How to Congratulate a Colleague on Their Work Anniversary: 29+ Tips and Examples

By Billie •  Updated: 04/07/23 •  5 min read

Work anniversaries are a significant milestone in a person’s career. They represent years of hard work, dedication, and commitment to a company.

If a colleague is celebrating a work anniversary, it’s important to take the time to acknowledge and celebrate this achievement. If your colleague has announced their resignation or retirement, the examples of best wishes below are still appropriate with a bit of personalization.

Here are some examples of how to congratulate a colleague on their work anniversary in a celebratory anniversary card.

Examples of What to Write in a Celebratory Anniversary Card:

  1. “Congratulations on your work anniversary! Your hard work and dedication are truly appreciated. Thank you for being such an important part of our team.”
  2. “Happy work anniversary! You are a valuable member of our team, and we are grateful for all the contributions you have made. Here’s to many more successful years!”
  3. “Congratulations on reaching this milestone in your career! Your commitment to excellence and teamwork is truly inspiring. Thank you for all that you do.”
  4. “Happy work anniversary! It’s been a pleasure working with you over the years. Your positive attitude and hard work are greatly appreciated.”
  5. “Congratulations on your work anniversary! Your contributions have made a significant impact on our team and the company. Thank you for all that you do, and here’s to many more successful years!”
  6. “Happy work anniversary! Time flies when you’re having fun, and you make our workplace a more enjoyable and productive place to be.”
  7. “Cheers to another year of hard work, dedication, and success. You continue to inspire and motivate us every day. Congratulations on your work anniversary!”
  8. “Happy work anniversary to the best coworker ever! Your positive attitude and commitment to excellence make our team shine.”
  9. “Congratulations on another year of amazing accomplishments! Your talent and expertise are invaluable to our organization.”
  10. “Thank you for your hard work and dedication to our team. Happy work anniversary! Here’s to many more years of success together.”
  11. “Happy work anniversary to our go-to problem solver and rockstar team player. You make our work easier and more enjoyable every day.”
  12. “Congratulations on another year of excellence and growth. Your contributions to our team have been invaluable, and we’re lucky to have you.”
  13. “Wishing you a very happy work anniversary! Thank you for your passion, commitment, and positive energy that you bring to our workplace every day.”
  14. “Congratulations on another year of hard work and success! Your dedication and leadership continue to make a significant impact on our organization.”
  15. “Happy work anniversary! We appreciate your creativity, innovation, and hard work that have helped us achieve great things together.”
  16. “Cheers to another year of making a difference! Your commitment to excellence and professionalism are truly inspiring. Happy work anniversary!”
  17. “Thank you for being an exceptional coworker and friend. Your hard work and positive attitude have made a significant difference in our workplace. Happy work anniversary!”

Funny “Happy Work Anniversary” Message Examples for Co-workers

Make your co-workers laugh with these 12 hilarious and clever work anniversary messages! Perfect for coworkers, friends, and family, these witty and creative messages will add some fun to their special day.

  1. Congratulations on another year of not being fired! Here’s to many more!
  2. Happy Work Anniversary! I’m still trying to figure out how you’ve put up with all of us for this long.
  3. It’s been another year of putting up with the boss’s bad jokes and the coworkers’ worse coffee breath. Congratulations on surviving!
  4. You’ve lasted another year in the corporate jungle. Here’s hoping the next one is filled with more bananas and less drama.
  5. Happy Work Anniversary! I can’t believe it’s been this long since you last saw daylight.
  6. Congratulations on another year of pretending to work while really just scrolling through social media. Keep up the great work!
  7. It’s hard to believe you’ve been putting up with us for so long. Thanks for sticking around and making work a little less miserable.
  8. Happy Work Anniversary! Thanks for being the one coworker I can actually tolerate.
  9. Congratulations on another year of being underpaid and overworked! But hey, at least we have each other.
  10. It’s been another year of living the corporate dream. Keep up the good work and remember to never let them see you cry.
  11. Happy Work Anniversary! You deserve a raise…or at least a trophy for not quitting.
  12. Congratulations on another year of being a work ninja. You always manage to get everything done without anyone noticing. Here’s to another year of secrecy and success!

Congratulating a colleague on their work anniversary is a simple way to show your appreciation and to acknowledge and celebrate their contribution to the company, or perhaps their longevity. If your coworker is retiring, here are example retirement wishes.


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I like to climb mountains, read Nietzsche, and explore the West Coast. I have a BA from York University (2003) in Toronto, Canada, and yet on this site I sometimes spell like an American (know your audience). Thank you. Thank you very much.

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