How to price retainers at your PPC agency.

What's the biggest mistake PPC agencies make with retainer pricing?

The biggest mistake is pricing based on a simple percentage of ad spend. This links your income to a cost you don't control and hides your true profitability. Your PPC agency retainer pricing should be a fee for your expertise and work, separate from the ad budget you manage for the client.

Think of it like a mechanic. You pay them for their skill and labour to fix your car. You don't pay them a percentage of the cost of the new engine parts. The parts are a separate cost. For PPC, your team's time is the labour. The ad spend is the parts.

Pricing on ad spend alone creates two problems. First, if a client cuts their budget, your income drops even if your work stays the same. Second, it doesn't account for the complexity of the work. Managing a £5,000 budget can sometimes be harder than a £50,000 one.

How do you build a profitable PPC retainer pricing model?

Start with your internal costs and a target profit margin. Calculate the fully-loaded cost of the team member managing the account, including salary, benefits, software, and overheads. Then, add your desired profit margin on top. This creates a baseline fee for a set amount of work or service level.

Let's break it down. Say a PPC manager costs you £60,000 per year fully loaded. That's £5,000 per month. If you want a 50% gross margin (the money left after paying your team), you need to charge £10,000 per month for their time. This is your cost-plus foundation.

Next, structure this into a clear monthly retainer pricing package. Define what the client gets for that fee: strategic oversight, campaign management, reporting, and optimisation hours. This moves you from selling hours to selling a managed outcome. Specialist accountants for PPC agencies can help you model these costs accurately.

Should you use hourly, project, or retainer pricing for PPC?

For ongoing management, an agency retainer model is almost always superior. It provides predictable revenue for you and predictable costs for your client. The retainer vs project pricing debate is about stability versus one-off work. Use project pricing for audits or initial setups, then transition to a retainer for ongoing management.

Hourly pricing caps your growth. You only earn money when your team is logged in. It also puts the focus on time spent, not results achieved. A retainer aligns better with value. You're paid to manage performance and hit targets, not just to work a certain number of hours.

Retainers build a partnership. They allow you to plan resources and invest in the client's long-term success. Project work is transactional. For sustainable PPC agency retainer pricing, the goal is to build a portfolio of reliable retainer clients.

What should be included in a standard PPC retainer package?

A standard retainer should include core strategic management, not just execution tasks. This means regular strategy reviews, performance reporting, bid and keyword optimisation, ad copy testing, and landing page recommendations. The exact mix depends on the retainer tier and the client's ad spend level.

Be specific. Don't just say "campaign management." List the activities: weekly budget pacing checks, bi-weekly search term reports, monthly performance deep-dives, and quarterly strategy workshops. This clarity prevents scope creep, where clients expect more work without paying more.

Always exclude certain items. Make it clear that new campaign builds from scratch, major website changes, or creative design work are outside the standard monthly retainer pricing. These are either billed as projects or require a retainer upgrade.

How do you factor ad spend into your retainer fee?

Ad spend influences the workload and risk, so it should influence your fee, but not define it. Use ad spend to tier your packages. A client with a £10,000 monthly budget typically needs less management than one with a £100,000 budget. Your fee should scale accordingly, but not at a straight percentage.

Create pricing tiers. For example, a "Growth" tier for budgets up to £20k per month, a "Scale" tier for up to £75k, and an "Enterprise" tier for £75k+. Each tier has a higher fixed monthly fee, reflecting the increased complexity, reporting needs, and strategic requirement.

This approach for PPC agency retainer pricing protects you. If a client's spend increases within their tier, your fee is stable. If they grow into a new tier, you have a clear conversation about upgrading their retainer to match the new workload.

What are common PPC retainer pricing models?

The three most common models are fixed-fee, fee-plus-percentage, and value-based. A fixed-fee retainer is a set monthly charge for a defined scope of work. This is simple and predictable. A fee-plus-percentage model combines a base management fee with a small percentage of ad spend, aligning some incentive with budget growth.

Value-based pricing ties your fee to the results you deliver, like a percentage of revenue generated or a bonus for beating ROAS targets. This is more advanced but can command higher fees. Most agencies start with a fixed-fee agency retainer model as it's easiest to manage and forecast.

In our work with agencies, we see the fixed-fee model as the foundation of stable finances. It makes cash flow predictable. Take our free Agency Profit Score to get a personalised assessment of your agency's financial health, including how well you're managing cash flow across Profit Visibility, Revenue & Pipeline, Operations, and more.

How much should a PPC agency charge per month?

Charges vary by agency size, location, and expertise, but typical management fees range from 10% to 20% of monthly ad spend for smaller budgets, often with a minimum fee. However, a better benchmark is an absolute fee. Many UK PPC agencies set minimum retainers between £1,000 and £3,000 per month.

For example, an agency might charge £1,500 per month to manage an ad spend up to £10,000. That's a 15% fee. For a £50,000 ad spend, the fee might be £4,000 per month, which is only 8%. The fee doesn't scale linearly, which is correct because the work doesn't either.

The key is that your monthly retainer pricing covers your costs and margin. If your minimum fee is £2,000, but it costs you £1,500 to deliver the service, you have a 25% gross margin. You need to decide if that's enough for your business goals.

How do you present and justify your retainer price to clients?

Frame the conversation around value and return on investment, not cost. Show how your fee compares to the potential revenue or profit you will help generate. For a client spending £10,000 on ads to acquire customers, your £1,500 fee is just a component of their customer acquisition cost.

Use a simple ROI calculation. "If we improve your conversion rate by 20%, that could generate an extra £X in sales per month. Our retainer is a fraction of that upside." This shifts the discussion from an expense to an investment. It's a core part of effective PPC agency retainer pricing.

Provide a clear service agreement that outlines everything included. Transparency builds trust. Clients are more likely to accept a higher fee if they understand exactly what they're getting and the expertise behind it.

How can you increase your retainer prices over time?

Build annual price increases into your contracts. A standard practice is a 5-10% increase each year, tied to inflation and increased expertise. This is easier than having a difficult conversation out of the blue. Start this practice from the beginning.

Demonstrate added value to justify increases. Show year-on-year performance improvements, new strategies you've implemented, or additional reporting you've added. If you've consistently grown their account, you have a strong case for your retainer vs project pricing model evolving in value.

Create upgrade paths. As you add new services (like integrating Google Analytics 4, offering competitor analysis, or managing Microsoft Ads), offer these as add-ons or higher-tier retainer packages. This gives clients a clear way to pay more for more value.

What metrics should you track to ensure your retainers are profitable?

Track gross margin per client. This is the client's fee minus the direct cost of the team member(s) working on it. Aim for at least 50-60% gross margin on mature retainers. Also, track utilisation rate – the percentage of your team's paid time that is billable to client retainers.

Monitor scope creep. Keep a log of any work done outside the agreed retainer. If this becomes regular, it's a sign you need to re-scope or increase the fee. Your PPC agency retainer pricing relies on clear boundaries.

Finally, track client lifetime value and retention rate. A profitable retainer client who stays for years is worth far more than a high-fee client who leaves after six months. Focus on building long-term, sustainable partnerships. If you'd like to benchmark your agency's performance across key financial areas, our Agency Profit Score gives you a personalised 5-minute snapshot of where you stand on profitability, cash flow, and operational efficiency.