Christmas Card Mailing Checklist

Use this checklist in two passes: once when you set up your card-writing session, and once at the mailbox. It covers supplies, addressing, postage, and timing — including the 2026 USPS dates — so a whole stack of cards can go out in one trip without returns or surcharges.

Before you write a single card

• ☐ Mailing list updated — new addresses added, moves and changes from last year corrected
• ☐ Cards and envelopes on hand, with a few extras for mistakes and late additions
• ☐ Stamps on hand — a book of 20 Forever stamps is $16.40 at the current 82-cent price
• ☐ A pen that writes smoothly and does not bleed through card stock
• ☐ Return address labels or a stamp, if you use them
• ☐ A kitchen scale, if any envelopes will carry photos, gift cards, or newsletters
• ☐ Your mailing deadline written down (see the timing checklist below)

Writing and addressing

• ☐ Each card signed — and ink fully dry before it goes into the envelope
• ☐ Enclosures placed inside the card, lying flat
• ☐ Recipient name spelled the way the recipient spells it
• ☐ Delivery address complete: name, street address or PO Box, apartment/suite if any, city, state, ZIP Code
• ☐ ZIP Codes checked — a wrong ZIP is the most common cause of late cards
• ☐ Return address in the upper-left corner of every envelope
• ☐ Address written or printed legibly in dark ink
• ☐ Bottom edge of each envelope left clear for the USPS barcode

Not sure about formats or forms of address? See how to address Christmas cards properly and how to prepare Christmas cards for mailing.

Postage check — the step everyone skips

• ☐ Standard rectangular envelope, up to 1 oz → one Forever stamp ($0.82)
• ☐ Heavier envelopes weighed: 2 oz = $1.11 · 3 oz = $1.40 · 3.5 oz = $1.69 (29¢ per additional ounce)
• ☐ Square or unusually shaped envelopes → postage starts at $1.31, not $0.82
• ☐ Thick, rigid, or lumpy envelopes → treat as nonmachinable and add postage, or ask at the Post Office counter
• ☐ Oversized envelopes (over 11-1/2″ long, 6-1/8″ high, or 1/4″ thick) → large-envelope rates start at $1.69
• ☐ International cards → $1.75 for a 1 oz letter
• ☐ Stamps placed in the upper-right corner, side by side if more than one

Our detailed explainer, how many stamps do Christmas cards need, works through the edge cases.

Sealing and drop-off

• ☐ Every envelope sealed along the full flap
• ☐ Cards sorted: anything nonmachinable, overweight, or uncertain set aside for the Post Office counter instead of the collection box
• ☐ Collection box pickup time checked — mail dropped after the last pickup moves the next business day
• ☐ Fragile or valuable enclosures (gift cards, cash) reconsidered — consider a tracked package service instead

Quick reference: 2026 postage at a glance

Piece	Postage
Standard card or letter, 1 oz	$0.82
Each additional ounce (letters)	+$0.29
Postcard	$0.65
Square or nonmachinable envelope, 1 oz	From $1.31
Large envelope (flat), 1 oz	From $1.69
International letter, 1 oz	$1.75
Book of 20 Forever stamps	$16.40

A worked run-through: 40 cards in one Saturday session

Here is the checklist above, applied to a real stack: 40 cards, of which 38 are standard rectangular cards and 2 are square.

1. Set up (10 minutes). Cards, envelopes, stamps, pen, address list, and the kitchen scale on the table. The two square cards are separated immediately — they are the only pieces that will need unusual postage.
2. Sign and address (about an hour). Cards signed in one pass, envelopes addressed in a second pass, return address on every envelope, enclosures kept flat inside the cards.
3. Weigh one sample. A finished standard card with its photo insert weighs 0.9 oz — under the one-ounce line, so every standard card takes a single Forever stamp. No need to weigh all 38; weigh one from each design if the stack mixes types.
4. Postage. 38 standard cards × $0.82 = $31.16, plus 2 square cards × $1.31 = $2.62. Total postage: $33.78. Two books of 20 Forever stamps cover the standard cards; the square cards each need an extra 49 cents in stamps alongside a Forever stamp.
5. Final check and drop-off. Flaps sealed, square cards set aside for the Post Office counter rather than the collection box, everything else dropped before the box’s posted last pickup.

The checklist run from Atlanta: 52 cards, four kinds of postage

Here is the same checklist applied to a Decatur household’s stack of 52 cards, sorted on the dining table into piles before a single stamp is used: 45 standard domestic cards (one of them headed to Honolulu), 4 square cards, and 3 international cards for London and Toronto.

