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Best Messages for an 18th Birthday Card


Turning 18 is a massive milestone. What should you write in an 18th birthday card? Here are some of our favourite messages!


Send your best wishes with a heartfelt message.

  • Happy adulthood! Whatever the future holds, enjoy the journey…
  • I hope this year will inspire you to start anything you’ve always wanted! Have an amazing birthday.
  • Be adventurous, try new things and experience everything! Have an incredible journey through your adult life.
  • Your 18th birthday is a chance to celebrate the person you’ve become and look forward to everything that’s still ahead.
  • It’s impossible to calculate how much joy you’ve brought us over the past 18 years. We couldn’t be prouder of the person you’ve become.

18th Birthday Card - Blush Modern Floral - Border - Happy Birthday

18th Birthday Card - Blush Modern Floral - Border - Happy Birthday


18 years old means they're officially an adult. But that doesn't mean you can't get a bit cheeky and have some fun with the card!

  • 18 is one of the best years in life as you can now do adult things while acting like a child. Happy birthday!

  • Happy 18th birthday! You’re an adult now. Now you can do everything legally that you’ve been illegally doing for years.

  • Eighteen is a tricky age. You have the freedom to do everything but the money to do nothing. Happy 18th!
  • Now that you’re 18 years old, you’re both a teenager and an adult — old enough to move out on your own, yet still young enough to get your parents to do your laundry. Happy birthday!
  • Happy 18th! It's just like before, except you can now buy alcohol with an ID that actually has your photo on it.

18th Birthday Card - Dotty Bear - Cake - Happy 18th

18th Birthday Card - Dotty Bear - Cake - Happy 18th


Can't find the right words? Look for inspiration from your favourite celebrities and songwriters!

  • "The older you get the better you get, unless you are a banana." - Betty White
  • "You don’t get older, you only get better." - Shirley Bassey
  • "You are only young once, but you can be immature for a lifetime." - Germaine Greer
  • "I'm eighteen and I like it!" - Alice Cooper

Luxury Foil Birthday Card - Typography Splash - 18th Happy Birthday