Free reseller profit calculator

What will you actually make on this flip?

Enter one price and see your real profit after fees and shipping on eBay, Poshmark, Mercari, Depop and Etsy, plus the most you should pay for it.

Try:

The sale

Your costs

Your goal

All platforms, best first

    Profit is what you keep after fees, your label, supplies and what you paid. Tap a platform for the fee breakdown. Sales tax not included.

    Fee settings

    Default US fees last checked . Change any number to match your account; it's saved on this device only.

    Coming soon

    FlipMath Pro: know your real profit at tax time

    Your 1099-K shows every dollar you sold, not what you kept. Pro keeps a running record of every flip so you can prove your costs and stop overpaying.

    • Log a buy in seconds from your phone, with a receipt photo
    • Import sales reports from eBay, Poshmark, Mercari, Depop and Etsy
    • See profit by month, platform and sourcing spot
    • One-click year-end report for your tax preparer

    $6/month · waitlist gets 3 months free

    Would you pay $6 a month for this?

    Questions

    Which platform has the lowest fees?

    It depends on the price. Under $15, Poshmark's flat $2.95 fee eats a big share of the sale, while Depop and Mercari keep more for you. On higher-priced items Poshmark's 20% is the biggest cut, and eBay's fee includes the shipping you charge. Put your numbers in above to see which wins for your item.

    What is the max buy price?

    It is the most you can pay for an item and still hit your target profit after fees, shipping and supplies. Use it at the thrift store or garage sale before you buy.

    Are the fees up to date?

    The default fees were last checked in the month shown under Fee settings. Marketplaces change fees, so you can edit any number and the calculator remembers it on your device.

    Do you store what I type?

    No. The calculator runs in your browser. Nothing you enter is sent anywhere.