Work anniversary messages for every milestone.

Somewhere in your company’s HR software there’s a rule that fires off an email when someone hits a work anniversary. LinkedIn sends its own nudge, and a few people tap the button that says “Congratulate.” For a lot of people, that’s the whole celebration. So if you take two minutes to write a couple of sentences yourself, they’ll notice.

Most of us get as far as “Happy work anniversary!” and stall. Below you’ll find what makes an anniversary note feel real, how it should change between year one and year ten, where managers and coworkers differ, and 45 examples to use as they are or rework into your own.

What people want to hear on their anniversary

An anniversary note is really a thank you with a date attached. What people want to hear is that the time added up to something and that somebody noticed. That’s why the most generic messages fall flat. “Congrats on five years!” describes the calendar and says nothing about the person.

A simple pattern works for most people. Congratulate them, name one thing you appreciate about working with them, and look ahead. Here’s a made-up example for a colleague named Dana.

Happy three years, Dana! You’re the person who knows where everything lives, and you’ve never once made anyone feel silly for asking. This team runs smoother because of you, and I’m really glad you’re still here.

The middle sentence is the one doing the work. If you only have time to get one line right, make it that one.

How the milestone changes the message

A first anniversary and a fifteenth are different occasions, and the tone should shift with them.

One year is about arrival. The person has gone from new to part of the team, and the nicest thing you can tell them is that it shows. Mention how quickly they found their feet or something they already changed for the better.

Three to five years is about contribution. By now they’ve built things, fixed things and probably trained a newer person or two. Point at something concrete they made or carried.

Ten years and up is about legacy. These people often hold the history of the place. They remember why things are done the way they are, and they’ve watched a lot of colleagues come and go. A good note here acknowledges how much of the team they’ve shaped.

1 year work anniversary messages

• Happy one year! It feels like you’ve been here much longer, in the best possible way.
• A year ago you were asking where the stapler was. Now half of us come to you with questions. Happy anniversary!
• Congrats on your first year. You jumped into the deep end on the migration and made it look easy.
• Happy one year. You survived your first year-end, your first reorg and the coffee machine. That’s a full tour.
• Thanks for a great first year. The new onboarding doc you wrote is already the one everyone sends around.
• Happy one year! So glad you said yes to this job.

3 and 5 year work anniversary messages

• Three years! Thanks for being the person who asks “what problem are we actually solving?” in every kickoff. We need that.
• Five years of good ideas, good questions and very good slide decks. Congratulations.
• Happy fifth anniversary. You’ve seen this team through a lot of changes and kept us steady through all of them.
• Congrats on five years. I’ve learned more from sitting next to you than from any training I’ve been sent on.
• Half a decade! Most of what new hires learn in their first month, they learn from you.
• Happy five years. It’s hard to picture this place without you, and I’d rather not try.

10, 15 and 20 year work anniversary messages

For the long-timers, shared history is the best material. If you know a story from their early days, or something they built that’s still in use, put it in the card.

• Ten years is a real achievement. Thank you for a decade of hard work and patience with the rest of us.
• Happy ten years! So much of how this team works today started with you, even if nobody remembers that anymore.
• Fifteen years of showing up and caring about the work. That’s rare, and we see it.
• Twenty years! You’ve trained, mentored and covered for more of us than anyone can count. Thank you.
• The company has changed a lot in your time here, and you’ve made every version of it better.
• Twenty years of good judgment, institutional knowledge and the best stories at every team lunch. Here’s to you.

A bigger milestone can carry a longer note, especially from someone who has worked with the person for years. Here’s a made-up example for someone celebrating fifteen years.

Happy fifteen years, Marcus. When I started here you were the one who sat with me for an hour to explain the billing system, then did it again the next week when I’d forgotten all of it. I’ve watched you do that for probably thirty new people since. A lot of us are good at our jobs because of you. Thank you.

Work anniversary messages from a manager

Coming from a manager, an anniversary note carries more weight than it does from anyone else. People want to know their manager noticed. That means a concrete example matters even more here. It also means keeping it separate from feedback. An anniversary message is not the place to mention goals for next quarter.

