Sole Trader vs PAYG Employee: How Tax Deductions Actually Differ in Australia (2026)
PAYG employees and sole traders can sometimes claim the same kind of cost, but the tax logic is different. For the 2025-26 financial year, the key difference is whether the expense is tied to employment duties or to carrying on a business.
A sole trader claims business deductions against business income, while a PAYG employee claims work-related deductions against employment income. Sole traders can claim a wider set of business costs including marketing, business insurance, and home-occupancy expenses where the home is a place of business. PAYG employees claim only costs that directly relate to their employment duties. A sole trader does not lodge a separate business return. Business income and deductions are reported in the individual tax return.
TL;DR
- PAYG employees claim work-related deductions against employment income; sole traders claim business deductions against business income.
- A sole trader does not lodge a separate tax return for the business; business income and deductions go in the individual's return.
- Sole traders can claim a wider set of business costs, including marketing, business insurance, and some home-based business expenses.
- PAYG employees can claim employment expenses only when they paid the cost, were not reimbursed, and the expense directly relates to earning income.
- Dual-income taxpayers need separate records and apportionment for shared costs such as phone, internet, home office, and car use.
What the 2026 Federal Budget changes for both groups
The 2026 Federal Budget (handed down 12 May 2026) is mostly good news for both PAYG employees and sole traders, with some specific implications for dual-income earners.
For PAYG employees: Income tax rate cut from 16% to 15% on the $18,201-$45,000 bracket from 1 July 2026, then to 14% from 1 July 2027. A proposed $1,000 instant tax deduction from 2026-27, claimable without receipts. A proposed $250 Working Australians Tax Offset from 2027-28.
For sole traders: All of the above (the WATO applies to sole-trader business income too), plus the $20,000 instant asset write-off being made permanent from 1 July 2026, and small business CGT concessions retained unchanged.
For dual-income earners specifically: The $1,000 instant deduction is a per-taxpayer measure, not a per-income-stream measure. Most readers of this article have actual work and business expenses well above $1,000, so itemising will still produce a larger claim.
Most of these are proposed legislation. The income tax rate cuts have been legislated. For the full picture, see our 2026 Federal Budget guide.
Deduction categories side by side
| Category | PAYG employee | Sole trader | Shared trap |
|---|---|---|---|
| Income reporting | Salary and wages through employment labels | Business income in individual return. No separate sole-trader return.[1] | Leaving side income out because it feels small |
| General test | Expense must directly relate to earning employment income, paid by you, not reimbursed, with records[2] | Expense must be incurred in carrying on the business and directly related to assessable income[3] | Claiming private or reimbursed costs |
| Car | Work-related car expenses, not ordinary commuting | Business-use car expenses, including business trips from a home-based business[4] | Weak kilometres or logbook records |
| Home | Running expenses. Occupancy usually not claimable for employees.[5] | Running expenses, and occupancy if home area is a place of business[6] | CGT and PSI issues for home-based business |
| Clothing | Eligible uniforms, protective clothing, occupation-specific clothing | Business clothing only if deductible under ordinary principles | Ordinary clothing is usually private |
| Marketing | Rarely employee-deductible | Often business-deductible when linked to earning income | Personal branding vs private image costs |
| Insurance | Income protection can be deductible for salary cover | Public liability, professional indemnity, business cover may be deductible | Mixed policies need splitting |
| Records | Receipts, diaries, logbooks, work-use calculations | Business records, invoices, receipts, GST records if registered | One bank account for everything |
The biggest misconception is that an ABN turns personal costs into business deductions. It does not. The expense still needs the right connection, and private use still needs to be excluded.
What only sole traders can claim
Sole traders can claim tax deductions for most expenses incurred in carrying on a business if the expense is directly related to earning assessable business income.[3] The claim is made in the individual tax return, usually through the business and professional items section, not through a separate company return.[1]
Motor vehicle business use. A sole trader can claim business-use car expenses for trips between business locations, clients, suppliers, the bank, the post office, or a business tax agent where the travel is for business purposes.[4] That does not mean every kilometre is deductible. Private travel and ordinary personal errands stay private. The "full" claim is the full business-use portion, not the full car.
Home occupancy expenses. This is one of the clearest differences. Employees generally cannot claim occupancy expenses such as rent, mortgage interest, council rates, and home insurance.[5] Sole traders may be able to claim occupancy expenses if an area of the home has the character of a place of business, such as being clearly identifiable, not readily suitable for private use, used exclusively or almost exclusively for business, and used for client visits.[6]
Marketing and business development. Advertising, website costs, design, printing, business listings, and promotional costs can be deductible where they are genuinely business costs. A PAYG employee rarely has the same category because the employer is usually the business earning from that marketing.
