Tax Calculator

A sales tax calculator is an online tool that helps you calculate sales tax on purchases, determine final prices including tax, or reverse-calculate pre-tax prices from tax-inclusive amounts. Whether you're shopping online, creating invoices, comparing prices across tax jurisdictions, or budgeting for purchases, our tax calculator handles both adding and removing tax with instant, accurate results.

This calculator works bidirectionally: enter a pre-tax amount and tax rate to see tax amount and final price, or enter a tax-inclusive price to calculate the original pre-tax amount and tax paid. It supports any tax rate including sales tax, VAT, GST, or service taxes, helping you understand the true cost of purchases or pricing for sales.

Accurate tax calculations are essential for budgeting, pricing, and financial planning. Shoppers need to know final out-of-pocket costs including tax when budgeting purchases or comparing prices between jurisdictions with different tax rates. Online shoppers benefit from calculating total costs before checkout to avoid surprises, especially when tax isn't displayed until the final step.

Business owners use tax calculators to set competitive retail prices, calculate tax owed on sales, prepare invoices with proper tax breakdowns, and reconcile tax payments. Accountants and bookkeepers benefit from quick tax calculations when processing transactions, preparing tax reports, or verifying point-of-sale systems. Travelers use it to understand pricing in locations with different tax structures (VAT in Europe vs. sales tax in the US).

The tool ensures accuracy using precise percentage calculations, handles both forward (add tax) and reverse (remove tax) calculations, and works with any tax rate. It's particularly valuable when budgeting major purchases, comparing prices across jurisdictions, verifying receipts, setting retail prices, or understanding tax-inclusive vs. tax-exclusive pricing systems.

Purchase Planning: Calculate final costs including tax when budgeting for major purchases to ensure you have sufficient funds.

Price Comparison: Compare prices from different locations or online stores by accounting for varying tax rates to find true best price.

Business Pricing: Calculate tax to add to products or services when setting retail prices or preparing customer invoices.

Receipt Verification: Reverse-calculate to verify the pre-tax amount and tax charged on receipts match the stated tax rate.

Tax Planning: Estimate sales tax liability for businesses by calculating tax on projected or actual sales amounts.

Using our tax calculator is straightforward: enter the price amount and tax rate percentage. For adding tax, enter the pre-tax price to see tax amount and total with tax. For removing tax, enter the tax-inclusive price to see the original pre-tax amount and tax paid. Switch between modes using the calculator options.

For adding tax: Tax Amount = Price × (Tax Rate / 100), Total = Price + Tax Amount. For removing tax: Pre-tax Price = Total / (1 + Tax Rate / 100), Tax Amount = Total - Pre-tax Price. For example, with 8% tax: A $100 item becomes $108 total ($8 tax). Reverse: a $108 total contains $100 pre-tax price and $8 tax. Common US sales tax rates range from 0% (no sales tax states) to 10%+, VAT in Europe ranges from 15-27%. All calculations are performed locally in your browser for privacy.