as a single OPENING-BAL journal with debit/credit validation.

  • Tax Codes

    Custom GST classifications: WET, LCT, capped input credits, GST-free variants.

  • Tracking Categories config

    Define Department / Location / Project dimensions and the values within each.

  • Period Locks

    Lock after BAS or tax-return lodgement; unlock events logged with actor + reason.

  • Receipt Inbox

    Upload a receipt photo or PDF. OCR-suggested expense fields ready for one-click creation.

  • Job Costing + Project Budget

    Estimate vs actual hours and materials per job, with red/amber/green margin flag.

  • Inventory tracking

    On-hand qty, low-stock alerts, stocktake workflow. Adjustments auto-post Dr Inventory / Cr COGS.

  • Quote Analytics + Quote-to-Invoice

    Acceptance rate, time-to-accept and won/lost value: one-click conversion to invoice.

  • Business Pulse widget

    Heuristic insights on the accounting overview: variance, runway, growing-expense alerts.

Reports library

Forty-plus reports across six groups, every one CSV-exportable, most with comparative and drill-down. The reports library inside the app lists them all in one place.

See the finance features
  • Sales by Customer / Location

    Ranked revenue with month-on-month deltas and concentration risk band.

  • Expenses by Supplier

    Suppliers ranked by spend with GST claimable and top expense category each.

  • Category Trend (12-month)

    Twelve-month sparkline per expense category: spot creeping subscription growth.

  • Payroll Summary (STP-ready)

    Per-employee gross, PAYG, super, net pay: feeds STP finalisation.

  • Customer LTV

    All-time revenue per customer, average days-to-pay, top-10 concentration band.

  • Outstanding Invoices

    Open AR sorted by age: the single working list for collections.

  • Year-End Pack

    One-click PDF/CSV bundle: TB, P&L, BS, FA register, AR/AP, BAS history, journals.

  • Month-End Digest

    Auto-generated month summary: revenue, GM, top expenses, AR ageing, cash on hand.

A note on framing

The capability list above describes what the accounting module does. It is not positioned as a Xero or MYOB replacement, those are good tools and many practices will keep using them for client work. OneBookPlus is the platform where your firm runs its own books alongside CRM, bookings and invoicing, and where you can offer clients a single workspace if they want one. The capability depth is here for practices that want to consolidate.

Common questions

Six questions accountants ask in the first month.

Preview snippets from the help centre. Each article is 200 to 400 words covering the actual mechanics, not marketing fluff. Click through for the full walkthrough, or browse the accounting help category for the full set.

BAS & GST

How OneBookPlus calculates GST on the BAS report

The BAS report doesn't read a separate GST register. It walks your general ledger for the BAS period and groups every line by its tax code. Each box on the BAS is derived from the journals that posted during the quarter, G1 from gross customer invoices, 1A from the 10% GST portion, G10 and G11 from bills against asset vs expense accounts. Switching the cash/accrual toggle re-runs the calculation in seconds.

Read “How OneBookPlus calculates GST on the BAS report”

Receivables

Recording a bad-debt write-off

Under ATO ruling GSTR 2000/2, a debt is 'bad' once you've made a genuine commercial decision that it's unrecoverable, typically 12+ months overdue with collection attempts on record. The write-off posts Dr Bad Debts Expense, Dr GST on Sales (the adjustment), Cr Accounts Receivable. If the customer eventually pays, reverse the write-off and the original journal reverses verbatim.

Read “Recording a bad-debt write-off”

Payables

Generating ABA bank files for batch supplier payments

Pay 30 supplier bills with one upload instead of 30 manual payments. Pick the source account and payment date, select the bills, and OneBookPlus writes the fixed-width ABA file every Australian business bank accepts. The bills stage as Awaiting confirmation until you mark the run processed, which posts Dr Accounts Payable, Cr Bank. Suppliers missing a BSB or a valid ABN are flagged before the file is generated.

