If you run an NDIS business, you already know your books don’t work like a normal small business. Most of your income is GST-free, but you still have to think about GST. Your invoices need extra details that a regular invoice doesn’t. And your payroll runs under an award that has its own rules for broken shifts and sleepovers. It’s a lot to keep on top of, especially when you’re also trying to deliver good care to your participants.
This guide walks through the basics in plain language, from GST and invoicing to payroll and record keeping. None of this is financial advice for your specific situation, so if something here doesn’t quite match yours, it’s worth having a chat with a bookkeeper who works with NDIS providers regularly.
Why NDIS bookkeeping is different from normal bookkeeping
An NDIS provider is still a service business at heart. You deliver support hours, send invoices, pay your staff, and reconcile your bank account at the end of the month, same as any small business does.
The difference is that you’re answering to more than one set of rules at once. The ATO cares about your GST and your BAS. The NDIA cares about how you claim and what goes on your invoices. The NDIS Quality and Safeguards Commission cares about your registration and the records behind the care you deliver. A lot of the bookkeeping headaches in this sector come from treating those as one system, when they’re really three separate ones that all touch the same transaction.
GST and NDIS: the part everyone gets confused about
Most disability supports delivered to NDIS participants are GST-free. But GST-free doesn’t mean you can ignore GST altogether, and that trips a lot of providers up.
Here’s what actually needs to be true for a support to be GST-free:
- The participant has an active NDIS plan.
- The support is listed in that plan’s statement of supports.
- There’s a written agreement in place saying the supply is of those supports.
- The support falls under the relevant GST-free NDIS determination.
If any one of those isn’t met, the support might not be GST-free after all. A written agreement doesn’t have to be one fancy contract either. It can be a combination of things like a service agreement, an email, or an invoice, as long as together they say what’s being supplied.
One thing that catches providers out is registration. Even if every dollar you bring in is GST-free, that income still counts toward the yearly earnings limit that decides whether you need to register for GST. So you can be required to register even though you never actually charge it. There’s an upside too. Once you’re registered, you can usually claim back the GST you pay on things you buy for the business, like software, vehicles, or insurance. Providers who skip registration because “we’re GST-free anyway” often end up paying that GST and never getting it back.
Plan management types and how they affect your invoicing
How a participant’s plan is managed decides who you actually bill, and how quickly you get paid.
| Plan management type | Who you invoice | Price limits apply? | What it means for your books |
|---|---|---|---|
| NDIA-managed | Claimed through the provider portal | Yes | Payments often arrive as one bulk deposit covering several claims |
| Plan-managed | The participant's plan manager | Yes | Separate remittances, and the format can differ manager to manager |
| Self-managed | The participant directly | No | You invoice and follow up payment yourself, like normal |
The NDIA-managed side is usually where reconciliation gets messy. A single deposit in your bank feed might cover a dozen different claims across several participants, so matching it to invoices one by one just doesn’t work. It’s much easier to reconcile from the claim payment summary the NDIA gives you, rather than trying to line up deposits with invoices.
What has to be on an NDIS invoice
A normal tax invoice isn’t enough for NDIS claims. There’s specific detail the NDIA expects to see, and getting it right the first time saves you a lot of back and forth later.
Your invoice should include:
- Your business name and ABN
- The participant’s name and NDIS number
- The support item number from the NDIS Support Catalogue
- The quantity and rate for each support delivered
- The claim type, if one applies (like travel or short notice cancellation)
- The date, or dates, the support was actually delivered
- The total amount
Each invoice should only cover one participant, even if it lists several different supports for them. Setting up templates in your accounting software once, with these fields built in, saves you from retyping the same details wrong every single time you bill.
Evidence behind every claim
This is probably the part providers underestimate the most. The support was delivered, the participant was funded, the price was right, and the claim can still get flagged if there’s no paperwork behind it.
