Best Invoicing Software for Psychologists in Australia (2026): 8 Tools Compared

The best invoicing software for psychologists Australia-wide in 2026 is InvoiceSonic, because it stores every invoice and receipt in a cloud history you can re-send in seconds when a client needs their paperwork again. If you bill a handful of private sessions a month, the free tax invoice generator on this site builds the PDF in your browser with no signup. If you want bookings, notes and claiming in one system, buy a practice management platform. We put all eight through one test: can it produce the document a client's rebate claim depends on, and reissue it without you rebuilding it?

Quick comparison

"Not listed" means exactly that: the tool's Australian pricing or feature page did not state it at the time of writing, so we have not marked it a yes.

How we tested: the receipt-for-rebate test. Three questions per tool. Can it produce one document carrying everything a private client's claim depends on — provider details, the Medicare item number for the service you provided, the session date and the amount paid? Does it store that document, so a client who rings on Wednesday gets it re-sent, not rebuilt? And can you set the tax treatment invoice by invoice, so a GST-free service does not carry a 10% line?

The worked number. In private practice the document is part of the product: the client pays A$230 in full at the end of the session and then uses your paperwork to claim, so a wrong field stalls the claim and you hear about it mid-week. A caseload of 22 private sessions a week across 44 working weeks is 968 documents a year. If one in twenty comes back — a wrong service date, a missing provider number — that is 48 reissues a year. Rebuilding each at six minutes is 288 minutes, or 4.8 hours; re-sending a stored copy takes thirty seconds, so the same 48 cost 24 minutes. Stored history is worth roughly 4.4 hours a year.

Who fails the test. A free PDF generator, ours included, passes the first question and fails the second outright: it stores nothing, so every reissue is a retype. InvoiceSonic's free plan and Bookipi's free plan cap saved invoices low enough that a real caseload burns through them in week one. Wave is weakest on the third question: its GST handling is generic rather than ATO-shaped. Zoho Invoice, Square Invoices, Xero and Rounded all send, store and re-send properly, and none of the eight is a claiming system.

1. InvoiceSonic — Best overall

InvoiceSonic builds a professional Australian tax invoice in about a minute and keeps every one in a secure cloud history, which is the exact shape of the receipt-for-rebate problem. You raise the document once, and when the client comes back for it in March you re-send the same file instead of reconstructing a session.

It is the strongest of the eight on the test. Provider details, the item number for the service you provided and the session date go on as fields you set once and reuse, and the tax line is yours, so a GST-free service is not forced to carry 10%. Pro adds recurring invoices, automatic reminders and open tracking. An email receipt goes out the moment you mark a session paid, which is the document most clients are really asking for. Payment is by bank transfer or PayID with no InvoiceSonic transaction fee, so a A$230 session arrives as A$230.

Pros

• Secure cloud history plus an automatic email receipt on payment, so a reissue is a re-send, not a rebuild.
• Recurring invoices and automatic reminders on Pro, which suits a client booked into a weekly block.
• Bank transfer and PayID with no InvoiceSonic transaction fee, so nothing is shaved off a A$230 session.

Cons

• Free stops at 3 saved invoices, 1 tracked send and 1 reminder a month, and the 7-day Pro trial needs a card.
• Not a practice management system and not accounting software: no bookings, notes, claiming, bank feeds or BAS.

Price: at the time of writing, the free plan is A$0 and the first invoice needs no sign-up and no credit card; Pro is A$19 a month billed monthly, or A$168 a year billed annually, which is A$14 a month and saves A$60. Best for: solo and small private practices who want a client's paperwork stored, sent and reissued in seconds.

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

Invoice-Generator.com.au is a free tax invoice generator that produces a finished PDF in your browser with no signup, no watermark, no ads and no invoice limit. The detail that matters here is where the data goes: nothing you type leaves the browser, so a document naming a client sits on nobody's server, including ours.

The Australian tax invoice generator is pre-set with an ABN field, a GST line you control and a live compliance checklist, and item numbers and session dates go into the description lines. There is a separate free receipt generator for the document showing the amount paid and the date paid, which is often what a client actually needs; our guide to the difference between an invoice, a quote and a receipt says which to hand over. On the reissue half of the test it fails cleanly: nothing is saved, so last July's paperwork means typing it again.

Pros

• Free forever, no signup, no watermark and no invoice limit.
• Invoice data never leaves the browser, the right default when a line item names a person and a service.

