How Much Does a Marketing Agency Cost? Fees, Models and Math
Most marketing agencies bill a monthly retainer, and a quick way to size one is in hours. In Promethean Research's survey of digital agencies, the most common rate bracket was $175 to $199 an hour, so a $3,000 retainer, for example, buys roughly 15 to 17 hours of work a month. Your ad budget, paid straight to Google or Meta, sits on top of that fee.
Agencies rarely publish prices, so most owners end up holding two proposals that bundle different work under one monthly number, with no way to tell which is the better deal. Converting each one into hours, and then into the number of new customers the total spend has to bring in, settles most of those comparisons with a calculator and ten minutes.
The monthly number on a proposal depends on how much work is inside it, and agencies price that work from an hourly rate even when they never show you one. Promethean Research has surveyed digital agency owners since 2015, and its latest Digital Agency Industry Report says "almost a third (29%) of the agencies in our latest survey charged between $175-199/hr." That sample covers digital agencies broadly, including design and development shops, but it's a fair yardstick for marketing work as well.
Divide the monthly fee by the hourly rate. This is our own rule of thumb, and it's rough, because agencies blend senior and junior time and some work faster than others. It still tells you quickly whether a quote can cover the scope it promises.
Picture a $1,500 retainer that promises to run your Meta ads, post on social three times a week and send a monthly report. At $175 to $199 an hour that's 8 or 9 hours a month, about two a week. Writing and designing a dozen social posts can eat that by itself. So either the ads get very little attention, or the work is being done at a much lower rate by someone you'll never talk to. Either can be fine, as long as you know which one you're buying.
At $10,000 a month the same math gives you 50 to 57 hours. That's enough for an experienced buyer to run two ad platforms properly, plus a regular content shoot and the landing pages that go with it. It's also fewer hours than most owners picture when they see a five-figure invoice, which is why the people doing those hours matter more than the count.
A full marketing budget with an agency usually has four parts, and two proposals with the same total can split them very differently. The agency fee covers strategy, management, reporting and whatever production is included. Ad spend is what Google, Meta or another platform charges for the ads, and it normally goes on your own card. Production (video shoots, photography, landing pages, design) is bundled into the monthly fee by some agencies and quoted per project by others. Then there are tools and setup: CRM, call tracking, scheduling software and any one-time onboarding charge.
Google keeps the first two apart for anyone managing ads on a client's behalf. Its third-party policy says agencies sharing cost data must "report the exact amount charged by Google, exclusive of any fees that you charge," and that a management fee has to be disclosed in writing before the first purchase and on every invoice. If a proposal folds ad spend and fee into one figure, ask for the split before you sign. For what the ads themselves tend to cost, our breakdown of how much Google Ads cost works through the click and lead math.
Few agencies stick to one way of billing. The same Promethean report found that "only 8% or fewer rely on any single model exclusively," with a mix of time and materials, fixed bids and retainers being most common. The model you agree to decides who carries the risk when the work takes longer than planned, so it's worth reading closely.
| Model | How you pay | Works well when | Watch out for |
|---|---|---|---|
| Monthly retainer | A fixed fee each month for an agreed scope | The work is ongoing, like running ads and publishing content | Scope that isn't written down, so effort can drift while the fee stays put |
| Project fee | One price for a defined deliverable | A website, a launch or a shoot with a clear end | Change requests billed as extras, and nothing included after launch |
| Hourly | Time actually worked, billed afterwards | Audits, consulting and work with an unclear scope | You carry the overrun risk, so monthly totals are hard to predict |
| Percentage of ad spend | A share of platform spend, often with a monthly minimum | Paid accounts you plan to grow | Small budgets, where the minimum can be close to half your total outlay |
| Performance-based | A fee tied to leads, sales or another metric | The metric is easy to count and the agency controls most of it | Paying for leads who never buy, and disputes over what counted |
Performance pricing looks like the safest deal for an owner, and the catch is in what gets counted. An agency paid per lead is paid to produce leads, and it will find the cheapest ones the platforms can serve. Unless the deal is tied to sales you can see in your own CRM, you can pay a good price for a list of people who never pick up the phone.
Percentage-of-spend fees get criticised for the opposite reason, since the agency earns more when you spend more. That only hurts you if cost per customer gets worse as the budget grows. If each extra $1,000 still brings in customers at a price you're happy with, you want the budget to grow anyway. Our post on Meta ads agency fees works a percentage fee with a minimum through in real dollars.
Two proposals for "marketing" can be thousands of dollars apart and both be fair, because the work underneath is different. Say one agency quotes $2,000 a month to manage Meta ads, and another quotes $6,000 for Meta and Google ads, a monthly video shoot, landing pages and automated follow-up for new leads. Run the hours math and the first buys about 10 to 11 hours, the second about 30 to 34. Per hour they're priced the same, and the real question is whether you need the extra scope.
Each ad platform needs its own campaigns, creative sizes, tracking and weekly checks. A second location usually means separate budgets and reporting too. Adding Google to a Meta account adds real hours to every month, so expect the fee to move.
In our experience, video swings quotes more than any other line item. An agency that sends a crew to film you, writes the scripts and edits a batch of ads each month is doing a lot more work than one that asks you to send over phone clips. Ask how many new ads you'll get each month and who makes them, because ads wear out as the same people keep seeing them.
