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

The best invoicing software for physiotherapists Australia-wide in 2026 is InvoiceSonic, because a physio week is rarely one funding stream and the invoice changes shape for each one. If you only need one compliant PDF today, the free Australian tax invoice generator on this site builds it in the browser, no signup. If your real problem is bookings, clinical notes and claiming, that is a practice-management system, not an invoicing app. We put all eight tools through one test: can it produce a private, NDIS, DVA and workers-compensation invoice in the same week, with the right tax treatment and the right reference numbers?

Quick comparison

"Not listed" means exactly that: the tool's own Australian page did not state the feature at the time of writing, so we have not marked it a yes. "Generic" means a tax rate not shaped around Australian tax-invoice rules.

How we tested: the funding-mix test. Three questions per tool. Can it apply a different tax treatment to different invoices, so one carries 10% GST and the next is GST-free? Can it store the reference numbers each funding source asks for — a participant's NDIS number and support item number, an insurer's claim number, a scheme's referral reference — without retyping? And can it bill somebody who is not the patient — the plan manager, the insurer or the department pays, not the person on the table?

The worked number. Most NDIS supports are GST-free where they are a reasonable and necessary support in a participant's plan, so an NDIS invoice often shows no GST even when the provider is registered, while other work may be invoiced with GST included. Whether a service is GST-free depends on the service and the funding source, so settle that with the ATO or your accountant, not an app's default. Now the arithmetic. A $95 consult invoiced GST-inclusive contains $8.64 of GST ($95 ÷ 11). If 20 of your 60 invoices a month carry a GST line they should not, that is $172.73 a month and $518.18 a quarter to unwind as a BAS correction — every quarter, until somebody notices. The GST calculator does that sum for any fee.

Who fails the test. None of the eight passes all three questions outright. InvoiceSonic is the only tool here publishing a dedicated NDIS invoice template, which removes the reference-number problem for the stream most likely to be queried. A free PDF generator passes the first two by brute force — type any tax line and any reference you like — and fails the third, because nothing is stored. The other six send properly formatted invoices, but none stated a funding-scheme template or reference field on the pages we checked at the time of writing. Wave is the weakest fit: generic GST handling is the wrong start for a week mixing GST-free and taxable work.

1. InvoiceSonic — Best overall

InvoiceSonic builds a professional tax invoice in about a minute and ships a dedicated NDIS invoice template alongside its ABN, sole trader and freelance templates. For a physio whose week mixes funding sources, that is the difference between an invoice a plan manager pays on sight and one that comes back queried.

It is the strongest partial pass here. Australian tax handling is built in — ABN field, BSB format, 10% GST label — as part of localised support across 19 countries. On Pro the invoice sends on a schedule, tells you the moment it is opened and chases it if nobody pays, which is what you want when an insurer is sitting on a claim. Bank transfer and PayID need no gateway and carry no InvoiceSonic transaction fee, so a $95 consult arrives as $95.

Pros

• A dedicated NDIS invoice template — the only one of the eight tools here that publishes one.
• Recurring invoices, automatic reminders and invoice open tracking on Pro, so an unpaid insurer invoice chases itself.

Cons

• Not a practice-management system: no bookings, clinical notes, scheduling or claiming, so a busy clinic still runs one alongside it.
• The free plan stops at 3 saved invoices, 1 tracked email send and 1 automatic reminder a month, and the 7-day Pro trial requires a card.

Price: at the time of writing, free is A$0 and the first invoice needs no sign-up or card; Pro is A$19 a month billed monthly, or A$168 a year billed annually — A$14 a month, saving A$60. Best for: physios billing private, NDIS, DVA and workers-compensation work from one place.

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. It is the right tool when a patient asks for an invoice at the desk and you are not subscribing to anything.

The Australian tax invoice generator is pre-set with an ABN field, a 10% GST line you can switch off, and a live compliance checklist that flags a missing ABN before you send. Nothing you type leaves the browser, which matters when the invoice carries a patient's name and a claim number, and there are separate free tools for a quote and a receipt. It fails the third question outright: you can type a GST-free line and any reference a scheme asks for, but nothing is remembered, so the NDIS number is re-entered every visit.

Pros

• Free forever, no signup, no watermark, no invoice limit.
• Invoice data never leaves the browser, so patient details are not uploaded anywhere.

