Holiday mailing in the United States comes down to four things: a realistic timeline, the right postage, a correctly prepared envelope, and a mailing date that leaves room for December delays. This guide walks through all four, using the U.S. Postal Service’s published 2026 dates and current postage prices, so you can plan a card or package mailing once and stop worrying about it.
If you only need the short version: most Christmas cards should be in the mail by the second week of December, a standard card needs one Forever stamp (82 cents), and the Postal Service’s last recommended mailing date for First-Class Mail in 2026 is Thursday, December 17 for expected delivery before December 25. Everything below explains how those numbers work and when you should aim earlier.
Key Takeaways
- Mail most Christmas cards between December 1 and 10; the last USPS recommended First-Class date for 2026 is Thursday, December 17 — a backstop, not a target.
- A standard card needs one Forever stamp ($0.82); square or rigid envelopes start at $1.31, and each additional ounce adds $0.29.
- International, military, and Hanukkah mail runs on earlier clocks: the key international and military dates fall on December 9 (military Ground Advantage: November 4), and Hanukkah runs December 4–12, 2026.
- Weigh anything with an enclosure, use a complete address plus your return address, and keep envelopes rectangular, flat, and no thicker than 1/4 inch.
- Buy genuine stamps before you start addressing — a book of 20 Forever stamps is $16.40 at the current price.
The 2026 holiday mailing timeline at a glance
Working backward from Christmas Day is the simplest way to plan. These are the milestones that matter for 2026:
| When | What to do |
|---|---|
| Late October – early November | Finalize your mailing list, order cards and stamps, and confirm addresses. |
| Wednesday, November 4 | USPS recommended send-by date for USPS Ground Advantage packages to APO/FPO/DPO military addresses. |
| Thursday, November 26 | Thanksgiving Day. Post Offices are closed and there is no mail delivery. |
| December 4–12 | Hanukkah. USPS notes it falls earlier this year, so Hanukkah cards and gifts need to move in late November. |
| Wednesday, December 9 | USPS recommended send-by date for First-Class Mail and Priority Mail to military addresses, and for First-Class Package International and Priority Mail International service. |
| Wednesday, December 16 | USPS recommended send-by date for Priority Mail Express International. |
| Thursday, December 17 | Last USPS recommended date for First-Class Mail and USPS Ground Advantage in the contiguous U.S. for expected delivery before December 25. |
| Friday, December 18 | Last USPS recommended date for Priority Mail. |
| Saturday, December 19 | Last USPS recommended date for Priority Mail Express. |
| Friday, December 25 | Christmas Day. Post Offices are closed and there is no regular mail delivery. |
These dates come from the Postal Service’s news release of September 22, 2026 and its 2026 holiday shipping dates page. For a week-by-week planning view, see our 2026 holiday mailing calendar.
Recommended dates are not guarantees
USPS calls these “recommended send-by dates for expected delivery,” and the wording matters. Delivery depends on where a piece enters the mail, where it is going, and the time of day it is accepted. A card mailed locally on December 17 will very likely arrive before Christmas; a card crossing the country in the middle of the December peak has less margin. The Postal Service expects mail and package volume to rise about 40 percent between October 1 and December 31, which is why experienced mailers treat the official dates as a floor, not a target. Our editorial recommendation: use December 17 as your absolute backstop and plan to mail most cards between December 1 and December 10.
How much postage a holiday card needs
Postage prices below are the current USPS prices in effect since July 12, 2026.
| What you are mailing | Postage |
|---|---|
| Standard rectangular card or letter, up to 1 oz | $0.82 — one Forever stamp |
| Letter, 2 oz | $1.11 |
| Letter, 3 oz | $1.40 |
| Letter, 3.5 oz (maximum letter weight) | $1.69 |
| Postcard | $0.65 |
| Square or unusually shaped envelope, up to 1 oz | Starts at $1.31 |
| Large envelope (flat), 1 oz | Starts at $1.69 |
| International letter, 1 oz | $1.75 |
A Forever stamp always covers the one-ounce First-Class letter rate, no matter when you bought it — stamps you purchased at 78 cents before the July 2026 increase still mail a one-ounce letter today. Each additional ounce on a letter costs 29 cents. Square envelopes cost more because they cannot run through USPS sorting machines and carry a nonmachinable surcharge; USPS prices square, oversized, or unusually shaped envelopes starting at $1.31.
Two details catch people out every year:
- Weight: A card with a photo insert, a gift card, or several sheets of letter paper can pass one ounce without looking heavy. Weigh the sealed envelope if it feels substantial.
- Shape and thickness: Envelopes that are square, lumpy, rigid, or thicker than 1/4 inch may need extra postage even at one ounce.
For the full stamp rules, see what a Forever stamp is and how it works and our guide to how many stamps Christmas cards need.
