Easyinvoice
Easyinvoice Close Menu
  • Features
    • All Features
    • Invoices
    • Estimates
    • Statements
    • Dashboards
    • Inventory
    • Reporting
    • MTD
  • Pricing
  • MTD
  • Free tools
    • VAT calculator
    • Margin calculator
    • Markup calculator
    • Break-even calculator
    • GST calculator Australia
    • GST/HST calculator Canada
    • GST calculator New Zealand
    • VAT calculator South Africa
    • Sales tax calculator
  • Blog
  • Support
    • Getting Started
    • Invoices
    • FAQ’s
    • Contact us
App store  Google play
Menu
Log in Free trial

Sales Tax Calculator

Add sales tax to a price, or take it out of a total. Type your rate, down to 3 decimals, and see the tax and the total straight away. No ZIP code, no sign-up.

This calculator needs JavaScript to run. The sum is simple: to add sales tax, multiply the price by the rate and divide by 100. For example, $100 at 8.25% is $8.25 of tax, so the total is $108.25.

What do you want to do?
$
%
Price before tax
Sales tax
Total

Tap a figure to copy it.

Put this on an invoice

Add sales tax if you’re registered and send the invoice to your client in minutes.

Create your invoice

14-day free trial, no card required.

Rounded to the nearest cent. This works out sales tax on one amount. It is not tax advice.

This calculator does not look up rates by address, so the result is only as right as the rate you type.

How to calculate sales tax

To add sales tax, multiply the price by the rate and divide by 100. $100 at 8.25% is $8.25 of tax, so the total is $108.25.

Or multiply the price by 1.0825 in one step. Two numbers in, one total out.

How to take sales tax out of a total

To find the price before tax, divide the total by 1 plus the rate. $108.25 at 8.25% divided by 1.0825 is $100.00, so the tax was $8.25.

Taking 8.25% off the total gives the wrong answer: $108.25 minus 8.25% is $99.32, not $100.00.

Sales tax on $100 at common rates

Example rates on a $100 price: the sales tax and the total.

Rate Sales tax Total
5% $5.00 $105.00
6% $6.00 $106.00
7% $7.00 $107.00
7.25% $7.25 $107.25
8.25% $8.25 $108.25
9.5% $9.50 $109.50

Total $100, tax inside

The sales tax inside a $100 total and the price before tax.

Rate Tax inside Price before tax
5% $4.76 $95.24
6% $5.66 $94.34
7% $6.54 $93.46
7.25% $6.76 $93.24
8.25% $7.62 $92.38
9.5% $8.68 $91.32

Selling in Canada? Use our GST/HST calculator, with every province built in.

More free tools: VAT calculator, margin calculator, markup calculator.

Sales tax calculator FAQ

How do you calculate sales tax?

To calculate sales tax, multiply the price by the tax rate and divide by 100. For a $50 price at 7%, the tax is $3.50 and the total is $53.50.

How do you calculate sales tax out of a total?

To take sales tax out of a total, divide the total by 1 plus the rate as a decimal. A $106.00 total at 6% is $106.00 ÷ 1.06 = $100.00 before tax, so the tax is $6.00.

How do I add 8.25% sales tax to a price?

To add 8.25% sales tax, multiply the price by 1.0825. A $19.99 item becomes $21.64, with $1.65 of tax.

What sales tax rate should I use?

Use the rate shown on your receipt or the one your state’s tax department gives for the sale. This calculator does not look up rates by address, so the result is only as right as the rate you type.

Can I add sales tax to an invoice?

Yes. EasyInvoice lets you create invoices with sales tax, VAT or GST, or with no tax at all, and send them in minutes.

Does the calculator round to the cent?

Yes. The sales tax is rounded to the nearest cent, half a cent and above rounds up.

Haven’t found the answer?

Chat with a real person, not a chatbot.

Contact us

You’ve got the tax. Now get paid.

Other invoicing apps

up to £44.99*a month

  • With many apps, the price goes up as you send more
  • Unlimited invoices are often only on the top plan

Save up to £456 a year

EasyInvoice

£6.99a month

  • Unlimited PDF invoices and quotes
  • Same price, however many you send
Create an invoice with sales tax

14 days free. No card needed.

  • 4.7 ★App Store
  • 600,000+downloads
  • 11+years on the market
9:41●●●
‹PDF invoiceSend

*Highest public monthly price for unlimited invoices among the popular invoicing apps we checked, November 2026.

Invoicing for small business owners. Focus on running your business, not your accounting.

App store Google play
FEATURES
  • Invoices
  • Estimates
  • Statements
  • Dashboards
  • Inventory
  • Reporting
SUPPORT
  • EasyInvoice Pricing — Simple Invoicing & MTD for Income Tax
  • About Us
  • Blog
  • Support
EXPLORE
  • Privacy Policy
  • Terms of use
  • Cookies
Copyright 2026 by EasyInvoiceapp.com