Eliminating Fee Surprises for Marketplace Sellers Worldwide
eComFees was founded on a simple observation: calculating your real profit across modern e-commerce platforms has become needlessly complicated. We build fast, mathematically accurate, and completely free seller intelligence tools.
Why We Built eComFees
When selling online, revenue is vanity, profit is sanity, but cash flow is reality. Yet platforms have steadily fragmented their fee structures: tiered percentage rates, order-level fixed transaction cuts, category-specific caps, store tier discounts, buyer payment processing percentages, regulatory operating surcharges, and ad attribution fees.
A product listed for $100 might net $87 on one marketplace, $78 on another, and $92 on your direct-to-consumer store. Sellers were forced to guess margins on scratchpads or struggle with outdated spreadsheets that didn't reflect regional rule changes.
We created eComFees to give individual merchants, side-hustlers, and multi-channel e-commerce brands a single high-speed dashboard where exact net profit and break-even points are calculated in real time.
Our Guiding Principle
"Every seller deserves to know exactly what they will pocket before printing a shipping label or listing an item."
The Four Pillars of eComFees
1. Mathematical Precision
We don't use loose approximations. Our calculation engines encode exact tiered breakpoints (e.g. eBay's $2,500 / $7,500 bracket thresholds, Amazon subcategory rates, Etsy's 6.5% transaction fee + $0.20 renewal fees, and Mercari/Poshmark fixed brackets).
2. Global Multi-Currency Support
Marketplace fees vary wildly by jurisdiction. We maintain dedicated country models for the US, UK, Canada, Australia, Germany, France, Italy, Spain, and Japan, with native currency symbols and local VAT/GST handling.
3. Instant Reactive Performance
Built with modern lightweight web technology. Sliders, toggle switches, and numeric inputs recalculate instantly without server roundtrips, allowing rapid experimentation with target margins.
4. Verified 2026 Schedules
Our schedule database is actively curated and tested against platform rate changes, Spring/Fall seller updates, and payment gateway fee revisions so your projections remain accurate.
Full Coverage Across Major Marketplaces
Click any platform below to launch its dedicated fee calculator.
Tiered FVF, store discounts, and per-order fees.
Referral percentages, FBA sizing & Pro/Individual plans.
6.5% transaction, $0.20 listing, & offsite ads.
10% commission rate and direct-deposit payouts.
20% commission or flat $2.95 with prepaid labels.
0% marketplace selling fee & payment gateway rates.
Shopify Payments, third-party gateway surcharges, & plan ROI.
Standard 2.99% + $0.49 invoicing & merchant rates.
Have suggestions or spotted a recent fee adjustment?
We rely on the global selling community to stay ahead of sudden marketplace policy changes. Send us a message or request a new marketplace calculator.