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Key Takeaways
A marketing audit reviews how you win customers. It covers the numbers, the market, the website, the channels, the tracking, the sales handoff and the spend, then ranks the fixes.
Most UK audits cost between £400 and £10,000. Quoted ranges run from £0 for an automated scorecard to £10,000 or more for a full multi-channel review.
Price tracks depth, not quality. A £500 review of one channel and a £6,000 strategic audit answer different questions.
A good audit ends in decisions. You should get a baseline score, evidence for each finding, a ranked action list and a 30, 60 and 90 day plan.
A free audit is a sales step. Ask what you keep if you never hire the firm that ran it.
Article Summary
A marketing audit is a structured review of your marketing, from the numbers to the channels. It ends in a ranked list of fixes.
In the UK, quoted prices run from £0 for an automated scorecard to £4,500 to £10,000 for a full multi-channel review. A focused strategic audit sits between £1,500 and £6,000.
In our view, most owner-led businesses get the most from a focused strategic audit. Pay for depth where the money is going, and insist on a plan you can act on.
In this guide
2. What a marketing audit should cover
3. What a marketing audit costs in the UK
4. What you should get at the end
5. Do it yourself or pay for one
Introduction
Owners usually ask for a marketing audit when spend is rising and the results are unclear. Leads feel uneven. Nobody can say which channel is working.
The search results do not help. Prices run from nothing to five figures, and the word audit covers everything from a PDF scorecard to a month of senior work.
This guide sets out what a proper audit covers, what it costs in the UK in 2026 and what you should be handed at the end.
Gartner’s 2026 CMO Spend Survey puts marketing budgets at 7.8% of company revenue, up from 7.7% in 2025. At that rate, £2m of turnover implies about £156,000 a year (our arithmetic).
1. What a marketing audit is
A marketing audit is a structured review of your marketing. It checks what you spend, what it produces and where the process leaks.
It is not a strategy. A strategy says where you are going. An audit says where you are now, with evidence.
It is also different from a channel audit, which reviews one platform. Our guide to a paid advertising account audit covers that case.
A marketing audit looks across every channel, and at the numbers and the sales process behind them.
2. What a marketing audit should cover
A proper audit looks at seven areas. If a quote leaves out more than one, you are buying a partial review.
1. The numbers
Revenue by source, cost per lead, cost per customer, margin and payback. Start here, because everything else is judged against it. If the numbers cannot be pulled together, that is the first finding.
2. Customers and positioning
Who buys, why they buy and how you describe yourself against the alternatives. Check that your message matches what your best customers say.
3. Website and conversion
Whether visitors can see what you do, trust it and act on it. Speed, mobile layout, calls to action and form completion all matter.
4. Channels
Paid ads, search, AI search visibility, email, social and referrals. For each one, what it costs, what it returns and whether to scale it, fix it or stop it.
5. Tracking and attribution
Whether each lead is tied to the source that produced it, all the way to revenue. Without that, every channel report is a guess.
6. Sales handoff and follow-up
How fast leads are answered, what happens to the ones that do not buy and where deals stall. Some marketing problems turn out to be follow-up problems.
7. Team, tools and spend
Who owns what, which tools you pay for and use, and what agencies or freelancers cost against what they deliver.
Add competitor benchmarking to each area. An audit that never looks at competitors cannot say whether your results are good.
Once the audit is done, our guide to B2B marketing campaigns shows how to turn the findings into a plan.
3. What a marketing audit costs in the UK
UK prices run from £0 to more than £10,000. Depth, and the time senior people spend, explain most of the gap.
The table combines ranges from three UK providers’ published guides. They are guideline ranges rather than fixed rates, and VAT treatment varies.
| Type of audit | Typical UK price | What it involves |
|---|---|---|
| Automated scorecard | £0 to £300 | Automated findings with little explanation |
| Freelancer review | £300 to £800 | 4 to 8 hours of review, 1 to 2 weeks |
| Single-channel review | £400 to £2,000 | One channel reviewed by a person |
| Focused strategic audit | £1,500 to £6,000 | Deeper analysis, competitor context, action plan |
| Full multi-channel audit | £4,500 to £10,000 | Several channels reviewed with strategy advice |
| B2B agency audit | £10,000 to £15,000 | 4 to 6 weeks of agency work |
Whito also lists small agency audits at £1,000 to £2,500 over three to four weeks. It lists large agency audits at £3,000 to £5,000 or more over four to six weeks.
