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Mercari Fee Calculator
See your real net profit on Mercari after the 10% selling fee, 2.9% + $0.50 payment processing, your shipping cost, and cost basis. Updated for 2026.
Your numbers
Quick start — try a preset
10% sell + 2.9% + $0.50 payment
What you paid for the item
What the buyer pays for the item
$0 if free shipping. Most marketplaces charge fees on this too.
What you pay for the label
Box, tape, supplies, gas to thrift, etc.
Net profit
$20.70
Breakdown
- Gross revenue (sale + shipping)
- $45.00
- − Cost basis
- -$10.00
- − Shipping cost
- -$8.00
- − Other costs
- -$0.00
- − Mercari fees
- -$6.30
- Net profit
- $20.70
10% selling ($4.50) + 2.9% + $0.50 ($1.81)
These are simplified estimates, not marketplace quotes. Whatnot's standard U.S. schedule was checked in July 2026; other marketplace tiers were not independently re-verified in this update. Rates can vary by category, region, promotion, subscription, and seller status. Whatnot processing here excludes buyer tax and any tax on Whatnot fees because those amounts are not entered. Always verify the marketplace's current fee schedule.
Mercari fee math, the honest version
Mercari's 10% headline rate is one of the lowest among major resale platforms — but the 2.9% + $0.50 payment processing fee adds up fast on lower-priced items. On a $10 sale with no shipping, the effective fee rate is over 18%. On a $100 sale, it's about 13.4%. The fixed $0.50 component punishes low-priced flips.
Practical pricing implications:
- Items under $15 on Mercari rarely make sense unless cost basis is near zero — the fixed payment fee eats too much
- Items $20-50 can work on Mercari when your cost basis and shipping stay low
- Items above $50 still work but consider whether eBay's broader buyer base would surface a higher sale price that offsets eBay's slightly higher fee load