What to Write in a Farewell Card for a Colleague
A farewell card is harder than it looks because two things are true at once: you are pleased for them and you do not want them to go. Most cards pick one and sound either forced or faintly resentful. The good ones hold both, which is easier than it sounds — you just say so directly.
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Where the words can go
The same sentence, as a page they keep.

Thank you for shielding us from a great deal of nonsense we never found out about. I noticed anyway. Good luck — they are getting someone who is very hard to replace.For your manager
Where to start
If you are staring at a blank card
Say both halves out loud
"I am thrilled for you and extremely annoyed about it" is a better opening line than anything on a list of farewell quotes, because it is what everyone is actually thinking.
Pick the specific thing you will miss
Not "your energy." The coffee run at half past three. The way they rewrote your slides without being asked. The fact that they always knew which meeting could be an email.
Tell them what they were good at
People leaving a job are often unsure whether they were any good at it. If you know they were, say which part. That sentence tends to travel with them into the next place.
Leave the door open plainly
"Please stay in touch" is what everyone writes and nobody acts on. "I am going to message you when I am stuck on a pricing problem, so be warned" actually happens.
Use these, or start from them
Example messages
You have been the best part of this job for four years and I am furious that you are going somewhere better. I will miss the half-three coffee and the way you could tell I was stuck before I said anything. Go and be brilliant, and answer your phone when I call about something trivial.
You arrived not knowing what you were doing and you are leaving as the person everyone asks. I got to watch that happen, which is the best part of this job. Whoever gets you next is lucky, and I have told them so.
Thank you for shielding us from a great deal of nonsense we never found out about. I noticed anyway. Good luck — they are getting someone who is very hard to replace.
We did not overlap much, but you were unfailingly kind every time we did, including the week I clearly had no idea what I was doing. That is not nothing. All the best.
I am sorry it ended this way. What I will remember is the work you did on the migration, which was the best thing anyone shipped that year. That does not change. Keep in touch.
Worth knowing
What makes a farewell card fall flat
"Good luck in your next adventure"
It is on roughly half the cards they will receive. If you use it, put something specific in front of it so it reads as a sign-off rather than the whole message.
Making it about the company
"You will be a loss to the business" is a sentence about the business. "I will miss you" is a sentence about them, and it is the one they want.
Overpromising contact you will not make
Better to write one real memory than a promise to get lunch that neither of you will schedule.
Why this works
The specific thing is the one they keep.
A farewell lands differently from a birthday because the person is about to lose their daily proof that they mattered here. In a fortnight the Slack messages stop and the meetings carry on without them. A card that names a specific thing they did is a portable piece of evidence that the years were real, which is why those are the cards people photograph and keep rather than recycle with the desk plant.
Questions
Common questions.
What do you write when you are not close to the person?
One honest, specific observation is enough, and it is better than a long message reaching for a closeness that was not there. Acknowledging the limit directly — "we only worked together on one project, but" — reads as sincere rather than distant.
Should a farewell card be funny or sincere?
Both, in that order. A joke opens it and a true sentence closes it. A card that is only funny can read as though you did not want to say anything real; a card that is only solemn can feel like a eulogy for someone who is very much still alive.
What if they are leaving on bad terms?
Keep it about the work and the person, not the circumstances. Naming one thing they did well is both kind and honest, and it avoids the trap of either pretending everything was fine or dwelling on why it was not.
Is a card enough, or should we do something more?
A card gets each person one line, which is why farewell cards read as a wall of signatures. If several people have something real to say, they each need room to say it. That is the gap a page each fills — everyone writes properly, and it still arrives as one thing.
Or give everyone a page instead of a margin.
Each person gets a private link and writes properly — or records their voice, which is the part people replay. It arrives as one illustrated book on their last day.
Start a farewell book