A low quote sometimes means the senior person sells the deal and a junior coordinator runs it. That can work, but ask who will be inside your ad account each week, and how often you'll speak with someone who can change the strategy.
Plenty of quotes stop at the form fill. If nobody is building the landing page, the text that goes out when someone enquires, or the pipeline that shows which ads turned into sales, that work either falls to your team or doesn't happen. It's often the cheapest place to find more customers, so check whether it's in scope.
Gartner's CMO Spend Survey put marketing budgets at 7.7% of overall company revenue. Most of its respondents reported annual revenue above $1 billion, though, so the figure describes big companies much better than a $2 million one.
A better method for a smaller business is to work backward from what a customer is worth and what you're willing to pay to win one. You get a budget tied to the result you want, and you can see before you sign whether an agency's fee leaves enough money for the ads to do their job.
In the example, a customer worth $4,000 and a $500 ceiling to win one gives a $6,000 monthly budget for 12 new customers. After a $2,500 fee there's $3,500 left for ads, which at $50 a lead is 70 leads. Twelve sales out of 70 means about one lead in six has to buy. If your team closes one in ten, you'd land 7 customers at roughly $857 each, well over the ceiling. Raising the budget at that point just buys more expensive customers, so the offer and how fast leads hear back usually need fixing first.
Run the numbers the other way and they show when a fee is too big for the budget. If the fee takes most of what you can afford, the ads won't produce enough leads to judge anything for months. You'd usually do better starting with a narrower scope, or paying a consultant to guide your own team until the budget can carry both.
The Bureau of Labor Statistics puts median pay for market research analysts, the closest BLS match for a mid-level marketing hire, at $78,760 a year, and for marketing managers at $166,790. Salary is only part of what an employee costs. In the BLS employer costs survey, benefits made up 30.0 percent of private-industry compensation costs. Using that share as a rough estimate, a $78,760 hire costs about $112,500 a year, or $9,376 a month, before software, recruiting and a single dollar of ad spend.
That $9,376 at an agency billing $175 to $199 an hour buys 47 to 54 hours a month. You get fewer hours, but they can come from a media buyer, an editor and a designer, where a single hire has to be good at all of it. A hire makes more sense once there's enough steady work to fill a week and someone inside who can manage them. An agency makes more sense when you need several skills at once and can't spend a quarter recruiting. Plenty of businesses mix the two, with one person inside who owns the numbers. We compare all three setups, freelancers included, in agency vs. in-house vs. freelancer.
Add up the whole bill, fee and ad spend together, and set it against the new customers and revenue it brought in. Cost per lead and click-through rate are useful for spotting problems, but neither one tells you whether the spend turned into paying customers.
A home remodeling account we ran shows why. On about $12,000 in Meta ads the company signed $248,000 in remodels, roughly $20 in signed work for every ad dollar. Its leads cost about $68 each, which would look expensive on most reports, but the ad cost of a signed job came to around $4,000 on projects averaging more than $80,000. The remodeling case study has the full breakdown.
On the B2B side, an agency selling retainers of about $2,000 a month tells the same story at a different scale. Each new client cost about $1,980 in ads and is worth roughly $24,000, since a typical client stays around a year. Cash collected reached $62,625 on $19,778 in ad spend, a 3.2x return with most of those clients' value still to come, so the monthly budget went from about $750 to over $3,000. When the numbers look like that, the fee stops being the question. What you want to know is how much more budget the account can take before it stops paying, and the B2B case study shows it month by month.
For your own quote, add the fee and the ad spend, divide by new customers, and compare the result with what a customer brings in. Give it long enough to cover your sales cycle before you decide, because the first weeks go into testing ads, pages and follow-up, and a deal that signs in month three still counts.
Most surprises on an agency bill come from things nobody priced at the start. These are the ones worth raising before you sign:
We run Meta and Google ads, landing pages, follow-up and content as one system, and we track every sale back to the ad that started it, so you can see the customers and revenue the spend brings in. If you'd like that whole path handled by one team, that's what our growth partner service does. And if you're comparing proposals right now, book a growth audit. It's a 45-minute call where we look at your current ads, funnel and follow-up and work out the first fix we'd make, which is yours to keep whether you hire us or not.
It depends on the hours and scope inside the retainer. As a rule of thumb, divide the fee by a typical rate. At $175 to $199 an hour, the most common bracket in Promethean Research's agency survey, $3,000 a month buys about 15 to 17 hours of work and $10,000 buys about 50 to 57. Ad spend is paid on top.
Usually not. The ad budget goes to Google, Meta or another platform, normally on your own payment method, and the agency bills its fee separately. Google's third-party policy requires agencies to report the exact amount Google charged without their fees, and to disclose any management fee in writing.
A mid-level marketing hire paid the BLS median for market research analysts, $78,760, costs roughly $9,400 a month once benefits are added, before software and ad spend. The same money buys about 47 to 54 agency hours spread across several specialists. A hire makes sense when the work fills a full week, and an agency when you need several skills at once.
In Promethean Research's survey of digital agencies, almost a third (29%) charged between $175 and $199 an hour, the most common bracket. Rates vary with specialty, seniority and location, so ask what hourly rate a quoted retainer assumes.
Convert the fee into hours and check that the promised scope fits. Then divide your total spend, fee plus ads, by new customers and compare that with what a customer is worth. A cheap agency can still be expensive if the customers it brings in cost more than they bring back.
Last updated: 2026-10-16