Cons

• No sending, tracking or automatic reminders — chasing an insurer is entirely on you.
• No saved patient list and no payment collection, so every reference number is retyped.

Price: free, always. Best for: physios seeing mostly private patients and sending a handful of invoices a month.

3. Zoho Invoice — Best free tool that actually sends

Zoho Invoice is free — Zoho states no cost and no contracts — and unlike a PDF generator it sends the invoice, saves the patient and keeps the history. For a physio who wants sending and a billing record for nothing, it is the strongest free option here.

It half-passes. It sends, stores and formats an Australian invoice properly, so a plan manager gets something they can process. But no funding-scheme template, reference field or per-invoice tax treatment was stated on the Australian page at the time of writing, — test all three on a live invoice first.

Pros

• Genuinely free with no contract, and it sends and stores invoices rather than only building a PDF.
• Invoicing in 19-plus languages, useful when a participant's family prefers another language.

Cons

• The interface is dense, and it is the front door to a large upsell suite.
• Support is really aimed at paid-suite customers, and no funding-scheme template is listed.

Price: free at the time of writing. Best for: physios who want sending, tracking and a saved patient list for A$0.

4. Square Invoices — Best if patients pay by card

Square Invoices gives you unlimited free invoices, estimates and automatic reminders, and the patient pays by tapping a card link in the email. For a clinic where people expect to pay on the day, that removes an awkward desk conversation.

Free-plan reminders help chase an insurer that has gone quiet, but no funding-scheme template is stated and estimate auto-convert and milestone schedules sit behind Plus. The real cost is the card fee. At 2.2% on online card payments a $95 consult costs $2.09; 60 consults a month is $125.40, and on a year of $68,400 in billings that is $1,504.80 in card fees. The same invoices paid by bank transfer cost nothing.

Pros

• Unlimited free invoices with automatic reminders on the free plan.
• Patients pay by card from the invoice itself, so private consults settle the same day.

Cons

• 2.2% on online card payments is $1,504.80 a year on $68,400 of billings.
• Estimate auto-convert and milestone schedules are Plus only, and there is no funding-scheme template.

Price: at the time of writing, free, or Plus at AUD $30 per month; 2.2% on online card payments. Best for: private-heavy practices whose patients pay by card.

5. Xero — Best for a clinic with a bookkeeper and a BAS

Xero is accounting software, not an invoicing app, and that distinction decides whether it suits you. It is the right answer when your bookkeeper already works in Xero and wants invoices, bank feeds, GST and BAS in one system.

There is a specific argument for it here: a wrong tax treatment eventually gets fixed in the accounting file, so keeping invoicing there removes a re-keying step. Against that, there is no free plan, no funding-scheme template was stated, and for a sole practitioner sending 60 invoices a month it is far more software than the job needs.

Pros

• Invoicing, bank reconciliation, GST and BAS in one system your accountant already knows.
• Tax treatment lives where the BAS is prepared, so a correction happens once, not twice.

Cons

• No free plan, and no funding-scheme template or reference field we could verify.
• Overkill for a solo physio who wants to send an invoice from a phone between patients.

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

6. Rounded — Best for invoicing plus a tax estimate

Rounded is Australian-built for sole traders and freelancers, and it does invoicing, expenses and tax estimates in one place. For a physio who contracts into a clinic and has never set money aside for tax, that estimate pays for the subscription.

It sends invoices and handles Australian tax properly, which puts it ahead of the overseas tools. No funding-scheme template is listed, so on our test it is unconfirmed rather than a fail — ask their support before relying on it for NDIS work. Note the price: Solo is $99 a year regular AUD at the time of writing, cheaper than InvoiceSonic Pro billed annually, and it estimates your tax as well. That is a real reason to pick it over our number one.

Pros

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

Cons

• No free plan, so you cannot trial a full billing month at no cost.
• No funding-scheme template is listed, and promotional pricing varies, so check year two.

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 physios who want invoicing, expenses and a tax estimate in one app.

7. Wave — Best free invoicing with accounting attached

Wave is free in Australia at the time of writing, and gives you invoicing and basic accounting in the same account. If you want books behind your invoices without a subscription, nothing else here is free.

It is the weakest fit of the eight for a mixed funding week, and we would rather say so plainly. Wave's GST handling is generic rather than ATO-shaped, which is the wrong starting point when some invoices should be GST-free and others should not.

