NDIS Accountant Adelaide | Tax Returns, Bookkeeping, BAS, and Compliance
From sole trader support workers to registered NDIS provider organisations with multiple staff and funding streams, our Adelaide accountants understand the compliance complexity that comes with operating in the scheme.







NDIS Accounting for Every Type of Provider in South Australia
The NDIS has created an entire sector of new businesses across South Australia — from individual support workers obtaining their first ABN to large registered provider organisations managing millions in NDIA funding. The accounting challenges at each level are fundamentally different, and the compliance consequences of getting it wrong are serious.
The Kalculators works with every type of NDIS provider in Adelaide and regional South Australia. We understand the NDIS price guide, the NDIA audit process, GST treatment of NDIS supports, and how to structure a provider business correctly from day one.
NDIS Accounting for Every Provider Type in South Australia
For a support worker, an unregistered provider, a registered organisation, or a plan manager, the compliance obligations differ at each level. We understand each one.

Sole trader support worker
ABN vs employment, GST advice, NDIS deductions, super for self-employed, and service agreements.

Unregistered NDIS provider
Invoicing compliance, GST position, structure choice, BAS requirements, and NDIS income tax returns.

Registered NDIS provider (organisation)
Tax returns, NDIA audits, payroll, STP compliance, BAS lodgement, and Xero with funding codes.

Support coordinator
Contractor vs employee rules, NDIA invoicing, service agreements, and claiming coordination expenses.

Plan management provider
Revenue recognition, NDIA reporting, participant budget tracking, and ATO obligations on income.
Our NDIS Accounting Services for Adelaide Providers
All services are available in person at our three Adelaide offices or entirely online via our secure client portal. The same qualified accountant manages your file from start to finish — no outsourcing, no handoffs.
Tax Returns for NDIS Providers and Support Workers
Sole trader support workers, plan managers, support coordinators, and registered provider organisations. NDIS income is reported correctly with GST-free supply treatment applied from the start.
GST and BAS for NDIS Providers
Most NDIS supports are GST-free, but you can still claim GST credits on business purchases. We apply the correct treatment to every invoice type so your BAS is right every quarter.
Bookkeeping for NDIS Provider Organisations
Xero bookkeeping with NDIS support category tracking, payroll for support workers, and NDIA payment reconciliation, structured so your audit records are ready when you need them, not scrambled together at year's end.
Payroll, Super, and Workforce Compliance
STP Phase 2 payroll, super contributions, and leave entitlements are managed correctly. Subcontractor arrangements are reviewed against ATO contractor tests before an ABN worker becomes an employment liability.
NDIS Business Structure and Growth Advisory
Sole trader, company, or trust structured correctly from day one. Entity advice, NDIA audit preparation, and profitability planning within NDIS price guide constraints as your provider business grows.
NDIA Audit Preparation and Financial Compliance
Registered providers must pass quality audits to maintain registration. We organise your financial statements, payroll records, and service agreements throughout the year so audit evidence is complete and ready, not assembled under pressure with six weeks' notice.
What Our Clients Say (Real Adelaide Stories)
Is NDIS Income Taxable? GST and Tax Rules for Adelaide Providers
This is the question most new NDIS providers ask first, and the answer is more nuanced than a simple yes or no.
| Tax question | Answer for NDIS providers |
|---|---|
| Is NDIS income taxable? | Yes. All income earned from providing NDIS supports is assessable income included in your tax return, whether you are a sole trader, a company, or a trust. |
| Do I charge GST on NDIS invoices? | Most NDIS supports are GST-free under Subdivision 38-G of the GST Act. You do not charge GST on invoices, but you can still claim GST credits on business purchases — this is called "input taxed" treatment. |
| Do I need to register for GST? | If your total annual turnover from all sources exceeds $75,000, you must register for GST. Even if your NDIS supports are GST-free, turnover still counts toward the threshold. |
| What can NDIS providers claim as deductions? | Vehicle costs (travel to participants), phone and internet (work proportion), professional development, home office for admin, software subscriptions (Xero, NDIS management tools), professional insurance, and any work-related equipment. |
| Are plan management fees taxable? | Yes. Plan management fees are assessable income. They are also GST-free when provided as part of an NDIS plan. Plan management providers must include all plan management income in their tax returns. |
| How is NDIS income different for a company vs sole trader? | The income is assessable in both cases. The tax rate differs — individuals pay up to 45% marginal rate; a company pays 25% (base rate entity). The right structure depends on your income level and whether you have other income. |
Not confident that your previous returns claimed everything correctly? Our Second Look Assessment reviews up to three years of past returns at no upfront cost.

How The Kalculators Work With Adelaide NDIS Providers
NDIS providers are time-poor. Support work does not stop for accounting appointments. Our process is built around remote-first delivery that fits around participant schedules, not business hours.
Flexible Booking Around Your Schedule
Book online at a time that works — morning, evening, or weekend. Your accountant calls you at the chosen time. No travel, no clinic time lost.
Flexible Booking Around Your Schedule
Book online at a time that works — morning, evening, or weekend. Your accountant calls you at the chosen time. No travel, no clinic time lost.
Secure & Simple Document Sharing
We send you a secure document link. Share your income summaries, NDIA remittance advices, bank statements, and payroll records from any device at any time.
Secure & Simple Document Sharing
We send you a secure document link. Share your income summaries, NDIA remittance advices, bank statements, and payroll records from any device at any time.
Expert Preparation with Full Transparency
Your tax return, BAS, or financial statements are prepared by a qualified accountant — not outsourced offshore. You review and approve before anything is lodged.
Expert Preparation with Full Transparency
Your tax return, BAS, or financial statements are prepared by a qualified accountant — not outsourced offshore. You review and approve before anything is lodged.
Year-Round NDIS Support & Guidance
Ongoing access throughout the year. NDIS price guide changes, new support categories, NDIA audit notice, or a question about worker classification — call us when it matters, not just at EOFY.
Year-Round NDIS Support & Guidance
Ongoing access throughout the year. NDIS price guide changes, new support categories, NDIA audit notice, or a question about worker classification — call us when it matters, not just at EOFY.
Why Adelaide NDIS Providers Choose The Kalculators
- IPA Practice of the Year SA & NT 2025 Institute of Public Accountants award for accounting excellence across South Australia
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- Registered Tax Practitioners Board firm returns and BAS lodged by registered tax agents and BAS agents, not admin staff
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- Xero Gold Partner we set up NDIS-specific chart of accounts with support category tracking from day one
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- NDIA audit preparation experience we have prepared financial statements and records for registered provider audits across South Australia
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- GST-free NDIS supply expertise we apply correct GST treatment to every invoice type, preventing BAS errors before they reach the ATO
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- We do not outsource the accountant you speak to is the accountant who prepares your return, BAS, and financial statements
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- 20,000+ clients, $20M+ in deductions claimed annually the scale and experience to know what the ATO and NDIA look for in provider accounts
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Trusted by Thousands Across South Australia

Our Branch Locations
Salisbury Branch
salisbury@thekalculators.com.au
182 Salisbury Highway, Salisbury, SA 5108
Frequently Asked Questions
Book a Consultation With an Adelaide NDIS Accountant
Whether you are setting up your first NDIS provider business and need the structure and GST position sorted correctly from day one, or you are a growing registered provider preparing for an NDIA audit, The Kalculators has the depth and the experience to advise you correctly.
The first consultation is free. If we are not the right fit for your situation, we will tell you and point you in the right direction.
Contact our team today for a no-obligation consultation.



















