Online RSVP
No reply card or return stamp. Any online-service fee is separate.
Use online RSVP in my budget →Should I use an RSVP postcard, envelope, or online reply?
Online replies need no return stamp. Postcards usually cost less than reply envelopes. Enter the number of households you expect to invite and compare all three.
Return postage for 100 replies.
Reply postcard
Usually the lower-cost mailed option, if the finished card meets postcard rules.
Use reply postcards in my budget →Reply card + envelope
A traditional reply card inside an ordinary one-ounce envelope.
Use reply envelopes in my budget →Savings with postcards instead of reply envelopes
Does my reply card qualify for postcard pricing?
A reply postcard gets the lower postcard price only when all of these are true:
- It is rectangular, 5–6 inches long, and 3½–4¼ inches high.
- It is 0.007–0.016 inch thick, unfolded and uncreased.
- It is made from uniformly thick paper or cardstock with only permitted attachments.
- The address runs parallel to the long side.
If not, plan for letter postage or ask USPS to check the finished card.
Current prices: USPS Notice 123 ↗ Postcard boundary: DMM 101 ↗