Pros

• Free in Australia at the time of writing, including basic accounting alongside the invoicing.
• A no-cost set of books for a physio just starting out.

Cons

• GST handling is generic rather than ATO-shaped, so tax treatment needs checking on every invoice.
• Australian support is thin, and payments and payroll are US and Canada centric.

Price: free in Australia at the time of writing. Best for: a new solo physio who wants free invoicing plus basic books.

8. Bookipi — Best on a small budget with reminders included

Bookipi is a simple invoice app that syncs between web and mobile, and it lists overdue reminders and recurring invoices on every plan, including free. Chasing a slow insurer is exactly what those two do.

The catch is volume: the free plan stops at 3 invoices a month, so a caseload of 60 needs Starter, priced in US dollars and moving with the exchange rate. It sends and reminds but publishes no funding-scheme template, so reference numbers are typed by hand.

Pros

• Overdue reminders and recurring invoices even on the free plan.
• Web and mobile stay in sync, so an invoice started on the phone finishes on the laptop.

Cons

• 3 free invoices a month does not survive a real caseload.
• Priced in USD, so the cost of your invoicing moves with the Australian dollar.

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 physios with a small caseload who want the chasing automated.

What to look for in invoicing software for physiotherapists

Physio billing is not high-volume, it is high-variety: one 40-minute appointment can be invoiced four ways depending on who pays. Flexibility per invoice matters more than the feature list, and tax treatment matters more than the subscription.

• Per-invoice tax treatment, not one global switch. You need a GST-inclusive invoice and a GST-free one from the same account in the same week. What applies to a service depends on the service and the funding source — settle that with the ATO or your accountant first.
• Somewhere to put the scheme's reference numbers. An NDIS invoice needs the participant's name and NDIS number, the support item number from the NDIS Price Guide or Support Catalogue, the service dates and hours, and your ABN. DVA and workers-compensation invoices carry their own — check the requirements with the scheme or insurer.
• A bill-to party who is not the patient. Plan-managed, self-managed and NDIA-managed participants are billed differently, and NDIA-managed claims go through the myplace provider portal. If a tool assumes the person treated is the person paying, half your invoices need a workaround.
• A proper Australian tax invoice. Where you are registered for GST it must carry 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. The full list of tax invoice requirements is on the ATO site.
• Records that outlast the subscription. Health billing gets queried well after the fact. InvoiceSonic keeps historical invoices accessible after a downgrade; a browser-based generator keeps nothing, so save your own copies.
• Whether your problem is invoicing or practice management. One physio invoicing between patients has an invoicing problem. A clinic with a diary, clinical notes and claiming has a practice-management problem, and nothing here solves it. Our allied health guide draws the same line.

Which one should you choose?

Price it at 60 invoices a month, a realistic solo caseload. At the time of writing that is A$0 with the free generator, Zoho Invoice or Wave; A$168 a year with InvoiceSonic Pro billed annually; $99 a year with Rounded Solo; US$9.99 a month with Bookipi Starter; and no subscription with Square but $1,504.80 a year in card fees if every patient taps. The cheapest subscription is not the cheapest outcome, and a $518.18 quarterly BAS correction beats all of them.

• If you see mostly private patients and send a few invoices a month → the free tax invoice generator, and email the PDF.
• If your week mixes private, NDIS, DVA and workers-compensation work → InvoiceSonic on Pro, starting from its NDIS invoice template.
• If you want sending and a saved patient list for nothing → Zoho Invoice, and accept the dense interface.
• If patients expect to pay by card on the day → Square Invoices, with the 2.2% written into your fee.
• If a bookkeeper already prepares your BAS → Xero, so tax treatment is fixed in one place, not two.

When not to use InvoiceSonic or a free generator. If what you need is a diary, clinical notes and claiming, you are shopping in the wrong category: clinical practice-management systems such as Cliniko, Nookal and Halaxy do bookings, notes and claiming, and an invoicing app does none of it. If you want tax and expenses handled alongside the invoicing, Rounded is Australian-built for sole traders and Solo is $99 a year regular AUD at the time of writing. Once there are several practitioners, a payroll and a quarterly BAS, that is accounting software territory — Xero or MYOB. And a free PDF generator, ours included, is the wrong choice the moment the same participant is invoiced fortnightly for a year. Our guide for NDIS providers goes deeper.

Frequently asked questions