Mercari Fee Calculator

Mercari changed its fee structure twice in under a year, and outdated advice is still everywhere. Until March 2024, sellers paid 10% plus payment processing. Then Mercari made headlines by dropping seller fees to zero — shifting costs to buyers through service fees and a 2.9% + $0.50 payment processing charge. Sellers loved the optics; buyers hated checkout surprises, and conversion suffered.

On January 6, 2025, Mercari reversed course: the 10% selling fee returned, buyer-side charges were consolidated into a smaller 3.6% Buyer Protection fee, and the separate payment processing fee was eliminated for both sides. That structure is still in force as of July 2026. Two details soften the 10%: withdrawing your balance by standard direct deposit is now free (it used to cost $2 per cash-out), and Mercari runs a Seller Tiers program that grants selling-fee discounts to high-volume sellers — the exact discount percentages are only visible in your seller dashboard.

Pricing takeaway: because the fee hits buyer-paid shipping, listing a $40 item with $8.99 shipping costs you more in fees than listing the same item at $44 with a cheaper label built in. Run both setups through the calculator above before you list.

Mercari reports your gross sales to the IRS on Form 1099-K once you exceed the federal threshold — $20,000 AND more than 200 transactions in a calendar year under the One Big Beautiful Bill Act of 2025. Several states require a 1099-K at far lower levels (Massachusetts, Maryland, Vermont, and Virginia start at $600), so plenty of casual Mercari sellers get one anyway.

What you owe depends on what you sold. Decluttering — selling your own used electronics, clothes, or games for less than you paid — produces no taxable income, though you should keep records in case a 1099-K arrives. Buying inventory to flip is a business: profits belong on Schedule C, Mercari's 10% fee and your shipping labels are deductible expenses, and net earnings of $400 or more trigger 15.3% self-employment tax on top of income tax.

If you resell for profit, estimate the damage with our 1099 tax calculator, and use the quarterly tax calculator to figure out what to send the IRS each quarter — there is no employer withholding on marketplace income.