Best Invoicing App for Sole Traders in Australia (2026): 8 Apps Ranked

The best invoicing app for sole traders in Australia is InvoiceSonic: it sends an invoice from your phone in under a minute, tracks who has paid and chases late payers, all on a free tier. The best free tool is Invoice-Generator.com.au, which produces an ATO-compliant PDF with no signup and nothing stored on a server. We ranked eight apps on cost, GST handling and whether they send and track, then split the list by the decision that actually matters: whether you have crossed the $75,000 GST registration threshold yet.

Quick comparison

"No" under GST tracking means the app prints 10% GST on the invoice but does not total it for your BAS. *Thriday's free plan requires a Thriday bank account.

The $75,000 question: which group are you in?

In Australia you must register for GST once your GST turnover reaches $75,000 in a 12-month period, and you have 21 days to do it. Below that line your invoice carries no GST and you lodge no BAS, so a paid app's accounting features are dead weight. Above it, you need GST tracking and a BAS-ready report.

• Before you register for GST — a free generator or free app is enough. InvoiceSonic, Invoice-Generator.com.au and Zoho Invoice cover this stage for $0.
• After you register — pick an app that totals GST and prepares your BAS: Hnry, Rounded Pro, Sole, Thriday or QuickBooks Online.

Not sure where you sit? Read our guide to the GST registration threshold in Australia first.

1. InvoiceSonic — Best overall

InvoiceSonic is a free invoicing app for sole traders who want to send, track and get paid without setting up accounting software. You create the first invoice with no signup from a phone or web browser, and it reaches your client in under a minute. What sets it apart is that sending, an invoice tracker and automatic payment reminders are all on the free tier, with a 0% InvoiceSonic transaction fee.

Pros

• No signup for the first invoice, no watermark; business details and logo are saved for next time.
• Get paid by bank transfer or PayID with no payment gateway to configure; Australian GST format built in, with NZ, UK, US and Canadian formats too.
• Invoice tracker shows who has paid, reminders chase who has not, and recurring billing handles retainers.
• iPhone app plus a browser version; the founder answers support email.

Cons

• Puts GST on the invoice but does not total GST for your BAS, so after registration you still need a bookkeeping tool.
• No bank feed or expense capture; it is an invoicing app, not accounting software.
• No native Android app at the time of writing; Android users work from the web browser.

Price: free tier with a Pro upgrade. Best for: any sole trader who wants invoices sent, tracked and chased from a mobile device without a subscription.

2. Invoice-Generator.com.au — Best free tool

Our sole trader invoice generator is a 100% free, no-signup page that produces an ATO-compliant PDF in your web browser. It is for anyone who sends a handful of invoices a month and wants no account and no client list on someone else's server: your invoice data never leaves your browser.

Pros

• No signup, no watermark, no ads; instant PDF download with logo upload and auto-calculated totals.
• The Australian tax invoice generator adds the ABN field, 10% GST and a live ATO-compliance checklist.
• Matching quote, receipt and GST calculator tools, plus profession templates.

Cons

• It generates a PDF and stops. It does not send, track or remind, which is exactly why InvoiceSonic ranks above it.
• Nothing is stored, so you keep your own records (a folder of PDFs and a spreadsheet works).

Price: free, always. Best for: sole traders under the GST threshold who send fewer than five digital invoices a month.

3. Hnry — Best for hands-off tax

Hnry is an invoicing app and accounting service in one, built for Australian sole traders and contractors. Clients pay into your Hnry account, Hnry sets aside income tax and GST, lodges your BAS and tax return, and passes the rest to you. You pay a percentage of income rather than a subscription.

Pros

• Unlimited invoices and quotes, payment reminders, expense tracking and a mobile app in the one fee.
• GST and income tax calculated and paid on your behalf; BAS lodgement included; specialist sole trader accountants on hand.

Cons

• Every client payment must flow through your Hnry account, so it cannot be used as a standalone invoicing app.
• At 1% of income the fee grows with you: $120,000 of income costs $1,200 plus GST a year, more than any subscription here.

Price: 1% + GST of every payment into your Hnry account, capped at $1,500 + GST a year, minimum $0.50 + GST on payments under $50 (at the time of writing). Best for: GST-registered contractors who would rather pay a percentage than think about tax.

4. Rounded — Best for freelancers who bill by the hour

Rounded is Australian invoicing and accounting software for freelancers, with time tracking built into the invoice. It suits designers, writers and consultants who bill hours; the Pro plan pre-fills your Business Activity Statement from invoices and the bank feed.

Pros

• Auto-reminders for overdue invoices, time tracking and a real-time tax estimate on both plans.
• Pro adds bank feeds, automatic GST tracking, pre-filled BAS and super tracking.
• iOS and Android app; 14-day trial with no card.

Cons

• No free plan, and GST tracking is only on the dearer Pro tier.

Price: Starter $23.95/month or $264.95/year; Pro $29.95/month or $329.95/year (AUD, at the time of writing). Best for: GST-registered freelancers who want their BAS mostly done for them.

