Personal Services Business Determination Explained

If you’re a contractor in Sydney’s Inner West, the Northern Beaches, or anywhere else in Australia, you’ve probably had this moment. One client makes up most of your income, you invoice through an ABN or company, and then tax time lands with a PSI question you weren’t expecting.

That’s where a personal services business determination starts to matter. It can affect whether the PSI rules apply, whether income stays in your entity or gets attributed to you personally, and whether some deductions are restricted. For tradies, consultants, IT contractors, designers, and other owner-operators, this isn’t just technical tax wording. It goes straight to risk, recordkeeping, and how you lodge with the ATO.

A lot of guides stop at “check the 80% rule” and leave it there. That’s where people get stuck. The issue is knowing when you can self-assess as a personal services business, when you can’t, and when a Commissioner-issued determination becomes the statutory backstop.

Introduction: Why This Determination Matters for Contractors

A chippy in Marrickville does nearly all his work for one builder this year. An IT contractor in the CBD bills a single bank through a company. On the ground, both look and feel like business owners. For PSI purposes, that does not answer the tax question.

What matters is the next step in the statutory process. If your income is mainly from your own labour or skill, you first check whether you can self-assess as a personal services business. If that pathway is blocked, or the facts sit in a grey area, a personal services business determination becomes the legal backstop.

That is the part many contractors miss.

A lot of guides stop at the 80% rule, as if crossing that line settles everything. It does not. The dividing line is this. If 80% or more of your PSI comes from one client and its associates, self-assessment options narrow sharply. If you are under that threshold, or you satisfy the results test, you may be able to self-assess without asking the Commissioner for a determination. Getting that boundary wrong can push you into the wrong tax treatment and the wrong records.

The ATO describes a personal services business determination as a formal notice from the Commissioner that the PSI rules do not apply for the relevant income year. Its current guidance also shows a 2026 myTax question asking whether a PSBD was in force for the whole period PSI was earned in the ATO guidance on personal services income business determinations. That continuity check matters. A determination that starts late, ends early, or does not cover the full earning period can create lodgment problems people do not see coming.

Contractors usually get caught by ordinary paperwork, not exotic tax law. The contract says hourly labour. The invoices show time, not a result. No one keeps clear evidence about who supplied materials, who fixed defects at their own cost, or how new clients were won. By the time tax time arrives, the story in your head and the documents in your file do not match.

The practical move is simple. Check your position before year-end, and before you sign the next contract. That gives you time to tighten the facts, fix the wording, and work out whether you are dealing with self-assessment or a Commissioner determination.

Understanding Personal Services Income and Business Status

A chippy in Marrickville can have an ABN, invoice through a company, carry tools, and still earn income that counts as PSI. That is where many contractors get tripped up. The tax law starts by asking what the client is really paying for.

If the payment is mainly for your personal effort, skill, or expertise, you are in PSI territory. From there, the question is whether you are also a personal services business, because PSB status is what keeps the PSI rules from applying.

A good way to read this is to separate the job from the vehicle. Your company, trust, or sole trader setup is the vehicle. The work itself is the job. PSI rules focus on the job first. If the income mainly comes from what you personally do, the structure alone does not settle the outcome.

The legal starting point sits in section 87-15 of the Income Tax Assessment Act 1997. It recognises two ways to be a personal services business for PSI purposes. You either meet at least one of the statutory PSB tests for the year, or you have a PSB determination in force.

That distinction matters because a determination is not the first stop. It is the statutory backstop when self-assessment does not get you there.

PSI versus PSB. The boundary contractors miss

Many tradies and contractors mix up three different ideas. PSI is a type of income. PSB status is an exception to the PSI rules. A PSB determination is the Commissioner’s formal notice that the PSI rules do not apply for the relevant period.

That is why “I run a business” is only part of the story. You may run a genuine business in the everyday sense and still need to test whether the PSI rules apply to income earned from your own labour. Our plain-English personal services income guide for Australian contractors walks through that starting point if you want the broader picture.

A practical example helps. If an electrician is paid because the client wants that electrician’s own hands-on skill, the income may be PSI. If the same electrician also satisfies a PSB test, or has a determination in force, the PSI rules do not bite. Same worker, same ABN, different tax result.

The 80% rule and results test are not the same gate

This is one of the biggest points of confusion.

Contractors often hear about the results test and assume that is the whole answer. It is not. The 80% rule is a separate threshold that affects whether you can self-assess using some of the PSB tests. The results test sits on its own footing. If you meet it, you may self-assess even where your income is concentrated. If you do not meet it and 80% or more of your PSI comes from one client and its associates, self-assessment becomes much narrower, and a determination may be the only path left.

