The two cards he has already read forty times

Most brother-in-law cards in the shop reach for one of two scripts and both of them lie. The first is the saccharine one. Thank you for being the brother I never had. Thank you for being part of my chosen family. Thank you for being my partner's amazing brother. It is a fine sentiment and your brother-in-law has read the printed version of it about thirty times by the time he is in his late thirties, which is why he will read your handwritten version of it and feel almost nothing. The second is the joke-card register, the in-law-jokes shelf at the back of WHSmith, the lager-can cartoon of the brother-in-law you tolerate, the one who eats all the buffet at every gathering, the one you only see at weddings and funerals. Skip it. Almost no real living brother-in-law actually wants a card that opens with the punchline he has been the butt of for thirty years on television.

The honest card sits somewhere quieter than either. Name the one thing he actually does. The pub-quiz round he always volunteers for and gets wrong. The Saturday-morning ritual the two of you have built that nobody else in the family is invited to. The fantasy-league side he picks every August and that has not finished above mid-table since you have known him. The recipe he learned from his grandmother and that he serves at one specific gathering a year. The half-built project in his garage. The card lands when it names the man, not the role.

One honest admission before any list. The brother-in-law birthday card has a third reader nobody talks about, and that reader is loaded in a different way from the in-law parent card. The third reader is your partner, and your partner is his sibling. That is a different dynamic from writing about somebody's father or mother. There is sibling-rivalry residue in the room. There is the question of who knew him first. There is the chance, depending on the family, that your partner will read the card over your shoulder and feel a small unfamiliar thing about the fact that you have written a paragraph about his brother that nobody asked him to read. Write the card to him. Let your partner read it and feel what they feel. Do not write the card to your partner with his brother's name on the envelope. And do not pretend in the card that you knew him as long as your partner did. He knew him for thirty years before you did, give or take, and the card has to live inside that fact rather than around it.

And one note on what to call him. Some people call him by his first name. Some by a family nickname the family has been using since the rugby club minis days. Some use BIL straight to his face because the family chat has been calling him that for so long that the acronym has become a name. Some use a relation word from a first language. All of these are correct. Sign it the way you address him in real life. If you have called him Cormac for five years and you suddenly write "Dear Bro" because the card said so, he will hear the rented register from twenty paces. If you have always called him Mac, sign it Mac. For a biological brother the wishes for brother set fits the job; this one is for the relationship you got through marriage.

For the brother-in-law who has become close as a brother

This is the brother-in-law who has, over the years, slid quietly into the slot nobody quite predicted. You text him things you would not text your partner. You ring him about a work problem on a Wednesday lunchtime. He is the one you wanted at the hospital appointment your partner could not get to. The card needs to honour the weight of that without making it weird for his sibling who is the bridge. Name one concrete pattern. One sentence he said in October. One running joke. The wedding-toast-grade gratitude lines do not work here because the relationship is more daily than that.

  • Happy birthday to the brother-in-law who has somehow become the man I ring at 9pm on a Wednesday when something has gone wrong with the boiler, before I ring anybody else.
  • You did not ask for the job and you have done it anyway. Happy birthday, with all my love, Mac.
  • Happy birthday, with one specific thank-you for the half-past-midnight in November at the A1 services at Washington, three hours waiting for an AA man who never showed, and not one joke from you about it on the road home.
  • You earned the brother-by-choice title the slow way, one Saturday in the lock-up at a time, and I have counted every single one of them.
  • Happy birthday. I have one brother by blood and one by marriage, and the two of you would not enjoy being compared, so I won't.
  • You have known him for thirty-one years and you have known me for six, and you have somehow let me have a register with you that has nothing to do with him. Happy birthday for that.
  • The BSA has not run for five years. Long may it not run. Happy birthday.
  • Happy birthday to the brother-in-law whose lock-up has been the place I have laughed in for whole winter Saturdays and not once told my own brother about.
  • You were the first person I told about the job offer, before my own family, before your brother, and there was a reason for that I have never quite said out loud. Happy birthday.
  • Happy birthday. The brother I didn't grow up with, which means I got to choose this one. I would choose you again, Mac.

For the cordial brother-in-law you are warm with but not close to

This is the most common register in the country, the one nobody writes greeting-card copy for. You like him. You are pleased your partner has him for a sibling. You see him at Christmas and birthdays and the odd Sunday lunch, you swap the occasional photo of the niblings on WhatsApp, you have not been in his house in maybe two years. The polite middle distance is held respectfully on both sides, and the card should match it: warm, specific, adult, not pretending to be intimate. One concrete observation about him always beats five lines of vague affection.