Read “Generating ABA bank files for batch supplier payments”

BAS & GST

Lodging the BAS: what to enter where

Field-by-field walkthrough of the quarterly BAS: G1 (gross sales including GST), 1A (the 10% portion), G10 (capital purchases), G11 (non-capital), 1B (the credit you claim back), W1 (gross wages), W2 (PAYG withheld), 5A (PAYG instalment). The summary computes 1A − 1B + W2 + 5A = net payment to the ATO. Run the GST Audit Report first, fixing anomalies after lodgement requires a formal revision.

Read “Lodging the BAS: what to enter where”

Registers

Tracking fixed assets and depreciation

Anything tangible, used in the business, expected to last more than 12 months, and over the instant asset write-off threshold (currently $20,000 for SBE in 2024 to 2025). Four methods supported: prime cost, diminishing value, SBE pool, immediate write-off. Disposals post a balanced journal (Dr Bank, Dr Accumulated Depreciation, Cr Fixed Asset, Dr/Cr Gain or Loss) and flag 50% CGT discount eligibility for assets held over 12 months.

Read “Tracking fixed assets and depreciation”

Planning

Cash flow forecasting: what the 12-week view does and doesn't

The forecast projects your closing bank balance week-by-week for the next 12 weeks. Receipts come from due-soon AR + recurring invoices; payments come from due-soon AP + recurring expenses + scheduled tax. It catches imminent shortfalls (payroll two weeks out vs the biggest AR invoice three weeks out), but it's not a prediction. A customer who always pays a fortnight late will still be modelled as paying on the due date until you adjust their expected pay date manually.

Read “Cash flow forecasting: what the 12-week view does and doesn't”

Website included

A website for your accounting business, included.

Every paid plan includes a full website, hosted by us, with nothing extra to buy and no separate builder: your site, its booking page and the tools behind them sit on one plan. The Free plan keeps the booking page and does not have the website.

The AI drafts every page from your own answers about your accounting work, not from your business name, and it does not invent claims. Every page is laid out for a phone as well as a desk. In the Website Studio you edit any section in place, add text, lists and buttons inside it, choose how many cards sit across, and change the look, which keeps your words, your photos and the spacing you set. The booking page is built in and the site's Book buttons go to it. Your first AI build is included with the plan. A later rebuild runs on AI Companion credits, and one that starts fresh replaces your pages, saving a restore point in History first.

  • Bookings around the clock

    A new client books a 30-minute tax-planning consult at 9pm via your booking page while you're offline. Their answers to your intake questions, such as their entity type and the work they need, are on the booking when you open it in the morning.

  • Prices up front

    Individual tax return from $165. Quarterly BAS lodgement $180. A customer sees the price before they book.

  • Your services and the area you cover

    The AI writes your services and the area you cover from your answers, so when someone searches 'accountant in [suburb]' there is a page that says what you do and where.

No card needed to start.

The Build with AI wizard in the Website Studio at its Plan step, headed Your plan is ready: chips for six services in Western Sydney, Get a quote, five pages and the Classic professional look, a note that the first AI site build is included with the plan, the home sections the AI designed (hero, features, process steps, blurb box, icon list, gallery, FAQs and a call to action), the planned menu, and a Build it button.

The Website Studio's Build with AI at its Plan step, on our plumbing demo: the pages, sections and menu the AI proposed from the answers already on the account, before anything is built. Click it to see it full size, or watch the recording of the build on the homepage.

What each plan holds for accountants

  • Free

    $0

    A branded booking page on your OneBookPlus address. No website on this plan.

  • Starter

    $29/mo

    A website on your OneBookPlus address, hosted with SSL: 10 pages and a blog. The first AI draft is included.

  • Plus

    $49/mo

    Your own domain with SSL, 50 pages and a members area.

  • Growth

    $69/mo

    Unlimited pages, and a landing page per suburb from one template.

Your own domain connects on an active paid Plus or Growth subscription, not during the 14 day trial; a trial site lives on your OneBookPlus address. Every published site carries a small “Made with OneBookPlus” credit.

