Short answer: you should own the ad accounts, the payment method and the data, and your agency should work inside them as an invited user or partner. If the agency owns the account, you are renting your own campaign history, audiences and conversion data from them, and leaving becomes a negotiation instead of a click.
This comes up on almost every first call we have with a business that has used an agency before. The pattern is the same: the previous provider created the Google Ads account under their own manager account, or ran Meta ads through their own business profile, and when the relationship ended the owner was left with an invoice archive and nothing else. Below is how ownership works on each platform, what to ask for, and what to write into the agreement.
Why does ad account ownership matter?
An ad account is not just a login. It holds three assets that take months to build and cannot be exported in a useful form:
- Learning history. Bidding algorithms, quality signals and audience data are tied to the account. A new account starts from zero, which on small budgets can mean weeks of weaker results.
- Conversion data and audiences. Pixel events, remarketing lists, customer-match lists and lookalike seeds live inside the account or its linked assets.
- Billing and compliance standing. Policy history, payment verification and spending limits belong to whoever the account belongs to.
If the agency owns it, all three belong to the agency. That is not necessarily malicious. Some agencies use one shared setup out of habit. But the risk lands on you, not on them.
How does ownership work on Google Ads?
Google Ads has two layers. A standard account is where campaigns and billing live. A manager account (formerly MCC) is a container agencies use to see and manage many standard accounts at once.
The clean setup is simple. You create the standard account yourself, using a business email you control, and add your own payment method. Then you invite the agency’s manager account to link to it, or add the agency’s staff as users with the access level they need. If you part ways, you unlink them and the account carries on with its history intact.
The risky setup is the reverse: the agency creates the account from inside their own manager account, and you are given a user role at best. In that case ask two questions. First, who is the administrator on the account? Second, whose payment profile is attached? If the answers are the agency, you do not own it.
A quick self-check takes under five minutes. Sign in, open the account’s access and security page, and look at the list of users. You should see your own email at administrator level. Then open billing and confirm the payment profile carries your company name. If either is missing, fix it before anything else.
How does ownership work on Meta Ads?
Meta organises assets inside a Business Portfolio (still widely called Business Manager). The portfolio owns the ad account, the Facebook Page, the Instagram account, the pixel or dataset, and the catalog. Whoever owns the portfolio owns those assets.
The right setup: your business creates and verifies its own portfolio. The agency is added as a partner and is given access to specific assets, or its people are added with the roles they need. You remain the portfolio’s admin, and you can remove access in a few clicks.
The common failure: an agency creates the ad account in its own portfolio and then requests access to your Page. The Page is yours, but the ad account, pixel data and audiences are theirs. If you later move, the audiences and pixel history stay behind. Sharing a pixel or dataset can sometimes be arranged, but it is far easier to start in the right place.
One more detail: make sure at least two people at your company are admins on the portfolio. A single admin who leaves the business, or whose personal profile gets restricted, can lock the whole company out.
Who should pay the platform?
There are two billing models, and both can be legitimate if they are transparent.
- Your card on the platform. You pay Google or Meta directly. The agency invoices only its management fee. You can see every cent of media spend in the platform and the agency has no incentive to blur it.
- Agency-billed media. The agency pays the platforms and re-invoices you, sometimes with a markup or a percentage. This is common with larger spend or credit-line arrangements, but you need to know whether you are being charged at cost plus a stated fee, or at an undisclosed markup.
For small and mid-sized budgets, we recommend model one almost every time. It keeps the spend verifiable and the ownership clean. If you are comparing fee structures at the same time, our guide to paid media agency pricing models explains why percentage-of-spend fees need extra scrutiny.
What should the contract say?
You do not need a long legal document. These points, in plain language, remove most of the risk:
| Clause | What to write |
|---|---|
| Account ownership | All ad accounts, pixels, audiences and creative assets created for the engagement are owned by the client. |
| Admin access | The client keeps administrator access at all times, with at least two named admins. |
| Payment | Media spend is billed to the client’s payment method, or a markup is stated in writing. |
| Exit | On termination, the agency removes its access within a stated number of days and hands over a report export, creative files and naming conventions. |
| Reporting | The client can view the live platform dashboards, not only agency-produced PDFs. |
If an agency pushes back on any of these, treat that as information. Good agencies already work this way because it makes them easier to trust. We cover other checks worth running before signing in how to vet a paid media agency before you sign a contract.
What if you are already in the wrong setup?
Do not panic and do not burn the relationship. Take these steps in order:
- Create your own Google Ads account and your own Meta Business Portfolio now, even if they stay empty for a while.
- Ask the agency to export historical reports, the list of audiences and the conversion actions they track, so you hold a record.
- Ask them to add your company as an owner or admin on the existing assets, where the platform allows it.
- Plan a migration at a quiet moment, not during a peak sales period. Duplicate the best campaign structure into the new account and run both briefly if the budget allows.
Expect a dip when you move, because the new account has to relearn. That is the cost of having waited, and it is a good reason not to wait longer.
A short ownership checklist you can use today
- Your company email is the administrator on every ad account.
- Your company’s payment method, or a documented agreement, covers spend.
- Your Business Portfolio is verified and has two admins.
- Pixels, datasets and conversion actions sit inside assets you own.
- You can see live dashboards without asking anyone.
- The contract names the exit process.
If you are also unsure whether results are being reported honestly, the two issues often travel together. Our Google Ads account audit process shows what we look at first when we inherit an account, and ownership is always check number one.
The bottom line
You would not let a contractor build your shop and keep the deed. The same logic applies to ad accounts. Own the accounts, own the payment, own the data, and let the agency prove its value through results while holding only the access it needs. If it cannot do that, find one that can.