01
Adding tax
$100.00 before tax at a 20% rate adds $20.00 of tax, for a $120.00 total.
VAT and Sales Tax Calculator
CalculatorsAdd sales tax or VAT to a price, or remove it from a total, at any rate — free tax calculator.
About
About the VAT and Sales Tax Calculator
Adds tax to a price, or works backward from a tax-inclusive price to find the original amount and the tax, at any rate you set.
Shoppers and freelancers use it to check what a price becomes once tax is added, while small business owners use it to work out how much of a tax-inclusive price is actually tax. It's one of many free calculators on Toolapt, and like every tool here, it's free to use with no sign-up and no limit on how many times you run it.
Examples
VAT and Sales Tax Calculator examples
3 worked examples
02
Removing tax from a gross price
A $120.00 tax-inclusive price at a 20% rate works out to $100.00 before tax, with $20.00 being the tax itself.
03
A different tax rate
$50.00 before tax at an 8.5% sales tax rate adds $4.25 of tax, for a $54.25 total.
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FAQ
Frequently asked questions
Quick answers to common questions about the VAT and Sales Tax Calculator.
What does the VAT and Sales Tax Calculator do?
It adds tax to a before-tax amount, or removes tax from an after-tax amount, at whatever tax rate you enter.
Is the VAT and Sales Tax Calculator free to use?
Yes. It's free, with no sign-up, no watermark and no limit on how many times you use it.
Is my input safe when I use this tool?
Yes. The amount and rate you enter are processed entirely on your own device — nothing is sent to a server.
How do you remove tax from a price that already includes it?
The before-tax amount is the tax-inclusive price divided by (1 + tax rate), and the tax itself is the difference between the two.
Does this work for VAT, GST and sales tax?
Yes. The calculator just applies whatever percentage you enter, so it works for VAT, GST, sales tax or any similar tax.
Do I need to click a button to see the result?
No. All three figures update instantly as you type or switch between adding and removing tax.
Can I use the VAT and Sales Tax Calculator on my phone?
Yes. The page is fully responsive and works on mobile, tablet and desktop browsers alike.
Does the VAT and Sales Tax Calculator have any limitations?
It applies a single flat tax rate; it doesn't model tiered tax bands or multiple different taxes on the same amount.