Three businesses, three looks

All three sites were drafted by the AI from the owner's answers, our own site included. It picks one of eight heading and body type pairings and how the cards sit (a fine line, a bold outline, a soft lift or no card), so a plumber's site, a driving school's and ours do not come out alike. Switch the view to see each one on a desktop, a tablet and a phone, click any screenshot to see it full size, or open the live site in a new tab. The plumber and the driving school are our demo businesses, not customers.

The OneBookPlus Plumbing home page on a desktop: the business name centred above a five item menu and a navy Get a free quote button, a dark hero photo of a gloved hand on a wrench under the heading Fast, reliable plumbing across Sydney, three trust lines, and the start of the What we fix service grid.

A plumber in Sydney

OneBookPlus Plumbing

The home page: the name centred over the menu, a dark hero photo, a navy quote button and a grid of services.

Open the OneBookPlus Plumbing site(opens in a new tab)
The OneBookPlus Driving School home page on a desktop: the yellow L plate logo and the name on the left, the menu, a phone button and a teal Book now button on the right, a dark banner of a hand on a steering wheel under the heading Learn to drive with calm, patient instructors, and a yellow band of numbers: 7 local instructors, 7 dual-control cars, the lowest lesson price and 7 days a week.

A driving school in Melbourne's west

OneBookPlus Driving School

The home page: an L plate logo, a video banner of a hand on the wheel and a yellow band of numbers.

Open the OneBookPlus Driving School site(opens in a new tab)
The OneBookPlus home page on a desktop: the logo and name centred over the menu with a dark Book now button, then the serif heading One login runs your whole business beside a framed photo of a woman at a laptop on a pale grey ground.

Our own site, built the same way

OneBookPlus

The home page: a serif heading beside a framed photo on pale grey, and no full width hero at all.

Open the OneBookPlus site(opens in a new tab)

The app

Add full practice management for tax agents

For TPB-registered tax and BAS agents, the Tax Practice Suite app adds the practice-management layer on top of any base plan: billable time to invoice, a task board, ATO key dates, a CPD register and per-client documents. It does not lodge with the ATO.

Tax Practice Suite

$29/mo

Practice management for registered tax agents and BAS agents

Practice management for registered tax agents and BAS agents, inside OneBookPlus rather than beside it. Manage clients, prepare and validate BAS, TPAR, company, trust, partnership and individual income tax returns, turn billable time into an invoice, and run the practice off a task board with the ATO key dates already on it. It carries a CPD register against the TPB hours, per-client document storage, a secure client portal, a 7-year audit log and enforced MFA. On lodgement, the position is exactly this: Direct ATO e-lodgement via SBR is in final ATO certification, prepare and validate BAS and returns today; we'll tell you the moment lodgement goes live on your account. Preparation, validation and the whole practice-management side are what you get today. Nothing is charged per lodgement while lodgement is not switched on. When lodgement goes live, income tax returns are planned at $2 per accepted IITR/CTR/PTR/TTR/FBT lodgement, first 5 free each month, with BAS and TPAR always included in base.

  • Prepare and validate BAS, TPAR, IITR, CTR, PTR, TTR and FBT
  • Client management with CUREL
  • Client billable-time tracking to invoice
  • Practice tasks, deadlines and follow-ups
  • Practice performance reports
  • ATO key-dates calendar (BAS, SG, STP, TPAR, FBT)
Explore Tax Practice Suite14-day free trial · cancel anytime

Simple Workflow

How OneBookPlus Works for Accountants

From client meeting to payment in four simple steps, designed around a typical accounting practice's workflow.

1
Step 1

Client books appointment

Clients pick a time for a consultation or meeting on your online booking page and answer your intake questions as they book. The booking and their answers land in your calendar.

2
Step 2

You do the work

Open the client's record for their history, invoices and notes. With the Tax Practice Suite, log the billable time you spend against the client and keep the work on its task board.

3
Step 3

Invoice the work

Raise a GST invoice for a fixed fee, or turn an accepted quote into one. With the Tax Practice Suite, the billable time you logged rolls into a draft invoice for that client in one step. The client gets a PDF with a payment link.

