SMB Marketing Budgets in 2026: What Growing Businesses Are Actually Spending

“How much should we be spending on marketing” is one of the most common questions we hear from growing businesses, and the honest answer depends heavily on stage, goals and how much the business already has working in its favour. That said, benchmarking research gives a useful starting range, and knowing where that budget typically goes, and where SMBs most often get the split wrong, matters more than the headline percentage itself.

What Percentage of Revenue Should a Growing SMB Spend on Marketing in 2026?

Somewhere between 7% and 12% of revenue is a defensible starting range for a growing UK business in 2026, with smaller and younger businesses often needing to sit toward the higher end.

The Gartner CMO Spend Survey, which covers businesses across the UK, US and Europe, puts average marketing spend at 7.7% of revenue. That average sits lower than the figure most growing SMBs actually need, because it blends in large, established businesses that already have brand recognition built over years. Research focused specifically on smaller UK businesses under roughly £10 million in revenue puts the realistic range meaningfully higher, often into the low-to-mid teens as a percentage of turnover, because fixed marketing costs such as a website, tools and content production make up a larger share of a smaller top line. A business actively trying to gain market share, rather than simply maintain its position, should expect to sit toward the top of whatever range it lands in.

Where Does the Money Actually Go?

For most SMBs, marketing budget splits across three buckets, in roughly this order of size: paid acquisition, content and organic, and tools and people.

Broader industry data on how marketing budgets get allocated shows paid media typically taking the largest single share, followed by martech and software, then labour and agency spend split across the remainder. The exact proportions shift by business type, but the ordering tends to hold for growing SMBs too: money goes to ads first, because ads are the easiest lever to switch on and measure, then to the tools and people needed to sustain everything else.

What’s the Most Common Mistake in How That Split Gets Spent?

The most common mistake is over-funding paid acquisition because it is the most measurable lever, while the content and positioning work that would make that same paid spend more efficient goes neglected.

Paid ads produce a number almost immediately: impressions, clicks, a cost-per-lead figure to report on. Positioning and content work produces nothing as quickly, so it is easy to under-fund in a budget conversation, even though weak positioning is often the reason paid spend performs badly in the first place. Money spent amplifying a message that has not been tested and sharpened does not fix the message. It just gets the weak version in front of more people, faster.

What Does Software Alone Cost Before a Campaign Even Runs?

A typical SMB marketing stack, covering a CRM, email platform, design tools, analytics and SEO software, realistically runs into several hundred pounds a month before a single campaign goes live, and costs creep further as more tools get added.

Individually, most of these tools look cheap. A CRM tier here, an SEO tool there, a design subscription nobody remembers signing up for. Added together, a lean stack for a small business can sit in the low hundreds a month, while a fuller stack supporting paid campaigns, content production and reporting across a growing business commonly runs closer to four figures monthly. Few businesses ever audit what they are actually using against what they are still paying for, and tool subscriptions rarely cancel themselves.

Where Does Efficiency Actually Come From?

Efficiency comes from spending on the right sequence, not from spending the most.

“Every pound spent amplifying a weak message just amplifies the weakness faster.”

The businesses getting the strongest return are not necessarily the ones with the biggest budgets. They fix conversion on the website before scaling ad spend into it. They get positioning right before producing content at volume. Every pound spent driving traffic to a website that does not convert is a pound spent finding out the website does not convert, repeatedly, at increasing cost.

How Do You Know If Budget or Direction Is the Real Constraint?

Ask honestly: if this month’s marketing budget doubled overnight, would you know exactly what to do with it? If the answer is unclear, the constraint right now is direction, not budget, and that is worth solving before adding more spend.

This is where most growing businesses get the benchmark question backwards. They ask how much to spend before they know what the money would actually buy them. A prioritised view of what is broken, what is working, and what the next pound should fund answers a more useful question than any percentage-of-revenue benchmark ever will.

We know this because it is the starting point of every Marketing Audit we deliver: twenty years of senior marketing experience going into a specific answer for your business, not a generic percentage. From there, most growing businesses follow the same path:

1. Get a Marketing Audit to see exactly where current spend is working and where it isn’t.
2. Move into monthly direction so every pound of budget has a clear, prioritised purpose.
3. Build compounding return every month, reported against the same numbers each time.

Skip that step and the risk compounds quietly: budget increases that do not translate into proportional results, spend chasing the same weak message harder, another year of guessing at the right percentage instead of knowing where the money should go. Get the sequence right and budget stops being a guess. It becomes a plan you can defend to the rest of the business, with every pound tied to a specific priority.