You bought the perfect card, and then the pen hovers over that empty space and nothing comes. It happens to everyone. The good news is that a great birthday message does not need to be clever. It needs to sound like you, and it needs to say something true about the person opening it.

Below are more than 120 ideas, sorted by who you are writing to and the tone you are going for. Pick one as is, or stitch two together and add a memory of your own.

What to write in a child's birthday card

Happy birthday to the most wonderful you. I hope today is full of cake and fun.
You are kind, you are brave, and you are so much fun to be around. Have the best day.
Another year of being amazing. We are so proud of the person you are becoming.
Wishing you a day as bright and happy as your smile.
Happy birthday, superstar. Go and enjoy every minute of your special day.
You are getting bigger, braver and kinder every year. Have the best birthday.
Hope your day is packed with games, giggles and a giant slice of cake.
Happy birthday to a kid who makes the whole world more fun.
Make a wish, blow out the candles, and have a magical day.
You are one of a kind, and today we get to celebrate exactly that.

What to write in a teenager's birthday card

Happy birthday. The world has no idea how lucky it is to have you in it.
Wishing you a year of big dreams and even bigger adventures.
Happy birthday to someone who is going to do incredible things.
Another year wiser, cooler and closer to taking over the world. Enjoy it.
Hope your birthday is as awesome as you are. Have a great one.

Heartfelt messages for family

You have shaped who I am in more ways than you know. Happy birthday, with all my love.
Thank you for every story, every hug and every lesson. I hope today feels as special as you are.
Growing up with you is one of my favourite things. Happy birthday.
Family is everything, and you are the best of ours. Happy birthday.
However far apart we are, you are always close to my heart. Happy birthday.
I am so grateful for you, today and every day. Have a wonderful birthday.
Thank you for being my home, no matter where I am. Happy birthday.

What to write in mum's birthday card

Happy birthday, Mum. Thank you for a lifetime of love and patience.
You make our family feel like home. Have the happiest birthday.
Wishing the best mum a day as wonderful as she makes every other day.
Happy birthday, Mum. I hope you feel as loved as you make us feel.
You deserve all the cake and all the spoiling today. I love you, Mum.

What to write in dad's birthday card

Happy birthday, Dad. Thank you for being my hero and my biggest fan.
You can fix anything and make everyone laugh. Have the best birthday, Dad.
Wishing the world's greatest dad a day off and a giant cake.
Thank you for every lesson and every laugh, Dad. Happy birthday.
Happy birthday, Dad. I am so lucky to be yours.

Funny birthday messages

Another year older and still not tidying your room. Happy birthday anyway.
You are not getting older, you are getting closer to nap time being socially acceptable.
Happy birthday. Let us eat cake for breakfast and call it tradition.
Congratulations on completing another lap around the sun. Impressive.
You are aging like fine wine, so we are keeping you indoors. Happy birthday.
Happy birthday. May your wifi be strong and your cake be enormous.
Do not count the candles, just enjoy the warmth. Happy birthday.
Happy birthday. We both know we are only here for the cake.
You are not old, you are a classic. Happy birthday.
Happy birthday. Same age as always, just rounding up a little.

Birthday messages for a partner

Every year with you is better than the last. Happy birthday to my favourite person.
You make ordinary days feel like a celebration. Today it is my turn to celebrate you.
Happy birthday to the love of my life and the best part of my day.
I fall for you a little more each year. Happy birthday, my love.
Here is to many more birthdays side by side. I love you.
Doing life with you is the best gift I could ask for. Happy birthday.

Birthday messages for a friend

To the friend who knows all my stories and loves me anyway, happy birthday.
Here is to another year of laughing too loud and showing up for each other.
Life is so much better with you in it. Have the best birthday.
Happy birthday to my partner in crime and favourite person to overshare with.
Cheers to you today, my friend. You deserve every good thing.
You are the friend everyone wishes they had. Have a wonderful day.
Happy birthday. Thanks for always being just a text away.

What to write for a milestone birthday

Sweet 16. Wishing you a year as bright as your future.
Happy 18th. The whole world is opening up for you. Enjoy it.
Happy 21st. Here is to new adventures and unforgettable memories.
Welcome to your 30s. The best decade yet is just getting started.
Happy 40th. You get bolder and wiser every single year.
Half a century of wonderful. Happy 50th birthday.

