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Utilnivo

Finance

Discount Plus Tax Calculator

  • Browser-based
  • No signup

Enter an original price, discount percent, and sales tax percent. Discount is applied first, then tax on the reduced price, so you can see savings and the amount due.

100% Client-Side

Your data never leaves your computer.

How to use this tool

Enter the original price, discount percentage, and sales tax rate. The calculator applies the discount first, then adds tax on the reduced price to show savings and the final amount due.

Worked example

Example: a $200 item with a 20% discount and 8% sales tax drops to $160 before tax, then $172.80 after tax—a $27.20 savings from the original taxed price.

How it works

Enter the original price, an optional discount percent, and an optional sales tax percent. Discount is applied first, then tax is calculated on the discounted price. Coupons, fees, and shipping are not included.

Limitations

Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.

Privacy and file handling

Your data is processed in your browser and is not uploaded to our server.

Accuracy & methodology

This section documents how the calculator works, what it leaves out, and when results were last reviewed. Figures are educational estimates—not professional advice—and are not labeled "current" unless tied to automatically updated reference data.

Formula source or methodology
Discounted price = original × (1 − discount%). Tax = discounted price × tax%. Total = discounted price + tax.
Jurisdiction
User-defined
Unit system
Currency; percent
Rounding method
Currency amounts round to two decimal places (half up via Math.round × 100 / 100).
Assumptions
  • Discount applied before tax
  • Single tax rate on the discounted subtotal
Known omissions
  • Coupons, shipping, and fees
  • Tax-on-original-price jurisdictions
  • Multiple tax tiers
Test cases (automated)
  • $200, 20% off, 8% tax → $160 subtotal, $12.80 tax, $172.80 total
Version & last verified

Logic version 1.0. Content and formulas last verified .

Frequently asked questions

Is tax applied before or after the discount?

Discount is applied first, then sales tax is calculated on the discounted price.

Can I use discount or tax alone?

Yes. Set the other percent to 0 if you only need one of them.

Are coupons or fees included?

No. Results use only the price, discount percent, and tax percent you enter.

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