Leaving Is a Project, Not an Email

Most owners get this wrong in the same way. They decide to leave, then tell the agency, then start working out the logistics.

That order costs them. The moment you give notice, three things change. Your account stops being a relationship to protect and becomes a departure to manage. Access requests start taking a fortnight. And the person who used to answer within the hour develops a full diary.

None of that is necessarily malicious. An agency losing a client reallocates attention to the ones it’s keeping, exactly as you’d expect. But the practical effect is the same: everything you need becomes harder to get precisely when you need it.

So do the work first. This guide covers what to secure before you say anything, how to open the conversation, and what the first ninety days with a new agency actually look like.

It assumes you’ve already decided. If you haven’t, weigh the cost of leaving against the cost of staying first, because switching is expensive and it isn’t always the right answer.

---

Four Things to Do Before You Give Notice

Give yourself two or three weeks. Nothing here signals your intention, and all of it is defensible as routine housekeeping if anyone asks.

1. Export everything, while relations are normal. Performance history at maximum date range, conversion data, audience definitions, creative assets, keyword and placement lists. Download it rather than screenshotting it, in CSV where the platform allows. Data sitting on your own machine can’t be withdrawn later.
2. Establish who owns the accounts. Not who has access, who owns them. If your ad accounts sit inside the agency’s manager account rather than your own, you’re negotiating for something you assumed was yours. Sort out admin access now, and read what your contract says about ownership before you rely on it.
3. Find the date. Your notice period, your renewal window, and the exact wording of how notice must be served. Some contracts require registered post, which quietly adds a week. Check how the renewal clause works and what else the contract commits you to.
4. Write the performance case. Dates, figures, specific unmet commitments. Not adjectives. You may never use it, but a documented record is the difference between asking to leave early and having grounds to.

Do these four and you enter the conversation holding your own data, knowing your dates, and carrying evidence. Skip them and you’re asking for permission.

---

How to Open the Conversation

Agencies almost always prefer a negotiated departure to a hostile one, because unhappy former clients talk and the industry is small. That preference is your leverage, and it disappears the moment you make the conversation adversarial.

Lead with the ask, not the complaint. “This isn’t working for either of us. What would it take to end it cleanly?” invites a proposal. A list of grievances invites a defence, and you’ll lose that argument because they know the platforms better than you do.

Ask for something specific. Waived notice, a reduced final month, or a documented handover in exchange for a clean exit. Vague goodwill produces vague results. A named concession gives them something to say yes to.

Keep the performance case in reserve. Bring it out if the answer is no, not before. Presented first it reads as an attack. Presented second it reads as a reason.

Confirm everything in writing. Every verbal assurance about transition, data or final invoicing goes into a follow-up email the same day. If it isn’t written down, it didn’t happen.

On enforceability: penalty clauses vary by jurisdiction and circumstance, and I’m not a solicitor. What I can tell you is that for most SMBs the cost of contesting a clause exceeds the cost of paying it, and agencies price their contracts knowing that. If the sums are large, take proper advice. If they aren’t, negotiate.

---

What Passive Resistance Looks Like

The obstruction that actually costs you rarely breaches the contract. It just slows everything down until your patience runs out.

• Requests that take weeks. Documents need “finding”. The person who knows is on leave. Each round trip burns a week of a notice period you’re paying for.
• Handover with no substance. A folder of PDFs rather than the reasoning. What was tested, what failed, and why the account is structured the way it is were never written down, because nobody ever had to.
• Access granted in pieces. Google Ads this week, Analytics next, the Tag Manager container eventually. Each gap is a place something can go missing.

The counter is a single dated list. Every asset, every account, every document you expect, sent once with a deadline, then chased in writing against that same list. It converts a series of forgettable requests into a visible record of what’s outstanding, which is much harder to ignore.

This is also why step one matters. If you exported before giving notice, a slow handover is an inconvenience rather than a crisis.

---

Want a Second Pair of Eyes on the Exit?

I’ll read the contract, tell you where your leverage actually is, and list what to secure before you give notice.

Request Your Free Assessment →

---

The First Ninety Days With the New Agency

This is the part nobody prepares for, and it’s where switching most often gets judged a mistake.

Performance will dip, and that’s normal. A new agency needs roughly a quarter before it’s making decisions from your data rather than its assumptions. Campaigns re-enter learning periods. Bid strategies reset. If you judge the new relationship on month one you’ll conclude the old agency was better, which is exactly the false comparison a difficult handover creates.

Hand over the failures, not just the wins. The most valuable thing you own is the record of what’s already been tried and didn’t work. Without it, your new agency will spend your budget rediscovering it. If the outgoing agency never documented this, write down what you remember. Partial is better than nothing.

Set the standard on day one. The single biggest advantage of switching is that you get to define what good looks like before anyone’s feelings are involved. Name the metrics, the figures, the reporting format and the review dates at the start. A written specification at onboarding is worth more than a year of quarterly complaints.

Meet the people who’ll actually do the work. The pitch team is rarely the delivery team. Ask now, while you have leverage, and test them against the questions any competent account manager can answer.

Owners who switch and end up in the same position two years later almost always skipped this section. They fixed the agency and left the relationship exactly as it was.

---

What the Exit Terms Told You

One thing worth carrying into the next relationship: the exit terms you’re escaping now were visible on the day you signed. So were the ones in the contract you’ll sign next.

Read them first next time. What the clauses actually mean, and which ones to negotiate, is the shortest route to never doing this again.

---

Before You Send the Email

I’ll read your contract and tell you where you actually stand.

What you receive:

• Your notice period, renewal window and how notice must be served
• Which accounts and assets you own, and which you’ll need to negotiate for
• A dated handover list to send on the day you give notice
• Where your negotiating leverage genuinely is, and where it isn’t

If the contract turns out to be reasonable and the relationship salvageable, I’ll tell you that instead. Leaving is expensive and it isn’t always the answer.

Request Your Free Assessment →