  • Happy birthday. The lamb tagine you brought to Easter has been the running standard in this family ever since, and the rest of us have stopped trying to compete with it.
  • Happy birthday to the brother-in-law whose summer barbecue at the back of his place has ruined me for everybody else's, including mine, which I will not be showing this card.
  • You have made me feel welcome at your kitchen table every time I have been there, and I want you to know I have not stopped noticing. Happy birthday.
  • Happy birthday. The fantasy-league side you picked in August was four points off the top of the family table at Christmas, which is the closest you have ever come, and the rest of us are not yet ready to talk about it.
  • You have been kind to me in ways big and small for the six years I have been around, and I am genuinely glad you are the brother-in-law I ended up with. Happy birthday.
  • Happy birthday from the sister-in-law who has been quietly learning all your knife skills by watching you at the chopping board while pretending to lay the table.
  • You took on a stranger six years ago and have treated me like family ever since, which is a real and rare thing in a country famously good at the cool reception. Happy birthday.
  • Happy birthday. Thank you for raising children who know how to say please and thank you, share the last biscuit, and ring their uncle without prompting on his birthday. That last one is on me to live up to.
  • Happy birthday. The shed at the back of yours looked impressive in May with the new felting on the roof, and I think nobody in this family gives you enough credit for the weekend it cost you.

For the more formal brother-in-law you are still working out

This is the brother-in-law where the register has stayed formal, sometimes because of culture, sometimes because of age difference, sometimes because he is genuinely a quieter person than your partner and the two of you have not yet found the easy shorthand. You call him by his full first name. You have never been alone in a room with him for more than ten minutes. The card should match that distance honestly. Formal is not cold. A short, careful, well-handwritten note in the formal register often lands more sincerely than a forced swing into the warmer one.

  • Happy birthday, Declan. I hope the day is a quiet and lovely one.
  • Many happy returns, with all good wishes from your brother-in-law.
  • Happy birthday, Declan. The kindness you have shown me since I married into your family has not been lost on me.
  • Happy birthday. I hope this year brings the things you have been quietly working on.
  • Wishing you a very happy birthday and a year of the small good things you keep around you. With love.
  • Happy birthday. I look forward to seeing you at the family lunch on Sunday.
  • Many happy returns, and thank you for the kind welcome you have given me every time I have been in your home.

For the brother-in-law where the relationship has been strained

If you and he have had a hard run, if the wedding planning revealed things, if there is a long-standing thing with the family that lands between you, if the politics or the religion or the just-not-clicking has put a steady low-grade strain in the room, the birthday card has to live alongside the strain without lying about it. You are partly signing this card for the partner whose brother he is, and that is allowed. The card should be polite, brief, true, and not warmer than the relationship can carry. A warmer card than the relationship can hold is the one he reads twice and decides was sarcastic. Keep it honest. And remember: he is your partner's sibling, which means your partner will read the card with an unusually careful eye.

  • Happy birthday. I hope you have a lovely day with the family.
  • Happy birthday. Sending good wishes for the year ahead.
  • Many happy returns. I hope the weekend gathering is a kind one.
  • Happy birthday to my partner's brother, with my best wishes for the year.
  • Happy birthday. I hope it is a good one for you and yours.
  • Wishing you a very happy birthday and a peaceful year ahead.
  • Happy birthday. I hope this year brings the good things you have been working towards.

For the year between you and him that has been hard

Sometimes the strain is recent and specific. A row at the wedding, a comment at Christmas about how you are bringing the kids up, a thing he posted on the family chat that you have not got round to talking about, a fall-out about money that nobody is quite over yet. The temptation is to use the birthday card to fix it, and the birthday card cannot do the work that a phone call or a sit-down in his kitchen needs to do. The card can be quietly accurate, though. Short and plain and real, not chosen-family lines and not the warm one you would have written last year. Send it on the day, sign it from yourself, and let the real conversation happen on its own time.

  • Happy birthday. I hope the day is a good one for you.
  • Many happy returns. We will see you at the family Sunday lunch.
  • Happy birthday. There are things you and I need to talk about, and the birthday card is not the place for them, and I wanted you to know I have not forgotten about either part of that.
  • Happy birthday. From me, on the day, the same as every year.
  • Happy birthday. I am thinking of you today and I hope it is a kind one.
  • Many happy returns. We have had a strange year. The card is from me anyway.
  • Happy birthday. The card is short on purpose. The longer conversation is for after the cake.

For a new brother-in-law on the first or second birthday since the wedding

If the wedding was last September and this is the first birthday card you have ever signed for him, do not overreach. Newness is not a weakness. A card that admits, plainly, that the two of you are still working each other out lands better than a card that performs a decade of warmth in fifteen months. Pick specifics from the year you have actually had together. The first Christmas. The first time he rang you and not your partner. The dinner where he asked you about your work in a way that suggested he had actually listened to the answer he had been given the time before. The guide to writing for someone you don't know well covers the broader move; the specifics here are just for him.