Business insurance. Sole traders can often claim business-related insurance such as public liability or professional indemnity where it relates to earning business income. Employees may have a separate income protection claim, but not a blanket business insurance category unless they are actually carrying on a business.[7]
The wider sole-trader deduction base comes with wider record obligations. If you are registered for GST and claim input tax credits, income tax deductions are generally claimed net of GST credits.[6]
What only PAYG employees can claim
PAYG employees claim work-related deductions through employee deduction labels, often thought of as the D1 to D5 style categories in individual tax return instructions: car, travel, clothing, self-education, and other work-related expenses.[8]
The employee test is strict. You must have spent the money yourself, not been reimbursed, the expense must directly relate to earning your employment income, and you must have records to prove it.[2] If part of the expense is private, only the work-related portion is deductible.[2]
This creates employee-only patterns. A teacher might claim classroom resources. A nurse might claim eligible protective footwear. A trades employee might claim tools required for duties. A union member can claim union fees connected to employment. These are not "business expenses". They are employee work-related expenses.
Employees also need to avoid business logic. Buying a suit to look professional is not deductible merely because it helps at work. Driving from home to a regular workplace is usually private. Buying a laptop used for both Netflix and work requires apportionment. The employer relationship narrows the claim because the employee is not carrying on the employer's business.
PAYG employees can still have valuable deductions. The mistake is copying sole-trader categories across without the employment connection. For a full list of the most-missed PAYG claims, see our 27 most missed deductions guide.
What both can claim
Some categories can apply to both PAYG employees and sole traders, but the reason for the claim changes.
Self-education. A PAYG employee can claim self-education where it maintains or improves skills or knowledge used in current employment, or is likely to increase income from current employment. A sole trader can claim education where it relates to the current business. In both cases, study to get into a new income-earning activity is generally too early.[9]
Donations. Gifts or donations can be deductible when made to an approved deductible gift recipient and the conditions are met. The ATO says voluntary gifts of money of $2 or more to an approved DGR can be deductible, and receipts are generally needed.[10]
Tax-agent fees. Costs of managing tax affairs can be deductible, including registered tax agent fees, recognised tax advice, and tax software used to prepare and lodge a return.[11] A taxpayer with both PAYG and sole-trader income may have one tax agent invoice, but the record should still explain what was paid and when.
Phone, internet, and home office. Both groups can claim some work or business use, but the calculation differs. Employees choose between ATO working-from-home methods where eligible. Sole traders apply home-based business rules if they run the business from home.[6][12]
Dual income: running both in the same year
Having a salary and a sole-trader business in the same year is common. You might work full-time and freelance at night. You might have a PAYG job and sell services through a platform. You might move from employment to contracting halfway through the year.
The tax return can handle this. The problem is record quality. PAYG income, sole-trader income, employment deductions, business deductions, and shared expenses need to stay separate. The ATO says sole traders declare business income in their individual return and do not lodge a separate business tax return.[1]
Apportioning shared expenses
Shared expenses are where dual-income returns get messy. A mobile plan might support your PAYG job, your sole-trader clients, and private use. The answer is not to claim it twice. Split the usage on a fair and reasonable basis and keep records showing how you calculated each part.
For employees claiming phone or internet, ATO practice guidance accepts itemised bills or representative 4-week records in the right circumstances.[13] For a home-based business, sole traders need records showing the business-use portion of home running expenses, such as electricity, phone, internet, cleaning, and equipment.[6]
A clean approach is to tag each bill with three percentages: employment, business, and private. If that feels too detailed, the claim may be too weak to defend.
Separate logbooks, separate substantiation
Car use also needs separation. A trip to your PAYG workplace is usually private. A trip from home to a client for your sole-trader business may be business travel. A trip from one employment site to another may be employment-related. A trip to the supermarket after a client visit may partly turn private.
Do not use one annual kilometres number without explaining the source. Keep a trip log showing date, start and end points, purpose, and kilometres. Where the logbook method is used by a sole trader, ATO guidance requires a logbook and actual expense records, with fuel and oil supported by actual records or odometer-based estimates.[14]
Separate substantiation also protects you from double-counting. If the same $120 monthly phone bill is used 20% for PAYG work, 30% for sole-trader work, and 50% private, the total deductible share is 50%, not 20% plus 30% plus another home-office claim that already covers the same cost.