4
Step 4

Client pays online

Clients pay invoices online by card. Reminders go out after the due date, so you can focus on client work, not collections.

Add your first client, Free

Send your first GST invoice the day you sign up

Who it's for

Built for every accounting practice

From sole practitioner to multi-partner firm. OneBookPlus scales with your practice.

Sole Practitioner

Running a one-person practice, preparing BAS and tax returns. Needs client management, invoicing and the ATO key dates in one place.

Small Accounting Firm

2 to 10 staff managing 200+ clients. Needs a login for each person, a shared task board and practice reports.

BAS Agent

Specialising in BAS preparation. Needs the GST and BAS figures from each client's books, a client import and the quarterly due dates.

Bookkeeper

Working with multiple business clients on reconciliation and reporting. Needs access to each client's books and a clean handoff to accountants.

What a four-tool stack costs each month

Named tools, at each vendor’s own cheapest published plan, and ours underneath. Vendor pricing changes, so check each one before you decide.

MYOB PracticePractice management
$95/mo
HubSpotCRM
US$20/mo
CalendlyClient bookings
US$10/mo
MailchimpClient newsletters
Not published
Total monthly cost$95/mo + US$30/mo + Mailchimp

Or use OneBookPlus

$29/mo

Everything in the list above, on one bill.

Start free

No credit card · Free forever · Cancel anytime

Example walkthrough

Monday of BAS week

An illustrative walkthrough of a typical practice day in BAS season

You open the Tax Practice Suite's task board at 8am with 12 BAS tasks due this week across your client list. You sort by due date and start with the most urgent.

For each client who keeps their books in OneBookPlus and has connected you to them, you open their GST and BAS report: G1, 1A, G11 and 1B are worked out from their invoices and expenses. You review the figures, adjust where needed, and lodge through the ATO portal or your agent software.

By lunch you've prepared six BAS. You send each client their figures and tick the task off the board.

In the afternoon, you invoice the morning's work at $180 per BAS on the example prices shown on this page, GST included. Payment links go out with the invoices, and several clients pay before end of day.

How we compare

OneBookPlus vs accounting practice software

See how we compare to the tools accounting practices typically use.

FeatureOneBookPlusMYOB PracticeXero HQFreshBooks
Client managementYesYesYesYes
BAS preparationYesYesNoNo
Tax return preparationYesYesNoNo
Practice invoicingYesYesYesYes
Client booking pageYesNoNoNo
CRM & client historyYesNoNoNo
Email marketingYesNoNoNo
Practice dashboardYesYesYesYes
Multi-client managementYesYesYesNo
Free plan availableYesNoNoNo
PriceFrom $0/moSubscriptionContact sales$29+/mo

Built for Australian Accounting Practices

GST

Worked out on every invoice, with your ABN on it

ABR

Your ABN checked against the Australian Business Register

1

Platform for clients, invoicing & scheduling

$0

Free plan to start, no card required

Incoming

OneBookPlus

AI Receptionist · incoming call

“I need help with my BAS, can we book a call?”

DeclineAnswer

If you don't answer, the AI books it, Consultation · Wed 11:00am, and texts a confirmation.

Australian Owned

Built in Melbourne, AU

GST Compliant

ATO-ready from day one

Encrypted & Isolated

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Frequently Asked Questions

Common questions about practice management software for accountants in Australia.

Is OneBookPlus a Xero or MYOB alternative for accountants?

Not for your clients' books. Xero and MYOB are excellent general ledgers, and most of your clients will keep using them. OneBookPlus is the layer that runs your own practice on top: client CRM, appointment booking, GST-compliant invoicing and team logins, and with the Tax Practice Suite a task board and the ATO key dates. Honestly, the cleanest setup for most firms is OneBookPlus for practice management plus Xero or MYOB for the bookkeeping engine, not one replacing the other.

Does OneBookPlus integrate with the ATO?

