Free Invoicing App for Freelancers

Most Australian freelancers start out with no proper system at all. You're writing invoices in a Word doc or Google Sheets, tracking expenses in a Notes app, guessing at GST when BAS time rolls around, and hoping you haven't missed a payment somewhere in your inbox. Eventually you cobble together Rounded for invoicing, HubSpot for CRM, Calendly for bookings, and maybe Wave for basic accounting, four tools that don't talk to each other and still leave you doing manual data entry at tax time. OneBookPlus replaces the entire stack with one free platform built for how Australian sole traders and freelancers actually work.

The platform covers the full freelance workflow from lead to lodgement. A potential client books a discovery call through your OneBookPlus booking page. You create a detailed quote with project phases, deliverables, and payment milestones, with GST calculated automatically. The client accepts with one click and you convert it into a job. As you work, you track time against the project. When a milestone is hit, convert that phase to a GST-compliant invoice with one tap. The client pays online via the invoice link. Card payments via Stripe land in your bank account within days. Automated reminders chase overdue invoices so you never have to send an awkward “just following up” email again.

Your Daily Workflow

Picture a typical Wednesday. You check your OneBookPlus dashboard over coffee: two invoices paid overnight totalling $2,800, one quote awaiting response, and a new booking request from your website. You accept the booking and create a three-phase quote: discovery at $600, first draft at $1,200, and final delivery at $900. GST is added automatically. You send it with one tap. Mid-morning, a client accepts a different quote. You convert phase one to an invoice instantly. At lunch, you log your Adobe Creative Cloud subscription and a co-working space day pass as business expenses, receipt photos attached. End of month: you open your profit and loss report. Revenue: $9,200. Expenses: $1,400. Profit: $7,800. Your GST summary is ready to send to your accountant or lodge yourself through the ATO portal.

Expenses & Accounting

When a client pays an invoice, the payment is recorded against that invoice, so the overdue list is always the real one. Drop in a receipt or a supplier PDF and the scanner reads the supplier, date, GST and total off it. Business expenses like software subscriptions, equipment, co-working memberships, and travel are categorised and tracked against revenue so you can see exactly what you're taking home after costs. GST collected on invoices and GST paid on expenses are separated cleanly. At BAS time, export a one-click summary showing G1, 1A, G11, and 1B figures ready for lodgement. If you're not yet registered for GST (under the $75,000 threshold), simply toggle it off. Invoices go out without GST and the system adapts.

Getting Started

Sign up in under a minute. No credit card, no trial period, genuinely free. Add your ABN, upload your logo, and set your bank details for payment. Import existing clients from a CSV or add them as you go. Most freelancers send their first invoice within five minutes of signing up. The free plan includes 10 invoices a month, 5 quotes a month, expense tracking, and up to 250 contacts, enough to get a small freelance practice off the ground. When you need unlimited invoices and quotes, more team members, or advanced reporting, upgrade to a paid plan that still costs less than Rounded alone.