Two quotes for the same Facebook ads account. One says $1,000 a month. The other says 15% of ad spend. At your budget today they might cost about the same. A year from now, after you've doubled spend, one of them costs twice as much for work that may not have changed at all. How an agency charges decides what it's paid to want.
- A flat fee is a fixed monthly price for an agreed scope. It doesn't move when your spend moves.
- Percentage pricing usually runs 10-20% of monthly ad spend, with a minimum fee, so at small budgets the minimum is the real price.
- Hybrid pricing combines a base fee with a smaller percentage, often above a spend threshold. Almost half the agencies in one 2023 survey billed this way.
- Performance pricing, per lead or as a share of revenue, sounds safest and is the hardest to define.
- Percentage pricing pays the agency more when you spend more, whether or not the extra spend works.
- For most small businesses a flat fee is simpler and keeps the incentives straight. It's how we charge.
How each model works
| Model | How it's priced | Typical figures | Main risk |
|---|---|---|---|
| Flat fee | A fixed monthly fee for an agreed scope | One guide: $699 to $5,000+ a month | An agency that coasts once the fee is agreed |
| Percentage of spend | A share of monthly ad spend, usually with a minimum | 10-20% is typical; some guides quote up to 25% | The fee rises with your budget, not your results |
| Hybrid | A base fee plus a smaller percentage, often above a threshold | Example: $1,000 base plus 10% of spend | Thresholds and caps buried in the contract |
| Performance-based | A fee per lead or sale, or a share of revenue | $10-$100 per qualified lead; 5-15% of attributed revenue | Arguments over what counts, and low-quality leads that never buy |
Flat fee range, 25% upper bound and hybrid example: one agency's pricing guide, May 2026. 10-20%: a July 2026 cost guide. Performance figures: a 2026 pricing guide for Facebook ads agencies.
A flat fee is one number, agreed before the month starts, for a set amount of work. It changes when the scope does, not because you spent more on ads in March than in February.
Percentage pricing, in practice, nearly always comes with a floor. One rate card we reviewed charges $975 or 15% of spend, whichever is higher, so the percentage only takes over above $6,500 a month. Rates also tend to fall as budgets grow: one guide's tiers run from 18-20% at $5,000-$10,000 a month down to 8-10% above $100,000.
In the UK, percentage deals are mostly out of sight. Whito's June 2026 review of published PPC prices found that agencies price almost entirely by ad spend band, and that those charging 10 to 20% of spend quote it privately rather than publish it.
Hybrids have grown more common. In WordStream's 2023 survey of more than 300 agencies in the US and Canada, almost half used a hybrid billing model, up from roughly level with flat fees in 2020.
What each model costs at three budgets
Here's the same account priced three ways at $1,500, $5,000 and $15,000 a month in ad spend. The flat fee is scoped to the work, so it still rises as the account grows, just not automatically with spend. The percentage deal is 15% with a $1,000 minimum. The hybrid is a $750 base plus 10% of spend above $5,000.
| Monthly ad spend | $1,500 | $5,000 | $15,000 |
|---|---|---|---|
| Flat fee, scoped to the work | $750 (50% of spend) | $1,000 (20%) | $1,500 (10%) |
| 15% of spend, $1,000 minimum | $1,000 (67% of spend) | $1,000 (20%) | $2,250 (15%) |
| Hybrid: $750 plus 10% above $5,000 | $750 (50% of spend) | $750 (15%) | $1,750 (12%) |
Illustrative numbers, not any agency's rate card. The percentage after each fee is the fee as a share of ad spend.
At $1,500 a month, every model is expensive next to the spend. The percentage deal is really a $1,000 flat fee with a percentage attached, and you'd pay two-thirds of your budget again to have it managed. At that size, ask whether you need management yet. How much to spend on Facebook ads helps you set a realistic budget first.
At $5,000, the models converge, so compare what's included, not the headline number.
At $15,000, the percentage deal costs $750 a month more than the flat fee for the same account, or $9,000 a year. The more useful number is the marginal one: each extra $1,000 of spend adds $150 to the percentage fee, $100 to the hybrid, and nothing to the flat fee unless the work itself changes.
The incentive problem
Percentage pricing ties the agency's income to your spend, not your results. When a percentage agency recommends raising the budget, it's also recommending a raise for itself. Even a pricing guide written for agencies calls this a conflict of interest: tie the fee to spend and the agency has a financial reason to recommend bigger budgets, even when spending less would be the better call.
It cuts the other way too. An agency on 15% that finds $2,000 a month of wasted spend and switches it off takes a $300 a month pay cut for doing its job well. Good agencies cut the waste anyway. The point is that you're relying on their character, not the structure of the deal.
