I've been running my own businesses since my early twenties, a digital marketing agency, consulting, web development. And like just about every small business owner in Australia, I lived in Google Sheets.
Client contacts in one spreadsheet. Invoices in another. Quotes copy-pasted from old emails. Bookings in my calendar with reminders I'd forget to set. Expenses stuffed in a shoebox until my accountant started chasing me. I told myself it was "good enough", until tax time proved me wrong, every single year.
Come BAS season, I'd lose entire weekends reconciling numbers that didn't add up: missing receipts, invoices I forgot to record, GST I had to double-check line by line. It was stressful, expensive, and completely avoidable. And the worst part was paying somewhere north of $200 a month for a stack of tools that caused the mess, none of which talked to each other.
I figured it was just me being disorganised. Then I started consulting for other small businesses, and found out it wasn't.
I didn't want to assume, so I looked at 200 businesses
I've spent more than a decade in digital marketing, web development, and consulting with Australian small businesses. So I had opinions. But opinions are how you build software nobody asked for.
So across my consulting work I paid attention to more than 200 Australian small and medium business owners, tradies, restaurant operators, salon owners, freelancers, personal trainers. Plumbers in Melbourne's west, restaurant owners in the CBD, salon operators in Sydney, designers all over the country.
The story was almost identical every time:
- They were paying for five to ten separate tools, often $200 to $400 a month combined.
- None of the tools talked to each other, so the same customer existed in four systems with four slightly different spellings.
- BAS time was a dreaded, multi-day event, not because the tax is hard, but because the data lived in five places that had to be stitched together first.
- And almost none of the overseas tools were actually built for Australia. GST was a setting you configured. ABN validation was a plugin. BAS was a report you exported and reformatted.
That last point matters more than people think. In Australia, if an invoice doesn't carry a valid ABN, the payer can be required to withhold 47% of the payment. GST is a flat 10% that has to be right on every line. BAS is quarterly and non-negotiable. These aren't edge cases here, they're the baseline. Yet most of the popular tools treat Australian compliance as a bolt-on to a US-first product.
What I decided to build (and what I deliberately didn't)
OneBookPlus is the answer to one question: what if all of that lived in one app, built Australia-first from day one?
So it's invoicing and quotes, online bookings, a real CRM, full double-entry accounting (chart of accounts, general ledger, balance sheet, BAS summaries, the actual depth, not a toy version), and marketing, in a single login, with one bill, priced in AUD.
GST, ABN validation against the Australian Business Register, and ATO-ready BAS summaries aren't features you switch on. They're the foundation.
But knowing the problem so well also taught me what not to build:
- No feature-gated upsells. The free plan is genuinely usable, 10 invoices a month, a booking page, GST compliance, not a 14-day trap.
- No lock-in. You can export everything, any time. If OneBookPlus isn't right for you, leaving should be easy. (A tool confident in itself doesn't need to hold your data hostage.)
- No enterprise bloat. This is built for the tradie quoting from the van, the cleaner invoicing between jobs, the PT booking a client at 6am, not for a 200-person finance department.
What I'd tell anyone choosing business software in Australia
Honestly, whether or not you ever look at OneBookPlus, here's what a decade of this taught me to check:
- Does it put your ABN on every invoice automatically? (No-ABN invoices risk 47% withholding.)
- Does it handle the 10% GST line without you thinking about it, and can it produce a BAS summary you can actually lodge from?
- Can you do it from your phone, on-site? Most real work doesn't happen at a desk.
- What does the whole stack cost? Not the headline price of one tool, the sum of all the tools you'll actually end up running.
- Can you get your data out? If the answer is unclear, that's your answer.
If a single all-in-one fits how you work, great, that's the gap I built OneBookPlus to fill, and you can try it free. If you need deep, specialised job management above all else, tools like ServiceM8 or Tradify are more mature there, and I'll happily say so. The point isn't "use mine." The point is: you started a business to do the thing you're good at, not to spend your weekends reconciling five apps that were never designed to work together.
Losing weekends to spreadsheets at BAS time shouldn't be anyone's normal. That's the whole idea.
Bishal Shrestha, Founder, OneBookPlus
