About Sales Tax Calculator Tool
Sales tax is a percentage-based tax added to the retail price of goods and services. In the US, sales tax rates vary by state, ranging from 0% (no tax states like Oregon and Montana) to 9.45% or higher (Louisiana, Tennessee).
Sales tax amount = price × (tax rate ÷ 100). Total with tax = price × (1 + tax rate ÷ 100). Example: $200 item at 8.875% tax (NYC) = $200 × 1.08875 = $217.75.
This Sales Tax Calculator works in both directions: add sales tax to a pre-tax price to get the total, or remove sales tax from a tax-inclusive price to find the pre-tax base. Enter any tax rate — works for US state sales tax, Canadian provincial tax, UK VAT, Australian GST, or any custom rate.
Key Features
- Add tax mode: calculates tax amount and total price with tax.
- Remove tax mode: extracts the pre-tax price and tax amount from a tax-inclusive price.
- Works with any tax rate (0%–30%).
- Shows tax amount and total price separately.
- Browser-based — no data sent anywhere.
How to Use the Tool
- Select 'Add Tax' or 'Remove Tax' mode.
- Enter the price amount.
- Enter the tax rate percentage (e.g. 7.5 for 7.5%).
- The tax amount and total/pre-tax price calculate instantly.
Core Benefits
- Verify receipts — check that the tax charged is correct.
- Useful when shopping across state lines in the US where rates differ.
- For businesses: correctly invoice customers with the right tax amount.
Common Use Cases
- Calculating the total price of a US online purchase with state sales tax.
- Verifying the tax amount on a restaurant or hotel bill.
- Invoicing customers in California (7.25% base rate) or New York City (8.875%).
- Calculating UK VAT (20%) or EU VAT on purchases.
- Finding the pre-tax price of a product when only the tax-inclusive price is shown.
Pro Tips
- US states with no sales tax: Oregon, Montana, New Hampshire, Delaware, Alaska (no state tax, but some local taxes apply).
- Highest combined state+local sales tax in the US: Louisiana (~9.55%), Tennessee (~9.55%), Arkansas (~9.47%).
- UK VAT standard rate is 20%. Reduced rate for certain goods (food, children's clothing) is 5% or 0%.
Use this free Sales Tax Calculator to add or remove tax from any price at any rate. Works for US state taxes, UK VAT, EU VAT, Australian GST, and custom rates.