Free Income Tax Calculator - Global Salary & Tax Estimator
Accurately calculate your take-home pay, total tax liability, and effective tax rate. Fully customizable for USA, UK, Canada, Australia, India, and global tax regimes.
⚙️ Configure Tax Brackets
Edit rates below to match your countryHow to Use This Global Tax Calculator
Most tax calculators are "black boxes" locked to a specific year or country. ToolsInstant gives you full control. Follow these steps to get a 100% accurate estimate for your specific region.
Enter Gross Income
Input your total salary before any taxes, insurance, or pension contributions are deducted.
Add Deductions
Enter the standard deduction or sum of itemized deductions relevant to your tax laws (e.g., 401k, HRA, charity).
Configure Brackets
Input the specific tax slabs for your country (e.g., 10% up to $11k). The calculator handles the progressive math instantly.
Marginal Tax Rate vs. Effective Tax Rate
The biggest myth in taxation is that entering a higher tax bracket means you lose money. Understanding the difference between these two rates is crucial for financial literacy.
Marginal Tax Rate
This is the tax rate applied only to the very last dollar you earned. If you enter a 30% bracket, you only pay 30% on the income above that threshold, not your entire salary.
Effective Tax Rate
This is the actual percentage of your total income that goes to the government. It is an average of all the different rates you paid across various brackets.
The "Tax Cliff" Myth
Earning $1 more will never result in less take-home pay in a progressive tax system. You simply pay a higher rate on that extra $1.
How Different Countries Tax Income
🇺🇸 USA (IRS)
Progressive- Federal brackets (10% to 37%)
- Standard Deduction available
- State taxes vary (0% to 13%+)
- FICA taxes are separate
🇬🇧 UK (HMRC)
Progressive- Personal Allowance (0% tax)
- Basic Rate (20%)
- Higher Rate (40%)
- National Insurance is separate
🇮🇳 India (IT Dept)
Dual Regime- Old Regime (High deductions)
- New Regime (Lower rates, no deductions)
- Surcharge for high earners
- Cess applied on total tax
Understanding Tax Deductions & Credits
A flat amount that the tax system allows you to deduct from your income, no questions asked. Useful if you don't have complex expenses.
Specific expenses you list individually, such as mortgage interest, medical bills, or charitable donations. Requires proof/receipts.
Different from deductions. Credits reduce your tax bill dollar-for-dollar, whereas deductions only reduce the income subject to tax.
3 Strategies to Lower Your Taxable Income
Retirement Contributions
Contributing to 401(k), 403(b), or Traditional IRA accounts (or equivalents like EPF/PPF) often reduces taxable income immediately.
Health Savings (HSA/FSA)
Funds put into Health Savings Accounts are typically 100% tax-deductible and grow tax-free if used for medical expenses.
Business Expenses
If you are a freelancer or contractor, ensure you deduct all valid business costs like equipment, software, and home office usage.
Why ToolsInstant is the Best Tax Calculator
100% Private
Calculations happen in your browser. No financial data is sent to our servers.
Fully Customizable
Unlike others, we don't hardcode old tax laws. You set the brackets for accurate results.
Mobile Ready
Calculate your taxes on the go with our responsive, lightweight design.