Work backwards, not forwards. Your RSVP deadline is not a date you pick from the invitation; it is a date your caterer picks for you. Ask them when they need final numbers, count back at least a week for the chasing, and that is your reply-by date. Then set it so it closes on its own, because a deadline nobody enforces is a suggestion.
Ask your caterer for their date first
It is easy to set the deadline the wrong way round: pick a date that sounds tidy, then learn the caterer wanted confirmed numbers a fortnight earlier. Ask them in writing for the exact day they need a final head count, then list every other supplier whose job depends on the number.
- The caterer’s final head count. Usually the earliest and the least flexible.
- The venue’s minimum-numbers date, if your contract has one. It is often not the caterer’s day.
- The seating plan, which cannot start until you know who is coming.
- Anything printed with names on it: place cards, menus, orders of service.
- Transport, room blocks, and anything else booked per head.
Take the earliest of those. That is the day your numbers have to be true. Your reply-by date sits in front of it with room in between, because you will spend that gap on the phone.
How far ahead the deadline should sit
The numbers below are working habits, not research findings. Where the guest list is mostly local, invitations tend to land about two months ahead, with the reply-by date three to four weeks before the wedding. If a fair share of your guests are flying in, move both earlier: send roughly three months ahead and close replies six to eight weeks out, so people are booking flights against a real answer rather than a hope.
A wedding spread over several days wants the earlier end too: choosing between two of your four ceremonies takes longer than choosing yes or no. Pick a weekday rather than a Sunday, as well. People reply on the day they see the message, and a weekend deadline slides into Monday.
Why the date should close itself
A deadline you have to defend by hand is not really a deadline. Every late reply becomes a small negotiation with somebody you love, and you are the one saying no. A form that stops accepting answers takes that out of the conversation.
In Link Invitation you set a reply-by date on the invitation. Until it passes, the card carries that date and the RSVP form works as normal. Your reply-by day itself counts in full, and then some: the form keeps accepting answers for 36 hours from the start of that day, which is enough to cover the whole of it as far behind you as UTC-12. After that the form is gone. Guests who open their link see a short note saying replies have closed and asking them to contact you directly, and anything sent late is refused rather than quietly counted in your totals. One date covers the whole invitation: if guests answer each ceremony separately, there is still a single reply-by date, not one per ceremony.
The week before it closes
Chasing works before the deadline. After it, you are asking a favour. The last week or ten days is the window we would suggest: late enough that the date feels real, early enough that people can still act on it.
Your RSVP dashboard shows who has not replied yet, so you are not guessing down a spreadsheet. Work from that list. The reminder travels the same road the invitation did: you open a guest, send their message, move to the next one, so what lands in their chat is a note from you and not a forward doing the rounds. Put the actual date in the words. “Replies close on the 14th” gets answered; “just checking in” does not.
Aim each reminder at whoever in the household actually answers, which is not always the person named on the invitation. If an older relative will not open a link at all, take their answer on the phone and enter it yourself rather than leaving them in the awaiting column.
The people who miss it anyway
Some will. Decide in advance what happens then, because deciding in the moment is how a deadline stops meaning anything.
Give yourself a private cushion. If the caterer needs numbers on the Tuesday and your reply-by date is the Friday before, those four days are yours alone. That gap stands between a deadline that holds and a cousin arriving with four people nobody counted.
- Phone the stragglers rather than messaging them. A call gets you an answer there and then; a message joins a queue.
- Treat silence as a no when you submit your numbers, then keep a short list of the silent in case they surface.
- Record the late replies yourself. The closed form stops guests submitting; it does not stop you. You can set any guest’s answer from your guest list at any point, including after the deadline has passed.
- To reopen the form properly, push the date out or clear it altogether and it returns. No guest needs a new link: their address never changed, so the message you already sent still works.
When a reply-by date is the wrong tool
We would rather say this than sell you something you should not use. If you are having thirty people, you will know who is coming long before a deadline does any work, and a hard cut-off just gives you one more thing to enforce.
Some weddings count households rather than replies. Where invitations are handed over in person and attendance is assumed unless somebody says otherwise, a form that closes itself can read as cold, and the relative who never opened the link is unmoved by it either way. There the numbers come from phone calls, and the deadline belongs in your own calendar rather than on the card. Leaving the reply-by date unset keeps the form open indefinitely, which is the right setting for a ceremony anyone may come to. If part of your list needs paper, the cost guide covers what a printed reply card adds per household.
Frequently asked questions
How far before the wedding should the RSVP deadline be?
As a rule of thumb, three to four weeks before the day when most guests are local, and six to eight weeks when people are travelling. The real test is your caterer’s final-numbers date: sit far enough in front of it to have a week or more to chase.
What happens if a guest replies after the deadline?
The reply is refused. Once the date has passed, a guest opening their link sees a short note saying replies have closed and asking them to contact you directly, rather than a form. If they do get in touch, you can record their answer yourself from your guest list.
Can I change the deadline after I have sent the invitations?
Yes. Move it, or clear it entirely to open the form again. The links already in your guests’ chats go on working either way, so nobody has to be messaged twice.
Related: RSVP tracking