Put simply, the 80% rule asks how concentrated your PSI is. The results test asks how the work is performed and paid for. One looks at where the income comes from. The other looks at the substance of the contract and the working arrangement.

That boundary is where the determination becomes the backstop. It is there for cases where the facts do not let you self-assess into PSB status, but the wider circumstances still support a business outcome under the law.

Why business status is really an evidence question

For many Inner West contractors, the problem is not the label on the invoice. It is the file behind it.

If your contract says labour hire, your timesheets show hourly billing, and there is nothing on file about rectifying defects at your own cost, you will struggle to prove a PSB position that depends on business-style risk and independence. On the other hand, clear quotes, scope documents, insurance records, tool ownership, and evidence of winning work from separate clients can support the right treatment.

The law gives you the framework. Your documents have to tell the same story.

One more point often missed is continuity. If a PSB determination only covers part of the period in which PSI was earned, that can create trouble at lodgment time, including the 2026 myTax check about whether a determination was in force for the whole relevant period. That is why getting the status right is not only about eligibility. It is also about coverage for the income year.

The Four PSB Tests Every Contractor Must Know

A lot of contractors treat the four PSB tests like a menu. Tick one box and you are done. In practice, they work more like four separate gates. You need clear facts for at least one gate, and the gate that matters most depends on how your income is earned and how concentrated it is.

Results test

Contractors in the trades often look here first. That makes sense, because this test focuses on how the job is done, not how many clients you have.

The test asks whether your PSI mainly comes from work where you are paid for a result, use your own tools or equipment where the job requires them, and fix defects at your own cost. All three features need to line up across most of the relevant PSI. If one piece is missing, the test usually fails.

A simple way to read it is this. A true result looks like quoting to install a switchboard, supplying the gear needed to do it, and returning on your own time if the work is faulty. By contrast, hourly labour under close direction looks more like a worker selling time than a business selling an outcome.

Results test checklist

Paid for a specific result.
Supplies tools or equipment where relevant.
Fixes defects at own cost.
Meets all of that for most of the relevant PSI.

Unrelated clients test

This test is about market exposure. Are you winning work from separate, unrelated clients because you hold yourself out to the public, or are you mainly relying on private referrals and repeat work from one source?

For many Inner West contractors, the difference is in the paper trail. A website, tender submissions, signage, public ads, or listings can help show that you offer your services to the market. Two invoices to different clients, by themselves, do not always prove the point.

That catches people out. A second client picked up through a mate at the pub may still leave the public offer element looking weak.

Employment test

This test asks whether other people materially help produce the principal work that earns the PSI. Admin support does not usually carry much weight here. The focus is on the hands-on work that delivers the job.

For tradies, that might be an apprentice on the tools, or a subcontractor doing a real part of the installation, fit-out, or repair work. If others are only doing bookkeeping, scheduling, or picking up supplies, that usually does not move the needle much.

The key question is practical. Could you show that other workers contributed to the income-producing work itself, not just to running the business around it?

Business premises test

This is the hardest one for many contractors to satisfy. A home office or a corner of the lounge room usually will not do the job.

The premises need to look and function like real business premises. They should be used mainly for the business, separate from your private home, and separate from your clients’ locations. A leased workshop, studio, or office can fit. A laptop on the kitchen bench usually cannot.

This test often helps contractors with a workshop, storage yard, or dedicated office that is part of how they earn income.

How these tests fit together

Each test looks at business status from a different angle. The results test looks at contract substance. The unrelated clients test looks at market activity. The employment test looks at who performs the income-producing work. The business premises test looks at whether you operate from a genuine business base.

That is why PSB status is not a vibe or a label. It is a legal conclusion built from evidence.

One more point matters here. Passing one of these tests can support self-assessment, but only if the rules let you use that pathway. For contractors with income heavily tied to one client, the results test often becomes the only self-assessment option left. If that test does not fit the facts, the determination process becomes the statutory backstop.

Self Assessment Versus Seeking a Determination

A common contractor scenario goes like this. You invoice through your company, one client makes up nearly all of the year’s income, and you assume passing one of the PSB tests will sort it out. Sometimes it will not.

The key question is not just whether a test could fit. The key question is whether the law still lets you self-assess.

The 80% rule is the gate, not the whole answer

If 80% or more of your PSI comes from one client and its associates, your self-assessment options narrow sharply. At that point, the unrelated clients, employment, and business premises tests usually drop out. In practical terms, the results test may be the only self-assessment path left.

That is why the 80% rule and the results test should be read together, not separately. The 80% rule does not automatically mean you fail PSB status. It tells you which doors are still open.