No direct ATO lodgement. OneBookPlus prepares and validates BAS and returns; it does not lodge them. You or your agent lodge through myGov, the ATO portal or your agent's software. What OneBookPlus runs is the practice around the lodgement: client records, invoicing, and GST and BAS figures on every plan, and with the Tax Practice Suite the ATO key dates, a task board, billable time to invoice, a CPD register and per-client documents.

Can I manage hundreds of clients effectively?

Yes. Search and filter your client list and tag clients into groups. Free holds up to 250 clients and Starter up to 1,000, and Plus and Growth have no limit. With the Tax Practice Suite, each piece of work goes on the task board against its client, with a due date and the person doing it.

Does it support team features for multi-staff practices?

Yes. Each plan includes a set number of logins, 3 on Starter, 5 on Plus and 10 on Growth, and you choose whether each person is an admin, a member or read-only. With the Tax Practice Suite, the task board shows who is working on what and when it is due, so nothing falls through the cracks in busy season.

What is the best accounting practice management software in Australia?

The right tool depends on your firm. MYOB Practice Manager and Xero Practice Manager (XPM) are the established, ledger-integrated options and suit firms already deep in those ecosystems. OneBookPlus is the simpler alternative at a fraction of the cost: client CRM, invoicing, bookings and team logins, and with the Tax Practice Suite a task board and the ATO key dates, free to start, with affordable plans as you grow. It prepares rather than lodges, so you keep your lodgement channel. If you want one workflow tool that isn't tied to a single ledger vendor, that's our sweet spot.

What is the Tax Practitioners Board (TPB)?

The Tax Practitioners Board (TPB) is the national body that registers and regulates tax agents and BAS agents in Australia. TPB registration is the legal prerequisite for charging fees to provide tax or BAS services. OneBookPlus keeps your TPB registration number in your tax agent profile. It is not printed on quotes or invoices, so add it to your invoice footer note if you want it there.

Does OneBookPlus help track BAS, IAS, and tax-return due dates?

Yes, with the Tax Practice Suite. Its key-dates calendar lists the ATO deadlines for the year ahead: quarterly BAS, super guarantee, STP finalisation, TPAR, FBT and income tax returns (31 October for self-lodgers, and the 15 May agent lodgement-program date for many client returns), each marked overdue, due soon or later. It is one calendar for the practice rather than a list for each client, and monthly IAS dates are not on it.

Can OneBookPlus run a virtual or fully remote tax practice?

Yes. OneBookPlus runs in the browser, with your records stored in Australia in AWS Sydney, so client records, invoicing and bookings work wherever your team is, and with the Tax Practice Suite so do the task board, billable time and the key-dates calendar. Remote staff sign in with their own accounts, and meetings are booked through your online booking page. There is no server in the office and nothing to install. Clients do not upload documents to OneBookPlus, so those still come to you by email or your usual file share.

Is OneBookPlus client management software for accountants and CPAs?

Yes. The CRM keeps each client's contact details, notes and every quote, invoice and booking, with what they owe at the top. With the Tax Practice Suite, your tax client list adds each client's ABN and entity type, the billable time you log rolls into a draft invoice for that client in one step, and the task board, CPD register and per-client document store sit alongside. Your TPB registration number and professional indemnity insurance are kept in your tax agent profile.

About the author

Bishal Shrestha, Founder of OneBookPlus

Bishal Shrestha

Founder & CEO, OneBookPlus

Bishal spent a decade running digital projects for Australian small businesses before founding OneBookPlus. He writes and maintains these pages, and publishes what OneBookPlus does not do alongside what it does.

A decade running digital projectsPersonal site: bishal.com.auMelbourne, Australia
Read the founder bio

How this page was researched

The compliance and licensing statements above are taken from the bodies this page links to, including Chartered Accountants ANZ, CPA Australia and the Tax Practitioners Board, so you can read the rule rather than take our word for it. Plan prices come from the OneBookPlus price registry, so the page and the checkout cannot disagree. Everything said about OneBookPlus describes what the product does today, and the page says so where it does not do something.

