What to write in a birthday card: simple formulas and example messages

Most good birthday messages have the same shape: open with a greeting and their name, add one specific line about them, and close with a wish for the year ahead. For example: “Happy birthday, Sam. I still laugh about the tent that blew away in Wales. Here's to a year of better weather and more trips.” Three lines fit comfortably inside an A6 card at a readable size.

The middle line is what makes it personal. Pick something only you would know: a shared joke, a moment they helped you, a habit you love. If nothing comes, finish a starter such as “This year I hope you…”, “My favourite thing about you is…” or “Remember when we…”; Foldpic's optional story prompts offer these when you click into a card's text.

Friend: “Happy birthday to the person who answers my 2 am texts. Same time next year?” Or: “Another year of being the friend everyone wants on their team. Have the best day.” Partner: “Happy birthday, love. Every ordinary Tuesday is better with you in it.” Or: “To many more years of arguing about the thermostat. I love you.”

Mum or Dad: “Happy birthday, Mum. Thank you for every packed lunch and every lift you never complained about.” Or: “Dad, you taught me to ride a bike and to say sorry. Have a wonderful day.” Brother or sister: “Happy birthday to my first and favourite partner in crime.” Grandparent: “Happy birthday, Grandma. Your kitchen is still my favourite place in the world.”

For a child, keep it short and read-aloud friendly: “Happy 6th birthday, Leo! You are brave, kind and very good at jumping in puddles.” Or: “Hooray, you're 10! We can't wait to see what you build next.” Name one thing they did this year, a first swim, a lost tooth, a drawing, because children love hearing their own story.

For a colleague or someone you know less well, warm but simple works best: “Happy birthday! Thanks for making Mondays easier. Enjoy the day.” Or: “Wishing you a relaxed birthday and a great year ahead.” For a manager: “Happy birthday, and thank you for your support this year.” Avoid jokes about age at work.

Belated: own it lightly and do not over-apologise. “Happy belated birthday! I'm late, but my wishes are full-size.” Or: “I missed the day but not the chance to say how glad I am you were born.” A belated card with a photo and a real line usually lands better than an on-time one with only a signature.

Milestones: 18th, “Happy 18th! Go and be brilliant, and call home sometimes.” 30th, “Thirty looks good on you. Here's to your best decade yet.” 50th, “Happy 50th. Half a century of making everyone around you laugh.” 80th, “Happy 80th, Grandad. Eighty years and still the best storyteller at the table.”

Sign-offs set the tone: “Love,” and “Lots of love,” for family and close friends; “All the best,” or “Warm wishes,” for colleagues; “Your favourite sibling,” as a joke. Add the year under your name if it is a card they might keep, especially for children and milestone birthdays.

On a home-printed card you can type the message so it is always legible, then add a handwritten line or signature after printing. Write on the inside panel before folding, while the sheet is flat, and let the ink dry for a minute so the crease does not smudge it.