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Alona Tool – Free Online Tools

Sales Tax Calculator

Runs in Your Browser

Add a tax rate to a price, or remove tax from a total, and see the price before tax, the tax and the total.

Browser-based: this tool works on your device and does not send your input to an Alona Tool server. See the Privacy Policy for details.
Fast Processing

Loading Sales Tax Calculator… This tool is an interactive page and needs JavaScript enabled in your browser.

Example Usage & Test Cases

Back out tax
Input Scenario:
Total 108.50 including 8.5% tax, Remove tax
Generated Result:
Price before tax 100.00, tax 8.50

How It Works

1

Enter the amount and the tax rate.

2

Choose Add tax or Remove tax.

3

Read the pre-tax price, tax and final price.

Frequently Asked Questions

No. You enter the rate, because rates vary by place and by product.

Good to Know

Common uses

  • Pricing an item with tax
  • Finding the pre-tax amount on a receipt

Limitations and notes

  • Uses one flat rate; it does not look up local rules or exemptions.
  • Rounding may differ by a cent from an official receipt.

Results are general estimates and are not professional financial, tax, legal or medical advice. See the Disclaimer.

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Free Online Sales Tax Calculator

Enter an amount and a single tax rate. Choose Add tax to see the total with tax, or Remove tax to find the original price from a tax-inclusive amount.

Key Highlights:

  • Free to use, no signup
  • Instant results
  • Processed in your browser
  • Works on mobile and desktop