• Happy work anniversary. The care you put into the client handover this spring didn’t go unnoticed, and I wanted you to hear that from me.
• I’m lucky to have you on this team. Thanks for another year of being the person I can hand anything to.
• Watching you grow into leading the design reviews has been one of the best parts of my year. Happy anniversary.
• Thanks for always telling me the truth, even when it wasn’t what I wanted to hear. Happy anniversary.
• Your work this year made a lot of things possible for this team. Thank you, and I’m excited to see what you take on next.
• Happy anniversary! You’ve made a real difference here, and I don’t say that often enough.

Work anniversary messages from coworkers

Coworkers have more freedom to be casual. The best peer notes usually mention what it’s like to work next to the person day to day, which is something a manager can’t always see.

• Happy anniversary! Work is a lot more fun with you around.
• Thanks for always having my back on the rough weeks, especially that one in March. Congrats!
• Happy work anniversary to my favorite person to message during meetings.
• Cheers to you! Thanks for every time you jumped in to help without being asked.
• Another year of being the calmest person in the room. Happy anniversary!
• Happy anniversary. Glad I get to work with you, and not just because you share your good snacks.

For someone you don’t know very well

Sometimes the card comes around and you’ve only been on a couple of calls with the person. Keep it friendly and don’t pretend you’re closer than you are. People can tell when a message is padding.

• Happy work anniversary! I haven’t worked with you much yet, but everyone says great things.
• Congrats on your anniversary. Thanks for being so helpful the few times I’ve needed you.
• Happy anniversary! I hope the year ahead is a good one for you.
• Congrats on the milestone. Judging by how full this card is, you’ve made a lot of friends here.

Funny work anniversary messages

Humor works well when the joke is about the job, the office or work life in general. Jokes about how long someone has been “stuck” here, or about their age, land worse in writing than they would out loud.

• Happy anniversary! You’ve now sat through roughly a thousand meetings that could have been emails.
• Congrats on another year. You’ve officially been here long enough to know which printer actually works.
• Another year of “per my last email.” Happy anniversary!
• Happy anniversary! At this point you’re basically load-bearing.
• Your password has changed more times than your desk. Happy work anniversary.

Short work anniversary messages

For a team channel or a quick note on a shared card, short is fine. Just add one word that makes it theirs if you can.

• Congrats on another great year. Glad you’re here.
• Thanks for all you do. Happy anniversary!
• Here’s to many more years on this team together.
• Another year, another round of wins. Congrats!

Anniversary note mistakes

• Getting the number wrong. Check whether it’s three years or four before you write it in a card the whole team signs.
• Turning it into a performance review. Keep feedback and goals for another conversation.
• Jokes about being trapped or getting old. They’re easy to misread when they’re in writing.
• Copying the message above yours. On a shared card, write something of your own, even if it’s short.

Timing and where to send it

Send the note on the day if you can, or the working day before if the anniversary lands on a weekend. For a first or second year, a message in the team channel is usually plenty. For five years and up, a card the person can keep and reread later is worth the few extra minutes. Plenty of people keep cards like that in a desk drawer.

Gifts to go with a milestone card

For bigger milestones, some teams add a gift to the card. Pick something they’ll use at work every day, so the thank you sticks around after the card gets put away.

A leather desk mat suits someone who has spent years at the same desk and never treated themselves to anything for it. For the person who makes coffee at 9am and finds it cold at 11, an Ember Mug 2 keeps it warm through the meeting that ran long. If they’re moving into a lead role or spend a lot of time in client meetings, a leather padfolio looks sharp and gets used.

For a really big milestone from a close team, like ten or twenty years, a Pandora Moments bracelet is a gift that can keep growing. The team gives the bracelet now and can add a charm at the next milestone. That works best for someone you know would wear it, so ask a close coworker first if you aren’t sure.

Celebrating a work anniversary as a team

For a five or ten year milestone, a message from one person can feel thin. A card the whole team signs feels like a real thank you, especially when people from the early days add a memory too. Former teammates who’ve moved on are often happy to sign if someone asks.

You can make a virtual group card and share one link in Slack or Teams. People sign from their phone or laptop without making an account, and you can read everything before it goes out. On LittleSurprise you can start a card in about a minute, and on paid plans you can choose when it opens, so it’s waiting for them on the anniversary morning.

If the anniversary lines up with the end of a big project, the list of thank you messages for coworkers has more ideas. And when the team is celebrating birthdays too, there are plenty of birthday messages for coworkers to borrow from.