Calculate final price with any sales tax rate, or reverse-calculate from tax-inclusive price.
Unlike VAT, sales tax in places like the United States is typically added only at the final point of sale to the consumer, and rates vary significantly not just by state but often by city and county too. This calculator lets you quickly add sales tax to a pre-tax price, or work backward from a tax-inclusive total to see what the original price and tax amount were.
Why do sales tax rates vary so much by location?
In the US, sales tax is set at the state level and often layered with additional city and county rates, which is why the combined rate can differ significantly even between neighboring areas.
Are all purchases taxed at the same rate?
No — many jurisdictions exempt certain categories like groceries or prescription medication, or apply a different reduced rate to them. Check your local tax authority for category-specific rules.
Some US states have no sales tax — how does that affect this calculator?
Simply enter 0% as the rate for those areas, and the calculator will show the pre-tax and post-tax amounts as identical.