Poshmark Stops Covering Overweight Shipping Costs On October 26, So Sellers Shipping Heavy Bundles Will See Five To Fifteen Dollars Or More Deducted From Earnings

Susan Parker

2 hours ago

If you sell on Poshmark, you already know the thrill of a good bundle. A buyer likes six of your things, the notifications start pinging, and suddenly one little closet clean-out turns into a real payday. Starting October 26, 2026, though, that same heavy bundle could cost you money before it ever leaves your house.

According to a report from Value Added Resource published October 17, 2026, Poshmark announced on October 8 that it will stop covering extra postage on overweight packages. Starting October 26, sellers who ship an overweight package without buying the label upgrade will have the extra cost deducted from their earnings.

What changes on October 26

Until now, Poshmark has covered the extra postage on overweight packages. That safety net is going away. Per the report, the deductions work like this:

Packages from 5.01 to 10 pounds: $5 deducted
Packages from 10.01 to 15 pounds: $10 deducted
Packages from 15.01 to 25 pounds: $15 deducted
Packages over 25 pounds: the full USPS cost is deducted

The deduction applies when a seller ships an overweight package without buying the label upgrade. In plain English, if you pack a box that weighs more than your label covers and you did not upgrade, the extra postage comes out of your pocket instead of Poshmark’s.

The hazmat fee is changing too

The overweight rule is not the only change. The report says Poshmark is also ending its subsidy of the USPS hazmat noncompliance fee on October 19, 2026. That means sellers are now responsible for the full $50 penalty if a package is flagged for shipping hazardous materials out of compliance.

Hazmat shipping rules can catch sellers off guard, because everyday household items can fall under them. A $50 charge on a $20 sale is a nasty surprise, so it is worth reading up on what the post office considers hazardous before you ship anything that comes in an aerosol can, a pressurized container or a bottle of liquid.

Value Added Resource also notes that Poshmark did not explain the change. For sellers who already feel nickel-and-dimed by marketplace fees, the silence does not help.

Why heavy bundles are the problem

Bundles are one of the best parts of selling on Poshmark. Buyers like grabbing several items from one closet, and sellers like moving a lot of inventory in one sale. But a bundle of denim, boots, coats or a stack of kids’ clothes can add up in weight fast, and weight is exactly what the new deductions are aimed at.

Here is a quick example of how the math can work. Say a seller sells a bundle for a modest price and the package lands in the 10.01 to 15 pound range without the label upgrade. Under the new rules, $10 comes off the earnings. If the bundle is a big one over 25 pounds, the seller pays the full USPS cost, which could be far more. On a small sale, that deduction can eat a real chunk of the profit, and on a very big one it could wipe it out.

That is the fairness issue many sellers will be talking about. Now sellers carry a new risk if they misjudge a package’s weight.

What sellers can do

You cannot change the rule, but you can protect your earnings. Here are some practical steps:

Weigh every package. A cheap kitchen or postal scale is one of the best tools a reseller can own. Weigh the item in its final packaging, not just the clothes.
Know the thresholds. Memorize the weight breaks at 5 pounds, 10 pounds, 15 pounds and 25 pounds, so you know when you are close to a line.
Look into the label upgrade. If a package is going to be heavy, the upgrade is the way to avoid the deduction. Check the cost on Poshmark before you ship so you can compare it with the deduction.
Use lighter packaging. Switch to a poly mailer for soft goods when you can. A heavy cardboard box and lots of padding add pounds you do not need.
Talk to buyers about bundles. If a buyer wants a huge bundle, you may want to suggest splitting it into two packages or checking whether it fits the weight limit.
Check before you ship hazardous items. If an item might fall under hazmat rules, look at the postal rules first or just leave it off your closet.

Do the math before you list

For many sellers, the bigger lesson is to price with shipping in mind. If you sell heavy items like boots, winter coats or sets of kids’ clothes, think about how much a bundle might weigh before you accept an offer. A great price is not a great price if the deduction eats up the profit.

It is also smart to keep an eye on your earnings after the change takes effect. Look closely at your sales statements and see whether any overweight deductions show up. If something looks wrong, check your package weights and contact support with your records in hand.

The bottom line

Starting October 26, heavy bundles carry a price tag for sellers, from $5 up to the full cost of postage. Weigh your packages, learn the weight breaks, and do the math before you hit ship. A few extra minutes at the scale could save you a lot more than a few dollars.