How OneBookPlus Works for Accountants

Accountants and bookkeepers spend their days managing other people's books. But when it comes to running their own practice, most rely on an awkward combination of MYOB Practice or Xero HQ for client work, a separate CRM or spreadsheet for prospect tracking, Calendly for appointment booking, and Outlook for everything else. The irony is that the professionals who keep everyone else's finances in order often have the messiest internal systems. OneBookPlus gives accounting practices a single platform for client management, appointment booking, invoicing, team coordination, and BAS preparation, so you can run your own firm as efficiently as you run your clients'.

The platform is designed around the practice workflow, not just the client ledger. You manage your entire client base in one CRM: contact details, notes, and every quote, invoice and booking. Clients book meetings through your branded online booking page in the hours you set, answering your intake questions as they book. When work is completed, you raise a GST-compliant invoice for the fee, or with the Tax Practice Suite roll the billable time you logged for that client into a draft invoice in one step. The client receives a PDF with a payment link, and reminders chase overdue invoices so you can focus on billable work instead of collections.

Your Daily Workflow

Picture BAS season. You open the Tax Practice Suite's task board at 8am: fourteen BAS tasks due this week across your eighty-five clients, sorted by due date. For each client who keeps their books in OneBookPlus and has connected you to them, you open their GST and BAS report: G1, 1A, G11 and 1B are worked out from their invoices and expenses. You review the figures, adjust where needed, and lodge through the ATO portal or your agent software. By lunch, you've prepared seven. You send each client their figures and tick the task off the board. In the afternoon, you invoice the morning's work at $180 per BAS, GST included. Payment links go out with the invoices. Three clients pay before end of day, and the month's revenue is on your home screen.

Your Own Practice Books

OneBookPlus reconciles incoming client payments against the invoices you raised, so the practice ledger stays current. Your own practice expenses (professional indemnity insurance, software subscriptions, CPD courses, office rent) are categorised and tracked against fee revenue so you can see real practice profitability, not just billings. GST is calculated on every invoice and expense. At BAS time for your own practice, the same GST and BAS report you read for clients gives you your own figures. It's the shoemaker finally getting shoes: the same rigour you apply to client work, applied to your own firm's finances.

Getting Started

Sign up for free. No credit card, no lock-in. Add your practice details, team members, and service types (BAS preparation, tax returns, bookkeeping, advisory). Import your client list from a CSV or add clients as they come in. Set up your online booking page and share the link with clients so they can self-schedule meetings. The free plan includes unlimited one-off bookings, plus 10 invoices and 5 quotes a month with up to 250 contacts, ideal for testing the system on real engagements. Upgrade to a paid plan when your client base grows, at a fraction of what MYOB Practice charges.

See it with real data

The live demo is a working OneBookPlus account with invoices, quotes and jobs already in it, click around before you decide anything.

Your Clients' Books Are Sorted. Now Sort Your Own.

Join Australian accountants and bookkeepers who run their practice smarter with OneBookPlus. Free to start, upgrade when you're ready.

Get started free

Reviewed by Bishal Shrestha

What only OneBookPlus offers

Built so accountants have a seat at the table.

Read-only advisor access, BAS-ready summaries, and Australian hosting, the things an accountant actually needs in a client's books, not a re-skinned bookkeeping app.

Read-only advisor role

Your client connects you to their books as their accountant, read-only or with full access, and confirms it is them before the connection is made. Read-only lets you see the books without risking a stray edit.

Practice console

One screen listing every client who has connected you to their books, where you open a client's books and share a client with a colleague in your firm.

BAS quarterly summary

G1, 1A, G11, 1B, W1, W2 already grouped by BAS quarter against the GL. Export to your lodgement tool of choice or use the figures to review the client.

P&L, GL, journal

The three reports you actually open during a review. Drill from a P&L line into the GL, into the journal, into the source transaction, no five-tab dance.

GST-native invoicing & AU payroll

Every invoice carries 10% GST correctly. Payroll is a $29/mo add-on covering pay runs, PAYG withholding, super and payslips. STP pay events are not lodged to the ATO from OneBookPlus.

