About FeePilot

Fees verified between October 20, 2026 and October 21, 2026

FeePilot is a free marketplace fee calculator that helps online sellers compare fees across 20 platforms instantly. Enter your item price, shipping, and cost — and see your net profit on every major marketplace side by side. No account required, and no affiliate games.

Why FeePilot Exists

Marketplace seller fees are confusing. Each platform has different rates, different rules, and hidden costs that can eat into your margins without you realizing it.

  • Most sellers don't realize how much fees vary — from 0% on Vinted to 20% on Poshmark to 25% on GOAT (if your rating drops)
  • Fee structures are layered and confusing — Etsy stacks a $0.20 listing fee + 6.5% transaction fee + 3% + $0.25 processing + potentially 15% offsite ads
  • Some platforms charge fees on shipping, others don't. Some include payment processing, others add it on top
  • FeePilot was built to give sellers a fast, honest way to compare fees and maximize profit
  • No affiliate links, no sponsored rankings — just accurate fee math

What FeePilot Covers

20 Supported Platforms

Etsy, Depop, Poshmark, Mercari, eBay, Amazon FBA, Walmart, TikTok Shop, FB Marketplace, OfferUp, Grailed, Whatnot, StockX, GOAT, Reverb, Vestiaire Collective, Vinted, PayPal G&S, Shopify, and Faire.

Fee Types Calculated

  • Listing fees (Etsy's per-listing fee)
  • Selling commissions and transaction fees
  • Payment processing fees (bundled and separate)
  • Shipping fee treatment (included vs excluded from commission)
  • Per-order flat fees
  • Platform-specific charges (StockX levels, GOAT ratings, Etsy offsite ads)

Tools & Features

Who It's For

FeePilot is built for anyone who sells on online marketplaces — resellers, thrift flippers, sneaker sellers, vintage clothing dealers, handmade creators, and small business owners. Whether you're deciding which platform to list on, pricing an item to hit a profit target, or comparing fees before committing to a marketplace, FeePilot gives you the numbers you need in seconds.

How It Works

Enter your item price, shipping costs, and what you paid for the item. FeePilot calculates every fee component — marketplace commission, payment processing, listing fees, and any platform-specific charges. The comparison table shows your net profit and margin across all supported platforms so you can choose the best one for each sale.

Fee calculations run in your browser. The prices you enter are saved in your browser's local storage, not on FeePilot's servers.

How We Keep Fees Accurate

  • Sourced from official pages — every fee comes from the platform's own fee page or terms (linked from each fee guide), never from third-party sites or guesses
  • Date-stamped — each platform guide shows the date FeePilot last verified that platform's fees
  • Fee changes we've covered:
    • Mercari's payment processing fee removal (effective January 6, 2025)
    • Depop's 2024 removal of selling fees (UK sellers earlier in 2024, US sellers from July 15, 2024)
    • StockX's March 2026 Flex fee restructuring
    • Vestiaire Collective's March 2026 fee update and its new schedule for items listed from October 15, 2026
    • eBay's January 2026 Promoted Listings attribution expansion
  • Sources linked — every individual fee guide page links to the platform's official fee documentation

Built By

  • FeePilot is built and maintained by GP Creative Studios
  • Independent developer focused on building useful, no-nonsense tools for online sellers
  • Contact: gpcreativestudios2018@gmail.com

Privacy & Data

Fee calculations run in your browser and need no account. The prices, saved calculations and settings you enter are kept in your browser's local storage, not on FeePilot's servers. What does leave your device:

  • The ZIP codes and package weight you enter in the optional shipping estimator, sent to FeePilot's server to look up USPS rates
  • Your email address, if you sign up for fee-change alerts — stored with our email provider, Resend
  • Usage statistics: the site uses Google Analytics 4 and Plausible Analytics, and shows Google AdSense ads. Google's services may set cookies.

Frequently Asked Questions

Is FeePilot free?

Yes. Every FeePilot tool is free, with no account — compare fees across all 20 platforms, export CSV reports, share results via link, and use the reverse and bulk calculators at no cost.

How often are fees updated?

Each platform's fee data carries the date FeePilot last checked it against that platform's official fee page, and every platform guide shows that date. Today the oldest check is October 20, 2026 and the newest is October 21, 2026.

Does FeePilot earn commissions from platforms?

No. FeePilot has no affiliate relationships with any marketplace. We do not earn referral commissions, accept sponsored rankings, or receive payments from any platform. Fee calculations are based purely on published fee structures.

What is the reverse calculator?

A free tool. Instead of calculating fees from a sale price, the reverse calculator works backwards — enter your target take-home amount and it tells you what price to list at on each platform to hit that goal.

Explore Fee Guides

Read detailed fee breakdowns for every platform, with real numbers, worked examples, and tips to reduce costs:

All Fee Guides →Compare All Platforms →

Built with Next.js, React 19, and TypeScript. Deployed on Vercel.

Disclaimer: FeePilot is not affiliated with any of the marketplaces or payment processors listed on this site. All fee information is based on publicly available data. Fees change periodically — always consult each platform's official documentation for the latest rates.