1. Sort first (five minutes). The special-destinations checklist above does the work: an international pile, a square pile, and the Honolulu card flagged inside the standard pile for the earliest mailing day.
2. Weigh one sample per pile. The standard card with its photo insert reads 0.9 oz — safely one ounce. The square card reads 0.8 oz, but its price is $1.31 anyway: shape, not weight, sets its postage.
3. Postage, pile by pile. 45 standard cards × $0.82 = $36.90; 4 square cards × $1.31 = $5.24; 3 international cards × $1.75 = $5.25. Total: $47.39.
4. Mail in checklist order. The international pile goes out November 30. The Honolulu and square cards follow on December 3. The remaining standard cards mail December 6 — every pile out ahead of its own deadline, with the December 17 backstop never in play.

The Atlanta detail worth copying is the piles themselves. Most checklist failures happen when an exception is discovered one envelope at a time, mid-stack, with the stamps already on. Sorting the stack into postage piles first — on a table in Decatur or anywhere else — turns four different rules into four small, finished jobs.

Checklist: special destinations

• ☐ International cards separated and mailed first — $1.75 (one Global Forever stamp) for a 1 oz letter
• ☐ Military (APO/FPO/DPO) pieces mailed in November, ahead of every domestic batch
• ☐ Alaska, Hawaii, Puerto Rico, and territory cards given extra lead time — Ground Advantage to those destinations has a recommended date of December 16 and transit of ten days or more
• ☐ Hanukkah cards (December 4–12, 2026) mailed by late November, not with the mid-December batch
• ☐ Postcards checked: standard postcard size mails for $0.65; an oversized postcard does not

If something goes wrong

• ☐ A card comes back to you: Check the yellow return label for the reason — usually an incomplete or outdated address. Correct it, put it in a fresh envelope with new postage, and re-mail; note the fix on your list for next year.
• ☐ You realize postage was short: If the card is still in your hands, add the difference in stamps next to the first. If it is already mailed, USPS may return it or deliver it postage-due; there is no way to top it up in transit.
• ☐ You missed December 17: Switch to Priority Mail (recommended through December 18) or Priority Mail Express (through December 19), hand-deliver locally, or convert the card to a New Year’s greeting.
• ☐ Weather is disrupting your region: Mail earlier rather than hoping routes clear; December storms are exactly why the comfortable window is December 1–10.

Timing checklist for 2026

• ☐ Hanukkah cards (Dec. 4–12) mailed by late November
• ☐ International and military cards mailed by early December (USPS recommends December 9 for military First-Class/Priority Mail and international package services)
• ☐ Domestic cards mailed between December 1 and 10
• ☐ Absolute backstop: Thursday, December 17 — the last USPS recommended First-Class Mail date for expected delivery before December 25
• ☐ After December 17: switch late cards to Priority Mail (by Dec. 18) or make them New Year’s cards
• ☐ Thank-you notes added to the January list

The three failures this checklist catches most often

In practice, almost every returned or surcharged card fails one of three checks above. The first is the one-ounce assumption: a card plus a photo plus a gift card quietly becomes a two-ounce piece, and a single Forever stamp leaves it 29 cents short. The scale check takes ten seconds. The second is the shape surprise: a square or rigid envelope mailed at $0.82 is missing the $0.49 nonmachinable surcharge from the start. The third is the stale address: roughly one household in ten on a typical family list has moved since last December, and an outdated address is the one error no amount of correct postage can fix. Work the list top to bottom and all three are caught before the envelope is sealed — which is the only moment they are cheap to fix.

Keep this page with your cards and work through it once per batch — checking ten envelopes against the list takes minutes and catches the errors that return or delay cards. Print it, pin it above your writing spot for the season, and next year’s mailing starts from a list that is already correct. For the complete season overview, see our holiday mailing guides.

Frequently Asked Questions

Do I have to weigh every envelope?

No. Weigh one finished sample of each card design — if the sample is under an ounce, every identical envelope is too. Only unusual pieces (photos, gift cards, newsletters) need individual attention.

What happens if I mail a card with too little postage?

USPS may return it to you or deliver it with postage due from the recipient. There is no way to add postage once a piece is in transit — which is why the postage check sits before the drop-off check on this list.

Are return address labels acceptable, or must I write the return address by hand?

Labels and return-address stamps are fine. What matters is placement — the upper-left corner — and legibility. The delivery address carries the stricter standard: write or print it clearly in dark ink, because sorting equipment reads it first.

Sources

The rates, dates, and rules in this guide were checked against these official USPS pages:

• USPS: First-Class Mail
• USPS: Holiday Shipping Dates
• USPS News Release (Sep 22, 2026): Recommended 2026 Holiday Mailing and Shipping Dates

Related Guides

• Holiday mailing guides — the full hub for this series, covering timelines, preparation, and etiquette.
• How to prepare Christmas cards for mailing — the step-by-step mechanics behind every item on this checklist.
• How many stamps do Christmas cards need? — the postage edge cases worked through in full.
• 2026 holiday mailing calendar — the dates behind the timing checklist.