Wedding Thank-You Postcards: Etiquette, Cost and Size

Yes, postcards are fine for wedding thank-you notes, provided each one thanks the guest by name and names what they gave. A wedding thank-you postcard is a single card, usually 4x6, with your photo or a design on the front and your note, the guest's address and the postage on the back. It costs less to mail than a folded card and puts your wedding photo in front of every guest. It isn't private, though, and a few families will still expect an envelope.

This post covers the format: when a postcard works, what it costs, and what fits on one. For the words themselves, see what to write in a wedding thank-you note. For deadlines and tricky cases, see wedding thank-you etiquette.

Disclosure: ShipNote is our product and it appears below. USPS prices and standards and Minted's card prices were checked on their own pages on September 29, 2026.

Are postcards OK for wedding thank-you notes?

Yes. What a guest judges is the message, not the paper it arrives on. A postcard that says "Thank you for the cast-iron skillet, Aunt Rose. We've already burned our first batch of cornbread in it" is a real thank-you. A folded letterpress card that says "Thank you for your generous gift" is not.

Pen isn't required either. A printed note that names the guest and the gift passes; what fails is the same sentence sent to all 100 guests. There's a fuller answer in do thank-you cards have to be handwritten?

Where the format does matter is covered in the next two sections.

When does a postcard beat a folded card?

A postcard is the better choice when:

• You want the photo seen. The front of a postcard is the whole card. A photo from the ceremony or first dance faces the guest the moment it comes out of the mailbox.
• The list is long. Postcards need no envelopes to address, stuff or seal, and postage is cheaper for each card. For 80 or 100 guests, that saves hours as well as money.
• The note is short. A good wedding thank-you runs three to five sentences. A postcard back holds that comfortably, and a folded card invites padding.
• You're mailing to a wide circle. Coworkers, your parents' friends and the guests who sent a gift from the registry get a warm, specific card that doesn't read as a form letter.

When is a folded card the better choice?

Be honest with yourself about these three:

• The note is private. Anyone who handles a postcard can read it, from the mail carrier to the guest's roommate. For a large cash gift, a check, or a note that touches on something personal, like a grandparent who couldn't travel or a hard year in the family, use an envelope.
• Your circle is formal. Some families, and some older guests, see a postcard as casual correspondence. If your mother is going to hear about it from her sister, a folded card for that part of the list costs you an extra 17 cents of postage and saves a conversation.
• You want to write a lot. A folded card gives you three panels. If you have a paragraph to say to your maid of honor, a postcard will cramp it.

You don't have to pick one format for everyone. A common split is postcards for most of the list and a handful of folded, handwritten cards for the wedding party, grandparents and the most generous gifts.

How much do wedding thank-you postcards cost with postage?

$2.45 a card for 45 Minted thank-you postcards once the stamp is added, $3.51 for its folded card, and ShipNote is $1.99 a card on 10 or more, with postage and mailing included. Postage is part of the gap between a postcard and a folded card: USPS charges $0.65 for a postcard and $0.82 for a 1-ounce letter as of September 29, 2026. Minted figures are before any Mail It For Me fee.

Swipe the table sideways to see every column →

At Minted's list prices, both Minted formats we priced cost more per card than ShipNote's $1.99 once postage is added, on orders of 25 to 100, and a ShipNote card is also addressed and mailed for you, with postage included. Before the stamp, the Minted figures are $2.36, $1.80 and $1.41 a postcard, and $3.24, $2.69 and $2.24 a folded card, for the first design on each of Minted's pages. Minted was advertising a 15% wedding promotion when we checked, which would lower its figures; the table uses list prices. Whether Minted will mail the cards for you depends on your order, which we cover in does Minted mail cards for you?

For 100 guests, postage alone is $65 in postcard stamps against $82 in letter stamps. A square envelope adds a $0.49 nonmachinable surcharge, which makes $1.31 a card, or $131 for the list. The stamp calculator totals any mix of formats, and the cheapest way to mail thank-you cards prices more services side by side.

What size should a wedding thank-you postcard be?

4x6 or smaller. USPS's mailing standards give the postcard price only to cards between 3.5x5 and 4.25x6 inches, and between 0.007 and 0.016 inches thick. USPS says ineligible cards "are subject to letter-size pricing", so a 5x7 flat postcard pays $0.82, the same as a card in an envelope. If you're buying postcards to save on postage, check the size before you order.

On a 4x6, the back isn't all yours. Postage, the guest's address, your return address and the USPS barcode take the right side and the bottom strip, and your note gets the upper-left block. That space holds a three-to-five-sentence note in a readable size, and it's too small for a long letter.