Short and sweet (when space is tight)

Happy birthday. So glad you were born.
Have the best day. You deserve it.
Cheers to you today and always.
Wishing you all the good things today.
Hope your day is as lovely as you are.
Sending cake, hugs and happy vibes.
Best birthday wishes, today and all year.
Make a wish. Have a wonderful day.

Belated birthday messages

Happy belated birthday. I am late, but my love for you is right on time.
Better late than never. I hope your birthday was wonderful.
Sorry this is late. I hope your day was as special as you are.
Belated happy birthday. The celebration is officially extended.

What to write in a sister's birthday card

Happy birthday to my first friend and forever favourite. Love you, sis.
Nobody gets me like you do. Have the best birthday, sister.
Lucky to share a family and a lifetime of memories with you. Happy birthday.
Happy birthday to the sister who is always in my corner.
You are my person. Have the most wonderful birthday.

What to write in a brother's birthday card

Happy birthday to my built-in best friend. Love you, bro.
Thanks for a lifetime of laughs and looking out for me. Happy birthday.
Happy birthday to the brother who makes everything more fun.
However old we get, you are still my partner in mischief. Happy birthday.
Lucky to grow up beside you. Have a brilliant birthday.

What to write in a grandparent's birthday card

Happy birthday, Grandma. You are the heart of our whole family.
Happy birthday, Grandpa. The world is wiser and warmer with you in it.
Thank you for the stories, the snacks and the endless love. Happy birthday.
Wishing the best grandparent a day as lovely as the memories you give us.
Happy birthday. We treasure every moment with you.

What to write in a colleague or boss's birthday card

Happy birthday. May your inbox be light and your cake be heavy today.
Wishing a brilliant colleague a wonderful birthday and a great year ahead.
Happy birthday. The team is lucky to have you, today especially.
Hope your birthday is as great as you are to work with. Enjoy.
Happy birthday. Step away from the desk and enjoy your day.

What to write in a young child's birthday card

Happy 2nd birthday to our favourite little troublemaker. We adore you.
Three years old already. Happy birthday, you are growing up so fast.
Happy 4th birthday, big kid. Have a day full of fun and cake.
Five whole years old and so brilliant. Happy birthday, little one.
Happy birthday, sweetheart. You are loved more than all the stars.

Sentimental birthday messages

The world became a better place the day you were born. Happy birthday.
I hope this year brings you everything you have quietly hoped for.
However your day looks, I hope you feel deeply loved. Happy birthday.
Grateful does not begin to cover how I feel about having you in my life.
May this year be gentle, kind and full of joy for you. Happy birthday.
You matter more than you know. I hope today reminds you of that.

Inspirational birthday quotes to add

Count your life by smiles, not years, and by joy, not tears.
Today is the first page of a brand new chapter. Make it a good one.
The more candles on your cake, the more good times you have had.
May your birthday be the start of your happiest year yet.
Growing older is a gift not everyone gets. Celebrate it.

Religious birthday blessings

May God bless you with health, happiness and peace this year. Happy birthday.
Wishing you a birthday wrapped in blessings and a year full of grace.
May this new year of life be filled with love and light. Happy birthday.
Praying for joy and countless blessings for you today and always.
Happy birthday. May you feel deeply blessed and dearly loved.

What to write from the whole family

Happy birthday from all of us. We love you to bits.
The whole family is celebrating you today. Have a wonderful birthday.
Sending love and hugs from every one of us. Happy birthday.
Happy birthday from your biggest fans. We are so proud of you.
We are all so lucky to have you. Have the best day.
From our family to you, with all our love. Happy birthday.
Wishing you the happiest birthday from everyone here who adores you.

Quick tips for a card that lands

A few small choices make any message feel personal. Lead with their name. Mention one specific thing you love or are grateful for. Close with a wish for the year ahead. If you want the etiquette in depth, Emily Post has a helpful guide, but honestly, sincere beats perfect every time.

If the birthday is a big one, the words can live somewhere better than a drawer. Plenty of families turn the message into a personalised birthday book so the child reads it again every year. You can also browse our story books to see how it works.

Frequently asked questions

What is a short birthday message?

Something warm and specific that fits in a line or two, such as "Happy birthday, so glad you were born." Use their name and one genuine sentiment.

What should I avoid writing in a birthday card?

Skip anything generic you could have written to anyone, and avoid age jokes if you are not sure they will land. When in doubt, kind and specific always works.

Ready to make this birthday unforgettable? You can create your child's book in a few minutes.