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For US sellers · rates checked 2026-11-11. Official fee sources are linked at the end of this page.

Marketplace Fee Changelog

This changelog records the official marketplace fee pages we fetched while building OpenFeeCalculator, the dates on those pages, and the rates we transcribed into dated JSON. It is not a complete history of every fee change those companies have ever made. It is a ledger of what was visible on 11 November 2026 (Asia/Shanghai), plus effective dates the pages themselves stated. When we re-check a source and a number moves, the new check date and the old one will both appear here. Until then, treat this as the opening entry for the site.

By Alex, Alex Builds Studio · Updated 2026-11-11

This changelog records the official marketplace fee pages we fetched while building OpenFeeCalculator, the dates on those pages, and the rates we transcribed into dated JSON. It is not a complete history of every fee change those companies have ever made. It is a ledger of what was visible on 11 November 2026 (Asia/Shanghai), plus effective dates the pages themselves stated. When we re-check a source and a number moves, the new check date and the old one will both appear here. Until then, treat this as the opening entry for the site.

How to read an entry

Each block names the platform, the official URL, the check date, and any effective date printed by the platform. 'Checked' means we fetched the page or, where a host blocked an automated request, retrieved the article another documented way, and copied the figures into JSON with a sourceUrl. 'Effective' is only quoted when the official page itself gives a date, such as Mercari's 6 January 2025 seller-fee change, PayPal's 'last updated 4 November 2026' line, Depop Boost from 23 March 2026, or Whatnot's 'standard rates as of September 2026.' We do not back-fill a history we did not see.

eBay (US selling fees)

Checked 11 November 2026 against Seller Center 'Seller fees' and the managed-payments 'Selling fees for eBay sellers' page. The Seller Center table is the primary source for US final value fee rows, including 13.6% then 2.35% for most categories, the $0.30 / $0.40 per-order fee, store discounts that exclude Starter Stores, and exceptions such as sneakers over $150, trading cards, books, jewelry, handbags and guitars. The managed-payments page is the source for the 1.65% international fee that can apply to US-registered sellers who are not using eBay International Shipping. Official worked examples (Marco, Val, Chad, Jodie) were captured as unit tests. No earlier eBay revision is listed here because we did not archive a previous fetch in this project.

Etsy, Poshmark and Mercari

Etsy Help articles on fees and taxes, payment processing fees, and Offsite Ads were checked on 11 November 2026. The figures we use are a $0.20 listing fee, a 6.5% transaction fee on item price plus shipping plus gift wrap, and US Etsy Payments processing of 3% + $0.25, including tax, plus Offsite Ads at 15% or 12% after $10,000 in sales in any consecutive 365-day period, capped at $100 per order. Etsy's legal /legal/fees URL returned 403 to our request; we documented that and relied on the Help articles. For US sales tax, we assume the 6.5% transaction fee excludes tax unless a future official page says otherwise, and we label that assumption on the Etsy calculator.

Poshmark's 'Guide to Poshmark' was checked the same day. The official seller fee remains $2.95 under $15 and 20% of the listing price at $15 and above. Mercari Help 'Fees on Mercari' was also checked on 11 November 2026. It states that since 6 January 2025, the seller fee is 10% of the item price plus buyer-paid shipping, and that the 3.6% Buyer Protection fee is paid by the buyer. That 2025-01-06 date is Mercari's, not ours.

PayPal, Depop and Whatnot

The US PayPal Merchant Fees page was checked on 11 November 2026 and printed 'last updated 4 November 2026' on the page itself. We transcribed Goods and Services at 2.99% with no fixed fee, Checkout (including PayPal on a merchant site, Venmo, and related listed products) at 3.49% + $0.49, and an international increment of +1.50% where the official table shows it. Commercial Transaction rates should not be mixed with personal-payment folklore from older blog posts.

Depop's 'Seller fees and charges' article was retrieved on 11 November 2026 (the Zendesk host blocked some automated fetches; the body was read and cited). For US sellers it describes no selling fee and a processing fee of 3.3% + $0.45. Boost is 12% from 23 March 2026, a date the article itself states. Whatnot's 'How Fees Work' page, checked the same day, describes standard commission starting at 8% of the item price only, as of September 2026, plus processing of 2.9% + $0.30 on the order total. Public category volume tiers such as a 4% coins rate were not on the page we fetched, so they are not in our JSON.

If your live invoice disagrees with an entry, trust the invoice. Email alexbuildsstudio@gmail.com with the official URL and we will re-check the source and, if needed, add a dated revision here.

How to use this calculator

  1. Look at the check date first. A rate is only as current as the day we last fetched the official page.
  2. Prefer dates the platform printed. Effective dates in this log are quoted from official pages, not inferred.
  3. Open the linked calculator after a change. JSON, unit tests and the page copy are updated together when a rate moves.
  4. Send us a source if something looks stale. We would rather correct a line than defend an old fetch.

Frequently asked questions

When were these rates last checked?

On 11 November 2026, unless a later entry on this page says otherwise.

Is this a complete history of marketplace fee changes?

No. It records official pages we actually fetched for this site, plus effective dates those pages printed.

Which PayPal page date did you use?

The US merchant fee page stated it was last updated on 4 November 2026 when we fetched it on 11 November 2026.

When did Mercari's 10% seller fee start?

The official help article we fetched says since 6 January 2025.

When did Depop Boost become 12%?

The Depop article we read states 23 March 2026.

Why is a Whatnot category tier missing?

If it was not on the public fees page we fetched, we do not invent it.

Are you affiliated with these platforms?

No. This log is maintained by Alex Builds Studio.

How will future changes appear?

As new dated entries on this page, with an updated checkedAt in the corresponding JSON.

Sources and updates