A few things that help it fit:

• Say the gift once, specifically. "The stand mixer" does more work than a sentence about how thoughtful the gift was.
• Drop the opening line. "We hope this note finds you well" costs a line and says nothing.
• Sign with first names. "Love, Sam and Priya" is enough.

On ShipNote, the editor sizes your note to the space as you type. If a note gets too long to print clearly, it stops you with "trim a sentence or two" rather than printing it too small to read.

What goes on the front of a photo postcard?

One strong photo, and very little else. A photo postcard thank-you works because the picture carries the warmth, so let it fill the card. Pick a shot where both of you are clearly visible and it's obviously your wedding, like the ceremony, the exit, or a portrait from the photographer. Candid dance-floor shots look great on a phone and often turn muddy in print.

If you add text, keep it to your names and the date, or a short "Thank you". The personal part belongs on the back.

ShipNote's wedding photo designs are Classic, Polaroid, Magazine Cover, Split and Framed, plus a blank card that prints your own photo or artwork edge to edge, in portrait or landscape, and collages (Collage, Duo, Triptych, Filmstrip and Grid) that take two to four photos. If you'd rather not use a photo, there are illustrated wedding designs such as Watercolor, Monogram, Art Deco and Botanical.

How do you send 100 wedding thank-you postcards without losing a weekend?

Addressing and mailing take most of the hours, and the note takes the rest. Here is how ShipNote handles the first part so you can spend your time on the second:

1. Pick a design and add your photo. One front for the whole batch.
2. Write one note. Use [RECIPIENT] and [GIFT_NAME] where the guest's name and gift go, and each card fills them in from that guest's row. Any single card can be edited before the batch goes out, which is where you add a line for the people who deserve more than the template.
3. Paste your list. Copy your registry's purchase page from Amazon, Zola, Babylist, Target or The Knot, or paste a spreadsheet or your gift notes. AI pulls out each guest's name, their gift and any address the registry shares. US addresses only.
4. Fill the gaps. Rows with a name but no address are flagged when you press Next: Review, and each one offers "Don't have their address? Request it with a link", which you send to the guest to fill in. A row without an address holds up checkout, so remove those rows once the links are out and mail the rest; you get an email as each address comes in. If a lot are missing, see what to do when you don't have every address.
5. Check out. Addresses are verified before checkout. Cards are mailed the next business day with First-Class postage and arrive in 4–7 business days. There is no account to create.

The note prints in the font you choose, including a handwriting-style one, and your return address prints on the back. A small "sent via shipnote.co" mark prints in the corner unless you remove it for 10 cents a card. The whole flow, timed step by step, is in the fastest way to send wedding thank-you cards.

A hundred cards at $1.99 each is $199, with printing and postage included. Paste your list and start your wedding postcards.

Frequently asked questions

Are postcards OK for wedding thank-you notes?

Yes. What makes a wedding thank-you correct is the message: it thanks the guest by name, names their gift, and arrives in reasonable time. A postcard that does those things is a proper thank-you. Pick a folded card instead when the note is private, such as a thank-you for a generous cash gift, or when your families expect formal stationery.

How much does it cost to mail a wedding thank-you postcard?

The USPS postcard price is $0.65, against $0.82 for a letter in an envelope, as of September 29, 2026. That is $65 of postage for 100 postcards against $82 for 100 enveloped cards. The postcard price only applies up to 4.25 by 6 inches, so a 5x7 postcard pays the letter price. ShipNote is $1.99 a card on 10 or more with printing, postage and mailing included.

What size should a wedding thank-you postcard be?

4 by 6 inches, or smaller. USPS charges the postcard price only for cards no larger than 4.25 by 6 inches and between 0.007 and 0.016 inches thick. Anything larger pays the letter price, which removes the main saving of choosing a postcard.

Can I put our wedding photo on a thank-you postcard?

Yes, and it is the best reason to choose a postcard. The photo is on the front, so guests see it the moment they pull it from the mailbox. On ShipNote, photo designs include Classic, Polaroid, Magazine Cover, Split, Framed and a blank card that prints your photo edge to edge.

Is a printed postcard too impersonal for a wedding gift?

Not if the note is specific. A printed card that names the guest and the gift and says one true thing about it reads as personal. What reads as impersonal is the same generic sentence sent to every guest, whether it is printed or written in pen.

Related reading

• The complete wedding thank-you guide: timing, wording and mailing in one place.
• What to write in a wedding thank-you note: templates and examples.
• Wedding thank-you card etiquette: deadlines, cash gifts and tricky cases.
• Is it too late to send wedding thank-you cards?