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eBay postage now varies by ZIP and Amazon reshuffles ASIN fees

19 October 2026

eBay postage now varies by ZIP and Amazon reshuffles ASIN fees

Two changes this week rewrite the maths under your listings. eBay postage now depends on where the buyer lives, and Amazon is moving some ASINs into new fee categories on 31 October. Neither is visible on the listing page, and both land in your net profit.

eBay postage now depends on the buyer's ZIP code

eBay postage now depends on the buyer's ZIP code

eBay confirmed that USPS moved domestic Ground Advantage to geography-based pricing from 18 October 2026. The old two rate groups, standard and rural, become three, set by the destination ZIP code. eBay says it is not an overall rate rise, that calculated shipping updates automatically, and that Priority Mail is unchanged.

Calculated shipping looks after itself, because the buyer pays the recalculated rate. Free postage and flat-rate postage do not. You now absorb a cost that moves with the delivery address, so two identical sales of the same SKU can return different net profit, and the worse one is simply the parcel that travelled further. It will not show in your eBay fee breakdown either, because it is a cost you paid rather than a fee eBay charged. It only appears when postage paid is matched to the order it belongs to, which is what /profitability is built to do.

What to do: take last month's US orders on free or flat-rate listings, split them by destination region, and price each SKU off your worst-case postage rather than your average. Where the worst case kills the margin, raise the flat rate or switch that listing to calculated shipping before Black Friday traffic arrives.

Amazon is moving some ASINs into new fee categories on 31 October

Amazon is moving some ASINs into new fee categories on 31 October

Amazon is reassigning some ASINs to different fee categories with effect from 31 October 2026. The fee category is not always the category shoppers browse, so a listing can look identical while the referral fee underneath it changes, and other fees can move with it. Sellers are told to check the Fee Preview report and dispute incorrect categories before that date.

Referral fee is a percentage of the sale price, so a move from 8% to 15% on a £25 item takes £1.75 out of every unit with nothing visible on the page. If a repricer is working to a floor price built on the old fee, it will keep selling below your real break-even.

The timing makes it worse. Late October is when most sellers lock Q4 prices and commit stock, so the change runs through Black Friday on prices set before it applied. Matching fee per ASIN against actual payouts through /integrations/amazon is how you spot the ones that moved.

What to do: pull the Fee Preview report this week, sort by referral fee percentage, and check the 20 ASINs carrying most of your Q4 revenue first. Dispute anything miscategorised before 31 October, then reset any repricer minimum built on the old fee, so you are not defending a margin that no longer exists.

Quick hits

  • TikTok Shop: Subscribe & Save is live in UK Seller Centre at 5%, 10%, 15% or 20% off, plus up to £300 in Sales Accelerator ad credits, capped at £750 a month - lock in repeat orders and claim free ad budget before Black Friday.
  • TikTok Shop: UPS Happy Returns box-free drop-offs are now a return option at around 10,000 Return Bars - consolidated returns should cut your per-return cost in the January peak.
  • Walmart: new Simplified Shipping Settings APIs and Item Spec 5.0 published on 15 October - if your listing or shipping tool talks to Walmart by API, test it now or risk failed uploads and broken delivery promises in peak.

On your radar next week

  • Friday 23 October: Shopify Tax starts applying tax to US return shipping fees automatically. If you calculate or reconcile that tax manually, switch it off before Friday or you will charge and report it twice. Restocking and handling fees are unaffected.
  • Monday 26 October: Amazon adds compliance questions for fridges, freezers and air conditioners, shock absorbers and suspension lift kits, markers and writing instruments, and pool and spa products. Have the refrigerant, ink and chemical details to hand or listings can be blocked mid-peak.

Sources

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