Apply the sale discount
The advertised percentage comes off the original product price.
Home & Money
Black Friday Deal Calculator
Also works for Cyber Monday, holiday sales and everyday deals.
Combine a sale discount, coupon, cashback, sales tax, and shipping. See what you pay at checkout and what the deal effectively costs after cashback.
Deal result
Your real total
Enter a price to see your deal.
Add the sale terms you know. Everything else can stay at zero.
Effective cost$0.00
You save$0.00
Effective discount0%
Cashback value$0.00
Cashback is not an instant discount. You may still pay the full checkout total and receive the reward later, subject to the offer's terms.
Calculation breakdown
- Price after sale discount
- $0.00
- Coupon
- −$0.00
- Price after coupon
- $0.00
- Sales tax
- $0.00
- Shipping
- $0.00
- Checkout total
- $0.00
How it works
One total for today. One cost after rewards.
Retail promotions are easy to overestimate when percentages are added together. This calculator applies each part in sequence and keeps later cashback separate from the amount charged at checkout.
Apply the coupon
A dollar or percentage coupon comes off the already discounted price and never makes it negative.
Add checkout costs
Sales tax is calculated on the price after the coupon, then shipping is added.
Account for cashback
Expected cashback reduces effective cost, but remains separate from the checkout total.
Black Friday deal calculator FAQ
What order does the calculator use?
It applies the sale discount first, then the coupon, then sales tax and shipping. Cashback is shown after checkout because it is usually received later.
Does sales tax reduce my savings?
No. Product savings compare the original price with the discounted price after the coupon and expected cashback. Tax and shipping are included in checkout and effective cost, not counted as product savings.
Can a coupon make the price negative?
No. A coupon larger than the discounted product price is capped at that price.
Is cashback guaranteed?
No. The result is an estimate based on the percentage you enter. Eligibility, exclusions, and payout timing depend on the cashback offer.
Are my prices sent anywhere?
No. The calculation runs locally in your browser and the values are not uploaded by this tool.