Scaling is where it bites hardest. More budget rarely buys results in proportion, because Meta finds the cheapest results first, as why Facebook ROAS drops when you increase budget explains. Under a percentage deal, the fee rises in a straight line while your return on each extra dollar usually falls.
Flat fees have their own failure mode: an agency can do a little less each month and still get paid. The fix is the same for every model: agree what gets done each month, and judge the work on leads, bookings or sales. Seven signs your ads agency is wasting your budget shows what coasting looks like from the outside.
When percentage pricing is fair
Percentage pricing isn't wrong in itself. It can be a reasonable deal when:
- The work really grows with spend: large product catalogs, several countries, many campaigns and new creative every week.
- The rate steps down as spend rises, instead of staying at 15% or 20% forever.
- There's a cap, so the fee stops rising past an agreed spend.
- The agency makes the extra creative a bigger budget needs, rather than running the same three ads harder.
- Budget increases need your sign-off in writing, with a reason attached.
On most small-business accounts, those conditions rarely apply.
Performance pricing: read the definitions
Paying per lead, per sale or as a share of revenue sounds like the agency takes all the risk. One 2026 guide puts pay-per-lead pricing at $10 to $100 per qualified lead, depending on industry, and revenue shares at 5-15% of attributed revenue. The catch is in the words "qualified" and "attributed".
A per-lead deal pays for leads that meet a definition, so the cheapest way to earn is to buy leads that pass it and never buy. Duplicates, wrong numbers and people outside your area all need rules. Revenue shares depend on attribution both sides trust, and platform reporting can change without warning, as why ROAS drops when nothing changed shows. If you take a performance deal, write the definitions down before the first ad runs.
Questions to ask, whichever model you choose
- What exactly does the fee include each month: campaigns, new ads, landing page changes, reporting?
- Is there a minimum, and at what spend does the percentage take over from it?
- Does the rate step down as spend grows, and is there a cap?
- If we cut spend, does the fee fall? If you want to raise it, who signs off?
- Is ad spend billed by Meta or Google to our card, or does it pass through you? If it passes through you, is there a markup?
- Who owns the ad account, the Pixel and the audiences?
- What's the notice period, and what do we keep when we leave?
On Google Ads, some of this is written down for you: Google's third-party transparency requirements oblige a partner that charges a management fee to tell you in writing before your first purchase and to show the fee on every invoice. The full list of questions, with good and bad answers, is in 12 questions to ask before you hire a Facebook ads agency. For what each service costs in the first place, see Facebook ads management cost, Google Ads management cost and what a digital marketing agency costs.
Where we stand
We charge a monthly fee, not a percentage of your ad spend. Facebook and Instagram ads management runs $500-$2,000 a month, with entry plans from $500. It's month-to-month, with no setup fee and no long-term contract, and you keep full ownership of your ad account. Static ads and carousels are included; short-form video is quoted separately, before anything gets made. Your ad spend goes straight to Meta, on your own card, never through us.
The fee is scoped to your goals, market and budget, meaning how many locations, campaigns and offers are involved, and we quote it on the call before you commit. Because it isn't a cut of your spend, our advice about your budget doesn't change what we earn, and if the right call is to spend less, saying so costs us nothing.
Full details are on our pricing page and our Meta ads management page.
Questions people ask
What percentage of ad spend do agencies charge?
Usually 10-20% of monthly ad spend, and some guides quote up to 25%. Most add a minimum fee, so at small budgets you pay the minimum, not the percentage.
Is a flat fee or a percentage of ad spend better for a small business?
For most small businesses, a flat fee. It's predictable, and it doesn't pay the agency more for spending more of your money. Percentage pricing can be fair on large accounts where the work really grows with spend, especially if the rate steps down or is capped.
What is a hybrid agency fee?
A base fee plus a smaller percentage, often charged only on spend above a threshold. One guide's example is a $1,000 base plus 10% of spend. In WordStream's 2023 survey of more than 300 US and Canadian agencies, almost half used a hybrid billing model.
Is pay-per-lead pricing a good deal?
Only if the definition of a lead is tight. One 2026 guide puts pay-per-lead pricing at $10 to $100 per qualified lead, depending on industry. Agree in writing what counts, how duplicates and junk are handled, and who decides.
Is the ad spend included in a percentage fee?
No. A 15% fee on a $5,000 budget is $750 on top of the $5,000 paid to Meta or Google. The spend should be billed by the platform to your own card, so you can see exactly what it charged.
Who are you not the right fit for?
We're not the right fit if you're shopping for the lowest fee, if your offer hasn't sold yet without ads, or if you can't commit a real ad budget alongside the fee. We'd rather say so on the first call.
Comparing quotes right now? Book a strategy call and bring them with you. We'll show you what each one would really cost at your budget, and what we'd charge, whether or not you hire us.