  • Happy birthday to my new brother-in-law, fourteen months in, on the second birthday card I have ever signed for you.
  • You have made me feel welcome in this family from the first time I sat at your kitchen table, and I want you to know I have noticed. Happy birthday.
  • Happy birthday. We are still getting to know each other and I am glad we are taking our time about it.
  • Happy birthday. The first Christmas was a good one and I am quietly relieved we have a year of evidence now that the next ones will be too.
  • You have known him longer than I have been alive, more or less, and you have given me the same hospitality as if it had been the other way around. Happy birthday.
  • Happy birthday to the brother-in-law I got eight months ago, and who I am, against my expectations, finding very easy to be related to.
  • I do not yet know what I will call you in five years. The not knowing is comfortable, and I think that is a good sign. Happy birthday.

For the ex-brother-in-law who is still in your kids' lives

If the marriage ended but the relationship did not, this is one of the quietly truer cards you send all year. You are not married to his brother or his sister any more, you may have a co-parenting arrangement and the cousins still see each other at half-term, or you may just genuinely like him and the friendship outlived the marriage. He might still be uncle to your kids in a real way. Sign it from yourself, not from any role. The card honours what is still there without pretending the rest is still there.

  • Happy birthday. The marriage ended three years ago and I am still glad I get to send you this card.
  • You are the uncle of my children and one of the kindest people I know, and the divorce did not change either of those things. Happy birthday.
  • Happy birthday. We are not in-laws on paper any more, and we are still family in every way that matters to me.
  • You stayed in touch in a way I did not expect, and have come to be quietly grateful for. Happy birthday.
  • Happy birthday to the man who has been a good uncle to my kids and a steady friend to me, regardless of the paperwork.
  • You and I have known each other for twelve years now, which is longer than the marriage was, and the second half has been the easier of the two. Happy birthday.

For the brother-in-law whose first language isn't yours

If he grew up speaking Polish, Punjabi, Gujarati, Cantonese, Tagalog, Portuguese, Italian, Hindi, Urdu, Igbo, Yoruba, Tigrinya or any other first language, and yours is the one you live in together in this country, one line of the card in his language goes a long way. It signals you took the trouble. Get it checked by a relative if you can. The rest of the card can be in yours. Keep both halves specific to him.

  • Happy birthday in your language and in mine, and in all the years of cooking you have done in between the two.
  • Happy birthday. Thank you for teaching me the words I now use for your brother in front of you, which has helped more than you know.
  • Many happy returns. The phrase your grandfather used to say, which you taught me last summer, is one I now use without thinking.
  • Happy birthday. I have written this card in your language for the first time and I want credit for the effort, even if you have to correct the spelling.
  • You have built a life in a country that was not the one you started in, and you have made it look easier than it can possibly have been. Happy birthday.
  • Happy birthday. The recipe from your grandmother that you cooked for us at the first Eid I was at your house is the one I have been trying to teach myself since, and I am still not there.

For the brother-in-law in a queer marriage where the gendered defaults don't fit

If your sibling married a man, or if you married a man and he has a brother, the printed cards in the supermarket are going to be wrong in small constant ways. The defaults are aimed at a sister's husband who calls his father-in-law Dad and his brother-in-law Bro and lives in a three-bedroom semi outside Reading. None of that has to fit. Write the card to the person you actually have. Use his name. Sign yours. Skip the BIL acronym entirely if it does not feel right; some couples just call each other by name and it never becomes anything more.

  • Happy birthday, Theo. We do not use the in-law words for each other in our family and we never quite have, and the card is from me, and that is the whole thing.
  • Happy birthday to my husband's brother, who has been an uncle to our son from the day he was born, in a way the paperwork does not quite have a word for.
  • You have been one of the steadiest people in this household since the civil partnership, then the marriage, then the move, then the small one. Happy birthday.
  • Happy birthday from the husband of your brother, which is a slightly long way of saying: I am very glad we got to land in the same family.
  • Happy birthday. The cards in the shop are not yet quite written for the two of us, so I wrote this one. With love.
  • Happy birthday. The card-shop word is brother-in-law and the word I actually use for you in conversation is your name, and that is the one on the front of this envelope.

Funny birthday wishes for a brother-in-law (gentle ones)

Brother-in-law humour is the trap. The tired sitcom version of him has been running for years and the punchline never quite landed for anyone who has actually had one. Skip the joke-shop register. The good lines come from whatever the running thing between you actually is. The lock-up. The fantasy league. The pub quiz the two of you keep losing on the music round. The shared opinion you have been holding about a specific cousin since the wedding. If you do not have a running joke yet, do not invent one for the card.