Cons

• No stored history, so every reissue is a retype and there is no record of what you sent.
• No sending, tracking, reminders, saved client list or payment collection.

Price: free, always. Best for: part-time psychologists with a small private caseload, and anyone who needs one properly formatted document today.

3. Zoho Invoice — Best free tool that sends and stores

Zoho Invoice is free, with Zoho stating no cost and no contracts, and unlike a PDF generator it sends the document, saves the client and keeps the history. That combination is rare at A$0.

It passes the first two questions: the invoice sends, the record stays, and a reissue is a re-send. Automatic reminders were not stated on the Australian page at the time of writing, so we have not marked them a yes. The trade-off is the surroundings — a large product suite behind it, a dense interface, and support aimed at paid-suite customers.

Pros

• Genuinely free with no contract, and it sends and stores rather than only building a PDF.
• A saved client list and full invoice history, so the reissue half of the test costs nothing.

Cons

• Dense interface and a large upsell suite behind it, with support aimed at paying customers.
• Automatic reminders are not listed, so unpaid gap fees are chased by hand.

Price: free at the time of writing. Best for: psychologists who want sending and storage for nothing.

4. Square Invoices — Best if clients pay by card on the day

Square Invoices gives you unlimited free invoices, estimates and automatic reminders, and the client pays by tapping a card link in the email. For clients who settle before they leave, that is real cash flow.

It passes the storage question comfortably and half-passes the rest, because the card fee is the real price. At 2.2% on online card payments, collecting a A$230 session costs A$5.06; across the 968 sessions in our worked example that is A$4,898.08 a year, against A$168 for InvoiceSonic Pro billed annually and nothing for a PayID transfer. Estimate auto-convert and milestone schedules sit behind Plus.

Pros

• Unlimited free invoices with automatic reminders and stored history on the free plan.
• Clients pay from the invoice itself, so the gap fee is usually settled the same day.

Cons

• 2.2% on online card payments is A$4,898.08 a year across 968 sessions at A$230.
• Estimate auto-convert and milestone schedules are Plus only, at an extra monthly cost.

Price: at the time of writing, free, or Plus at AUD $30 per month; 2.2% on online card payments. Best for: practices whose clients expect to tap a card and who have priced the fee in.

5. Xero — Best when a bookkeeper already runs your practice

Xero is accounting software rather than an invoicing app, and that distinction decides whether it belongs in your practice. It is the right answer when a bookkeeper already works in Xero and wants invoices, bank feeds, GST and the BAS in one system instead of three.

On the test it passes, but slowly. Everything is stored and re-sendable and the tax treatment is controllable per line, but you are learning a general ledger to send a client a document, and there is no free plan. For a sole practitioner it is more software than the job needs.

Pros

• Invoicing, bank reconciliation, GST and BAS in one system your accountant already knows.
• Bank feeds mean the BAS is assembled from real transactions instead of rebuilt at the deadline.

Cons

• No free plan, and nothing shaped for a health practice to start from.
• Considerably more software than a solo psychologist needs, with the learning time to match.

Price: paid plans available — check current pricing. Best for: practices whose books a bookkeeper already keeps in Xero.

6. Rounded — Best Australian app for a sole trader

Rounded is Australian-built specifically for sole traders and freelancers, and it puts invoicing, expenses and tax estimates in one place. For a psychologist who has never set money aside for tax, the estimate justifies the subscription.

It sends, it stores and it handles Australian tax properly, and it is the cheapest paid option here: Solo is $99 a year regular AUD at the time of writing, against A$168 for InvoiceSonic Pro billed annually. That is a real reason to pick it over our number one if expenses and a tax estimate matter more than reminders.

Pros

• Built in Australia for sole traders, so expenses, GST and tax estimates are ATO-shaped.
• Solo is $99 a year regular AUD at the time of writing, cheaper than most paid apps here.

Cons

• No free plan at all, so you cannot run a quiet month on it for nothing.
• Automatic reminders are not listed, and promotional pricing varies.

Price: at the time of writing, Solo $99 per year regular and Pro $70 per month regular in AUD; promotional pricing varies. Best for: sole-trader psychologists who want invoicing, expenses and a tax estimate in one app.

7. Wave — Best free invoicing with basic books attached

Wave is free in Australia at the time of writing and gives you invoicing and light accounting in one account. The history is stored, so reissues are easy.