5. Sole — Best Australian-built all-rounder

Sole is an Australian app for sole traders and small businesses that combines invoicing, quotes, expense capture and automatic GST and BAS calculation. It suits a small business owner who wants one local app from the first invoice through to GST registration, with a free tier that stays free and a 30-day trial of the full product.

Pros

• GST and BAS calculated automatically, with bank linking to pick up expenses.
• Invoicing with instant payment options, quotes, and a mobile app on both stores.

Cons

• Paid plan prices load dynamically and we could not verify them; check the pricing page before you commit.
• Fewer integrations than the big brands.

Price: free tier plus paid plans (check current pricing). Best for: sole traders who want one Australian app that handles GST once they register.

6. Thriday — Best bank account and invoicing in one

Thriday bundles a business bank account with invoicing, GST tracking and automated bookkeeping. It suits sole traders opening a business account anyway; the free plan includes unlimited invoices and GST tracking as long as you hold a Thriday account.

Pros

• Free plan: unlimited invoices, card payments, bank connections and GST tracking.
• Local phone, chat and email support on every plan.

Cons

• Only makes sense if you bank with Thriday; it is not a standalone invoicing app.
• BAS lodgement costs $57 and tax lodgement $97 each on the free and Time-Saver plans.

Price: free for account holders; Time-Saver $29.95/month or $299/year; Done-for-You Tax $88/month; BAS + Tax $119/month (AUD, annual commitment, at the time of writing). Best for: sole traders who want a new bank account and invoicing from one app.

7. Zoho Invoice — Best free app with a client portal

Zoho Invoice is a free invoicing app with an Australian edition that issues tax invoices, sends automatic payment reminders and accepts online payments. It suits sole traders who want a client list, recurring invoices and a portal where clients view and pay, for $0, with a 500-invoices-a-year cap that almost nobody hits.

Pros

• Free for up to two users, three projects and 500 invoices a year.
• Automatic reminders, recurring invoices, and card and e-wallet payments through supported gateways.

Cons

• Applies 10% GST to invoices but does not prepare a BAS; for that Zoho points you to the paid Zoho Books.
• Heavier setup than InvoiceSonic: allow an hour for templates, tax rates and a payment gateway.

Price: free (500 invoices a year). Best for: sole traders under the GST threshold who want a client portal and recurring invoices.

8. QuickBooks Online — Best when your accountant asks for it

QuickBooks Online is full accounting software; its entry plan, Simple Start, covers invoicing, GST tracking, BAS preparation, bank feeds and a mobile app. It suits GST-registered sole traders whose accountant wants a set of books they can log into; most Australian bookkeepers already know it.

Pros

• Tracks GST collected and paid, prepares BAS figures and reconciles bank transactions.
• Sends invoices with payment reminders and online payments, on desktop or the mobile app.

Cons

• No free plan, and the invoicing screens carry the weight of a full accounting product.
• Introductory discounts end; the renewal price is what you pay for years.

Price: paid plans available — check current pricing (Intuit's pricing page would not load at the time of writing). Best for: GST-registered sole traders who already work with a bookkeeper.

What to look for in an invoicing app for sole traders

• ATO tax invoice fields. Once registered for GST, each invoice over $82.50 must show the words "Tax invoice", your identity, your ABN, the date, a description of what was sold and the GST amount; sales of $1,000 or more must also show the buyer's identity or ABN. If an app cannot print an ABN or a GST line, it is not built for Australian businesses.
• Sends and tracks. Emailing a PDF is fine at five invoices a month. Beyond that you want sent, viewed and paid status in one place.
• Payment reminders. Automatic reminders are the biggest single time-saver.
• GST tracking, if registered. The app should total GST collected and paid each quarter so the BAS is a copy job.
• Works on a phone. Most sole traders invoice from the ute or the kitchen table; a real mobile app beats a desktop dashboard.
• Honest pricing. Watch for card fees on top of subscriptions, invoice caps on free plans, and introductory prices that jump at renewal.

Which one should you choose?

• Fewer than 5 invoices a month, not registered for GST → the free sole trader invoice generator. Download the PDF, email it, keep a copy.
• Invoices every week, want them tracked and chased → InvoiceSonic. Free, no gateway setup, reminders included.
• Just crossed $75,000 and want tax handled → Hnry if a percentage suits you, Rounded Pro if you prefer a flat fee.
• Opening a business bank account anyway → Thriday's free plan.
• Your accountant has asked for "the file" → QuickBooks Online Simple Start, or Sole to stay with an Australian vendor.

When not to use InvoiceSonic or a free generator. If you take card payments in person, Square Invoices sits on top of the reader you already own (free plan, 2.2% on online card payments at the time of writing). If you have hired your first employee, you need payroll and Single Touch Payroll, which means Xero or MYOB. If you are a tradie juggling jobs and staff, Tradify or ServiceM8 do the scheduling and raise the invoice at the end. Read how to invoice as a sole trader in Australia, and do I need an ABN to invoice if you have not applied yet.

Frequently asked questions