THE FLIP LAB · TOOL

Resale Fee Estimator

How much does a selling fee change the flip?

Selling platforms may assess percentage charges, fixed charges and category-specific extras. Use your verified current fee schedule, then vary the percentage and fixed fee here to see the effect. The calculator applies its rate to item revenue plus shipping collected, not merely your item price.

See full calculator explanation →

SMART PRESETS · U.S. SELLERS

Where will you sell it?

Choose a marketplace and shipping service. We'll fill in the fee and postage assumptions—you can still edit every amount.

Rates reviewed Nov 1, 2026

Selling marketplace

Who handles buyer postage?

Shipping service / packaging

Use real quoted prices for zone/weight services.

USPS Flat Rate price class

Official USPS rates effective Oct 4, 2026. Box/envelope must fit; extras may apply.

Official marketplace fee schedule ↗USPS current price list ↗Get an actual USPS quote ↗

THE FIND

What did you pay? $Expected sale price $Shipping charged to buyer $Marketplace fee percentage %Fixed transaction fee $

YOUR REAL COSTS

Shipping you pay $Packaging supplies $Cleaning and repairs $Other costs $Minimum acceptable profit $

OPTIONAL SELLING ADJUSTMENTS

Buyer sales tax (for fees only; not your revenue)$Promoted listing / boost fee (% of item price)%

Sales tax is not added to seller proceeds. Some marketplace processing fees apply to it; extra listing, subscription, taxes on fees, or optional advertising charges may still apply. Place nonpercentage expenses in Other costs.

ESTIMATED NET PROFIT$32.23Checking your numbers...

ROI on acquisition + direct costs0%

Break-even item sale price$0.00

All-in selling fees$0.00

Net margin on buyer payments0%

Where the money goes

—

Results are scenarios, not professional appraisals or live market-price estimates. Marketplace presets are U.S. baseline assumptions, not a final fee quote. Calculations adjust for each preset’s fee basis and selected shipping-payment method. Review your own category, account tier, taxes, ads, label eligibility and marketplace statement.