How to take over a Google Ads account without breaking it

Take over a Google Ads account in a fixed order: secure ownership and access, snapshot everything, audit the conversion tracking, check the settings that quietly waste money, and only then start changing campaigns, slowly. Accounts break in handovers because the new manager rebuilds structure and bids in week one, before finding out whether the conversion numbers steering everything were real.

I take over accounts for a living, and the same faults show up again and again. Here is the order I work in, and why each step comes where it does.

• 1Confirm the client owns the account and secure admin access
• 2Snapshot settings, budgets, bid strategies and change history
• 3Audit every conversion action before judging any campaign
• 4Check network settings and the search terms report
• 5Verify the tags in the page source and the GTM container
• 6Change one thing at a time, because bidding re-learns slowly

How do I get access to a Google Ads account without breaking it?

The mechanics first, because they take ten minutes and get argued about for weeks. Google Ads has five access levels: email-only receives notification emails and reports, billing can view and edit payment information, read-only can view campaigns and use the planning tools, standard can edit campaigns, and admin adds granting access, changing access levels and cancelling invitations. A manager doing the work needs standard at least and usually admin, and read-only is what you hand an outside reviewer.

The route in is an invitation rather than somebody's password. An existing admin goes to Access and security in the Admin menu, selects the plus button, enters the new manager's email address, chooses the access level and sends the invitation, which the invitee accepts with their own Google account. Nothing about the account itself moves. Google also recommends keeping more than one administrator, since a single admin who becomes unavailable can take your tag management with them.

If the new manager is an agency, the second route is a manager account, still called an MCC after the old My Client Center name. It is a separate Google Ads account that client accounts link to, so the agency signs in once and works across all of them, and Google is explicit that the client's own users carry on signing in as usual and an administrator can unlink from the manager at any time. That is the reason to prefer it, because the account, the billing history, the conversion data and the change log stay in the business's own Google account while the agency relationship becomes a link you can cut in a minute.

What to refuse is the arrangement where an agency creates the account under its own login and calls it yours.

Who should own the account?

The client. Google Ads has five access levels, from email-only up to admin, and the business paying for the clicks should hold admin on an account it owns, with any manager or agency working through linked access. If you are inheriting an account that the previous agency owns, getting ownership transferred is the first job, before any optimisation. An agency that resists handing it over is telling you something, and is my ads agency doing a good job covers what else to look for.

What should you record before changing anything?

Everything, while it still exists. Export or screenshot the campaign settings, daily budgets, bid strategies, the full list of conversion actions and their settings, and the change history. This costs twenty minutes and buys you two things: a before picture to judge your own work against honestly, and the ability to roll back when a change makes things worse. You can also pull the account's public ad history from the Ads Transparency Center at adstransparency.google.com, which shows every advertiser's ads, last-shown dates and regions with no login, a useful record of what the previous manager was actually running. I explain that tool properly in how to check if a company is running Google Ads.

Read the change history while you are in there, because it is the closest thing to a diary of how the account reached this state. It lists changes made to the account, campaigns and ad groups over the past two years, with the email address of whoever made each one, mapped against impressions, clicks, conversions and cost, so you can line up the week a bid strategy changed with the week performance fell over. It sits under Change history in the Campaigns menu, and months of silence in an account paying a monthly fee tell you what you have inherited before you open a campaign.

Why audit conversion actions first?

Because smart bidding, Google's automated bidding, optimises toward whatever the conversion action counts. If the action is broken, the machine has been diligently optimising toward garbage, and every performance number in the account is fiction.

That account looked brilliant on paper. For each conversion action, establish what actually triggers it, and check the counting setting: Google offers one-per-click or every, and lead generation should use one-per-click so a nervous visitor submitting a form twice counts once. If the term itself is new to you, what a conversion action is covers the settings one at a time. The full self-check for whether reported conversions are real is in the three receipts.

• Ownership of the account sits with the business · good

  Not with the agency, not with a personal login. This is the one that is painful to fix later.

• A dated screenshot of current performance · good

  So the effect of your changes can be separated from the season.

• Every conversion action and what it fires on · problem

  Audit these first. Everything downstream is judged against them.

• The existing settings, exported before edits · good

  You cannot undo a change you did not record.

A takeover goes wrong in the first week or not at all. Record the account you inherited before you start improving it, or you will never be able to prove you did.

Which settings quietly waste money?

Two places. First, networks: a Search campaign can quietly opt into the Display Network and Search Partners through checkboxes in campaign settings. In takeovers I did in 2026, between 43% and 59% of spend was leaking to the Display network as junk placements, mobile games, apps and unrelated websites, on campaigns everyone believed were Search only. Second, match types: broad match keywords expand your reach well beyond what you typed, so read the search terms report to see the actual queries you paid for, and expect to add negative keywords regularly to keep it honest.

How do you verify the tracking actually works?

Without waiting for a developer. View the website's page source and search for gtag, GTM- and AW-, which show you the Google tag, any Google Tag Manager container, and Google Ads conversion IDs. Then open the container itself: every GTM container is publicly readable at googletagmanager.com/gtm.js?id=GTM-XXXX, and you can search that text for AW- to see which conversion tags really exist inside it. The mechanics of that file, and what it can and cannot tell you, are in what a Google Tag Manager container is.

Check before you condemn, though. Of 70 tracking problems I suspected across takeovers, 30 proved false once I looked inside the GTM containers. And if the account was healthy until recently, ask when the website was last relaunched, because relaunches commonly break tags and redirects; that failure pattern has its own page.

What should I leave alone in the first few weeks?

Leave the bid strategies, the campaign structure and any conversion action that is already firing on a real enquiry. Smart bidding needs a stable history to bid against, so renaming campaigns, shuffling keywords into new ad groups or switching bid strategy in week one wrecks the comparison you need to prove your own work later. Leave budgets where they are unless money is visibly burning, and resist deleting the previous manager's campaigns, because a paused campaign is evidence and a deleted one is an argument you cannot win. The narrow set worth fixing on day one is a broken conversion tag, a broken remarketing tag, a geographic target that is plainly wrong, and negatives for search terms wasting money this week.

How fast should you change things?

Slowly, with one exception. Smart bidding re-learns slowly after changes, so a burst of simultaneous edits both destabilises performance and makes it impossible to tell which change did what. Fix the measurement, then adjust one meaningful thing at a time and let the data settle. The exception is a broken remarketing tag: audiences decay daily while a site is untagged and those days are unrecoverable, so restore tagging immediately even while everything else moves at a deliberate pace.

How do I document the handover?

Write one page and send it before you make your first change. Name the account ID, who holds which access level, the manager account it links to, the date you took over, every conversion action and what it fires on, the budgets and bid strategies, and where the measurement lives, usually a container ID beginning GTM- and a conversion ID beginning AW-, then attach the dated performance screenshot. It reads like admin, and it earns its keep in month three when someone asks whether a number moved because of you or because of the season.

If you are hiring someone to do all this rather than doing it yourself, how to brief a Google Ads freelancer includes the one interview test that shows whether a candidate would have caught the 75% account.