How Much Should a Small Business Spend on Advertising?

The short answer

There are two numbers, and confusing them is the most expensive mistake in this article.

Most businesses budget roughly 6% to 10% of revenue for marketing. The 2025 CMO Survey puts the average at 9.4%, ranging from 6.0% for consumer service businesses and 6.4% for B2B product companies to 9.0% for B2B services; Gartner's 2025 survey puts it at 7.7%. Newer businesses, businesses launching a new product or location, and businesses in highly competitive categories often go higher — about 1.5 to 2 times what an established competitor spends — to break through.

But that is the marketing budget, and marketing is more than advertising. The same money has to cover your website, SEO, email tools, software, agency fees and staff. The part that actually buys ads is a slice of it. A 2025 Intuit survey of 1,006 small businesses found they put 37% of their marketing budget into advertising on average, and 45% once revenue passes $2.5 million. Big companies run lower, because their budgets also carry a marketing payroll: Gartner puts paid media at 30.6% of an enterprise marketing budget.

So the two numbers work like this:

Marketing budget = revenue × your industry rate (roughly 6–10% for most businesses)
Advertising budget = marketing budget × your paid-media share (45% consumer-facing · 42% mixed · 37% B2B)

A consumer-facing business doing $600,000 at 8% has a marketing budget of $48,000 a year — about $4,000 a month. Its advertising budget is 45% of that: $21,600 a year, or roughly $1,800 a month to actually buy ads. Plan your campaign against the $4,000 and you will over-commit by more than double, find out three months in, and cut the wrong channel.

Being straight about it: each of the three shares is a published figure (Intuit's 45% for businesses over $2.5 million and 37% average, and Gartner's 2026 survey with the staff line removed, about 42%), but which tier each industry falls in is our call. No survey splits this by industry, and very small businesses (under $500,000) average 28%, so they may need less.

That is the rule of thumb. It is not a law. The right number for your business depends on three things: your goal, your competition, and your margin structure.

Goal first, budget second

Before you ask "how much should I spend," answer "what am I trying to make happen?" Common goals look very different at different budgets.

Every figure in this guide is an advertising budget — money going into the channels, not the whole marketing budget. A $1,500-a-month media budget generally sits inside a marketing budget of roughly $3,400–$4,400 a month, once the website, the tools and the people are counted.

• More phone calls for a service business: usually a focused mix of search ads, retargeting, and a strong Google Business Profile.
• More foot traffic for a restaurant or retail location: local awareness (audio, streaming TV, or both) plus geofencing and Meta promotions tied to specific offers.
• More qualified inquiries for a B2B or higher-ticket service: paid search, LinkedIn, and retargeting against a clear conversion landing page.
• Brand awareness in a defined market: enough spend on awareness channels to reach the same people five to seven times — an awareness budget below that is not remembered.

What each of those costs depends on your market's size and your competition, so we do not publish one-size dollar ranges for them. The calculator prices each goal for your market from real channel rates.

If the goal demands a level of presence the budget cannot support, the campaign will under-deliver. We would rather tell you that on day one than after three months of disappointing reports.

Competition matters more than people realize

Two businesses in the same category can have wildly different ad budgets that are both correct. A solo HVAC company in a small town may need a fraction of what a multi-truck operation competing against three well-funded rivals in Rapid City needs just to keep visibility steady. Both of those are advertising budgets — what lands in the channels — so the marketing budgets behind them are larger again.

The question is not "how much do I want to spend?" The question is "what does it take to be visible enough in this market to be considered?" If a competitor is buying every Google search ad, every billboard, every radio sponsorship, and you are running one Facebook ad a week, your spend is technically on the books — but functionally invisible.

Margin structure changes the math

Businesses with high gross margin (most professional services, software, dental, recovery treatment, real estate) can typically afford to spend more on advertising as a percentage of revenue. Businesses with thin margin (restaurants, retail, contractors with heavy material costs) need to be more disciplined and often need to concentrate on fewer channels and lean on owned email and organic Google Business Profile work to stretch dollars further.

A practical exercise: figure out the lifetime value of a customer. Then figure out what you are willing to pay to acquire one. If your average customer is worth $5,000 over their lifetime and you are willing to spend up to $400 to acquire one, that gives you the math you need to evaluate whether a campaign is working.

What "spending more" actually buys

When a business doubles its advertising budget, they are not just doubling the number of ads. They are typically getting:

• More frequency (the same audience hears or sees the message more times before deciding)
• More channels (radio + digital + retargeting instead of just one)
• More creative variation (different messages for different audiences)
• More measurement (the larger spend justifies serious analytics setup)

It is not 1+1=2. When a budget has been sitting below effective frequency, adding to it can matter more than the dollar increase suggests, because the campaign finally reaches people often enough to be remembered.

A starting framework

If you are figuring out where to start, try this:

1. Take roughly 6–10% of revenue — that is your marketing budget for the year. (The rate moves by sector; SaaS runs high, auto dealers run low.)
2. Multiply it by your paid-media share — about 45% if you sell to consumers, 42% for mixed and professional categories, 37% for B2B. That is your advertising budget: the money that actually buys ads.
3. Do not then subtract your website, software and agency costs as well. The media share has already taken them out. Subtract them twice and you will under-fund the campaign.
4. Divide the advertising budget by 12 and consider flighting — heavier spend in your busy seasons, lighter in your slow ones.
5. Weight it toward the tactics with measurable conversions — search, social, display, retargeting — while keeping a real slice for the awareness and trust channels (radio, streaming audio, CTV, sponsorships) that make the rest work harder. The exact split is an output of your goal, industry and budget, not a fixed ratio — the calculator sets it for you.

That is a starting framework — not gospel. We refine it for your business in the first conversation.

Want a real number for your business?

Skip the rule of thumb. Run the free advertising budget calculator — enter your revenue, industry, stage, and growth goal and it applies these same benchmarks (plus your market's real audience size). It shows you both numbers — your marketing budget and the advertising budget it plans against — then returns a monthly range and the channel plan to spend it on. No email required.

If you want to go deeper on the maths behind the percentage, see advertising budget as a percentage of revenue and advertising budget by industry. Brand new and have no revenue to take a percentage of yet? Start with how much a new business should spend.

Or get a free marketing plan and we will recommend a budget range tied to your specific goal, market, and competition.

Sources: The 6-10% of revenue range comes from The CMO Survey 2025 and Gartner's 2025 CMO Spend Survey; the industry-by-industry marketing rates from the CMO Survey; the paid-media share of a marketing budget — the step that turns a marketing budget into an advertising budget — from Intuit's 2025 small-business survey and Gartner's CMO Spend Survey. See the full references page for direct links to each.