How Much Should a Small Business Spend on Marketing? Real Numbers by Stage and Industry

The U.S. Small Business Administration recommends 7-8% of gross revenue for businesses with healthy margins. The 2025 Deloitte/Duke CMO Survey pegged the average across all company sizes at 9.4% of revenue. These numbers are useful starting points. They're also averages that conceal enormous variation by industry, stage, and business model.

The reality behind the averages

The 7-8% SBA guideline assumes 10-12% net profit margins. If your margins are thinner, the same percentage isn't sustainable — you'd be spending money you don't have. If your margins are fatter, you might be underinvesting relative to your growth potential.

Industry matters enormously. B2C product companies averaged 15.5% of revenue on marketing in 2025, according to the CMO Survey. B2B product companies averaged 6.4%. Professional services averaged 5-10%. Consumer packaged goods ranged from 18-25%. The spread is large enough that industry-level benchmarks are more useful than economy-wide averages.

Stage matters as much as industry:

Early-stage / startup (pre-revenue to $1M). Expect to spend 12-20% of projected revenue, sometimes higher. At this stage, you're buying awareness you don't yet have. The percentage is high because the denominator (revenue) is small. A startup spending $10,000 a month on marketing against $60,000 in monthly revenue is spending nearly 17%. That's not necessarily wrong — it's a growth investment, not an operating expense.

Growth stage ($1M-$10M). Marketing spend typically settles into the 7-10% range as revenue grows and the percentage normalizes. You've established channels that work. You're optimizing for efficiency rather than pure growth. The absolute dollar spend is higher than at the early stage, but the percentage is lower.

Established / stable ($10M+). Marketing spend trends toward 4-7% of revenue. Brand awareness is established. Organic channels (search, word-of-mouth, repeat customers) contribute a larger share of revenue. Marketing shifts from demand creation to demand capture and retention.

What these percentages include

The percentage should include everything that's reasonably classified as marketing: advertising spend, content production, marketing salaries, agency fees, marketing software, event costs, and any other expense incurred to attract or retain customers.

A common mistake: reporting marketing spend as a percentage of revenue but only including media spend (ads), not salaries, tools, or production costs. This produces an artificially low number that makes marketing look more efficient than it is and makes budgeting harder because the real cost is obscured.

The B2B vs. B2C split

B2B companies spend less as a percentage of revenue (roughly 5-10%) because their customer relationships are fewer, larger, and longer. A B2B company might have 200 customers generating $10M in revenue. Marketing's job is to reach a relatively small number of decision-makers, not a mass audience.

B2C companies spend more (8-15% for services, 15%+ for products) because their customer relationships are numerous, smaller, and shorter. A DTC brand might need 20,000 customers to generate the same $10M. Marketing has to reach a mass audience at scale, which costs more per dollar of revenue.

If your budget is very small

If you're spending less than 5% of revenue and can't increase it, you're not going to outspend competitors. You have to out-execute them in channels where budget matters less than skill: organic social content, SEO for long-tail keywords, email marketing to existing contacts, referral programs that turn customers into acquisition channels.

The constraint forces focus. You can't be everywhere. Pick one or two channels where you can realistically compete without budget, execute well, and measure obsessively. A small budget spent precisely in one channel outperforms a small budget spread thin across five.