I'll just add, the PO can apply TWO of these if they qualify: so you could be paying $4, $15, $19 or $30 more per package. If you use ebay labels with calculated shipping, ebay is adding this into its calculations. However, it you offer free shipping or you set a flat amount, you will want to adjust your prices, for qualifying packages. And, of course, in some cases, you might want to consider a different carrier, if that is practical for you.
These fees, which USPS calls a "non-standard fee" apply to Retail Ground, Priority Mail, Priority Mail Express, Parcel Select Ground, and First Class Package Service.
ebay's announcement can be found here:
https://community.ebay.com/t5/Announcements/USPS-rate-changes-effective-April-3-2022/ba-p/32787641
Keep in mind this applies whether you use ebay labels or not, and applies if you are using USPS on any platform. So far, I have not heard of any other label provider (such as PirateShip) offering a discount on these non-standard fees.
So, for larger items, it's more important than ever to know your package dimensions.
As for me, I think many of my items can handle the $4.00 increase, especially since other sellers will have the same cost (if using USPS). I might want to adjust my item price on some items, but for now, I'll probably let the current price ride----this is long tail stuff, I don't expect it to sell quickly regardless. But the 15, 19, or 30 increase will be hard to pass on to the buyer for some items, and so I might remove some items, or maybe go with Local PickUp only. (more likely remove and try to sell locally, via a consignment shop etc....depending on the item)
Different sellers will find different solutions. The important thing is to not be caught unaware.
