Wedding Invitations and Postage in Canada: 2026 Stamp Prices, Oversize Envelopes and Digital Options

Mailing a standard wedding invitation in Canada costs $1.44 with a single stamp, or $1.24 per stamp bought in a booklet, for envelopes up to 30 grams, according to Canada Post's stamp prices as of 1 October 2026 (taxes extra). Heavier standard envelopes up to 50 g cost $1.75. If the envelope is oversize, too thick or rigid, or holds a heavy card, it moves into non-standard and oversize rates that start at $2.61 up to 100 g. Mailing to the U.S. starts at $1.75 and international mail at $3.65. Weigh a fully assembled sample at the post office before buying stamps, and remember the RSVP envelope needs postage too.

Canada Post stamp prices

Canada Post gives a rough guide of up to 5 sheets of paper for 30 g and up to 9 sheets for 50 g, but says actual weight depends on paper type, size and envelope thickness, and that the sender is responsible for applying the correct postage for the size and weight. Canada Post publishes the size and weight measurements that count as standard mail; check them before ordering square envelopes, wax seals, ribbon or rigid cards, which can change the category.

Permanent stamps

Canada Post's Permanent stamps show a P instead of a value and are always accepted at the current domestic postage rate, even after rates rise. Older domestic stamps showing a value can also be used if they add up to the current rate. For envelopes that need more than the basic domestic rate, combine stamps to reach the right amount.

Printed vs digital

One option is a hybrid: printed invitations for family and close friends and digital for everyone else, or a printed card that points to a wedding website for details and RSVPs. That keeps postage on a smaller set and removes the RSVP envelope entirely.

Where the printing money goes

Printing quotes usually depend on paper weight, size, number of colours, printing method and the number of inserts. Each insert you add, whether a details card, map, accommodation card or reply card, adds printing cost, assembly time and weight, and can tip an envelope from 30 g into 50 g or into the oversize category. Before ordering, ask the printer for a physical sample in the final paper and envelope, then weigh it with every insert. Order a small surplus for keepsakes, mistakes and late guests, since reprinting a small quantity later often costs more per piece.

Addressing and assembly

Plan addressing early. Collect full mailing addresses with postal codes in a spreadsheet, which also becomes your RSVP and seating list. Printed address labels or printing addresses directly on envelopes are faster than handwriting and reduce errors. Assemble one complete invitation first, weigh it at the post office counter, then assemble the rest in the same way so every envelope matches the weight you paid for.

Save-the-dates

Save-the-dates matter most for destination weddings, holiday weekends and guests who need to travel. They can be digital even if the invitation is printed. If you mail them, they face the same postage rules; a single flat card or postcard in the standard category is the cheapest option to mail.

RSVP methods

• Reply card with a stamped return envelope: two postage costs per invitation.
• Reply postcard: still needs postage but no inner envelope.
• Wedding website or online form: no postage; include a short link or QR code.
• Text or email to one person: simple for small weddings.
• Phone for older guests: keep a list.

Whatever you choose, set an RSVP date that leaves time for your caterer's final count, and ask for meal choices and allergies in the same reply.

Timeline

Example with made-up inputs

These numbers are an example with made-up inputs, apart from Canada Post's published stamp prices. A couple mails 100 invitations: 85 in Canada, 10 to the U.S. and 5 overseas. Design 1 is a flat card in a standard envelope weighing 28 g, with an online RSVP: 85 at $1.24 (booklet) = $105.40, 10 at $1.75 = $17.50, 5 at $3.65 = $18.25, total $141.15. Design 2 is a thick boxed suite at 90 g, oversize, with a stamped reply envelope for Canadian guests: 85 at $2.61 = $221.85, plus 85 reply stamps at $1.24 = $105.40, 10 to the U.S. at $4.29 = $42.90, 5 international at $8.60 = $43.00, total $413.15. That is $272 more before printing and before taxes.

Common mistakes

• Buying stamps before weighing a fully assembled invitation.
• Forgetting that square or rigid envelopes may be non-standard.
• Forgetting return postage on reply cards.
• Mailing too late for international guests.
• Not keeping a few spare invitations for late additions.

Related: 2027 wedding budget and destination weddings.