The NDIA runs payment assurance checks on claims. If your records don’t support what you’ve claimed, you might have to pay the money back. What you want sitting behind every claim is a service agreement, proof the support is in the participant’s plan, a roster or shift record showing who delivered it and when, a progress note, and the invoice itself. A lot of this evidence lives in your rostering or client management system, not your accounting software. It helps to build a habit of linking the two together, rather than treating them as separate worlds. Chasing this up long after the fact, once a plan manager or the NDIA has already queried a payment, takes far longer than keeping it tidy as you go. This is also where keeping on top of your accounts receivable matters.
Payroll for support workers: the SCHADS award
If you employ support workers, payroll is often where the real complexity sits. The Social, Community, Home Care and Disability Services Industry Award, usually just called SCHADS, has a few quirks that a standard payroll setup doesn’t always handle properly.
A few things worth knowing:
- Broken shifts. A morning visit and an evening visit for the same participant, with a gap in between, counts as a broken shift. There’s a minimum payment for each part of the shift, even if the visits themselves are short.
- Sleepovers. Workers who stay overnight get paid under a different structure to normal hours, with its own minimums for any work done right before or after the sleepover.
- Travel. Time spent travelling between participants often attracts its own entitlements, and providers who don’t account for this properly can end up quietly underpaying staff over time without realising it.
Because these rules change from time to time, it’s worth checking your payroll setup isn’t still running on assumptions from a few years ago.
A few habits that make NDIS bookkeeping easier
One thing that helps a lot is splitting your income by service type, such as core supports, support coordination, or capacity building. That way you can actually see where your margin comes from, instead of lumping everything under one generic sales line.
It also helps to keep your rostering and accounting data talking to each other, even loosely. A provider who reconciles weekly, rather than letting a month build up, tends to catch mismatched claims and payroll errors while they’re still small and easy to fix. None of this needs to be complicated. It’s mostly about consistency, and having someone keep an eye on ongoing bookkeeping during a busy roster week, so nothing slips through the cracks and you’re not scrambling to sort it out later.
Your books shouldn't be the hard part of running an NDIS service
Running an NDIS business means keeping on top of compliance and payroll while you’re also actually supporting your participants. That’s a lot for one person to carry, and it’s easy for the bookkeeping side to slip when service delivery is busy, which it usually is.
Getting the basics right early saves you a lot of stress down the track. That means clear invoices, proper claim evidence, and payroll that’s set up correctly under SCHADS. If your books have already fallen behind, or supplier bills and payments are starting to pile up alongside everything else, it’s worth getting your accounts payable sorted before it turns into a bigger problem. Elite Plus Bookkeeping can help set your NDIS bookkeeping up properly, or clean up a file that’s gotten away from you. Get in touch if you’d like a hand sorting it out.
Frequently Asked Questions
Do NDIS providers need to register for GST even if their income is GST-free?
Often yes. GST-free income still counts toward the yearly earnings limit that decides whether you need to register, so a provider can be required to register even though they never actually charge GST on their supports.
Can I claim GST credits on business expenses if my income is GST-free?
Generally yes, as long as you’re registered for GST. You can usually claim back the GST you pay on things like software, vehicles, and insurance, even though your income itself is GST-free.
What happens if I claim for a support that wasn't in the participant's plan?
The claim can be rejected or asked to be repaid, and the GST-free treatment can fall away too, since being listed in the plan is one of the conditions. It’s worth checking the plan before delivering something new, not after you’ve already claimed for it.
How long should I keep NDIS records for?
There are a few different clocks running at once. The ATO generally wants business records kept for five years, employee records need to be kept for seven years, and your NDIS obligations around service delivery evidence sit on top of that. When in doubt, keep the longer period.
Is bookkeeping much harder once I start employing support workers?
It usually is. A sole trader delivering support directly has fairly simple bookkeeping. Once you take on staff, payroll, superannuation, and SCHADS award compliance all show up at once, and that’s usually when providers start looking for extra support.
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