Reselling News: Your eBay Shipping Opt-Out Closes Tomorrow and Two More Deadlines Land by October 4

Most of the reselling news that matters is not an announcement. It is a date on a calendar that passes while you are busy listing, and then the rules are different and nobody asks how you feel about it. Three of those dates sit between this morning and the first weekend of October.

Tomorrow, September 25: the eBay shipping opt-out closes

If eBay emailed you about calculated shipping, tomorrow is the last day to say no. Value Added Resource broke down the notice back in August: starting October 1, eligible calculated shipping listings will show buyers the discounted eBay Labels rate by default instead of whatever rate your settings display now. The opt-out window closes September 25.

Two limits on this. It only touches calculated shipping, so flat rate and free shipping listings are untouched. And it only applies to accounts that got the email, which means the first thing to check is whether you actually got one. eBay's public calculated shipping page still carries dates from an older rollout, so trust the notice in your account over the help page.

The reason to care is simple. If you display retail rates and buy labels at the discounted rate, the difference has been landing in your pocket on every sale. Plenty of sellers use it to cover boxes and tape without ever calling it that. On October 1 that gap closes for the accounts in scope. You can still change the setting back afterward, so this is not permanent, but it does flip without you if you ignore it.

September 30: myFitment goes dark

Auto parts sellers lose a tool next Tuesday. eBay is shutting myFitment down as a standalone service on September 30, ending support for Amazon, Rithum, SureDone and the other outside platforms it used to feed. What is left is Fitment Plus Auto, which lives inside eBay and applies compatibility data automatically.

The part worth knowing before Tuesday is that there is no export. Fitment already attached to your live listings is expected to stay attached, but myFitment will not manage, update or correct it after the shutdown, and you are not getting a file of your own data on the way out. If you sell parts and you have compatibility work you would want to reference later, screenshot or record it this week rather than next.

October 4: USPS holiday rates start

Postage goes up for the season a week from Saturday. The Postal Service's own announcement puts the temporary rates in effect at 12 a.m. CT on October 4, running until 12 a.m. CT on January 17, 2027. Priority Mail Express, Priority Mail, Ground Advantage and Parcel Select are all in it.

The increases scale hard with weight and zone. A light package is barely touched, with retail Ground Advantage and Priority Mail both up 50 cents in Zones 1 through 4 at 0 to 3 pounds. A heavy one is a different story, with Priority Mail in Zones 5 through 9 at 26 to 70 pounds up $9.10. If your inventory is clothing, that is lunch money. If you move boots, jackets in bulk, or anything in a big box, that is a real cut into margin for the next fifteen weeks.

The one thing to do today

Pull up a calendar and put these three on it, then handle the one that applies to you first. For most clothing resellers that is the shipping setting, and it takes about four minutes in Shipping Preferences. The sellers who get hurt in Q4 are rarely the ones who made a bad call. They are the ones who never made a call at all, and let three default settings decide their margin for them.

Knowing the date is the easy half. Knowing what your own numbers do when postage moves, and pricing for it before November rather than after, is the part we work through inside The Income Lab.

Photo: Thomas R Machnitzki, CC BY 3.0, via Wikimedia Commons.