RSVP Deadline Calculator
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RSVP cutoff date, counted backward from your wedding date.
Wedding date
RSVP deadline
2026-09-10
30 days before the wedding
- Wedding date
- 2026-10-10
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Setting your RSVP deadline
Your RSVP deadline should give you enough buffer to finalize headcounts with your caterer, venue, and stationer before the wedding — this calculator simply subtracts a chosen number of days from your wedding date.
A 3–5 week (21–35 day) buffer before the wedding is typical, giving you time to follow up with stragglers, confirm a final headcount with vendors (who often require final numbers 1–2 weeks ahead), and finalize seating charts and place cards.
Example: for a wedding on September 12, 2026, an RSVP deadline set 30 days out lands on August 13, 2026 — leaving about two extra weeks after that to finalize catering counts and seating before the big day.
Common questions
How many days before the wedding should the RSVP deadline be?
3–5 weeks (21–35 days) is typical, giving you time to chase non-responders and still submit a final headcount to vendors on schedule.
What should I do about guests who don't respond by the deadline?
Most couples follow up personally by phone or text with non-responders in the days right after the deadline, since mailed RSVP cards are sometimes lost or forgotten.