How do I choose the right PPC agency?

Start with a written brief covering your economics, measurement and goals. Shortlist agencies with relevant business-model experience, ask questions that test their judgement and honesty, check who will actually do the work, and agree contract terms that keep accounts and data in your ownership.

How are PPC agencies usually paid?

Common models include a fixed monthly retainer, a percentage of ad spend, a performance-based fee, or a combination. Each creates different incentives. Whatever the model, fees should be itemised separately from media spend, and any performance element should be based on verified business data.

Should I own my Google Ads account if I use an agency?

Yes. The account, conversion tags and analytics should be created under your business and shared with the agency through access permissions. This keeps history, data and control with you if you change agency or bring work in-house.

What questions should I ask a PPC agency?

Ask how they would define conversions for your business, how they judge incrementality, what would make them recommend spending less, how they handled a disappointing account, and who exactly will work on yours. Listen for specifics and honest trade-offs rather than polished claims.

When should I hire a PPC agency instead of doing it in-house?

Consider an agency when spend is significant, tracking is complex, nobody internally has the time or depth, or you need cross-platform expertise quickly. An in-house owner can work well for modest, stable accounts if they have time for a disciplined weekly routine.

How to Choose a PPC Agency: Questions, Red Flags and Fit

What you are really buying

Ad platforms automate much of what PPC specialists once did by hand. What remains valuable is judgement: choosing the right goal, structuring measurement so the automation chases the right thing, reading what the data means, and saying no to spend that will not pay back. You are buying a way of thinking about your money, applied consistently.

That shifts what to look for. Certifications and platform partner badges show a baseline of competence, but they do not show judgement. Sales presentations show polish, but not how a team behaves when results disappoint. The selection process needs to test the things that actually predict a good relationship.

Before you talk to anyone: write a brief

Agencies can only be compared fairly if they answer the same question. Write a short brief covering your business model, what a customer is worth, your current channels and spend, how you measure success, what has worked and failed, your constraints, and what you expect from a partner. Our guide to writing a creative brief applies here too.

Business economics: margins, customer value, allowable cost per customer if known.
Measurement status: what is tracked, what is not, and how confident you are in it.
Current accounts: platforms, rough spend levels, who manages them today.
Goals: the outcome you want and the time frame, stated honestly.
Constraints: compliance, brand rules, internal approvals, budget limits.
Working expectations: reporting rhythm, access, communication style, decision rights.

Specialist or generalist, agency or freelancer?

Fig. 01 · Comparison

Tap to explore

Specialist PPC agency versus full-service agency

Specialist PPC agencyFull-service agency

Depth in paid mediaUsually deeper; it is their whole businessVaries; paid may be one team among many

Integration with brand and contentYou coordinate itCan be easier under one roof

AccountabilityClear for paid resultsCan blur across services

Best whenPaid is a major channel and you have other partnersYou want one partner and fewer handovers

Neither is better in general. Fit depends on what else you need and who will coordinate it.

Freelancers can be excellent for smaller accounts or specific projects, with lower overheads and direct access to the person doing the work. The trade-off is capacity and continuity: holidays, illness and growth all depend on one person. Our guide to specialist versus full-service agencies and in-house versus agency covers these choices in more depth.

Questions that reveal judgement

Generic questions get rehearsed answers. Ask questions that require the agency to think about your business, explain trade-offs and admit uncertainty. Listen for specifics, for questions back to you, and for willingness to say what they would not do.

01'Looking at our brief, what would you want to know before recommending anything?' Good partners ask about economics and measurement first.
02'How would you decide what counts as a conversion for us?' Tests whether they think about value, not volume.
03'Tell us about an account where results disappointed. What did you do?' Tests honesty and how they handle bad news. Do not expect client names; expect a clear account of reasoning.
04'How do you judge whether a campaign is incremental?' Tests whether they question platform-reported results.
05'What would make you recommend we spend less?' Tests whether incentives are aligned with yours.
06'Who will actually work on our account, and how much of their time?' Tests whether the senior people in the pitch will be there afterwards.