Two of these providers sell audits, so each guide favours its own offer. Read the ranges as a spread, not a price list.
An audit tells you what to change. Making the changes is separate work and a separate cost.
A full multi-channel audit is quoted at £4,500 to £10,000, against £400 to £2,000 for a single-channel human review.
Not sure which depth of audit you need?
See if you qualify for a diagnostic call. We will tell you plainly, even if the answer is not us. One Umbrella is rated 5.0 on Clutch across 26 reviews.
4. What you should get at the end
A paid audit should hand you five things.
A baseline score. A number you can measure against in 90 days.
Evidence for each finding. The data and screenshots behind every claim.
Ranked actions. Split into immediate, important and strategic.
A 30, 60 and 90 day timeline. What happens when, and what it should move.
A named owner for each action. Who implements it, whether that is you, the provider or someone else.
These five follow The Digital Academy’s list of what to request from a paid audit.
If you get a long report and no ranked list, you have bought observations. Our guide to the first 90 days of a fractional CMO shows what delivery looks like after the audit.
5. Do it yourself or pay for one
Do it yourself when the question is narrow. If you doubt one channel, start with your own data and the seven areas above.
Pay for one when you cannot see your own blind spots. If you built the marketing, you will tend to defend it. An outside reviewer with no stake in the current set-up is the point.
Match the depth to the stakes. In our view, if you spend £10,000 a month on marketing, a £3,000 audit that finds a leak is cheap. If you spend £500, a scorecard and your own review are enough.
Treat a free audit as the first step of a sales process. That is fine if you know it going in. Ask what you keep if you never hire the firm that ran it.
6. Five questions to ask before you buy
Who does the work? Ask whether it is a senior person or a junior working from a template.
What access do they need? A real audit asks for your analytics, ad accounts and CRM. One that never asks is reading the surface.
What will you receive? Ask for a sample deliverable before you pay.
What will the fixes cost? The audit is the diagnosis. Ask for a rough range for acting on it.
Do they sell the fix? A provider that sells the fix is grading its own homework. We are a provider too, so ask us the same question.
FAQ
What is a marketing audit?
A structured review of your marketing that covers the numbers, customers, website, channels, tracking, sales handoff and spend, and ends in a ranked list of fixes.
How much does a marketing audit cost in the UK?
Quoted UK ranges run from £0 for an automated scorecard to £4,500 to £10,000 for a full multi-channel audit. Focused strategic audits are quoted at £1,500 to £6,000, and B2B agency audits at £10,000 to £15,000.
How long does a marketing audit take?
Whito lists freelancer reviews at one to two weeks, small agency audits at three to four weeks and large agency audits at four to six weeks. Graph Digital quotes four to six weeks for a traditional agency B2B audit.
What is the difference between a marketing audit and a marketing strategy?
An audit shows where your marketing stands now, with evidence. A strategy sets out where you are going and how. The audit comes first and shapes the strategy.
Is a free marketing audit worth it?
It can be, if you treat it as the first step of a sales process. Ask what you keep if you never hire the firm that ran it, and what data they actually reviewed.
Conclusion
A marketing audit is worth paying for when it ends in decisions. It should show what to stop, what to fix and what to do first.
UK prices run from £0 to £10,000 or more, and depth explains the gap. Pick the depth that matches your spend, and ask for the five deliverables before you pay.
About the author
Yusaf Mahmood is the founder of One Umbrella, a fractional CMO provider and growth partner for owner-led UK businesses.
He runs marketing as someone who has carried the number rather than advised on it.
Work with us
One Umbrella is a fractional CMO provider and growth partner based in London and Birmingham. We work with owner-led UK businesses turning over £500,000 a year or more, and we run the delivery ourselves. Read more about One Umbrella.
Book a diagnostic call. See if you qualify. It is a 30-minute call, and we tell you plainly whether we are the right fit.
You can also read our guide to the fractional CMO in the UK or see the West Midlands fractional CMO directory.
To see how consultants and fractional leaders differ, read marketing consultancy vs fractional CMO.
Sources
Gartner, 2026 CMO Spend Survey,
gartner.com
The Digital Academy, Digital marketing audit cost 2026,
thedigitalacademy.uk
Whito, Marketing audit cost guide,
whito.co.uk
Graph Digital, B2B marketing audit cost and timeline,
graph.digital