A birthday card is a small thing that means a lot — but staring at that blank space inside can be surprisingly stressful. This guide shows you exactly what to write in a birthday card, with an easy formula, examples for every relationship and tips to make it feel personal. For full lists of wishes, see our birthday wishes.

The easy three-line formula
- Greeting: "Happy birthday, Sam!"
- Something personal: a memory, a compliment or something you're looking forward to together.
- Wish and sign-off: "Have the best day. Love, Jess x"
Example:
Happy birthday, Sam! I'm still laughing about our disastrous camping trip. Hope your day is a lot drier. Love, Jess x
Short birthday card messages
Happy birthday! Hope your day is as brilliant as you are.
Wishing you a fantastic birthday and a wonderful year ahead.
Have the happiest of birthdays!
Cheers to another year of being amazing.
Hope your birthday is full of cake and good company.
Birthday card messages for family
Happy birthday to the heart of our family. We love you lots.
Thank you for always being there. Have the most wonderful birthday.
Another year, another reason to celebrate you. Happy birthday!
For more ideas, see our birthday wishes for Mum, sister and children.
Birthday card messages for friends
Happy birthday to my partner in crime! Here's to many more adventures.
Friends like you are rare. Have the best birthday ever.
Happy birthday! Let's celebrate properly this weekend — first round's on me.
More ideas: birthday wishes for your best friend.
Birthday card messages for a partner
Happy birthday to my favourite person. I love you more every year.
Every day with you is a gift, but today is extra special. Happy birthday, darling.
Thank you for being you. Happy birthday, my love.
More ideas: birthday wishes for your boyfriend or husband.
Birthday card messages for colleagues
Happy birthday! Hope you have a great day and get to leave early.
Wishing you a lovely birthday and a fantastic year ahead.
Many happy returns! Enjoy the cake.
More ideas: birthday wishes for a colleague.
Birthday card messages for children
Happy birthday, superstar! Have the most amazing day.
You're [age] today! We're so proud of you. Happy birthday!
Happy birthday! Hope you get lots of presents and eat lots of cake.
Funny birthday card messages
Happy birthday! You're not getting older, you're getting more vintage.
Don't count the candles — just enjoy the glow.
I was going to get you something amazing, but then I remembered you already have me.
Age is just a number. In your case, quite a big one. Happy birthday!
Congratulations on being born. Excellent decision.
Messages for milestone birthdays
Happy 18th! The world is yours — go and make it brilliant.
Happy 30th! Your twenties were the warm-up.
Happy 40th! Life really does begin now.
Happy 50th! Half a century of being fabulous.
Happy 60th! Wishing you health, happiness and lots more adventures.
For many more, see our milestone birthday wishes.
Belated birthday messages
Happy belated birthday! I hope your day was wonderful — sorry this card is late.
Your birthday may be over, but the celebrations shouldn't be. Happy belated birthday!
I didn't forget your birthday — I just wanted to make it last longer.
How to sign a birthday card
- Family and close friends: "Love", "Lots of love", "All my love", plus kisses (x).
- Friends: "Love", "Best wishes", "Cheers".
- Colleagues: "Best wishes", "Have a great day", your full name.
- From a group: list names or write "From all of us in the team".
Tips for a birthday card they'll keep
- Handwrite it — it means more than a typed message.
- Add a memory that only the two of you share.
- Look ahead — mention a plan for the year.
- Keep it kind — save the roasting for the birthday speech.
- Post it in time — allow at least two working days for first class.
Browse more ideas in our card messages and birthday wishes sections.



