We are a marketing agency writing about what marketing agencies charge, which means we have an obvious interest in the answer sounding reasonable. Read it accordingly. We have tried to earn it by publishing our own numbers and spending a real section on when you should spend less than we would like you to.
The short version: most small businesses land somewhere between a few hundred dollars a month for one narrow service and five figures for a full program, and almost the entire spread is explained by scope. You are buying a certain number of hours applied to a certain number of channels, and price follows that far more than it follows talent or branding.
How much does a marketing agency cost per month for a small business?
Three brackets cover most of the market, and knowing which one you are shopping in matters more than comparing quotes across them.
- A single service, roughly $150 to $1,000 a month. One channel, run properly. Social posting, Google Business Profile management, ads management, email. This is the entry point for most small businesses and it is a legitimate place to stay.
- A program, roughly $1,000 to $4,000 a month. Two or three channels working together, with someone accountable for how they connect. Ads feeding retargeting, content feeding search, reporting tying both back to revenue.
- A full program, $4,000 and up. Multi-channel execution plus the strategy and reporting layer on top. This is where you get a named lead, monthly planning, and content produced rather than curated.
For reference, ours is published instead of being something you have to sit through a call to hear. Programs start at $1,000 a month, full programs start at $4,000 with most landing between $4,000 and $5,000, single services start at $149 a month, and ads management starts at $599 a month. We do not mark up ad spend.
One thing every bracket above has in common: none of it includes ad spend. If you are running Google Ads or Local Service Ads, the media budget is separate money going to the platform. An agency that blends the two into one invoice is not automatically doing something wrong, but you should be able to see the split.
What actually drives the price?
Four things, roughly in order of impact.
Scope. How many services are running, how much gets produced each month, how many locations or markets you cover, and whether the work is building something new or maintaining something that already exists. A launch quarter costs more than a maintenance quarter for the same business. Two companies in the same industry can land in very different places for these reasons alone.
Channels. Each channel is a separate discipline with its own tooling, its own reporting, and its own person who is good at it. This is the main reason agency pricing stacks the way it does, and the main reason an in-house hire rarely covers paid, search, web, and email equally well.
Who does the work. Senior strategist, junior coordinator, or an offshore subcontractor are three very different cost bases, and the pitch deck looks identical in all three cases. Ask specifically who writes the copy and who touches the campaigns. This is question one in our guide to choosing a DFW agency for a reason.
Whether ad spend is marked up. A 15% markup on $10,000 of monthly spend is $1,500 a month that never appears as a fee. It is not hidden exactly, but it is easy to miss, and it changes the real cost of the engagement substantially.
How do agencies structure their fees?
Four models dominate, and the structure tells you where the incentives point.
WordStream’s poll of PPC agencies found the field split roughly evenly between the two most common approaches: 33% used flat rates, another 33% used a hybrid of flat fee plus a percentage, 15% charged hourly, and 13% priced purely as a percentage of ad spend, with management fees typically landing at 10% to 20% of spend (WordStream).
Flat monthly fee. Predictable, easy to budget against, and the model where the agency’s revenue does not move when your spend does. The risk is scope creep in either direction, which is why the deliverables need to be written down.
Percentage of ad spend. Simple to explain and common at larger budgets. The conflict is structural: the agency earns more when you spend more, whether or not spending more is the right call. Not disqualifying, but say it out loud before signing.
Hybrid. A base fee plus a percentage above a threshold. It smooths the problem of tiny accounts being unprofitable to service, and it carries a smaller version of the same conflict.
Hourly. Fine for project work and audits. Poor for ongoing marketing, because the thing you actually want is a result on a cadence, and hourly billing quietly rewards the slow version of everything.
How much should a small business be spending on marketing overall?
Less than most agencies suggest and more than most owners want. The SBA’s own guidance points out that the average business spends about 1.08% of revenue on advertising, but that the category numbers are far more useful: retailers around 4%, restaurants 1.93%, B2B services 6.9%, and B2C services 11.8% (SBA). At the enterprise end, Gartner’s survey of 401 CMOs conducted January through March 2026, most at companies above $1 billion in revenue, found marketing budgets sitting at 7.8% of company revenue (Gartner).
Here is the part people skip. That percentage has to cover everything: ad spend, software, and any agency fee together. A home services company doing $1 million a year at roughly 7% has about $70,000 annually, or a shade under $5,900 a month, for the whole marketing operation. If $4,000 of that is going to Google, the fee has to fit in what is left.
Run that math before you shop. It converts “how much does an agency cost” into “what can I actually afford to hand someone,” which is a question with a real answer. We do the same exercise specifically for paid media in how much a small business should spend on Google Ads.
How can you tell whether a fee is fair?
Not by the number. Four tests, all of which an agency can pass or fail in a single email.
- Will they tell you the price before a sales call? Scope changes price, which is true. It is also the standard excuse for keeping you on the phone. An agency that can describe its brackets in writing is telling you it has a repeatable business.
- Is ad spend marked up, and will they say so unprompted? Either answer is workable. Having to dig for it is the problem. Our own breakdown of what management fees buy is in how much Google Ads management costs.
- Does the scope name deliverables and a cadence? “Ongoing optimization” is not a deliverable. “Weekly search-term review, two ad tests a month, monthly reporting call” is.
- What happens if you leave? Long minimum terms paired with vague deliverables are the most reliable warning sign in this industry. Month-to-month with a clear scope is a harder promise to make and a better one to buy.
A fee is fair when the work inside it would cost you more to replicate any other way. That is the whole test. A $2,500 program that replaces a $60,000 hire is good value. A $500 retainer that produces eight templated posts is not cheap, it is just small.
When should you spend less, or not hire an agency at all?
More often than we would prefer. Spend less when:
- Your total marketing budget is under about $1,000 a month. At that level a management fee eats most of what is left for the actual marketing. Pick one channel, run it yourself, and revisit when there is more to manage. Our own social media pricing breakdown covers where the cheap end quietly gets expensive.
- You need one channel and you have someone decent in-house. One capable, willing person beats a distant team on a single channel almost every time. We work through both sides of that in in-house versus agency social media management.
- The offer, the site, or the tracking is not ready. Paying an agency to send traffic to a page that does not convert is an expensive way to learn what you already suspected. Fix the destination first.
- You want to learn the channel. Running your own Google Ads or social media for a few months is worth real money later, because you will know when someone is talking sense.
The case for hiring gets strong in the opposite conditions: several channels at once, a budget large enough that a 20% efficiency gain outweighs the fee, or work that keeps not getting done. That last one is the most common reason people call us, and it is a legitimate reason.
So what should you do?
Work out your total marketing budget first, as a percentage of revenue rather than a number you are comfortable with. Subtract the ad spend. Whatever is left is what you can hand to an agency, and that answers the bracket question before anyone quotes you.
Then compare inside the bracket, not across it. A $700 quote and a $4,500 quote are not competing for the same job, and treating them as if they are is how people end up disappointed by both.
If you want a real number for your business rather than a range, book a call. We will tell you what we would do and what it costs, and if the answer is that you should spend it on one channel yourself for another six months, we will tell you that instead.