40th Birthday Card Messages: What To Write

Last updated: June 26th, 2024 Published on: June 18, 2024

That special someone turns 40 soon, so don’t forget that what you put in their card is just as important as the 40th birthday card itself! Take this time to share how much you appreciate them and care about them, or see how cheeky you can be because aging jokes are always funny, right? If you’re struggling to come up with the perfect 40th birthday message, take a look at these messages we’ve come up with to give you inspiration…

Sentimental 40th Messages

Share a special, loving message with the birthday someone because they deserve it.

  • Happy 40th birthday! Wishing you all the love and happiness in the world.
  • I hope your birthday is as special as you are, happy 40th!
  • You’ve been amazing for the last 40 years so thank you for just being you! Happy birthday.
  • As you turn 40, know you’re valued and loved by us all. We wish you the best 40th birthday and a fabulous start to a new decade.
  • You’ve achieved so much in 40 years, now the best is yet to come. Keep being fantastic, happy 40th birthday!
  • You are incredible and I’m so lucky to have you in my life. Happy 40th birthday, you deserve a wonderful day.

Funny 40th Messages

Why not lighten the mood by making a little joke out of the lucky recipient (age jokes are always allowed) …

  • Happy 40th! Let’s say for your sake, things only get better with age!
  • Don’t lose hope just yet because you’re not officially middle aged. Happy 40th
  • You may not be over the hill yet, but you have a great view! Happy 40th birthday.
  • Don’t be sad you’re getting older, if you let aging get you down then you’ll never get back up again! Happy birthday, 40-year-old!
  • Remember now you’re 40, you’re just 20 but with double the experience and double the wrinkles.
  • Congrats on your very old age, happy 40th birthday.

Inspirational 40th Messages

Spread some positivity with an inspirational message or quote…

  • Remember you’re not getting older, you’re just getting better! Happy 40th
  • Happy 40th birthday, now put those 40 years of experience to good use!
  • Happy birthday, say hello to your fabulous 40s because you’re only getting better with age!
  • Happy birthday, I hope your 40s are everything you want them to be!
  • If your next 40 years are even half as good as the first, you’ll have a great time! Happy birthday and enjoy it.
  • I hope your 40s bring you lots of joy and success, so let’s celebrate a new decade. Happy 40th birthday!

For a Friend

Whether they’re the first or last in the group to turn 40, make your friend feel loved with a fun birthday message…

  • Turning 40 doesn’t need to be boring, thanks for filling my life with years of fun and cheers to many more. Happy birthday!
  • You make 40 look fabulous!
  • Sending love to my favourite person on your special day. Here’s to another great year!
  • If it makes you feel better, no one will ever guess that you’re 40! Happy birthday.
  • I’m so happy to have you as a friend… even if you are getting old. Happy 40th birthday.
  • Happy birthday to my best friend. You’re 40 years young and still as amazing as ever.

For a Husband/Wife

You’re hitting another milestone together so share your love and appreciation of that special someone with them on their special day…

  • To my amazing husband/wife, happy 40th birthday! You deserve the best day so let’s go out and have fun (without the kids).
  • Happy 40th birthday to the only person I want to grow old together with and we’re both now one step closer.
  • To my lovely husband/wife, let’s celebrate many more years of us being together. Happy 40th birthday!
  • Now we’re both 40, let’s hope we age like a fine wine. Happy birthday husband/wife.
  • Happy 40th birthday to my partner for life, I’m so happy we get to make more memories together.
  • Happy birthday, you’re now my favourite 40-year-old alive!

For a Son/Daughter

Now your kids are turning middle-aged, you probably can’t believe it! Let them know how loved they are with a special message just for them…

  • Let’s celebrate another decade of you making us proud of the man/ woman you’ve become. Happy 40th birthday my amazing son/ daughter.
  • Happy birthday, maybe now you’re 40 you’ll understand that we weren’t grumpy parents, we were just getting old.
  • Happy 40th birthday! No matter how old you get, you’ll always be our little boy/girl.
  • You are so accomplished, considerate and loving, you make us so proud to be your parents. Happy 40th
  • Happy birthday, you have become the most amazing son/daughter and dad/mum, we’re so proud of you!
  • Happy 40th birthday to my son/daughter. You always spread so much positivity and kindness, you must get it off me!

Still looking for that show stopping 40th birthday card? Find all 40th cards and an array of special 40th gifts on our website. Share memories with our personalised photo gifts or treat them with a luxury gift or hamper. Celebrate the milestone with something extra special!