  • Happy birthday to the brother-in-law who has spent five years restoring a 1972 BSA A65 Lightning in a Heaton lock-up with me, and whose bike has run for a cumulative total of zero minutes.
  • You have brought the same chilli con carne to every Boxing Day since 2019 and we are all hoping for it again. Happy birthday.
  • Happy birthday. Another year of you and I having the exact same opinion about your brother's parking, and both of us refusing to tell him.
  • You have insisted on the back road through Jesmond Dene every Sunday since the move to avoid one specific roundabout. Happy birthday, never change.
  • Happy birthday. Another year of you watching the rugby on plus-one because you fell asleep in the actual hour. Cherished.
  • You have a position on every cousin in the family group chat and you have stated each of them privately to me more than once. Happy birthday, please never stop.
  • Happy birthday to the brother-in-law whose lock-up smells the same now as it did the day I first walked in five years ago, and whose taste in oil cans has been quietly correct all along.
  • You have been recommending the same Heaton curry house to anyone who will listen for six years. I have eaten there twice. Happy birthday.

Short birthday wishes for a brother-in-law

For a text on the morning of, or a card with five other signatures already on it. Twelve words at most. The trick is to stay specific in the few words you have. Two true ones in your real voice beat a long generic sentence every time.

  • Happy birthday. Mean it.
  • Happy birthday, Mac. Save me a slice.
  • Many happy returns. Lunch on Sunday.
  • Happy birthday from the keeper of the lock-up key.
  • The best brother-in-law in three counties. Happy birthday.
  • Happy birthday. Cake. Tea. Quiet evening.
  • Thirty-eight years. Happy birthday, Cormac.

Lines for a family group birthday card

A brother-in-law's birthday is a natural group card in any family because the household has more sides than a single envelope. His own kids, his siblings, the in-laws on both sides, the nieces and nephews, sometimes the ex-in-laws on friendly terms. Group lines work best when they are short and unmistakably from one signer. He should read your line and know it is you without checking the signature. Coordinate it on the family chat, send the link, deliver on the morning.

  • From the brother-in-law who has spent five winter Saturdays a year with you in a lock-up that your own brother has been in twice: happy birthday.
  • Happy birthday from the sister-in-law you have, against the odds, slowly trained to make a passable chilli con carne.
  • From the niece who knows you only as Uncle Mac and would be very confused by anything else: happy birthday.
  • Happy birthday from the in-law who has been quietly stealing your fantasy-league research method since 2022. I have come fourth twice.
  • From your former brother-in-law, who is still very much your friend: happy birthday.

Turn it into a group card

A brother-in-law's birthday is often one of the family cards that wants the most signers, because the household has more sides than one row of names will fit on. His own kids, his parents, the in-laws on both sides, the nieces and nephews, the ex-in-laws who stayed in touch, sometimes the cousins. Each signer has a slightly different relationship to him, and the best version of the card lets each person write only the line they would actually write rather than a chorus of "happy birthday with love" repeating down the page. A group birthday card online handles the logistics without anybody having to ferry a paper card across three counties: one link to the family chat, everyone signs on their own time, the card lands on the morning of. You can create a card online in a couple of minutes, set the delivery for the morning of his birthday, and use an old photograph for the cover (the wedding-morning photo of the two brothers in their suits, or the one from the niece's christening, both work). If you would rather send something quiet from just you and your partner, a free online birthday card goes in seconds, and for any family occasion that wants the whole household at once, an online group together card is the right shape.

For the private paragraph card from you alone, the full guide to what to write in a birthday card has the four-part structure these lines are built on. The wishes for sister-in-law set is the obvious other half of this one if his sister's birthday and his land in the same month, the wishes for father-in-law piece is the third one in the same household if his father's birthday is on the same Sunday lunch, and the wishes for mother-in-law guide is the fourth in the in-law set.

The BSA on the bench in the lock-up has a fuel tank with a sticker on the underside that says "Cormac, June 2021, the day I bought you." Cormac wrote it with a silver paint pen the afternoon he drove the bike home from Whitley Bay on a borrowed trailer. I did not see the sticker for the first three years because the tank had been off the frame the whole time we have been working on it. Last March we put the tank back on, after the new petcock and the new fuel lines and the long argument about whether to repaint or to keep the original Bushfire Red, and Cormac said nothing about the sticker. I noticed it the following Saturday when I was lying on the concrete looking up at the underside trying to figure out the carb linkage. I have not mentioned the sticker to him. I have not mentioned the sticker to Niall either. I have a feeling the right thing to do with it is to leave it alone, the way you leave a thing a brother does for himself alone, and write him a card every year on his birthday about the bike that does not run.