ABN check + branded client portal

Your ABN is checked against the Australian Business Register when you set up. From Starter, the portal you send your own clients shows your logo and brand colour.

AWS Sydney hosting

All client data sits in AWS ap-southeast-2 (Sydney). Australian data, Australian time zones, no offshore round-trips.

ABN-anchored entity records

With the Tax Practice Suite, each tax client is kept with their ABN (checked against the register when you add them, with their GST registration), entity type, address and TFN, the data you need when a client rings about an ATO letter.

Stronger sign-in where it matters

The Tax Practice Suite and the payroll and ATO screens ask for a second factor before they open, and a business confirms it is them before it connects an accountant.

Pricing for accountants

Two apps, one bill.

Your own-business app

Bundled into every OneBookPlus base tier, CRM, invoicing, bookings, GST, the practice ledger. The same app your SMB clients use, to run your own firm.

  • Starter, $29/mo3 team logins
  • Growth, $69/mo10 team logins
  • Growth: extra logins $9/mo each. Rostered staff who never sign in are free on every plan. Rostering and Payroll is a separate $29/mo add-on.

Tax Practice Suite

The Tax Practice Suite is one add-on for the practice side of tax and BAS work, on top of any base plan (including Free): your tax client list, billable time to invoice, a task board, the ATO key dates, a CPD register and per-client documents.

  • Tax Practice Suite, $29/mofor TPB-registered tax & BAS agents
  • Per-return feesnone
  • A solo agent on the Free plan runs at $29/mo all-in; pairing it with Starter ($29/mo) for unlimited invoicing is $58/mo all-in.

See OneBookPlus base-tier pricing, or book a 15-min pricing call before you migrate from a competitor. We can usually beat the renewal quote, and we will tell you plainly what OneBookPlus does not do before you move.

One day, written by itself, an illustrated day of an Australian accounting practice run on OneBookPlus

An illustrated day, not real customer data. Scroll through it from morning to 5pm: the AI receptionist answers and books a missed call, the work runs from the app, the GST invoice is sent on the spot, payment lands and the books balance themselves, a review invite is queued for the next daily run, and the day closes with the ledger already written.

8:05am

While you're with a client

The call that comes in two quarters late.

Anika's two BAS quarters behind and panicking. She calls the first accountant on Google, you.

AI Receptionist

Answered mid-consult, booked for ten.

The AI Receptionist app answers, books a 10am consult and sends a confirmation, while you finish your 8 o'clock.

In the consult

Her story, already on her record.

Her contact details and the AI's summary of the call sit on her record, so you know about the two overdue quarters before she sits down.

Between appointments

Billed the moment the advice lands.

One tap turns the consult booking into a GST invoice with a pay link. No end-of-month billing run.

While you're in the next consult

Paid. Reconciled. Balanced.

The card payment is recorded against the invoice, and the $60.00 GST on it is in your own BAS figures.

Reviews without the awkward ask

The review request, once the panic is over.

Her consult was marked complete, so a review request email goes out after the delay you set. You never have to raise it with a client.

The day closes itself

Your own books, done before theirs.

You saw six clients and signed one more. The book did the rest.

$0

collected

0

call answered by the AI

0

evenings lost

An illustrated day, not real customer data. AI Receptionist is a $79/mo add-on that needs AI Companion ($25/mo, included on Growth), and AI Companion is what sends the review invite as well. The rest of the day is the app itself.

Practice pricing

Four plans. All built to run your firm.

Start free, upgrade when your client base justifies it. No contracts, no setup fees, and every plan includes a set number of team logins. The Tax Practice Suite is a separate add-on at a flat monthly price. Cancel any time.

Free

$0/forever

Sole practitioner

Run your first client engagements today, no credit card.

