Sales tax changes the final price you pay at checkout. A product may cost $100 before tax, but the final total depends on the state, province, city, or product category.
Use the Sales Tax Calculator to estimate tax and total price for US states and Canadian provinces.
Sales tax formula
Sales tax amount = pre-tax price x sales tax rate. Total price = pre-tax price + sales tax amount.
US sales tax
In the United States, sales tax often depends on state and local rules. Some states have no statewide sales tax, while others combine state, county, and city rates.
Canada sales tax
In Canada, shoppers may see GST, PST, HST, or QST depending on the province. Some provinces combine taxes into a harmonized rate, while others list them separately.
Discounts and sales tax
If an item is discounted, sales tax is often calculated on the discounted price. Use the Percentage Calculator first to find the sale price, then calculate tax.