US Sales Tax Calculator 2021
Calculate sales tax for all 50 states with state, county, and local tax rates
🛍️ Purchase Information
📦 Shipping
💰 Total Summary
Enter purchase details and calculate to see total
Detailed Calculation Breakdown
2021 State Sales Tax Rates
Note: Total sales tax includes state + county + city + special district taxes. The rates shown below are state-level base rates only.
No Sales Tax States
- • Alaska (0%)
- • Delaware (0%)
- • Montana (0%)
- • New Hampshire (0%)
- • Oregon (0%)
Highest Tax States
- • California (7.25%)
- • Indiana (7.00%)
- • Mississippi (7.00%)
- • Rhode Island (7.00%)
- • Tennessee (7.00%)
Popular States
- • Texas (6.25%)
- • Florida (6.00%)
- • New York (4.00%)
- • Illinois (6.25%)
- • Pennsylvania (6.00%)
How US Sales Tax Works
📍 Location-Based Taxation
Sales tax in the US is determined by state, county, city, and special district. This means the same item can have different total tax rates depending on where it's purchased.
🧮 How Tax is Calculated
Tax is applied to the purchase price after discounts but typically before shipping (unless shipping is taxable in that location).
Tax = (Product Price × Quantity - Discount + Taxable Shipping) × Tax Rate
📦 Shipping Taxability
Whether shipping is taxable varies by state. Some states always tax shipping, some never do, and some tax it only if the item being shipped is taxable.
🏪 Destination vs Origin
Most states use destination-based tax (where the buyer is located), but some use origin-based tax (where the seller is located).
Disclaimer: This calculator provides estimates based on standard state sales tax rates for 2021. Actual sales tax rates may vary by county, city, and special taxing districts. Some items may be exempt from sales tax. For precise tax calculations, consult your local tax authority or a tax professional.