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How Much Should a Small Business Spend on Marketing, and Is an Agency Worth It?

For a local service business or a private practice, the range I work from is roughly 5 to 10 percent of revenue, newer businesses toward the top of that band and established ones with steady referral flow toward the bottom. That is my own starting guess for a business with no data yet, not a published standard. The number that actually decides this is what it costs you to acquire one paying customer, measured against the gross profit that customer produces. If you can name that number, ignore every percentage on this page. If you cannot, use a percentage until you can.

Where "7 to 8 percent, per the SBA" came from, and why it is wrong

Page after page on this question repeats the same line: the Small Business Administration recommends 7 to 8 percent of revenue on marketing. I read the SBA page. It does not say that. It says there is no hard and fast answer to how much your marketing budget should be. The one figure it publishes is that the average business spends 1.08 percent of its revenues on advertising, and its actual advice is to contact your industry trade association for benchmarks. A widely repeated number is leaning on a source that says something different.

What the benchmark data says, mean and median

The CMO Survey, run out of Duke's Fuqua School with Deloitte and the AMA, is the best public series I have found on this. Its 2026 edition, the 35th, fielded in January 2026, puts marketing expenses at a mean of 8.96 percent of revenue. The mean is the figure that usually gets repeated. The same table reports a median of 5 percent, a standard deviation of 11.45, and a range from 0 to 42.99 percent across 154 valid responses.

The standard deviation is larger than the mean. A few heavy spenders pull the average up, and half of responding firms spend 5 percent of revenue or less. Gartner's 2026 CMO Spend Survey, polling 401 senior marketers in the US and Europe, reported 7.8 percent of revenue, up marginally from 7.7 percent a year earlier. Both series are dominated by companies much larger than a local service business, which is why the size cuts below matter more than the headline.

Why the percentage climbs as the business shrinks

The CMO Survey's firm and industry breakout report publishes size cuts that rarely get quoted. Firms under $10 million in revenue reported 13.34 percent of revenue on marketing, against 5.86 percent at firms of $100 to 499 million. Companies under 50 employees reported 16.26 percent, versus 4.28 percent at companies of 10,000 or more.

Before you budget 13 percent, look at the cells. That 13.34 percent rests on 20 responses with a standard deviation of 13.21, and the band above it, $10 to 25 million, rests on 15. Treat it as a signal rather than a target. The signal itself is real, though. The fixed cost of being findable does not shrink with revenue. A claimed profile, a working site, a review flow, and a phone that gets answered cost about the same whether you bill $400,000 or $4 million.

The unit that actually decides this

Percent of revenue is a weak unit for a business that sells jobs, cases, or appointments. The better unit is cost to acquire one customer measured against gross profit per customer, and you already have the four inputs: average revenue per job or case, gross margin after labor and materials, repeat rate, and referral rate.

Run it. Benchmark medians put cost per lead in home and home improvement at $90.92. Close one lead in four and an acquired customer costs about $364. On a $9,000 roof at 30 percent margin, that is $2,700 of gross profit against $364, and the math says buy every lead you can get. On a $140 service call at 50 percent margin, it is $70 of gross profit against $364, and you are losing money unless that call becomes a maintenance plan, a repeat customer, or a referral. Same lead price, opposite decision. The one-in-four close rate there is my illustration, not a benchmark. Yours is the number that matters.

What a lead actually costs in your trade

These figures come from LocaliQ's analysis of 13,474 US search advertising campaigns on Google Ads and Microsoft Ads between April 1, 2025 and March 31, 2026, reported as medians to limit outlier skew.

One caveat matters more than the table. Those are lead prices. A customer costs you more than that, by whatever your close rate turns out to be, and this benchmark set does not publish close rates by trade. You have to measure your own.

The twenty-minute self-diagnostic

Pull one quarter of a phone log and a bank statement and get four numbers: total marketing spend including ads, retainer, and software; leads received; jobs or cases booked from those leads; and revenue closed.

Two ratios fall out. Spend divided by booked jobs is your cost per acquired customer, which you compare against gross profit per customer. My own rule of thumb, and it is a rule of thumb rather than a published benchmark, is that under about a quarter of gross profit you have room to spend more, and above half of it something upstream is broken. Booked jobs divided by leads is your close rate. If you cannot produce the lead count or the booked count, that is the finding: you cannot tell a bad channel from a bad intake process, and more spend will not resolve it.

What to fix before spending another dollar on ads

Reviews first. BrightLocal's Local Consumer Review Survey 2026, 1,002 US adult consumers surveyed in February 2026, found 97 percent read reviews for local businesses, 68 percent will only use a business rated four stars or higher, and 74 percent look for reviews written in the last three months. If you sit at 3.8 stars, or your newest review is two years old, paid traffic will arrive, read, and leave.

Then a claimed and complete Google Business Profile. Then the phone, because a missed call is a competitor's customer. And work referrals deliberately. In LocaliQ's 2026 survey of more than 300 small business owners, 83 percent named customer referrals their best source of new customers, up from 65 percent a year earlier, against 46 percent for digital marketing and online advertising.

When hiring an agency is the wrong move

I run a marketing company, so weigh this accordingly. Four situations where hiring anyone, me included, is a bad decision.

Your budget is under about $1,000 a month. In that same LocaliQ survey, 52 percent of small businesses sit in that band, and among businesses budgeting $1,000 a month or less only 37 percent named digital marketing a top source of customers, against 46 percent overall. My read is that at that level a management fee leaves too little media behind it to learn anything.

You cannot attribute anything. No tracked number, no intake log, no record of where callers came from. You will get a dashboard of clicks and still not know whether it worked.

You cannot service more demand. If you are booked three weeks out and turning work away, more leads make you slower rather than richer. Raise prices or hire first.

You are hoping marketing fixes something else. Pricing, staffing, a 3.6-star rating, a front desk that does not call people back. Advertising sends more strangers into whatever your business already does.

Size shapes this too. The CMO Survey has companies under $10 million outsourcing 28.46 percent of their digital marketing activities, against 43.59 percent at companies from $1 billion to $9.9 billion. And LocaliQ found the share of small businesses working with at least one marketing partner fell from 60 percent to 34 percent in a single year.

When it is reasonable, and what to make them prove

Hiring out makes sense when you have demand you cannot meet through referrals alone, gross profit per customer well above your acquisition cost, and no interest in running the systems yourself. Then make the shortlist commit in writing to five things.

• Cost per lead and cost per booked job by channel, in every report
• Month-to-month terms, or a short initial term with a clear exit
• Your name on the ad account and the profile, so the history stays yours
• Tracking numbers that forward to your real line
• A named person who answers the phone

If they will not, that is your answer.

If you would rather not do it yourself

I am Dave Burgio and I run SteelBase out of Denver, building the systems above for local service businesses and private practices: Google Ads, local SEO and Google Business Profile, review generation, automated lead follow-up, and reporting on cost per lead and cost per booked job. SteelBase is young and I have one client result I can prove. Run the diagnostic above first, and if the numbers say keep this in house, keep it in house.