Preparing cards so they move without problems
Most returned or delayed cards fail on simple mechanics. Before anything goes in the mailbox:
- Use a complete, current address — recipient name, street address or PO Box, city, state, and ZIP Code. Add your return address in the upper-left corner of the envelope (or on the back flap for formal cards).
- Keep the envelope letter-sized. Letters can be up to 11-1/2 inches long, 6-1/8 inches high, and 1/4 inch thick, and must be at least 5 inches long and 3-1/2 inches high. Anything larger is priced as a large envelope.
- Seal and protect the contents. Tuck enclosures so the envelope stays flat and even; avoid coins, keys, or bulky items in a card envelope.
- Put the stamp in the upper-right corner and write legibly, in ink that will not smear when damp.
Our step-by-step article on how to prepare Christmas cards for mailing covers addressing formats, enclosures, and drop-off options in detail, and how to address an envelope in the USA shows the exact layout USPS prefers.
Cards, letters, and packages are on different clocks
Cards and letters travel as First-Class Mail, which normally delivers in one to five business days — but December is not normal. Gifts travel as packages, and package services have their own dates in the table above. If a gift matters, Ground Advantage is the budget option and Priority Mail the faster one; both should be mailed well ahead of their recommended dates when the destination is Alaska, Hawaii, Puerto Rico, or a U.S. territory. USPS gives Ground Advantage shipments between the mainland and those destinations a service expectation of 10 days or more, so early December is the practical mailing window for packages headed offshore.
Mailing to military and international addresses
These are the earliest dates on the calendar, and they surprise people every year. For APO/FPO/DPO military addresses, USPS recommends November 4 for Ground Advantage and December 9 for First-Class Mail and Priority Mail. For international destinations, the recommended date is December 9 for First-Class Package International and Priority Mail International, and December 16 for Priority Mail Express International. A one-ounce international letter costs $1.75. If friends and family abroad are on your card list, our advice is to treat the first week of December as your mailing deadline for international cards, and earlier still for packages.
What a typical card mailing costs in 2026
Postage is usually the smallest part of a holiday mailing, but the format choices above change it quickly. At current prices:
- 50 standard cards with Forever stamps: 50 × $0.82 = $41.00
- 50 square cards at the nonmachinable rate: 50 × $1.31 = $65.50
- 100 standard cards, 10 of them international: 90 × $0.82 + 10 × $1.75 = $91.30
- Cards at 2 ounces (photo plus a letter sheet): $1.11 each instead of $0.82
If you are also shipping gifts, note that USPS applies temporary price adjustments to some package products during the peak season (in 2026 they run for shipping products from October into mid-January). Those adjustments do not change First-Class letter postage — a Forever stamp is 82 cents all season. Typical transit times USPS cites for the season are 2–5 business days for Ground Advantage, 2–3 for Priority Mail, and 1–3 for Priority Mail Express, which is another reason packages should be mailed ahead of their send-by dates rather than on them.
The mistakes that cause most holiday mail problems
- Mailing the whole list on the deadline day. December 17 is a recommended date for expected delivery, not a promise; the season’s volume makes delays more likely, not less.
- Guessing the ZIP Code. A wrong ZIP routes a card to the wrong facility first. It usually still arrives — late.
- Assuming a pretty envelope mails for 82 cents. Square, rigid, lumpy, or oversized envelopes cost more, and the difference is charged per piece.
- Skipping the return address. Without one, an undeliverable card cannot come back to you, and you will never know it missed.
- Forgetting the early lists. International, military, and Hanukkah mailings all come due weeks before the domestic Christmas dates.
Where to buy stamps
Buy stamps before you start addressing — running out halfway through a list is the most common self-inflicted delay. A book of 20 Forever stamps costs $16.40 at the current 82-cent price. You can buy postage through any of these channels:
Approved Buying Destinations
- USPS official website (usps.com and the USPS Postal Store)
- Amazon
- Costco
- theuspsstamps.com
- foreverstampstore.com
- USbulkstamps.com
- FlagStampShop.com
Wherever you buy, check that you are getting genuine U.S. postage; deeply discounted “Forever stamps” from unknown sellers are a recurring counterfeit problem. Our stamp buying guide explains how to compare channels safely.
A worked example: one household’s mailing, start to finish
Here is how the pieces above fit together for a typical list. The Rivera family sends 65 cards: 57 standard rectangular cards to relatives in the United States, 3 square cards (bought for their design, not their postage), and 5 cards to family overseas. Their postage, at current prices:
- 57 standard cards × $0.82 = $46.74
- 3 square cards × $1.31 = $3.93
- 5 international letters × $1.75 = $8.75
- Total postage: $59.42 — four books of 20 Forever stamps cover the domestic cards, with the square cards’ extra 49 cents each added in additional postage, and five Global Forever stamps cover the overseas ones.
