{"id":247278,"date":"2023-05-18T00:00:00","date_gmt":"2023-05-18T00:00:00","guid":{"rendered":"https:\/\/www.stamps.com\/?p=247278"},"modified":"2025-11-13T15:17:29","modified_gmt":"2025-11-13T15:17:29","slug":"post-billing-adjustments","status":"publish","type":"post","link":"https:\/\/www.stamps.com\/article\/post-billing-adjustments\/","title":{"rendered":"How to Avoid Post-Billing Adjustments"},"content":{"rendered":"\n
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Additional shipping costs can be stressful, especially when charged after your package has shipped. Carrier adjustments can add up, but fortunately, you can work to avoid them. Learn where to find adjustments, how carriers calculate these fees, and what you can do to prevent fees<\/p>\n\n\n\n

What are carrier adjustments?<\/h2>\n\n\n\n

Adjustments<\/a> are extra fees or credits added to your shipping cost after a carrier processes a package. The additional charges are calculated by subtracting the amount of postage paid for a shipment from the shipping costs that should have been paid. For example, you may have paid $10 in shipping costs. However, your shipment reaches USPS, and they find the shipping costs should\u2019ve been $13. Your adjustment charge would then be $3. <\/p>\n\n\n\n

Where to find adjustments<\/h2>\n\n\n\n

USPS and UPS adjustments can be found in your Stamps.com history.<\/a> Keep in mind that there\u2019s a delay between when an adjustment is given by a carrier and when the adjustment is shown in your account. To view adjustments, follow the steps below. <\/p>\n\n\n\n

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  1. Click on the History tab<\/strong> to view recent shipments. If a shipment was given an adjustment, it will be listed in the Adj. Amount column. <\/strong> Once you click on the shipment, you\u2019ll see more information on why the adjustment was issued. <\/li>\n<\/ol>\n\n\n\n
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    1. To find these additional details, select the shipment to open the Order Details panel. <\/strong>In the example below, the adjustment was issued because incorrect dimensions were entered when the label was created. <\/li>\n<\/ol>\n\n\n\n
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      USPS adjustments <\/h2>\n\n\n\n

      Some of the most common reasons for adjustments include entering incorrect dimensions and weight as well as using\/entering the incorrect packaging. As a reminder, the maximum weight for Priority Mail Flat Rate\u00ae\u00a0Boxes<\/a> (all sizes) is 70 pounds. Additionally, weight is rounded up. For example, if your shipment weighs 70.2 pounds, it will be rounded up to the nearest pound, making it too heavy for the service. Dimensions for Priority Mail Flat Rate\u00ae\u00a0Boxes<\/a> will need to be entered when creating your label as well.\u00a0<\/p>\n\n\n\n

      Non-machinable surcharges <\/h3>\n\n\n\n

      Another type of surcharge given by USPS is a non-machine surcharge.<\/a> This surcharge is applied to pieces of mail and packages that aren\u2019t able to be automatically sorted through USPS machines. Reasons a non-machinable surcharge might be issued include illegible addresses or non-traditional sizes that require these items to be manually sorted or assessed. <\/p>\n\n\n\n

      UPS adjustments <\/h2>\n\n\n\n

      UPS\u00ae <\/sup>shipments can be up to 150 pounds and have a maximum length of 108.” However, if your package is over 50 pounds, it\u2019s subject to UPS Additional Handling fees. UPS Additional Handling charges are extra fees applied to your shipping cost for shipments that need different handling. Some of these include: <\/p>\n\n\n\n