It fails the third question harder than anything else here. Wave's GST handling is generic rather than ATO-shaped, the wrong default when most of your services are GST-free and the tax line should read nothing. You can make it work, but every tax decision stays with you and your accountant.

Pros

• Free in Australia at the time of writing, with invoicing, stored history and basic accounting together.
• No trial card and nothing to cancel, so a new practice can test it without commitment.

Cons

• GST handling is generic rather than ATO-shaped, a poor fit for mostly GST-free work.
• Australian support is thin, and payments and payroll are US and Canada centric.

Price: free in Australia at the time of writing. Best for: new practices with no budget who will confirm every tax treatment.

8. Bookipi — Best budget app for recurring billing

Bookipi is a simple invoice app that syncs between web and mobile, and it lists overdue reminders and recurring invoices even on the free plan, which is genuinely useful for a client booked into a block of weekly sessions.

The catch is volume. Free stops at 3 invoices a month and a caseload of 22 sessions a week gets there on the first morning, so Bookipi passes on Starter and not on free.

Pros

• Recurring invoices and overdue reminders even on the free plan.
• Web and mobile stay in sync, so a document started between sessions finishes on the laptop.

Cons

• 3 free invoices a month is far too few for a real private caseload.
• Priced in USD, so what you pay changes with the AUD.

Price: at the time of writing, free for 3 invoices a month; Starter US$9.99 per month; Professional US$52 per month. Best for: part-time psychologists who want billing to repeat itself.

What to look for in invoicing software for psychologists

Psychology billing is low volume and high consequence: twenty-two documents a week is nothing, but each one is a person's claim, and a mistake costs you a client email rather than a late payment.

• Stored history you can re-send. This is the whole test: it turns 48 reissues a year from 4.8 hours into 24 minutes, and March's copy is identical to July's.
• Room for the details a claim depends on. Provider details, the Medicare item number for the service you provided, the session date and the amount paid must sit on one document without a workaround. Current requirements come from Services Australia and your professional body, not a template you downloaded.
• Control of the tax line, invoice by invoice. Most psychology services are GST-free as a health service, so the invoice usually carries no GST line even when the practice is registered. Whether that applies to a given service is a question for the ATO or your accountant; our GST calculator helps only once you know the treatment.
• A receipt, not just an invoice. When a client pays at the end of the session, the useful document shows the amount paid and the date paid, not an amount owing. Some tools email that automatically; others leave it to you.
• An ATO-shaped tax invoice underneath. Where you are registered for GST the ATO expects the words "Tax invoice", your identity and ABN, the date, a description of what was supplied, the GST amount, and the buyer's identity or ABN for sales of $1,000 or more. Full list in our tax invoice requirements guide.
• Where the client's data lives. An invoice here names a person and a service, so ask where the file sits and what happens if you stop paying — with InvoiceSonic, historical invoices stay accessible after a downgrade.

Which one should you choose?

Cost the year, not the month. At the time of writing, 968 documents a year cost A$0 with the free generator, Zoho Invoice or Wave; A$168 with InvoiceSonic Pro billed annually; $99 a year with Rounded Solo; US$9.99 a month with Bookipi Starter; and A$4,898.08 in card fees with Square if every client taps a card.

• If you see a handful of private clients a month → the free Australian tax invoice generator, and email the PDF yourself.
• If you run a real caseload and want reissues to take seconds → InvoiceSonic on Pro, with the cloud history and receipt-on-payment doing the work.
• If you will not pay a subscription but need sending and storage → Zoho Invoice.
• If expenses and a tax estimate matter more than reminders → Rounded, at $99 a year regular AUD for Solo at the time of writing.
• If your clients settle by card at the door → Square Invoices, with the 2.2% written into your session fee.

When not to use InvoiceSonic or a free generator. If what you need is an appointment book, clinical notes and claiming in one place, none of these eight is the answer: practice management systems such as Halaxy, Cliniko and Power Diary are a different category built for exactly that. With a second clinician, payroll and a quarterly BAS you are in accounting territory, and Xero or MYOB is the honest recommendation. If a tax estimate matters more than stored receipts, Rounded is Australian-built for sole traders and costs less per year. A free PDF generator, ours included, is wrong the moment a client asks for the same document twice. And no app makes your billing correct on its own: confirm what a claim requires with Services Australia and your professional body, and your GST position with the ATO or your accountant. Our guide to invoicing software for allied health covers the mixed private, NDIS and third-party-payer case.

Frequently asked questions