  • Unlimited one-off bookings
  • Up to 250 clients
  • 10 invoices + 5 quotes / month
  • Client CRM with every quote, invoice and booking
  • GST invoicing with your ABN
  • Booking page (clients self-schedule)
  • Double-entry accounting, P&L, GST and BAS reports
  • Your ABN checked against the ABR
Start free

Starter

$29/mo

3 team logins

Replaces a separate CRM, booking app and invoicing tool for the whole firm.

  • Everything in Free
  • Up to 1,000 clients, unlimited invoices and quotes
  • Stripe Pay Now + automated reminders
  • Client portal with your logo and brand colour
  • Email campaigns to your client list
  • Rostering & Payroll add-on, $29/mo (PAYG, super, payslips)
  • 3 team logins
Start 14-day trial

No card · Drops to Free if you don't upgrade

Our pick

Plus

$49/mo

Growing

Outgrowing the basics, advanced reporting.

Our pick: unlimited contacts and booking pages for $49

  • Everything in Starter
  • Your own domain, 50 pages, members area, 5 GB media
  • Unlimited contacts & bookings
  • Advanced reporting & analytics
  • Batch invoicing
  • Paid memberships: charge customers weekly or monthly, on your own Stripe
  • Budget tracking
  • 5 team logins
Start 14-day trial

Growth

$69/mo

Multi-partner firm

For firms running 200+ clients with marketing and advisory on the side.

  • Everything in Plus
  • 10 team logins, with more available
  • SMS campaigns to your client list
  • Cash-flow forecasts and CFO reports
Start 14-day trial

Prices in AUD inc. GST. Add the Tax Practice Suite ($29/mo) when you prepare tax and BAS work under your own TPB registration. See the full plan comparison

Already on another tool?

Switching from Xero Practice Manager, MYOB Practice or Karbon?

Switching is designed to fit in a single evening between BAS quarters. Export your client list as CSV from your current tool, import it into OneBookPlus with the client importer, and you're running engagements before the next lodgement window opens.

  1. 1Export your client list as a CSV from XPM, MYOB Practice or Karbon (5 min)
  2. 2Upload it with the client importer: names, emails, phones, companies, addresses, notes and tags come across (10 min)
  3. 3Set up your services and their prices (BAS, IITR, advisory) and your booking page (15 min)
  4. 4Cancel your old subscription at renewal, flat white in hand

Switch from

Xero Practice Manager
MYOB Practice
Karbon
Spreadsheets

How we compare

OneBookPlus vs Xero Practice Manager, MYOB Practice, Reckon One.

Capability-only, these are all good tools. The question is what your practice actually does day-to-day, and whether one platform can run both your books and your clients'.

CapabilityOneBookPlusXero Practice ManagerMYOB PracticeReckon One
Run your own practice books (CRM + invoicing + ledger)Yes, built inAdd Xero separatelyAdd MYOB Business separatelyYes
Read-only advisor role on client dataYesYesYesLimited
BAS quarterly summary (G1/1A/G11/1B/W1/W2)Yes, nativeYesYesYes
P&L, GL, journal drill-throughYesYesYesYes
Payroll: pay runs, PAYG, super, payslipsYes, $29/mo add-onVia Xero PayrollVia MYOBAdd-on
Single Touch Payroll reporting to the ATONo, use STP-enabled softwareVia Xero PayrollVia MYOBAdd-on
Client bookings + CRM in same toolYesSeparateSeparateSeparate
AWS Sydney hostingYesSydney/AWSAWS AUAWS AU
Single platform for own-firm + tax-agent workflowYesTwo productsTwo productsTwo products

Comparison reflects feature availability for typical Australian SMB practices as at May 2026, check each vendor for current details.

Partner program

Become an OneBookPlus partner.

Recurring commission on every referred client, advisor seat, co-marketing support, and tier perks for active practices. Read the terms before you apply.

Become a partner

Authoritative sources

Where the regulatory and registration facts on this page come from

Australian tax and BAS agents are registered and regulated by the Tax Practitioners Board, lodge under the ATO tax-agent lodgement program, and typically hold membership of a recognised professional body. We cite the primary bodies for the claims on this page so you can verify directly.