Back to blog
Paid Ads Pricing · 3 min read · By Dev Soni · Updated 26 Oct 2026

PPC Management Pricing Explained: Retainer, Percentage of Spend or Flat Fee?

Quick answer

Agencies usually charge one of three ways: a fixed monthly retainer, a percentage of ad spend (commonly somewhere around 10 to 20 percent), or a hybrid with a minimum fee. A fixed retainer with a clear scope suits most growing companies, because the agency is paid for results and work, not for spending more of your money.

When you compare agency quotes, the headline number is rarely comparable. One agency quotes a flat fee, another a percentage of spend, a third a setup fee plus a minimum. Here is how each model works and what to watch for.

Model 1: fixed monthly retainer

You pay the same fee each month for an agreed scope: platforms, number of campaigns, creative volume and reporting. It is predictable and easy to budget.

  • Good for: companies with stable budgets who want a clear scope.
  • Watch for: a vague scope. Ask what is included each month, in writing.

Model 2: percentage of ad spend

The fee rises and falls with your budget, often somewhere in the 10 to 20 percent range, usually with a minimum monthly fee.

  • Good for: larger accounts where workload genuinely grows with spend.
  • Watch for: the built-in incentive to spend more. A good agency will still tell you to cut a campaign that isn't working.

Model 3: hybrid

A base retainer plus a smaller percentage above a spend threshold. It protects the agency on small budgets and keeps fees fair as you scale.

Model 4: performance-based

Paying per lead or per sale sounds ideal, but it only works when lead quality is measured carefully. Otherwise the agency is rewarded for volume, not for customers. Most serious agencies use it, if at all, as a bonus on top of a base fee.

What should be included in any model

  • Conversion tracking setup and checks.
  • Campaign structure, targeting and bid management.
  • Regular creative testing.
  • Search term and placement cleaning.
  • Reporting on leads, cost per lead and what changes next.

Costs that should be separate

Ad spend should be paid directly to Google, Meta or LinkedIn from your own account. Landing page builds, video production and CRM work are often quoted separately, so ask.

Why offshore pricing differs

An experienced team in India can usually offer the same senior attention as a US, UK or Canadian agency at a lower fee, because salaries and overheads are lower. The risk is a price so low it only works with junior staff. Use our offshore PPC checklist to tell the difference.

How to compare quotes fairly

  1. Write down the platforms, campaigns and creatives each quote includes.
  2. Check who owns the ad accounts and the data.
  3. Compare notice periods and setup fees.
  4. Work out your target cost per lead first with our cost per lead calculator, then ask each agency how they plan to hit it.

Want a quote with a clear scope and a cost-per-lead target?

Get a free ads & lead audit

Frequently asked questions

How much do agencies charge to manage Google Ads?

Pricing varies widely by market and scope. Common models are a fixed monthly retainer, a percentage of ad spend (often around 10 to 20 percent), or a hybrid with a minimum fee. Ad spend is paid to Google separately.

Is percentage of ad spend a fair pricing model?

It can be for large accounts where work grows with budget, but it gives the agency an incentive to spend more. Ask how they decide when to cut budgets.

Why are offshore PPC agencies cheaper?

Lower salaries and overheads. Quality depends on who actually runs your account, so check seniority, reporting and account ownership rather than price alone.

Keep reading