Income Tax Estimator Calculator

How it is calculated

This is a simplified two-bracket model, not a tax return. tax1 = min(income, bracket1_limit) × rate1 ÷ 100 and tax2 = max(income − bracket1_limit, 0) × rate2 ÷ 100. total_tax = tax1 + tax2, effective_rate = total_tax ÷ income × 100 and after_tax_income = income − total_tax. The marginal rate shown is the second rate when income is above the bracket limit, otherwise the first (income exactly at the limit counts as the first bracket). Income is the taxable amount, so deductions must already be subtracted. The tool uses whatever limit and rates you type; it contains no country's actual brackets, credits or social contributions, and these differ by country and year. Negative inputs and rates above 100 % return no result.

Common mistakes

• Entering gross salary when the rules apply to taxable income. Subtract deductions and allowances first, or the estimate will be too high.
• Believing that crossing the bracket limit taxes all income at the higher rate. Only the slice above the limit is taxed at 22% here; the first $44,000 stays at 12%.
• Confusing marginal and effective rate. The marginal rate (22%) applies to your next dollar, while the effective rate (16.82%) is total tax divided by total income.
• Entering rates as decimals (0.12) instead of percentages (12). The tax would be a hundred times too small.
• Using it as a final tax bill. It has two brackets and no credits, so for a real filing use your tax authority's full table for the year.