Small business guide

Tax for Small Business Owners Australia

Q: What should a small business owner check first for tax?

The first checkpoints are usually business structure, GST registration, BAS obligations, PAYG and super for workers, and how asset purchases are treated for tax.

Q: Can small businesses always use the instant asset write-off in 2025-26?

No. The ATO notes a proposed extension for the 2025-26 income year was not yet law as at its 4 September 2025 update, so business owners should check current law and eligibility before assuming the write-off is available.

Q: Does the owner pay themselves wages in every structure?

No. Whether an owner can be paid wages, or deduct amounts taken from the business, depends heavily on the business structure. Sole traders and partners cannot generally deduct drawings to themselves as wages.

This page is for owners who need a practical tax checklist across structure, GST, BAS, payroll, and business asset decisions before drilling into calculators and detailed articles.

Quick answer: most small-business tax mistakes come from structure confusion and compliance drift, not from rate calculations. The first job is to know which structure you are operating through, whether GST and BAS obligations have started, whether you have employer obligations, and whether a planned asset purchase is actually deductible under current law.

Owner checklist

Structure: sole trader, partnership, company, and trust each have different tax and super consequences.
GST: registration is generally required once annual turnover reaches $75,000 or more, with some specific industry exceptions.
BAS and PAYG: GST registration, PAYG withholding, and PAYG instalments can all create BAS obligations.
Workers and super: if you hire employees or certain contractors, super and payroll compliance can start quickly.
Asset purchases: check current law before assuming an instant write-off or immediate deduction is available.

Current caution on instant asset write-off

The ATO page updated on 4 September 2025 says the proposed extension of the $20,000 instant asset write-off for the 2025-26 income year was not yet law at that date. That means this page does not assume the measure is available for 2025-26 without checking current law first.

Start with these calculators

BAS calculator

Estimate GST, PAYG withholding, and instalments for business reporting.

GST calculator

Move quickly between GST-inclusive and GST-exclusive pricing.

Company tax calculator

Check company tax outcomes when the business operates through a company.

Depreciation calculator

Model asset treatment where immediate deduction is not available.

Small business owner tax FAQs

What should a small business owner check first for tax?

Usually structure, GST, BAS, worker obligations, and asset treatment. Those choices drive most downstream tax and compliance outcomes.

Can small businesses always use the instant asset write-off in 2025-26?

No. The ATO's published guidance needs to be checked for the current law position before relying on it for 2025-26.

Does the owner pay themselves wages in every structure?

No. Owner payment treatment depends heavily on the structure. Sole trader drawings are not the same as wages.

Tax Accuracy & Sources

Reviewed: March 2026 · Tax year: 2025-26

This page is a cross-structure checklist, not personalised tax advice. The right answer depends heavily on whether the business operates as a sole trader, partnership, company, or trust, and on the current law for any proposed business concessions.

Last reviewed: March 2026 Uses 2025-26 ATO rates.