Their schedule: they confirm addresses over the Thanksgiving weekend and write cards in two evenings. The five international cards and two cards to cousins in Hawaii go out first, in the first days of December — Ground Advantage packages to Alaska, Hawaii, and the territories carry a USPS recommended date of December 16 and a service expectation of ten days or more, so anything headed offshore leaves early. The 57 domestic cards are mailed on December 5, comfortably inside the December 1–10 window. One card is always forgotten — a neighbor added on December 14 — and it still makes the December 17 backstop with days to spare. Nothing in this plan is heroic; it works because the early, awkward pieces (international, square, offshore) were identified before the stamps were bought, not after.
The same plan, mailed from Atlanta
This site is edited from Atlanta, Georgia, so here is the same plan run from a Midtown kitchen table. The Patterson family — return address 855 Peachtree St NE, Atlanta, GA 30308 — sends 90 cards: grandparents in Savannah, cousins in Charlotte, a brother in Chicago, a daughter in Seattle, four friends overseas, and the rest scattered across metro Atlanta and the Southeast.
Their list breaks into the same three clocks as the Rivera example above. The four international cards take one Global Forever stamp each ($1.75). Two of the Savannah cards are square — chosen for the design, not the postage — and start at $1.31. Everything else is a standard rectangular card at $0.82:
- 84 standard cards × $0.82 = $68.88
- 2 square cards × $1.31 = $2.62
- 4 international cards × $1.75 = $7.00
- Total postage: $78.50
Stamps are bought in November, before the list is final: five books of 20 Forever stamps ($16.40 a book) cover the domestic cards with spares left over, and the four Global Forever stamps are bought at the same time, so the international wave never waits on a purchase.
The mailing itself runs in waves matched to distance. The Seattle and Chicago cards and the four international pieces go out on Wednesday, December 2 — cross-country and overseas mail gets the earliest date, because December transit on those routes is the least predictable. The Savannah and Charlotte cards follow on December 5. The metro Atlanta cards — Decatur, Marietta, Sandy Springs — are mailed on December 9; in our experience, cards mailed within Georgia move quickly, often arriving in a couple of days, though that is an observation from years of mailing here, not a USPS promise, and the December 17 recommended date remains the backstop for all of it.
One detail the Pattersons get right: every envelope carries the Midtown return address, including the one addressed across town:
MS ANITA COLE
317 W TRINITY PL
DECATUR GA 30030
(The address above is an illustrative example.) A card to Decatur feels too local to lose — until it turns out to be the one with the transposed house number. The return address is what brings it back in time to fix it.
A simple plan that works
Put together, a low-stress 2026 holiday mailing looks like this: list and addresses done by mid-November, cards written and stamped by the first weekend of December, domestic cards mailed between December 1 and 10, packages and international pieces mailed earlier, and December 17 kept as the last-resort date rather than the plan. You can browse the rest of our holiday mailing guides for checklists, family and business timelines, and etiquette help.
Frequently Asked Questions
Can I use Forever stamps I bought in earlier years?
Yes. A Forever stamp is worth the current one-ounce First-Class letter rate — $0.82 today — regardless of what you paid for it. Stamps bought before the July 12, 2026 price change need no additional postage for a standard one-ounce letter. Our guide to using older Forever stamps covers the details.
How much postage does a holiday postcard need?
A standard postcard costs $0.65. Postcards skip the envelope entirely, which makes them a good option for a short greeting — just confirm your card stock is postcard-sized, because an oversized postcard is priced as a letter or a large envelope instead.
My card is square. What postage does it need?
A one-ounce square envelope starts at $1.31: the $0.82 letter rate plus the $0.49 nonmachinable surcharge. One Forever stamp alone is not enough — add 49 cents in additional stamps. Do greeting cards need extra postage? explains which other shapes and enclosures trigger the surcharge.
Sources
The rates, dates, and rules in this guide were checked against these official USPS pages:
- USPS: Holiday Shipping Dates
- USPS News Release (Sep 22, 2026): Recommended 2026 Holiday Mailing and Shipping Dates
- USPS: First-Class Mail
- USPS News Release (Oct 22, 2026): Prepared to Deliver for the 2026 Holiday Season
Related Guides
- Holiday mailing guides — the full hub for this series, covering timelines, preparation, and etiquette.
- 2026 holiday mailing calendar — every official and planning date for the season in one view.
- Christmas card mailing checklist — the two-pass checklist to work through at the table and at the mailbox.
- How to prepare Christmas cards for mailing — the step-by-step envelope mechanics behind this guide.
About the author — James Miller is a retired U.S. Postal Service employee whose career was in commercial mail, where he helped businesses prepare and send large-volume mailings. He edits Buy Holiday Stamps from Atlanta, Georgia. More about James and this site.
Last fact-checked against official USPS sources: November 2, 2026.