Discount Calculator

Calculate sale price after discount with optional sales tax. Supports stacked percentage discounts.
$
Discount Type
%
%

You Save

$20.00

Sale Price

$80.00

Discount Breakdown

Original Price$100.00
First Discount- $20.00
Total Savings$20.00
Effective Discount20.0%
Sale Price$80.00

Use the Discount Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.

How It Works

This Discount Calculator helps you quickly determine the final price of an item after applying one or more discounts, and even includes optional sales tax. It's an essential tool for savvy shoppers, budgeters, and businesses looking to accurately price their products. With inflation projected to be around 2.2% in 2026, understanding the true cost of discounted items is more important than ever.

The calculation begins with the original price. Each percentage discount is applied sequentially to the *current* price, not the original price, reflecting how 'stacked' discounts work (e.g., 20% off, then an additional 10% off the discounted price). Finally, if entered, the sales tax is calculated on the last discounted price and added to reach the final total.

A common mistake is assuming stacked discounts are simply added together (e.g., 20% + 10% = 30% off), which is incorrect and always leads to a higher final price. Always remember that each subsequent discount is applied to the *reduced* price. Also, be mindful of whether sales tax is calculated before or after discounts in your specific region; this calculator assumes sales tax is applied after all discounts.

Example: Buying a new high-tech gadget in 2026

  1. 1 Imagine you're eyeing a new 'Quantum Leap' smart display, originally priced at $799.99 in mid-2026. The store offers a 15% promotional discount, and you have an additional 5% loyalty coupon. Sales tax in your state is 7.5%.
  2. 2 First, apply the 15% discount: $799.99 * (1 - 0.15) = $679.99. Next, apply the 5% loyalty coupon to this new price: $679.99 * (1 - 0.05) = $645.99. Finally, add the 7.5% sales tax: $645.99 * (1 + 0.075) = $694.44.
  3. 3 The final price you would pay for the 'Quantum Leap' smart display is $694.44.
  4. 4 This example demonstrates how applying discounts sequentially (stacked) and then adding sales tax provides the accurate final cost. This approach helps you budget precisely for your 2026 purchases, especially with the fluctuating prices of tech goods.

Source: BLS · Last updated: April 2026

Frequently Asked Questions

How do I calculate the price after a percentage discount?
Multiply the original price by (1 minus the discount percentage). For a 25% discount on a $80 item: $80 x 0.75 = $60. Or calculate 25% of $80 ($20) and subtract it.
How do stacked discounts work?
Stacked discounts are applied sequentially, not added together. A 20% discount followed by a 10% discount is not 30% off. On a $100 item: 20% off = $80, then 10% off $80 = $72. The total discount is 28%, not 30%.
Is sales tax calculated before or after the discount?
Sales tax is calculated on the discounted (final sale) price, not the original price. If an item is 30% off from $100 to $70, sales tax applies to $70.

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