Business Tax Calculators
Sole Trader Tax Estimator
Tax on business profit plus other income, including the small business offset.
Defaults to 2026–27 rates (1 July 2026 – 30 June 2027) — other years can be selected
Estimated total tax
$18,320
Set aside about $352 a week from business income
Breakdown
- Net business income
- $90,000
- Other income
- $0
- Taxable income
- $90,000
- Tax on taxable income
- $17,520
- Low income tax offset
- − $0
- Small business income tax offset
- − $1,000
- Medicare levy
- $1,800
- Total tax
- $18,320
Estimate only — not personal tax or financial advice. Nothing you enter is stored or sent anywhere.
How It Works
How this is calculated
- 1
Net business income (income less expenses) is added to any other income to find taxable income.
- 2
Individual rates apply. The small business income tax offset (16% of the tax on business income, up to $1,000) is applied if turnover is under $5 million.
- 3
Medicare levy and optional HELP repayments are added. Suggested weekly set-aside spreads the result over the year.
Get Expert Help
Need help with this?
Our accountants can work through your actual figures and lodgement.
More Calculators
Business Tax Calculators
- GST Calculator — Add GSTAdd 10% GST to a GST-exclusive price.
- GST Calculator — Remove GSTFind the GST included in a GST-inclusive price.
- BAS Preparation EstimatorEstimate GST payable, PAYG withholding and instalments for a BAS period.
- Business Income & Expense EstimatorTally income and expenses by category to see your net profit.
Get your actual numbers right
Book a consultation and we'll confirm your position using your real figures — with the fee agreed upfront.