Evaluating proposals

Fig. 02 · Scorecard

Tap to explore

Agency evaluation scorecard

Bars show relative emphasis, not measured data

Weights reflect relative importance in selection, not measured data. Adjust to your priorities.

Be wary of proposals that promise specific results before seeing your data. Nobody can honestly guarantee a return on ad spend for an account they have not examined, in a market they do not control. Confident forecasts are a sales technique, not evidence of skill.

Fees and contract terms that protect you

Agencies charge in several ways: a fixed monthly retainer, a percentage of ad spend, a fee tied to performance, or a hybrid. Each creates different incentives. A percentage of spend rewards spending more; a fixed fee can reward doing less; a performance fee can reward gaming the metric. None is wrong in itself, but understand the incentive and design checks around it.

Checklist

0/8

Contract essentials

Red flags

Myth vs reality

Warning signs dressed as selling points

Running a fair trial

If the stakes are high, consider asking a shortlist of two agencies to complete a paid audit of your account, using a structure such as our PPC audit checklist. Paying for the work respects their time and gets you something useful regardless of who you choose. Compare not just findings, but how they prioritise, explain and present them.

Once you appoint, agree a first ninety days focused on measurement and foundations, with a clear review point. Judge the relationship on how decisions are made and communicated, as well as on early numbers, which are often noisy.

Reading their reports before you sign

Ask to see an anonymised example of a monthly report. Reports reveal how an agency thinks more honestly than any pitch. Look at what comes first. If the opening page is impressions, clicks and click-through rate, the agency is reporting activity. If it opens with customers, cost per customer, revenue and what changed since last month, with a plain explanation of why, it is reporting outcomes.

Look also for what the report admits. Good reports name what did not work and what the agency will do about it. Reports in which every chart rises and every comment is positive suggest either an unusually lucky account or a habit of selecting the flattering numbers.

Making the relationship work

The best agency relationships are partnerships with clear roles. You bring knowledge of the business, customers and economics; they bring platform expertise and analytical discipline. Share sales data, margin information and customer feedback. Respond to questions quickly. Give them permission to challenge you. An agency kept at arm's length, judged only on platform numbers, will optimise for platform numbers.

Key takeaways

01You are buying judgement about your money, not just hours in an ad platform.
02Write a brief covering economics and measurement so agencies answer the same question.
03Ask questions that test thinking, honesty and incentives, not rehearsed credentials.
04Own your accounts, data and creative, and keep fees separate from media spend.
05Treat guarantees, agency-owned accounts and activity-only reporting as red flags.

Frequently asked

How do I choose the right PPC agency?: Start with a written brief covering your economics, measurement and goals. Shortlist agencies with relevant business-model experience, ask questions that test their judgement and honesty, check who will actually do the work, and agree contract terms that keep accounts and data in your ownership.
How are PPC agencies usually paid?: Common models include a fixed monthly retainer, a percentage of ad spend, a performance-based fee, or a combination. Each creates different incentives. Whatever the model, fees should be itemised separately from media spend, and any performance element should be based on verified business data.
Should I own my Google Ads account if I use an agency?: Yes. The account, conversion tags and analytics should be created under your business and shared with the agency through access permissions. This keeps history, data and control with you if you change agency or bring work in-house.
What questions should I ask a PPC agency?: Ask how they would define conversions for your business, how they judge incrementality, what would make them recommend spending less, how they handled a disappointing account, and who exactly will work on yours. Listen for specifics and honest trade-offs rather than polished claims.
When should I hire a PPC agency instead of doing it in-house?: Consider an agency when spend is significant, tracking is complex, nobody internally has the time or depth, or you need cross-platform expertise quickly. An in-house owner can work well for modest, stable accounts if they have time for a disciplined weekly routine.

Published by Fabulous.Media, a network of specialist marketing agencies. Updated 9 October 2026. Platform features change often; check current official documentation before acting on platform-specific detail.