Google Ads Management Costs in the UK: Fees, Ad Spend and What's Fair
Google Ads costs a small UK business two separate things: the ad spend you pay Google for clicks, and a management fee if someone runs the account for you. Fees are usually flat monthly, a percentage of spend or a mix. A fair arrangement shows both numbers separately, keeps the account in your name and lets you leave on short notice.
What is the difference between ad spend and the management fee?
Ad spend is the money Google charges for your ads, and the management fee is what you pay a person or agency to set up and run the account. They should never be blurred together. Ad spend should go on your own card, in your own Google Ads account, so you can see every penny Google takes. The management fee pays for the work: choosing search terms, writing ads, excluding wasted searches, setting up call and form tracking and reporting what came in.
If a quote gives one monthly figure "including ads", ask how much of it reaches Google. Without that split you cannot judge whether the fee is fair or how much advertising you are actually buying.
How do agencies charge for Google Ads management?
Agencies charge in one of four ways, and each has a trade-off for a small business:
| Fee model | How it works | Works well when | Watch out for |
|---|---|---|---|
| Flat monthly fee | Same fee whatever you spend | Small local accounts with steady budgets | Check what work is included each month |
| Percentage of ad spend | Fee rises and falls with your budget | Large accounts where work grows with spend | Rewards the manager for spending more |
| Flat fee plus percentage | A base fee with a percentage above a set spend | Accounts that scale up in busy seasons | Can be hard to predict the bill |
| Set-up fee plus monthly | One-off build, then ongoing management | New accounts that need tracking built properly | Make sure the set-up is yours to keep |
At Oski Marketing our Google Ads management starts from £600 a month plus ad spend, on a rolling contract, with ad spend paid to Google directly. That is one example of a flat fee, so compare it with other quotes on what work is done each month.
How does a Google Ads budget actually work?
You set an average daily budget and Google spreads it across the month, sometimes spending more on busy days. Google states that a campaign might spend up to twice its average daily budget on a given day, but that across a month you will be charged no more than 30.4 times the daily budget.
That gives you a simple way to set a limit you can live with:
- Decide the most you are willing to pay Google in a month.
- Divide it by 30.4 to get your average daily budget.
- Enter that as the daily budget on your campaign.
- Check spend weekly for the first month against enquiries received.
If you run several campaigns, each has its own budget, so add them up.
How much should a local trade start with?
Start with a budget that is small enough to lose without pain but large enough to collect a few weeks of real enquiries, and work out the number from your own job values. A useful test is: how many booked jobs would this month's spend plus fee need to bring in to cover itself? If the answer is more jobs than you could handle, the budget is too big. If it is a fraction of one job, it may be too small to learn anything.
A plumber in Harrow will get more from a small budget spent on a handful of urgent searches ("emergency plumber", "boiler repair") in the postcodes they cover than from a larger budget spread across every plumbing search in London. Two settings matter a lot here. First, location: by default Google targets people in, regularly in, or who have shown interest in your chosen area. For a local trade, choosing "Presence" (people in or regularly in your area) is often a better fit. Second, call tracking, so you know which ads made the phone ring. Our beginner's guide to Google Ads for tradespeople explains these settings step by step.
Who should own the Google Ads account?
You should, every time. The account should be created with your business's Google login, with you holding admin access. Google's access levels give admins the power to give account access, change access levels and remove users. An agency should be added as a user or linked through its manager account, never set up as the only admin.
If you ever part ways, an admin on your account can remove the agency's link from Admin, Access and security, Managers, as described in Google's help page on unlinking manager accounts. Your campaigns, history and conversion data stay with you. If the account belongs to the agency, all of that leaves with them, and you start again from nothing.
What does a fair management fee include?
A fair fee includes ongoing work you can see, not just a monthly report. At minimum, expect:
- Conversion tracking for calls and forms, checked to be working.
- Regular review of the search terms that triggered your ads, with irrelevant ones excluded.
- Ads and landing pages that match what people searched for.
- Location and schedule settings that match where and when you work.
- A plain report that shows spend, enquiries and cost per enquiry.
If your report shows impressions and clicks but nothing about calls or forms, ask why. Our list of common Google Ads mistakes shows what goes wrong when these basics are skipped.
How do you tell if your Google Ads fee is too high?
Your fee is too high when the work behind it is invisible or the ads cannot be linked to enquiries. Compare the fee with the ad spend and the results together. A small account with a fee far larger than the ad spend leaves little money actually reaching customers. A fee that is low but buys no tracking or search term checks can waste far more in spend than it saves.
Put your total monthly cost (fee plus spend) next to the number of booked jobs that came from ads. Our guide to digital marketing costs shows how to work out your break-even point with your own numbers.
What to do this week
- Log in to Google Ads and check you are listed as an admin on your account.
- Look at Admin, Access and security and note every person and manager account with access.
- Check your location setting is "Presence" if you only want people in your area.
- Open the search terms report for the last 30 days and list any searches that were not for work you do.
- Ask your manager, if you have one, to confirm in writing the fee and the ad spend as two separate numbers.
Frequently asked questions
Should I pay a percentage of ad spend or a flat fee?
For a small local account, a flat monthly fee is usually easier to understand and does not reward the manager for spending more of your money. A percentage can make sense for large accounts where the work grows with the budget. Whichever you choose, the fee and the ad spend should be shown separately.
Can Google Ads spend more than my daily budget?
Yes, on individual days. Google says a campaign might spend up to twice its average daily budget on a busy day, but over a month you will not be charged more than 30.4 times the daily amount. Set the daily budget from your monthly limit, not the other way round.
What happens to my Google Ads account if I leave my agency?
If the account was created in your name and you have admin access, you keep it, including its history, and simply remove the agency's access. If the agency created it under their own login, you may have to start again. Check this before you sign.
Is Google Ads worth it for a small trade business?
It can be, when ads are limited to the searches and areas you actually serve and every call and form is tracked. Without tracking, you cannot tell which spend brought jobs. Start small, measure enquiries for a few weeks, then decide.