For many contractors, this is the line that causes confusion. They hear, “I passed a test,” but miss the earlier question, “Were you allowed to use that test in the first place?” The statutory backstop, if self-assessment is not available or the facts are too fine to call safely, is a personal services business determination.

Self Assessment or PSB Determination Decision Matrix

What a determination actually does

A PSB determination is a formal decision by the Commissioner that the PSI rules do not apply for the relevant income year. The ATO sets out that process on its personal services income business determination page.

That matters because a determination is not a second opinion for curiosity's sake. It is there for limited cases where self-assessment does not get you home.

A useful way to view it is this. Self-assessment is like checking whether your ute fits through the height bar before entering a car park. If the bar says no, you do not squeeze through and hope for the best. You use the proper alternate entry. In PSI terms, that alternate path is the determination process.

Why careful contractors should document the decision

This area also has a practical tax return angle that many summaries skip. From the 2026 income year, the ATO's myTax instructions continue to ask whether you received PSI and whether you were conducting a personal services business. That means your return position needs to match the path you used, whether that was self-assessment or a determination.

So keep a file that shows your reasoning. Record client concentration, contract terms, how you were paid, who did the income-producing work, and why the results test did or did not fit. If the facts are borderline, getting advice on a private ruling application for tax uncertainty can help you sort out whether a formal ATO process is the safer option.

The short version is simple. If self-assessment works, use it carefully. If the 80% rule blocks your test options and the results test does not clearly fit, a determination is the legal backstop.

How to Apply for a Determination and Stay Compliant

A common contractor problem looks like this. You win steady work from one large client, the invoices keep flowing, and only near tax time do you realise self-assessment may not carry you over the line. That is where the determination process matters. It is the statutory backstop when the 80% rule limits your options and the results test does not clearly fit your facts.

What a determination is

A determination is the formal path for asking the ATO to treat your PSI as coming from a personal services business in circumstances set by the law. For many contractors, the key point is timing. If the 80% rule is in play, a late application can create a real problem because the determination needs to cover the period when the PSI was earned.

Put simply, self-assessment is your front gate. A determination is the side gate the legislation gives you when that front gate is shut.

Apply with facts, not labels

The strongest applications read like a job file, not a sales pitch. The ATO is looking for evidence of how you earned the income, who bore the commercial risk, what your contracts required, and whether your working arrangements matched the test you are relying on.

Before you apply, gather documents such as:

• Contracts and scopes of work: These help show whether you were paid to produce a result or to provide labour over time.
• Invoices by client: These show client concentration clearly, which matters when one customer dominates the year.
• Tool and equipment records: Keep purchase invoices, lease documents, and site records showing what you supplied yourself.
• Defect rectification evidence: Save emails, variations, warranty terms, and rework records if you fixed mistakes at your own cost.
• Marketing and public offer material: Retain tender submissions, website pages, directory listings, and ad records if they reflect how you sought work.
• Business systems records: Job management notes, insurances, subcontractor records, and separate premises documents can help show the wider business picture.

Good records do two jobs at once. They support the application, and they support the tax return position you take later. If your files need tightening up, this record-keeping requirements guide for Australian businesses is a practical place to start.

Match the determination to your return

One issue many guides miss is continuity. From the 2026 income year, the myTax process continues to ask questions about PSI and whether you were conducting a personal services business. If your position depends on a determination, your return needs to line up with the period the determination was in force.

That means you should not treat the application as a document to sort out after year end if the risk was obvious earlier. Review the position when a major contract is signed, revisit it if one client starts taking most of your billings, and check it again before lodging.

Keep the administration tidy as well. Payment records, notices, and tax receipts should be easy to find if the ATO asks questions later. For payment support, this guide on proving tax payment receipt is a useful companion to your broader file.

One practical option in this area is EndureGo Tax, which provides tax, bookkeeping, BAS, private ruling support, and ATO audit assistance for individuals and small businesses.

Real World Examples for Contractors and Tradies

A lot of contractors only realise PSI is a problem after one client ends up dominating the year. By then, the question is no longer “am I running through a company or trust?” It is whether you could self-assess at all, or whether a PSB determination was the statutory backstop you should have dealt with earlier.

Example one, IT contractor with one major client

An IT contractor provides services through a company and almost all of the year's income comes from one bank. That setup often causes confusion. The company does not decide the PSI issue. The facts do.

Once one client supplies most of the income, the 80% rule becomes the first gate. If that threshold is crossed, self-assessment usually narrows sharply. In practice, the contractor is often left asking whether the results test can still be satisfied. If not, a PSB determination may be the only path left to argue that the PSI rules should not apply.

