Two friends, two birthdays, and the same message will not do for both. The one you have known since school needs nothing explained to her at all; the one you sit opposite four days a week needs the whole thing dialled down, because whatever you write may well be read over her shoulder by somebody in the next chair. A friend who lives several time zones away needs the day acknowledged before it is over where she is, rather than before it is over here. And the one you see twice a year — reliably, warmly, and never once more often than that — needs a message that does not apologise for the gap, because she is not sorry about it either and the pair of you know exactly where you stand. So the wishes below are arranged by the kind of friendship rather than by anything else, and they finish with the lines short enough to send from a queue when you have suddenly remembered.
For the friend you have known longest
You have known me through every phase I would rather not discuss and you have never once brought a single one of them up in company. That is the whole definition of a friend. Have a wonderful birthday.
Happy birthday to the person who knew me before I had the faintest idea what I was doing, and who stayed anyway.
Many happy returns. We have been friends for longer than either of us has lived anywhere, held any job or been sure of anything at all. Nothing has shifted it yet.
There is nobody else I can ring and start halfway through a sentence with. Thank you for that, and have a brilliant day.
Wishing you a lovely birthday. The two of us have remarkably little in common on paper, and it has never mattered for a single day.
You remember the version of me that nobody else has met, and you are kind about her. Thank you, and have a very happy birthday.
Many happy returns. Whatever this year decides to throw at you, ring me at an unreasonable hour. It is the arrangement, and it has always worked.
Happy birthday. We ran out of new things to tell each other a long time ago, and it is the most comfortable silence I own.
For a friend from work
Happy birthday, and I hope the day is a quiet one, which is the only thing worth wishing anybody in this job.
Many happy returns. You are the reason I have not walked out of here in the middle of a wet Tuesday afternoon, and I hope you know it.
Wishing you a lovely birthday. May your inbox behave itself and may nobody put anything in your diary after three.
You make a difficult week considerably less difficult and you never once make a thing of it. Have a very happy birthday.
Happy birthday from across the desk. Whatever happens today, you are not opening a single attachment after five.
Wishing you the afternoon off, the good chair, and a meeting cancelled at very short notice. Have a lovely birthday.
Have a good one. Thank you for the coffees, the covering, and the several occasions on which you saved me from myself.
Have a brilliant birthday. Work will unfortunately still be here tomorrow, so give the whole of today to something better.
For the friend you see twice a year
We manage this twice a year and it works perfectly well. Happy birthday, and I will see you at the next one.
Many happy returns. Some friendships need weekly maintenance; ours takes a long lunch and picks up mid-conversation. Long may that carry on.
Wishing you a very happy birthday. We have never once had to catch up properly, because nothing between us goes out of date.
I think about you a great deal more often than I contact you, which is a poor system and I am not planning to change it. Have a lovely day.
You are the proof that seeing somebody rarely and knowing them well are two entirely different things. Enjoy every bit of today.
Same arrangement as ever: no apologies for the gap, nothing to explain, nothing to bring each other up to speed on. Just say when, and have a lovely birthday.
Happy birthday. Whatever else this year holds, there is a long table booked somewhere in it with your name on.
We are overdue. We are always overdue, and it has not once felt like a problem. Have a wonderful birthday.
For a friend who lives abroad
Happy birthday from the wrong country. I hope today is full of people who know you as well as the ones over here do.
Many happy returns, wherever you are reading this. Your birthday is the one day in the calendar when I properly resent the distance.
Wishing you a lovely birthday. I have got used to the time difference and I have not got used to any of the rest of it.
Whatever you are doing today, do it loudly enough that I hear all about it on a bad line later in the week. Have a brilliant one.
Have a wonderful birthday. Home is still here, the kettle still works, and the spare room is still yours whenever you fancy it.
You made a brave decision and you have made it look easy, which it plainly is not. Have a very happy birthday.
Happy birthday, and here is to a year with fewer airports in it. Or more, if that is the sort of year you are after.
From all of us here: have a wonderful day. We talk about you far more often than we tell you, so consider yourself told.
For a friend you have not known long
We have not known each other long and I am already very glad that we do. Have a lovely birthday.
Many happy returns. On the evidence so far this is going to be one of the good ones. Enjoy every minute of the day.
Happy birthday. I have not yet worked out what you like written on a card, so this will have to do until I have.
Wishing you a very happy birthday. It is rare to meet somebody this recently and feel as though you have known them for ages.
