What if I ship a book and a non-media item together by Media Mail?
USPS's rules: Whole box pays more
The whole package pays the higher price: when mail of a higher price is enclosed with mail of a lower price, USPS charges the entire piece at the higher price, unless the extra item is a permitted enclosure. USPS's service page warns that if you include anything that isn't allowed, you or your recipient pay higher postage, and the DMM adds that concealing higher-priced mail can bring a fine under 18 U.S.C. 1723. Permitted enclosures include an invoice, a personal message or bill, and loose printed matter mailable as USPS Marketing Mail, and the qualifying items have to outweigh them.
Rates verified on
The rule, in USPS's words
Quoted from the official pages linked below each quote, checked Oct 19, 2026.
“When mail of a higher price is enclosed with mail of a lower price, the postage on the entire piece is charged at the higher price, except under 9.2 through 9.6.”
“Mailers are subject to a fine if they conceal letters or other mail of a higher price in mail sent at a lower price without paying the correct postage on the enclosures (18 USC 1723).”
“If you try to include anything that's not allowed, you (or your recipient) will have to pay higher postage rates.”
“The grouping that weighs the most is considered to be the "host piece" and the mailpiece is classified according to the classification of the items in the grouping.”
What it costs to ship
Media Mail costs the same to every US address, with a 1 lb minimum ($4.39) and any fraction of a pound rounded up. Ground Advantage, USPS's ground package service with tracking included, is priced by weight and zone: online is USPS's commercial price for labels bought online, and the counter price is retail.
| Package | Media Mail (if it qualified) | Ground Advantage online, Zones 1-9 | Ground Advantage at the counter, Zones 1-9 |
|---|---|---|---|
| 1 lb | $4.39 | $8.01 to $11.22 | $10.05 to $13.65 |
| 2 lb | $5.13 | $8.39 to $13.42 | $11.30 to $19.80 |
| 3 lb | $5.86 | $9.04 to $16.30 | $11.80 to $23.15 |
| 5 lb | $7.34 | $10.35 to $20.24 | $13.75 to $27.45 |
Worked examples
- 2 lb of DVDs and an 8 oz video game: one box (2 lb 8 oz, the 3 lb price) costs $9.04 to $16.30 online by Ground Advantage; two packages cost $12.46 to $14.08 (Media Mail $5.13 plus Ground Advantage $7.33 to $8.95).
- 3 lb of books and a 4 oz T-shirt: one Ground Advantage box at the 4 lb price is $9.93 to $19.06 online; split, $13.19 to $14.81.
- 3 lb of books and a 2 oz paper flyer: the flyer is a permitted enclosure, so one Media Mail box at the 4 lb price, $6.60.
Every weight from 1 to 70 lb: Media Mail rates · Ground Advantage rates
Edge cases
- The host-piece test: if the non-qualifying items weigh more than the qualifying ones, the package isn't Media Mail at all (PS-303).
- Books, CDs, DVDs and other qualifying items mix freely in one Media Mail box.
- A separate piece of First-Class Mail or USPS Marketing Mail can ride inside if its own postage is paid on the outside and the parcel is marked "First-Class Mail Enclosed" or "USPS Marketing Mail Enclosed" (DMM 703.9.4, 9.7.3, 9.10.1).
- USPS lets mailers combine separate pieces of Media Mail and Bound Printed Matter for the same addressee in one regular machinable parcel, each with its own postage on the outside and an endorsement such as "Bound Printed Matter Enclosed"; without the endorsement, or if it isn't machinable, it pays Ground Advantage commercial prices (DMM 703.9.6.1, 9.12).
What to do
- Price both ways: one Ground Advantage box, or Media Mail for the media plus a separate label for the rest.
- Never hide a non-qualifying item in a Media Mail box; USPS may open any Media Mail package (inspection).
Sources
Rates verified on from each official page below.
- USPS Domestic Mail Manual 703: military mail and mixed classes
- USPS: Mail and shipping services (Media Mail eligibility, Ground Advantage, First-Class Mail)
- USPS Customer Support Ruling PS-303: Determining the Classification of Mail, Host Piece Test (updated July 2018)
- USPS Notice 123: price list (effective Oct 4, 2026), Media Mail and Ground Advantage prices
- USPS: temporary price change for 2026 holiday shipping (Aug 25, 2026)
Free 1-page Reseller Cheat Sheet: fees on 8 platforms, Media Mail and stamp prices
What each platform takes from a $10, $25 and $50 sale, Media Mail 1-10 lb, Ground Advantage to Zones 1, 5 and 8, and the Forever stamp, on one printable page. The link appears as soon as you sign up.