Online RSVP
No reply card or return stamp. Any online-service fee is separate.
Use online RSVP in my budget →RSVP postcard or envelope postage.
Compare the three return-postage choices, then use the one that fits your invitation.
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 ↗