When to send invitations: timings for weddings, christenings, birthdays and the office Christmas party

Short answer: for a wedding, send a save the date nine to twelve months ahead and the invitation itself around three months before. Christenings and naming ceremonies need three to four weeks; adult birthdays and house parties two to three. The office Christmas party is the odd one out: invitations go out in September, because venues and December weekends go first. Here is where those numbers come from.

The rule that decides everything else

The more a guest has to organise in order to come, the earlier they need to know. A house party two streets away needs a message that week. A wedding at the other end of the country means time off work, a hotel room, childcare and a train. That is not etiquette; it is logistics. An invitation sent too late forces guests to choose between your event and something they have already agreed to.

The opposite mistake is just as real. Sent three months early, an invitation drowns in the group chat and the date falls out of people’s heads. That is why big events get two messages: first the date, then the details.

Weddings: save the date, then the invitation

The save the date is well established here, and it earns its place. Nine to twelve months before, send the short version: who, when, roughly where. No timings, no menu, no gift list. Its only job is to claim the date in your guests’ diaries and give anyone travelling time to book leave.

The invitation follows around three months before — eight to twelve weeks. This is where the detail lives: ceremony time, venue address, travel and parking, somewhere to stay, and a firm reply-by date. Sending wedding invitations online means the map, the countdown and the RSVP button travel inside the invitation itself, so nobody has to ring you for a postcode.

Lean towards the earlier end if you are marrying in peak season, inviting guests from abroad, or your date sits beside a bank holiday weekend.

Christenings, naming days and children’s parties

Three to four weeks is the window in which these invitations work best. The guest list is mostly family and nobody needs annual leave — but grandparents need time to arrange the journey, and parents of small guests plan weekends surprisingly far ahead.

Christenings carry one extra deadline that is easy to miss: ask the godparents separately and much earlier, as soon as you have decided. Being asked is an honour, not a party invitation. We cover this in our guide to christening invitations.

Adult birthdays and house parties

Two to three weeks for an ordinary birthday, drinks or a barbecue. Four to six weeks for a milestone birthday where people travel or you have paid a deposit on a venue. For a surprise party give guests more time, not less — some will have to lie convincingly to the guest of honour.

The office Christmas party and other work events

Send the Christmas party invitation in September, or early October at the latest. The decent venues in most towns are booked from late summer, and by November your colleagues’ December weekends already belong to other people’s parties.

For the rest of the corporate diary: a team away day needs four to six weeks, a conference or training day six to eight — more if people are travelling from other cities.

The dates the calendar has already claimed

Before you fix a date, check what the British calendar has done to it. August belongs to the school summer holidays: families are away and replies slow to a crawl. Half-term weeks do the same in miniature. May looks free until you notice two bank holidays and everyone’s plans wrapped around them. And late December is simply written off — from the last week of term to New Year, assume nobody is free unless they tell you otherwise.

None of these are reasons to cancel. They are reasons to send earlier and chase sooner.

RSVP deadlines — and what to do when you are late

The reply-by date is not decorative. It is set by the last moment you must confirm final numbers: caterers usually want them seven to fourteen days out, venues with seating plans much the same. Add a few days for chasing the people who never answer. In practice: ask for replies three to four weeks before a wedding, seven to ten days before a smaller do. Write it as a date — ‘please reply by 12 September’ works; ‘let me know’ does not. With digital invitations the replies collect themselves: guests RSVP online with one tap, and you watch the list build instead of keeping a spreadsheet.

Already late? Change the order, not the wording. Send the link today, put the date and time in the first sentence of your message, and telephone the people who matter most. An online invitation reaches phones in minutes — create an invitation and it can be out this evening.

The short version

A wedding needs two messages: the date up to a year ahead, the invitation around three months before. Family occasions and birthdays live in the two-to-four-week window, and the office Christmas party must beat the September rush for venues and diaries. Always set the reply-by date by counting backwards from the day the caterer needs numbers — never from the day you finally sit down to write.

FAQ: Can you send wedding invitations three weeks before the day? You can, and sometimes life leaves no choice — but expect a few refusals from people already booked, and do not read them as a snub. Telephone your closest guests rather than waiting on messages, and give everyone else a link with the reply-by date impossible to miss. Printed cards cannot turn around in that time; we compare the two honestly in online or paper invitations.