Farewell Email to Clients: What to Send Before Your Last Day

A farewell email to clients tells your external contacts you are changing jobs, names your successor, and keeps the handoff clean. Send it 3 to 5 business days before your last day. Keep it short, warm, and specific. Include your successor's name and email, your personal contact if you want to stay in touch, and one line of thanks tied to the actual work you did together.

You already know how to write to coworkers. Clients feel different. They are not inside the company Slack. They did not get the all-hands announcement. For them, this email is the news.

So the stakes are higher and the format tighter. One too-casual line and the handoff feels careless. One too-formal line and it sounds like a legal notice. The templates below hit the middle.

What a good farewell email to clients actually does

Here's the short answer. It does four things in under 180 words:

1. States the change clearly, with a date.
2. Names a specific person who will take over, with their email.
3. Thanks the client for something real that happened on the account.
4. Leaves a door open, with a personal email or a LinkedIn link.

That's the whole job. No life update. No career philosophy. No apology. The client needs a plan for Monday and a human they can reach. Give them both.

When to send it

Three to five business days before your last day is the sweet spot. Earlier and the client forgets. Later and they feel surprised, which is the one feeling you are trying to prevent.

One exception. If a project is in the middle of a cycle (a launch, a renewal, a deliverable due the week after you leave), send 7 days out and include the status in the handoff line. The extra lead time saves your successor from inheriting a fire.

Do not send on a Friday afternoon. The email will sit unread over the weekend and the client's first instinct Monday morning will be "wait, what?". Tuesday or Wednesday morning, their time zone, is best.

4 templates for different kinds of clients

Pick the one that matches the relationship. Edit the brackets. Keep the length.

Template 1: The warm, long-term client

Subject: A quick update from [Your Name]

Hi [First Name],

I wanted to let you know directly before it goes out through official channels. [Date] will be my last day at [Company]. I'm moving on to [one short phrase: a new role at X / a chapter outside of Y / an opportunity in Z].

Working on [the specific project or account] with you has been one of the better parts of my time here. The [specific win, e.g. "Q2 rollout" or "move to the new platform"] was something I'll carry with me.

[Successor Name] (cc'd) will be taking over the account. They've been briefed and already have the context on [the one or two things most alive right now]. You can reach them at [email].

If you'd like to stay in touch personally, I'm at [personal email] or on LinkedIn. No pressure either way.

Thanks for everything.

[Your Name]

Template 2: The newer or transactional client

Subject: Point-of-contact change on your account

Hi [First Name],

A quick heads up. My last day at [Company] is [date]. [Successor Name] (cc'd, [email]) will be your main contact going forward. They have your full account history and will reach out this week to introduce themselves.

Thanks for the work we did on [specific thing] this quarter. The team is in good hands.

Best,

[Your Name]

Template 3: The client who is actually a friend now

Subject: Big change for me

Hi [First Name],

Wanted to tell you myself before anything else goes out. I'm leaving [Company]. [Date] is my last day.

I've learned a lot from working with you, specifically [the specific thing, no vague "everything"]. [Successor Name] is picking up the account and is cc'd here. They are great, and I've walked them through everything.

Separately, I'd love to stay in touch. My personal email is [email]. Coffee or a call in a few weeks once the dust settles?

[Your Name]

Template 4: The client in the middle of a live project

Subject: [Project Name] handoff and my last day

Hi [First Name],

Two things in one email. First, [date] will be my last day at [Company]. Second, here is how [Project Name] continues without me.

[Successor Name] (cc'd) is taking over. We've already handed off:

• [The current status in one line]
• [The next milestone and date]
• [The one open question or risk you are leaving behind]

They'll send a short intro note this week and set up a 20-minute sync to meet you. Everything you've shared with me is documented in [the shared folder / Notion / Drive].

Thanks for the trust so far. The project is in good hands.

[Your Name]

The one thing most people miss

Before you draft a single word, you need the list. Not every client needs a personal email. Some get the generic one from the company. Some get nothing. A small number get the warm, specific version from you directly.

This is where most people stall. They open their inbox and start scrolling. They remember the loud clients and forget the quiet ones. The quiet ones are often the ones who would most appreciate a note.

The simplest way to do this is to pull your calendar from the last 6 to 12 months and look at who you've met with. The people who show up repeatedly are your real client list. Your inbox lies; your calendar does not. If you'd rather not do that by hand, It Was Great Working With You turns a calendar export into a ranked goodbye list in a few minutes.

How to handle the cc

Always cc your successor. That is the whole point of the email. But do a 20-minute call with them first so the cc is not the first time they are hearing about the client. If they are new to the account, cc your manager too, so the client has a second escalation path for the first few weeks.

Do not bcc anyone. If you want someone to see the email, write to them separately. Hidden recipients on a goodbye note always feel wrong.

What to say about where you are going (and what not to)

This is what most people get wrong. They either over-share (full new-company name, title, start date, LinkedIn link to the new team) or under-share (a vague "moving on to new opportunities").

The middle lane: one short phrase. "I'm moving to a new role in [industry or function]." "I'm taking some time before the next thing." "I'm joining a smaller team at [company], if that is public yet." You do not owe clients the full story, especially if your new role competes with your current employer. A short phrase closes the loop without starting a side conversation.

If your new company is a competitor, say nothing specific. Say "I'm moving on" and let your successor's intro email do the talking. Your legal and manager will thank you.

The small things that make the email land

Use the client's first name. Always. "Hi [First Name]" is warmer than "Hi all" even in a mass send, and most email tools do this automatically.

Reference one specific thing. "The Q3 roadmap work" or "the migration last spring" or "our first call back in February." Specificity is the single biggest difference between an email the client remembers and one they archive. Keep it to one specific thing per note. More than one feels performative.

Say thank you once, not three times. One sincere thanks is heavier than three.

While you are drafting these, it is also worth thinking about who to add on LinkedIn before your last day. Your warm clients belong on that list, and the connection request is cleaner before your email signature changes.

Handling replies

You will get three kinds of replies.

Short acknowledgments ("Thanks, good luck"). Reply with one line and move on.

Warm notes with a specific memory. These deserve a specific reply back. Not a form thank-you. Three sentences tied to what they said. If you need a longer frame for this, see the templates for replying to farewell messages at work, which apply here too.

Panicked questions ("What about the thing we talked about last week?"). Loop in your successor directly, give them the one-paragraph answer in the thread, and let the handoff take over. Do not try to solve it yourself on your last Thursday.

One last thing before you hit send

Read the email out loud. Not in your head. Out loud. If any sentence makes you cringe, cut it. The farewell note should sound like you on your best day, not a template you lifted. The templates above are a frame. Your voice is what fills them.

Then make sure your farewell list is actually complete. The clients you forget to email are the ones who notice.