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Calculate income tax, estimate refunds, and determine salary deductions instantly. Our free tax calculator supports income tax, GST, VAT, sales tax, and capital gains calculations for 9+ countries. Get accurate tax breakdowns with real tax brackets from official sources.
Select Country: Choose from 9+ countries with real tax brackets and rates.
Enter Salary: Input your annual gross salary in local currency.
Custom Rate (Optional): Override with your own tax rate if needed.
Get Results: View comprehensive tax breakdown and net salary.
Income & Salary Calculations: Calculate tax on income and salary, estimate paycheck deductions, weekly/monthly/annual calculations.
Capital Gains & Investment: Capital gains tax calculations, dividend income tax estimates, retirement income tax planning.
Property & Assets: Property tax calculations, rental income tax estimates, vehicle taxes.
Business & Self-Employment: Business tax calculations, 1099 contractor tax calculations, self-employment tax estimates.
Our calculator is developed by FastTools' financial technology team with expertise in tax law, accounting principles, and international tax regulations. The tool uses current tax brackets and rates from official sources including IRS (Internal Revenue Service), HMRC (Her Majesty's Revenue and Customs), CRA (Canada Revenue Agency), ATO (Australian Taxation Office), and other national tax authorities.
Reviewed by: FastTools Tax Team | Certified Tax Professionals
Expertise: 15+ years combined experience in tax preparation, accounting, and financial planning
Last Updated: January 2025 | Tax rates and brackets verified against official 2024-2025 tax year regulations.
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Tax = Σ(Bracket Income × Bracket Rate)
Each tax bracket is calculated separately, then summed for total tax. This formula ensures fair taxation across income levels with accurate brackets from official tax authorities.
Effective Rate = (Total Tax ÷ Gross Income) × 100
The average tax rate across all income levels, showing your overall tax burden as a percentage. This helps you understand your true tax rate compared to your marginal rate.
Marginal Rate = Tax Rate of Highest Bracket
The tax rate on the next dollar earned, important for financial planning and investment decisions. Understanding your marginal rate helps optimize income timing and deductions.
IRS (Internal Revenue Service) administers federal income tax, Social Security, and Medicare. Our US tax calculator uses current IRS tax brackets, standard deductions, and tax rates for accurate federal tax calculations.
HMRC (Her Majesty's Revenue and Customs) manages UK income tax and National Insurance. Our UK tax calculator incorporates HMRC tax bands, personal allowances, and National Insurance rates.
CRA (Canada Revenue Agency) oversees federal and provincial taxes. Our Canada tax calculator uses CRA tax brackets plus provincial rates for comprehensive Canadian tax calculations.
ATO (Australian Taxation Office) administers income tax and GST. Our Australia tax calculator uses ATO tax brackets, Medicare levy rates, and current tax thresholds.