Sales Tax Calculator: Calculate Total Purchase Costs

Know the final price before you reach the checkout.

Whether you are shopping for a major family appliance, calculating business expenses, or traveling across the border, sales tax can significantly change the final price of a purchase. Our Sales Tax Calculator helps you determine the tax amount and total cost for any item, accounting for the unique tax structures in North America and the United Kingdom.

Understanding Regional Sales Tax

Sales tax isn’t a “one size fits all” percentage. On familyhealthcalc.com, we break down the three most common systems:

1. United States (Sales & Use Tax)

In the US, there is no national sales tax. Instead, taxes are determined by a combination of State, County, and City rates.

• Pro Tip: Five states (Oregon, New Hampshire, Montana, Delaware, and Alaska) have 0% state sales tax.

2. Canada (GST, PST, and HST)

Canada uses a mix of federal and provincial taxes:

• GST (Goods and Services Tax): A 5% federal tax.
• PST (Provincial Sales Tax): Varies by province.
• HST (Harmonized Sales Tax): A combined rate used in provinces like Ontario and Atlantic Canada to simplify the calculation.

3. United Kingdom (VAT)

The UK uses Value Added Tax (VAT). Unlike the US and Canada, the price you see on the shelf in the UK usually already includes VAT.+1

• Standard Rate: 20%
• Reduced Rate: 5% (for some items like home energy)
• Zero Rate: 0% (for most food and children’s clothes)

The “Reverse” Tax Calculation

Have you ever looked at a total and wondered what the original price was? Our calculator supports Reverse Taxing.

• The Formula: To find the original price from a total that already includes tax, use: