Calculate sales tax amount and total price including tax instantly.
A sales tax calculator quickly computes the tax amount and total price including tax for any purchase. Whether you are shopping in a US state with sales tax, calculating VAT in Europe, or checking if a price includes tax, our free tax calculator gives you instant, accurate results for any tax rate.
Tax Amount = Purchase Price × Tax Rate / 100. Total Price = Purchase Price + Tax Amount. Example: A laptop priced at $800 in a state with 8.5% sales tax: Tax = $800 × 8.5/100 = $68. Total = $800 + $68 = $868. To find the pre-tax price from a total: Pre-tax Price = Total Price / (1 + Tax Rate/100).
US sales tax rates vary significantly by state. States like Oregon, Montana, New Hampshire, Delaware, and Alaska have no sales tax. States like California (up to 10.25% with local taxes), Tennessee (9.55%), Arkansas (9.51%), and Louisiana (9.55%) have the highest combined rates. Many states exempt groceries and prescription medications from sales tax.
Sales Tax (US): Collected only at the final point of sale to the consumer. VAT (Europe, UK): Collected at each stage of production; businesses claim back VAT on inputs. GST (India, Australia, Canada): Similar to VAT — a comprehensive consumption tax replacing multiple taxes. The end price for consumers is similar, but the collection mechanism differs significantly.
Since the 2018 US Supreme Court ruling (South Dakota v. Wayfair), online retailers must collect sales tax in states where they have "economic nexus" — typically over $100,000 in sales or 200+ transactions. This means most major online purchases now include applicable state sales tax, unlike the early days of e-commerce when online shopping offered a tax advantage over physical stores.
Unlike countries with a single national sales tax rate, places like the United States apply sales tax at the state level, and often stack additional county and city taxes on top, meaning the total rate can vary significantly even between two neighboring towns. Online sellers dealing with customers across multiple states have to account for this variation constantly, since sales tax obligations often depend on where the buyer is located, not just where the seller is based - a rule known as economic nexus that expanded significantly after a 2018 US Supreme Court ruling.
Shoppers use a sales tax calculator to quickly figure out the final out-the-door price of a purchase before checkout, which matters for budgeting on larger purchases like electronics or furniture where the tax amount itself can be a meaningful sum.
Some countries and some product categories (like certain groceries or essential goods) apply reduced or zero sales tax rates, while others show prices with tax already included in the sticker price rather than added at checkout. Knowing which pricing convention applies in your location prevents surprises at the register.
Sales tax is a consumption tax imposed by the government on the sale of goods and services, calculated as a percentage of the purchase price.
Sales Tax = Purchase Price × Tax Rate / 100. For example, a $100 item with 8% tax costs $100 + $8 = $108 total.
Not exactly. GST (Goods and Services Tax) is a value-added tax used by many countries around the world, collected at each stage of the supply chain. Sales tax in the US varies by state and is charged only at the point of sale.
In some countries, businesses registered for GST/VAT can claim back the tax paid on business purchases. Individual consumers generally cannot claim it back.
In countries like the US, sales tax is set at the state level and often layered with additional county and city taxes, causing significant variation even between nearby areas.
It depends on where the buyer is located and the seller's tax obligations in that state or region, which can vary based on economic nexus rules.
No, many places apply reduced or zero rates to certain categories like groceries or essential goods, while other items are taxed at the standard rate.
