Tax Deductions for Small Business Australia: What You Can (and Can’t) Claim in 2026

Understanding which tax deductions for small business Australia allows can meaningfully reduce what you pay at tax time. Yet many small business owners either miss deductions they are entitled to, or claim expenses incorrectly and trigger an ATO audit.

At Verus Accountants, our chartered accountants help Sydney businesses maximise their legitimate deductions every year. Here is a practical, up-to-date guide to small business tax deductions in Australia for the 2025-26 financial year.

The Golden Rule: What Makes an Expense Tax Deductible?

For an expense to qualify as a tax deduction, it must be:

• Incurred in producing assessable income
• Not private, domestic or capital in nature
• Supported by appropriate records (receipts, invoices, bank statements)

Keep in mind that mixed-use expenses (those that are partly business and partly personal) must be apportioned. Only the business portion is deductible.

Common Tax Deductions for Small Business in Australia

Expense Category	Examples	Notes
Operating expenses	Rent, utilities, phone, internet	Must apportion if used personally
Employee costs	Wages, super, workers compensation	Super must be paid on time to be deductible
Marketing and advertising	Website, Google Ads, print, social media	Generally fully deductible
Professional fees	Accounting, legal, bookkeeping	Fully deductible if related to business income
Vehicle expenses	Fuel, registration, insurance, maintenance	Must use logbook method or cents-per-km (>5,000km)
Home office	Electricity, internet, depreciation	ATO fixed rate: 70 cents per hour (2025-26)
Asset depreciation	Equipment, computers, machinery	Subject to instant asset write-off rules
Travel expenses	Flights, accommodation for business travel	Must be for business purpose; keep diary for 6+ nights
Training and education	Courses, conferences, subscriptions	Must be directly related to current employment/income
Bank fees and interest	Business loan interest, merchant fees	Must relate to business finance only

Instant Asset Write-Off in Australia 2026

The instant asset write-off allows eligible small businesses to immediately deduct the full cost of assets used for taxable purposes, rather than depreciating them over time. For the 2025-26 financial year, the threshold stands at $20,000 per asset for businesses with aggregated turnover under $10 million.

Always confirm the current threshold with your accountant before making a purchase decision. The instant asset write-off has changed multiple times in recent years and specific conditions apply.

Home Office Deduction: What You Can Claim

If you work from home, you can claim home office tax deductions in Australia using the ATO’s fixed rate method. For 2025-26, this is 70 cents per hour worked from home, covering electricity, internet and phone. You do not need a dedicated work room, but you must keep records of your hours.

Alternatively, the actual cost method allows you to claim a proportional share of rent, mortgage interest, utilities and depreciation based on the floor area used. This requires more detailed record keeping but can yield a higher deduction for home-based businesses.

For sole traders in particular, getting your bookkeeping and payroll records in order throughout the year is what makes maximising these deductions possible come tax time.

What the ATO Looks for in Small Business Claims

The ATO uses data matching to identify claims that appear inconsistent with reported income. Common areas of scrutiny include:

• Vehicle expenses without a logbook
• Excessive or unsubstantiated travel claims
• Home office claims that exceed the floor area used
• Mixed personal/business expenses claimed in full
• Entertainment expenses (meals, functions) without proper records

To structure your business in the most tax-effective way, speak with our business advisory team. The right structure can determine which deductions are available and how profits are taxed.

Frequently Asked Questions

What tax deductions can a small business claim in Australia?

Small businesses can claim deductions for operating expenses, employee costs, vehicle expenses, marketing, professional fees, home office costs, training, travel and eligible asset purchases. The expense must be incurred in earning assessable income and properly documented.

Are accounting and bookkeeping fees tax deductible?

Yes. Fees paid to a registered tax agent or bookkeeper for business-related services are fully deductible as a business expense.

Can I claim my home office expenses as a small business?

Yes. You can use the ATO’s fixed rate method (70 cents per hour for 2025-26) or the actual cost method. You do not need a dedicated home office to claim, but you must keep accurate records of hours worked from home.

What is the instant asset write-off threshold in 2026?

For 2025-26, the instant asset write-off threshold is $20,000 per asset for eligible small businesses with aggregated turnover under $10 million. Assets must be first used or installed ready for use in the financial year.

Can I claim vehicle expenses for my small business?

Yes, provided the vehicle is used for business purposes. You can use the logbook method (which requires a 12-week logbook) or the cents-per-kilometre method for up to 5,000 business kilometres per year.

Are meals and entertainment deductible for a small business?

This is one of the more complex areas. Business meals where FBT applies may not be deductible. Client entertainment has very specific rules. Always document the purpose of any meal or function and seek advice from your accountant.

What records do I need to keep for tax deductions?

You must keep receipts, invoices, bank statements and other records for at least five years. For vehicle expenses, you may also need a logbook. For home office, you need a record of hours worked.