Most agencies bill one of three ways: a flat monthly retainer, a percentage of ad spend — commonly 10% to 20% — or a hybrid that charges whichever is greater. Clutch lists most Nashville PPC firms in the $100 to $149 per hour band. Expect a separate setup fee and, often, a minimum term.
Google Ads management pricing is hard to compare because almost nobody publishes it. You get a proposal, a number, and no way to tell whether it is normal. The few agencies that do post rate cards are useful for that reason — not because their prices are correct, but because they show you the shape of the deal.
The four ways agencies bill
Flat monthly retainer
A fixed fee, unrelated to what you spend. Your cost is predictable and the agency has no financial reason to push your budget up. The weakness is drift: an account that triples in complexity is managed for the same money, and something eventually gives. Agree up front on what triggers a repricing conversation — new markets, new campaign types, a second platform — rather than discovering it at month nine.
Percentage of ad spend
The most common model in small and mid-market accounts. WebFX puts the usual band at 10% to 20% of ad spend, decreasing as spend rises. CallRail describes a wider range, 15% to 30%. AgencyAnalytics also cites 10% to 20% as typical for Google Ads.
The model breaks at the bottom end. Across more than 7,000 agency-managed accounts, AgencyAnalytics reported a median monthly Google Ads spend of $1,024.79 in January 2025. Fifteen percent of that is about $154, which buys nobody’s attention. Which is why nearly every percentage-based agency has a floor.
Hybrid — a floor plus a percentage
This is what most percentage pricing actually is once you read the contract. WebFX publishes its structure openly: a $750 monthly fee for accounts spending $100 to $5,000, then “$975 or 15% of spend, whichever is higher” from $5,000 to $30,000, and “$4,500 or 12% of ad spend, whichever is greater” above that. CallRail describes the same pattern as a $500 to $5,000 monthly management fee alongside a percentage.
Hybrid pricing is honest about the fixed cost of managing any account at all. Read the tier boundaries carefully: a greater-of clause steps your fee up the month you cross a threshold, and does not step back down as fast.
Performance-based
Pay per lead, per conversion, or a commission on revenue. It sounds like perfect alignment and rarely is. The disputes are always about definitions: what counts as a lead, who arbitrates when the CRM and the ad platform disagree. An agency paid per lead is also pushed toward the cheapest lead, not the best one.
The buyers with the most leverage have been moving away from incentive pay, not toward it. The Association of National Advertisers’ survey of 101 client-side marketers covering 336 agency relationships found performance incentives in use by 41% of respondents in 2022, down from 48% in 2016 and 61% in 2013, while fee-based compensation rose to 82% from 68%.
What the Nashville market looks like
Clutch’s Nashville PPC listings cluster in the $100 to $149 per hour band, with a smaller group at $50 to $99, a group at $150 to $199, and outliers above $200. Stated minimum project sizes start at $1,000 and run past $25,000. Clutch’s broader PPC guide gives the same headline rate — $100 to $149 per hour — and an average monthly PPC project cost of $7,165.33, a figure pulled upward by large accounts and not one to anchor on.
The conflict inside percentage-of-spend billing
This is the part that gets skipped in sales calls. When your agency is paid a percentage of what you spend, every decision that increases spend increases their revenue, and every decision that decreases spend decreases it.
That is not an accusation of bad faith. It is arithmetic. Pausing a campaign that generates expensive, low-quality leads is the right call and it cuts the fee. Loosening match types and raising budgets to chase volume grows the fee. Recommending you move budget to a channel the agency does not manage costs them the line item. No single one of those choices is dishonest. Over two years of small choices, the direction of the drift is predictable.
There is a real counterargument: bigger accounts genuinely take more work, and a percentage is a rough proxy for that. Fine. The fix is not to reject the model, it is to bound it:
- Cap the fee in absolute dollars, so budget increases past a point do not keep paying the agency more.
- Tier the percentage down as spend rises, which the published rate cards already do.
- Base the fee on a trailing three-month average so a seasonal spike does not reset your tier permanently.
- Require written approval for budget increases. If the agency cannot raise your spend unilaterally, the conflict mostly evaporates.
What the fee should include, and what it usually doesn’t
Ongoing management normally covers keyword research, ad copy, bid and budget management, negative keyword work, search term review, and reporting. WebFX’s published plans list essentially that set: keyword research, ad copywriting, bid management, performance tracking, and monthly reporting.
Commonly excluded, and worth asking about line by line:
- Conversion tracking implementation. Google’s conversion tracking requires a tag on your site, configured and tested. Google is explicit that this data is what Smart Bidding optimizes against. An account without working conversion tracking is not being managed, it is being spent.
- Landing pages. Design, copy and build are usually a separate project. An agency quoting management only will run traffic to whatever page you already have.
- Creative production. Images and video for Demand Gen, Performance Max and YouTube. WebFX bundles creative development into its higher setup tiers, which tells you it is a real cost.
- Third-party tools. Call tracking, form tracking, reporting platforms. Usually billed through at cost or expected from you.
- The ad spend itself. Obvious, but confirm whose card it sits on.
Setup fees and contract length
Setup fees are normal and defensible. The first six weeks of an account are genuinely front-loaded: research, structure, tracking, copy. WebFX publishes one-time setup costs of $1,200, $2,250 and $5,800 across its three tiers, alongside a six-month minimum contract.
Two things to nail down. First, what the setup fee buys, itemized, and whether the assets are yours if you leave. Second, ownership. The account should be yours, under your billing, with the agency added as a manager. Google’s documentation is clear that an account admin can unlink a manager account at any time. If the agency built your campaigns inside an account they own, your six-month contract is functionally permanent — leaving means starting over with no conversion history.
Questions to ask before you sign
- Who owns the Google Ads account and whose payment method is on it? If the answer is anything other than “yours,” stop there.
- What is the fee at my current spend, and at double my spend? Make them state both numbers.
- Can you raise my budget without asking me?
- Is conversion tracking included, and who installs it?
- What is excluded? Ask for the exclusions in writing.
- What does the setup fee cover, and do I keep the deliverables?
- What is the minimum term and the notice period?
- Who actually works on the account? Not who sold it. Name and role.
- How many accounts does that person manage?
- If you hold a Google Partner badge, what does it require? The documented thresholds are a 70% optimization score, $10,000 in 90-day ad spend across managed accounts, and half of account strategists certified. That is a floor, not a distinction.
When none of this applies
There is a spend level below which hiring anyone is the wrong move. If the median agency-managed Google Ads account spends around $1,000 a month, and the floor fee is somewhere near that again, half your total cost goes to management before a single click. Some accounts can carry that. A lot of local service businesses cannot.
At that level the honest options are to run it yourself, or pay someone hourly for a proper build and handoff and maintain it from there. Neither is what an agency wants to hear. Both beat a retainer that eats the margin the ads were supposed to produce.