How much do Google Ads agencies charge in the UK? (2026 prices)

Ask three Google Ads agencies what they charge and you will get three different shapes of answer, which is part of the problem. The pricing is deliberately hard to compare. Here is what the market actually looks like in 2026, what each pricing model really costs you, and the questions to ask before signing anything.

The three ways agencies charge

1. Flat monthly retainer

The most common model for small businesses: a fixed fee, typically £400 to £1,500 a month, for managing your account. Good agencies cap the number of accounts each manager holds so yours gets real attention. Poor ones put a junior on forty accounts and send you a report once a month.

2. Percentage of ad spend

Usually 10 to 20 percent of whatever you spend with Google, often with a minimum fee. On £5,000 a month of spend that is £500 to £1,000. The awkward detail: the agency earns more when you spend more, whether or not spending more is good for you. Ask how they handle that conflict. Good ones have a straight answer.

3. Hybrid and performance deals

A lower base fee plus a bonus tied to results. Sounds aligned, but read what counts as a result. If the bonus is paid on conversions Google reports, and tracking is loose, you can end up paying a bonus on enquiries that never happened.

The extras that rarely appear in the pitch

• Setup fees of £300 to £1,000 for building the account, sometimes justified, sometimes just a joining fee.
• Landing page work billed separately, often at £80 to £120 an hour.
• Minimum contract terms of three to six months, with the exit conversation you would expect.
• Reporting dashboards you lose access to the day you leave.
• Account ownership. Some agencies build your campaigns inside their own Google account. If you leave, the history stays with them.

The sum that reframes the decision

Take a typical small business spending £1,500 a month on clicks with a £750 retainer. A third of the total budget never reaches Google. Over a year that is £9,000 in fees against £18,000 of actual advertising. The retainer has to make the ads at least 50 percent more effective just to break even. Sometimes it does. Often, on a simple local account, the work being done is an hour or two a week of routine checks.

When an agency is genuinely worth it

Fairness matters here. A good agency earns its fee when the account is complex: large catalogues, multiple locations, heavy competition, or spend north of £10,000 a month where small percentage gains pay for the retainer. Strategy, creative and landing page testing are also genuinely human skills.

When software is the better buy

Most small business accounts are not complex. They need tracking set up properly, campaigns built sensibly, search terms read weekly, waste blocked, budgets steered towards what works, and someone watching for problems. That is routine, repeatable work, which is exactly what software is good at.

AdKing does that daily work for £99 a month flat, regardless of your spend. It connects to an account you own, proposes improvements with the reasoning attached, and applies only what you approve. The comparison is stark: a year of retainer at £750 a month is £9,000. A year of AdKing is £1,188, and the account, the data and the history stay yours.

If you are weighing up an agency quote right now, get three prices, ask the account ownership question, and then run the sum above with your real numbers. For a growing number of businesses the answer is to bring it in house, with software doing the watching.