USPS now requires box dimensions with every commercial parcel label
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USPS now requires box dimensions with every commercial parcel label
Since July 12, 2026, the shipping data a label service sends USPS for commercial Priority Mail Express, Priority Mail, Ground Advantage and Parcel Select must include each parcel's accurate length, width and height. Flat Rate and USPS Returns pieces are exempt. USPS put off charging for missing or wrong dimensions until a second phase, tentatively early 2027; until then, the $3.00 Dimension Noncompliance Fee for missing or wrong dimensions still applies only to parcels over 1 cubic foot or 22 in. long.
Your net on a $10 / $25 / $50 sale: n/a / n/a / n/a
A rule with no new fee yet for most parcels. Once phase two starts, a missing or wrong dimension could cost $3.00 per parcel (Notice 123). Enter real box sizes when you buy labels.
Source: USPS final rule, Federal Register, Mar 31, 2026 · verified
Cite this
The Reseller Index change tracker, "USPS now requires box dimensions with every commercial parcel label," https://resellerindex.com/changes/usps/2026-07-12-usps-parcel-dimensions-required/, verified Oct 14, 2026. Free to reuse with a link (CC BY 4.0).
More USPS changes
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- USPS holiday ship-by dates: Ground Advantage Dec. 17, Priority Mail Dec. 18
- USPS may raise stamp and Media Mail prices in January 2027, by up to 2.105% on average per class
- Light parcels hit hardest: commercial Ground Advantage drops its ounce tiers
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