Useful for
- Check everyday numbers before making a purchase, quote, or budget decision.
- Compare inputs quickly when you do not want to open a spreadsheet.
- Verify math for work, school, invoices, ads, or personal planning.
Sales Tax Calculator
Add or reverse sales tax from any price using a preset Canadian rate or your own custom rate.
Before tax
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Tax
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After tax
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Tool guide
How to use Sales Tax Calculator
Sales Tax Calculator gives you a focused way to handle one small task quickly. Add or reverse sales tax with preset Canadian rates or a custom rate. It is free to use, requires no login, and is built for quick checks when you need a practical result.
Example
For example, use Sales Tax Calculator to enter the values from a receipt, estimate, campaign report, or planning note, then copy the result into your document or message.
Good to know
Results are meant for quick planning and double-checking. For legal, tax, or financial decisions, review the numbers with a qualified professional.
How it works
The sales tax calculator applies a selected or custom tax rate to a subtotal, or works backward from a total that already includes tax. It helps you compare final prices before checkout.
Tax = subtotal x tax rate. Total = subtotal + tax.
Practical examples
- A 75.00 purchase with 8% tax adds 6.00 in tax.
- A 249.99 item with 5% tax totals 262.49.
- A receipt total can be reversed to estimate the pre-tax amount.
Common mistakes
- Make sure the tax rate is entered as a percent, not a decimal.
- Some locations have combined city, state, provincial, or special district taxes.
Questions
Can I use a custom rate?
Yes. Custom rates are useful when local tax differs from a preset rate.
Why is the final amount rounded?
Currency is normally rounded to cents, so tiny differences can happen across receipts.