When PAYG should consider getting an ABN
You should consider an ABN when you are carrying on a business or enterprise, not because you want employee deductions to look larger. Business.gov.au says not everyone needs an ABN, and to get one you need to be running a business or other enterprise.[15]
Signs you may be moving from hobby or casual activity into business include profit intention, repeated activity, businesslike systems, and a size or scale consistent with business activity.[16] An ABN can help with invoicing, avoiding no-ABN withholding, registering for GST if required, and identifying the business to other parties.[15]
An ABN is not needed merely because you have a PAYG job. It is also not a tax-free threshold. You can earn taxable income from side services without the activity being a full business, depending on the facts.[17] Our side hustle business rules guide walks through the indicators in detail.
The practical test: if you are advertising services, issuing invoices, repeating work, setting prices, keeping business records, and intending to profit, check ABN eligibility. If you occasionally sell old personal items or do a one-off favour, that may be different.
ATO red flags for dual income
Dual-income returns attract attention when the story does not line up. Common red flags include missing platform income, claiming the same expense twice, mixing private and business bank accounts with no notes, claiming home occupancy without a place of business, and treating employee commuting as business travel.
The ATO receives sharing economy data from digital platforms and uses it to help people meet registration, lodgment, reporting, and payment obligations.[18] Online selling data can also be used to identify sellers transitioning from hobby status to being in business.[19]
The goal is not to under-claim. The goal is to claim the right thing in the right place. See our ATO audit triggers article for the compliance patterns that matter.
How Finwell AI handles two income types in one return
Dual-income taxpayers need categorisation before tax time, not after. A receipt should be tagged as PAYG, sole trader, shared, private, or needs review. A car trip should show which income type it supports. A phone bill should ask for work and business percentages, not sit in a generic "expenses" folder.
Finwell AI is built around that separation. It captures itemised transaction data the moment you pay, tags each line against ATO categories, asks you the apportionment question once for shared costs, and maintains a separate live ledger for your PAYG deductions and your business deductions. If you are GST-registered, it tracks GST on every transaction and pre-fills your BAS in real time, not at the end of the quarter.
At tax time, Finwell AI prepares lodgement-ready forms covering both your salary income and your business income, runs a peer desktop review, and surfaces suggestions on what you may want to amend. You press a button to lodge. Your accountant or bookkeeper can sign in to check before you do. Where you authorise it, Finwell AI can represent you to the ATO.
For dual-income earners specifically, the cost saving is real. Most accountants charge a premium for mixed PAYG and business returns because the data work is heavier. Clean, pre-categorised records cut that work down significantly, and your bill usually drops to reflect it.
Finwell AI is a flat monthly subscription, not a percentage of your income. Unlike services that only work if you invoice through their payment rails, Finwell AI works with whatever bank, card, invoicing tool, and POS you already use. You keep your business, your bank, and your customers. The data layer just gets smarter.
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Frequently asked questions
Q: Can I be PAYG and a sole trader in the same year?
Yes. You can earn salary and wages as an employee and also carry on a sole-trader business in the same income year. You generally report the business income and deductions in your individual tax return rather than lodging a separate sole-trader return.[1] Keep the records separate.
Q: Are sole trader deductions better than employee deductions?
They are wider, not automatically better. Sole traders can claim business costs linked to earning assessable business income.[3] PAYG employees claim costs linked to employment duties.[2] In both cases, private expenses, reimbursed costs, and unsupported claims are not made deductible by changing labels.
Q: Do I need an ABN for a side hustle?
You need to consider an ABN if you are running a business or enterprise. Business.gov.au says not everyone needs one, and hobbies are treated differently.[15][16] If your activity is repeated, profit-seeking, organised, and businesslike, check ABN eligibility before invoicing or taking repeat paid work.
Q: Can I claim the same phone bill for PAYG and sole trader work?
You can claim the total work and business portion if the evidence supports it, but you cannot double-count the same cost. Split the bill between PAYG work use, sole-trader business use, and private use. Keep itemised bills, a representative usage diary, or another reasonable calculation basis.
Q: Can sole traders claim rent or mortgage interest?
Sometimes. Sole traders may claim occupancy expenses if the home area has the character of a place of business.[6] That can create capital gains tax issues, and personal services income rules may restrict some claims. Employees generally cannot claim occupancy expenses.[5]
Q: Do dual-income earners need an accountant?
Some do, some do not. For straightforward PAYG plus simple sole-trader income with clean records, Finwell AI prepares lodgement-ready forms and runs a peer desktop review so you can lodge yourself. For complex situations involving GST, multiple business activities, capital gains, or personal services income, an accountant can still add value. Clean, pre-categorised records significantly reduce the accountant's bill because they spend less time on data cleanup.
This article is general information only and not personal tax advice. For your situation, consult a registered tax agent.