Work Anniversary Cards: How to Mark a Milestone So It Doesn't Feel Like an HR Email
Most work anniversaries are marked by an automated email and a LinkedIn notification. That's fine for year one. But when someone hits five, ten or twenty years, the people who've worked alongside them have a lot to say — and a group card is the easiest way to collect it.
Which anniversaries are worth a card?
There's no rule, but the round numbers are the natural moments: 1, 5, 10, 15, 20, 25. A first anniversary is a nice touch for someone who joined during a rough patch or has made a big impact quickly. Beyond that, a card every year can start to feel routine — save it for the milestones and it stays special.
What to write
The best anniversary messages look back. Mention a project, a moment, or a habit of theirs that the team relies on. Long-tenure colleagues are often the ones who remember how everything works, and that deserves saying out loud.
- →"Ten years! I still remember you walking me through the old system on my first day. Thank you for a decade of patience."
- →"Five years of you being the person everyone asks first. Happy anniversary — we'd be lost without you."
- →"Happy work anniversary! The office wouldn't be the same without your Friday playlist."
- →"Twenty years is remarkable. Thank you for everything you've built here, and for making it a better place to work."
For big milestones, it's worth reaching beyond the current team. Former colleagues, people who've moved departments, or long-standing clients often love being asked to add a message — and they're the ones whose words tend to mean the most.
Organising it
Start a week or two early
Anniversaries are known well in advance, so there's no need for a last-minute scramble. Extra time means more people sign.
Pick a Work Anniversary template
There are plenty to choose from, or add a photo from their early days for the cover if you can find one.
Share the link beyond the immediate team
Anyone with the link can sign without making an account, so it's easy to include people across the company.
Schedule it for the day itself
Set the card to reveal on the anniversary date, so it arrives right on time even if you're busy that morning.
Looking for a ready-made starting point? See our free work anniversary cards.