Say the contract pays a daily rate, the bank provides the laptop and systems, and the contractor is expected to turn up and do the work. If defects are fixed on the bank's time and at the bank's cost, the arrangement starts to look more like skilled labour than an independent business job quoted for a result. That is the line many contractors miss.

The results test works a bit like a strict gate. You need payment for producing a result, not just for hours or days. You usually also need to supply the tools or equipment needed for the work, and you carry the cost of fixing defects. Miss those features, and the position weakens quickly.

If the PSI rules apply, the outcome can include attribution of income to the individual and limits on certain deductions. It can also invite closer attention to whether the tax return treatment matched the contract terms.

Example two, electrician with several clients and visible business activity

Now compare that with an electrician who works across multiple unrelated builders, strata jobs, and direct household clients over the year. Leads come from signage, referrals, online enquiries, and repeat customers. The electrician quotes jobs, carries business insurance, supplies tools and materials, and uses separate business premises for storage and admin.

That pattern looks more like a genuine trade business operating in the market. The key point is not that the electrician is “busy”. The key point is that the electrician is exposed to the market, wins work from different sources, and operates with the usual features of a business rather than relying mainly on one payer.

In that kind of case, self-assessment may be available under one of the PSB tests, assuming the paperwork supports the reality. The quotes, invoices, booking records, premises costs, and client list all help show the broader picture.

Small admin habits can help here too. A documented booking trail or a contractor answering service can make it easier to show that work came from the market, not just from one labour-hire style arrangement.

Why these examples matter

These examples show the boundary clearly. The 80% rule is not the same thing as the results test. One tells you whether self-assessment options are restricted. The other asks whether the way you are paid and the way you work meet a specific legal standard.

That is why a PSB determination matters. It is the backstop when self-assessment does not fit the year you had.

One more practical point. From the 2026 income year, myTax still asks PSI and PSB questions, so the position you take in the return needs to match the contract pattern, client mix, and any determination that applied for that period. For contractors and tradies, the safest habit is to check the PSI position when a major client starts taking most of the work, not after lodging season arrives.

Frequently Asked Questions and Next Steps with EndureGo Tax

A common problem looks like this. You finish the year, one builder has supplied most of your work, and you are staring at the PSI questions in myTax. You cannot safely self-assess under the usual tests, but that does not automatically mean the same answer applies forever. A PSB determination is the statutory backstop for that year when self-assessment does not get you to a clear result.

Can a PSB determination fix prior years after an ATO review?

Usually, no.

If the ATO has already finished a review or audit and issued its decision, that decision generally stays in place, as set out in the ATO compliance focus on personal services income. A determination is better treated as a forward-looking tool for the income year in question, not a reset button for old disputes.

How long does a personal services business determination last?

It applies to the income year covered by the determination.

That matters because PSI works year by year. A contractor who had one dominant client this year may have four unrelated clients next year. The legal answer can change with the facts, so check it again when your contracts or client mix shift.

What if I fail the 80% rule?

The 80% rule and the results test do different jobs.

The 80% rule limits whether you can self-assess under some of the PSB tests. It does not decide, by itself, that you are a personal services business or that you are not. If 80% or more of your PSI comes from one source, self-assessment usually narrows to the results test. If that test does not fit the way you were engaged and paid, a PSB determination may be the correct next step.

That boundary causes a lot of confusion.

What does the Commissioner look at in a determination application?

The Commissioner looks at the actual working arrangement, not labels in the contract.

For a tradie or contractor, that usually means showing how the year really operated. Who engaged you. How concentrated the income was. Whether there were business-like features that were real and consistent with the records. Broad claims such as "I run my own business" carry little weight without documents behind them.

What should I check before lodging my return?

Start with three things. Your contracts, an invoice summary by client, and records that show how the work was done, such as tools, rectification or defect responsibility, and any premises costs.

Then check whether your tax return position matches that evidence. From the 2026 income year, myTax still asks PSI and PSB questions, so a continuity check matters. If the return says one thing but the contracts and client mix show another, you are inviting ATO questions later.

When should I get advice?

Get advice when one client starts taking most of the year, when a labour-hire style arrangement replaces market-based jobs, or when you are unsure whether the results test fits.

That is the point where a short review can save a long argument later.

If you're unsure whether the PSI rules apply or whether you need a personal services business determination, EndureGo Tax can help you review the facts, prepare supporting records, and deal with ATO questions before they become a larger compliance issue. If you want CPA-qualified support with PSI reviews, private rulings, BAS, or audit assistance in Ashfield, Belrose, or Adelaide, visit EndureGo Tax.