I have enjoyed every conversation the two of us have had so far, and there have not been anything like enough of them. Have a brilliant day.
Consider this an official undertaking to remember the date from now on without ever being reminded. Have a lovely birthday.
Happy birthday, and thank you for the easy company. It is in far shorter supply than people imagine.
Have a good one. By next time round I will know you well enough to write something rather better than this.
For a friend after a falling-out
I was not going to let today go past without saying it: happy birthday, and I hope it is a good one.
Many happy returns. Whatever else is unresolved between us, none of it changes what I think of you. It never has.
I am not going to use your birthday to sort anything out. I only wanted you to know that I remembered. Have a lovely day.
Happy birthday. I have been meaning to ring for a while and today seemed as good a reason as any. No pressure to pick up.
Wishing you a very happy birthday. I would much rather be saying this in person, and I am ready to whenever you are.
Today is not the day for any of that. It is your day, and I hope somebody makes a proper fuss of you.
Many happy returns. I have missed the ordinary bits most — the pointless messages, the running commentary. That is all I wanted to say.
Happy birthday. If you would rather leave things here, that is fair enough. If not, you know exactly where I am.
Short enough to send in a message
Many happy returns. Hope today is a good one.
Happy birthday. Go easy on yourself and hard on the cake.
Thinking of you today. Have a brilliant one.
All the best from this end. Enjoy every bit of it.
Happy birthday, and no, I did not need reminding.
Hope the day is quiet or loud, whichever you fancy.
Many happy returns. Ring me when you have a minute.
Have the loveliest day. You are owed one.
Nothing clever to add. Just very glad you exist.
Wishing you a good one, and a better year after it.
Many happy returns. Say the word and I will be there.
Have a wonderful day. Normal service resumes tomorrow.
Questions and answers
Is it better to be a day late with something real, or on time with something rushed?
A day late, every time, provided you do not spend the message apologising for it. Being late is a small social matter and it is forgotten within the week; sending three generic words on the correct day is what actually registers, because it says the date was in your calendar and she was not. If you have missed it, open with the thing you meant to say and put the apology at the end, in one short clause, rather than making it the whole message. What people remember afterwards is whether anybody wrote something that could only have been written to them. Nobody has ever reread a birthday message and thought about what time it arrived.
She is abroad and her day starts hours before mine. When should the message go?
Work to her clock, not yours. A message that lands in her evening arrives after everyone local has already been in touch, and it becomes the one she replies to while tired and getting ready for bed. Sending it the night before, so that it is waiting when she wakes up, puts you at the front of the queue instead — and being first is one of the few advantages the distance gives you. If the gap runs the other way and her day begins while you are asleep, write it in advance and schedule it, then say nothing about the time difference in the message itself. Calls are a separate question: ask which part of the day is free rather than guessing at it.
The work group chat is already a wall of birthday messages. Do I add one of my own as well?
Add to the thread, briefly, so as not to be conspicuously absent, and then send something separate and short directly to her. The group message is a formality and everyone treats it as one; nobody rereads it and nobody is offended by three words in it. The private one is the message that counts, and it can be far more personal precisely because it is not being read by the whole department. Keep the two different — do not paste the same line into both, because she will see it twice and the second copy cancels out the first. If the friendship is genuinely outside work, do not mention work in the private message at all.
We talk every day anyway. What makes a birthday message different from an ordinary one?
It says the thing the daily conversation never gets round to. When you are in constant contact the running commentary crowds out everything general — you discuss what happened this morning, not what she is like. So a birthday message from a friend you speak to every day should be the one message of the year that steps back and says it plainly: what she is good at, what she has got through lately, why the daily nonsense is worth having. It will feel oddly formal to write and that is exactly the point. Send it separately from whatever else you are discussing that day, and do not attach it to the end of a conversation about something else.
A voice note, a card in the post or a message — which is worth the effort, and for which friend?
The post is worth it for the friend you rarely see, because a card is evidence that you did something on a day that was not convenient, and it sits on her mantelpiece for a fortnight afterwards saying so. A voice note suits the friend abroad and the friend you have known longest: tone carries everything writing cannot, and she can play it more than once. Writing is the right choice for work, where a voice note is awkward to listen to at a desk and impossible to answer in an open-plan room. The rule worth following is to match the effort to what the friendship runs on rather than to how fond of her you are. Daily contact is served perfectly well by a good message; two lunches a year is not.