What are the actual rules of RSVPing?
Reply by the stated deadline, and sooner is a courtesy, because behind every RSVP date is a caterer invoicing per head and a host doing seating math. Silence is the rudest possible answer; it forces someone to chase you about their own party.
The invitation's addressing is the guest list. If your name alone is on it, no plus-one; if the envelope does not name your children, they are not invited, and asking the host to make an exception puts them in an unfair spot. And guests, the correct answer to may I bring, is never to have asked.
Yes means yes. Canceling for anything short of illness or emergency, especially for a wedding where your seat was purchased weeks earlier, is a real breach, and no-showing without word is worse. If plans genuinely collapse, tell the host immediately and directly, not through the grapevine, and send the gift anyway.
Reply by the deadline, never bring an uninvited plus-one or child, and treat yes as binding. The hosts are paying per head and planning around your silence.
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https://frequentlyaskedquestions.us/q/rsvp-rules/Everybody Asks. (2026, July 28). What are the actual rules of RSVPing? https://frequentlyaskedquestions.us/q/rsvp-rules/“What are the actual rules of RSVPing?” Everybody Asks, 28 July 2026, https://frequentlyaskedquestions.us/q/rsvp-rules/.“What are the actual rules of RSVPing?” Everybody Asks. Last modified July 28, 2026. https://frequentlyaskedquestions.us/q/rsvp-rules/.This page summarizes the primary sources listed above. For academic or encyclopedic work, cite those primary sources directly wherever possible.