Where RSVP comes from
The phrase is French, and so was the etiquette it belongs to: formal invitations in English-speaking society borrowed French expressions in the same way menus did. “Répondez s’il vous plaît” became the four letters RSVP, sometimes written R.S.V.P. with full stops, and the letters outlived the habit of writing invitations in French.
Because the letters already contain the word “please”, “please RSVP” is, strictly, saying please twice. It is so common that nobody minds, but a formal invitation usually writes “RSVP” or “The favour of a reply is requested” and leaves it there.
What RSVP asks a guest to do
An RSVP asks for an answer either way, by a date, through the channel the host has given. A guest who is not coming is asked to say so, and that “no” is just as useful to the host as a “yes”: it frees a seat, a meal and a place in the numbers the venue needs.
It also asks the guest to answer the question that was asked. If the invitation names you alone, the reply is for you alone; bringing a partner or children needs the host’s agreement, not a line added to the reply. If the invitation asks for a meal choice or a dietary need, the reply is the place to give it.
RSVP, “regrets only” and other variants
Several formulas look alike and ask for different things. Using the right one is how a host gets the answers they need without chasing.
- RSVP — everyone replies, yes or no.
- Regrets only — reply only if you are not coming; silence means yes. Suits informal gatherings where an exact count does not matter.
- RSVP by 12 May — a reply is expected by that date; after it, the host plans with what they have.
- Kindly reply to Anna on 07700 900000 — the reply goes to a named person, often used for family events.
- Please reply using your personal link — an online reply, tied to the guest.
How to write RSVP on an invitation
Three things make an RSVP line work: a date, a way to reply, and clarity about who is invited. Put the line near the bottom of the invitation, after the date and the place, where guests look for it. Give one way to reply, not three; when replies arrive by text, email and in person, some of them are lost.
Name the guests on the envelope or in the greeting rather than in the RSVP line itself. “Dear Elif and Mark” is clearer than any rule about plus-ones, and it keeps the reply line short.
- Formal: “RSVP by Friday 12 May, to the address below.”
- Warm: “Let us know by 12 May whether you can make it.”
- Business: “Please confirm your attendance by 12 May using the link in this invitation.”
- With a question: “RSVP by 12 May, letting us know any dietary requirements.”
Choosing the RSVP date
The RSVP date is not when you want to know; it is when somebody else needs to know. The caterer’s final number, the seating plan, the printing of name cards and the venue’s capacity confirmation all have dates of their own. Take the earliest of those and set the reply date a little before it, so there is time to chase the guests who did not answer.
Write the date with the weekday — “Friday 12 May” — which removes the most common misreading and makes it look like a real deadline rather than a suggestion.
RSVP etiquette for guests
Answering an RSVP is one of the few social duties that takes a minute and is noticed when skipped. The host is counting chairs and meals on your behalf.
- Reply by the date, even if the answer is no; sooner is kinder.
- Reply through the channel the invitation gives.
- Reply only for the people named; ask before bringing anyone else.
- Mention allergies and access needs when you reply, not at the door.
- If your answer changes, tell the host at once — especially a late no.
- A yes is a promise; keep it unless something genuinely prevents you.
RSVP etiquette for hosts
Hosts have duties too. An invitation that arrives late, hides the reply date or asks guests to reply in three places gets the replies it deserves.
- Send the invitation early enough for guests to answer before the RSVP date.
- Make it clear who is invited, by name.
- Make replying easy: one channel, few questions, a working link.
- Thank guests who decline as warmly as those who accept.
- Remind the silent ones once, politely, before the date — not those who replied.
- Accept a changed answer graciously; it is better news than an empty seat.
RSVP online, with a personal link
Online replies have changed the mechanics, not the meaning. The best version gives each guest a link of their own, so the reply lands next to their name without anyone typing it, and a guest can change the answer later through the same link. In Winglark every invited guest gets such a personal reply link, and each reply appears on the guest list as it arrives.