How Much Should a Small Business Actually Spend on Marketing?

How much should a small business spend on marketing? It's a reasonable question, especially when budgets are tight and every new subscription, agency fee or advertising test needs to justify itself.

You'll often see a percentage of revenue offered as the answer. That can be a useful comparison, but it is not a budget strategy. A business earning £100,000 a year with strong repeat customers faces different decisions from a newly launched company with the same revenue and no reliable source of enquiries.

The better starting point is to work backwards from what you want marketing to achieve, what a customer is worth and what your business can afford to test without putting its finances under pressure.

There is no universal marketing budget percentage

Some industry studies report marketing spend as a percentage of company revenue, but those averages depend heavily on sector, business model, growth stage and what is counted as marketing. Advertising alone is not the same as total marketing expenditure.

Instead of adopting a percentage uncritically, ask: do we need new customers, better conversion from existing enquiries, stronger retention, or more visibility in a market where nobody knows us yet?

Two businesses with identical turnover may reasonably choose very different levels of investment. For an early-stage business, the first priority may be customer research and a credible website. For a firm with strong foundations, it may be expanding a channel that already attracts profitable customers.

Step 1: Set a specific commercial objective

'Grow awareness' is too vague to build a meaningful budget on its own. Try something measurable and connected to your business, such as 'generate 20 additional qualified enquiries per month' or 'increase repeat bookings from existing customers'.

Define what a qualified enquiry means. A request outside your service area or well below your minimum project size may be counted as a lead by an advertising platform, but it isn't equally valuable to your business.

Step 2: Understand the economics of a customer

Work out the revenue and estimated gross profit a typical new customer generates over a period that makes sense for your business. Consider repeat purchases, delivery costs and the time it takes to collect revenue.

For example, suppose a consultancy earns an estimated £1,500 in gross profit from each newly acquired customer over the period being considered. Four additional customers could contribute £6,000 in gross profit before marketing and other overhead costs. This is an illustration, not a forecast.

If the consultancy converts one in five qualified enquiries into customers, it would need roughly 20 qualified enquiries to win four customers at that conversion rate. If it allowed £1,800 for the month's marketing activity, the implied total cost per qualified enquiry would be £90. Actual outcomes will vary, and acquisition costs should be assessed against profit and cash flow rather than turnover alone.

Step 3: Include the full cost of marketing

A common budgeting mistake is to set aside money for advertising but forget the cost of creating and managing campaigns, improving the website, producing content, setting up measurement and handling the leads generated.

Your budget may need to cover:

• Strategy and research: customer insights, competitor analysis and planning.
• Creative and content: copywriting, design, photography, video and landing pages.
• Media: money paid directly to Google, Meta or other advertising platforms.
• Management: specialist help, agency or freelancer fees, campaign optimisation and reporting.
• Technology: website, email tools, analytics and CRM subscriptions.
• Internal time: staff involvement, reviews and responding to enquiries.

For illustration, an £1,800 monthly budget could contain £700 for advertising, £800 for management and content work, and £300 for website improvements and tools. These figures are hypothetical and aren't Verve & Metric's prices.

If you're researching agency fees specifically, see our separate guide to how much a marketing agency costs in the UK. Your overall marketing budget and an agency's service fees are related questions, but they are not interchangeable.

Step 4: Allocate money according to your stage

Starting out: clarity before scale

Invest in learning what customers actually value, refining your offer, producing a credible website and testing a manageable route to your audience. Don't commit to a large advertising retainer before you can confidently explain why someone should buy from you.

Growing: focus on the channels with evidence

Once customers buy consistently, look at where the strongest enquiries originate. Improve the most promising channel, track the cost of qualified leads and expand carefully instead of starting several campaigns at once.

Established: don't neglect retention

For a company with an existing customer base, customer communications, useful email journeys, CRM processes and repeat business may deserve as much attention as acquisition. Evaluate whether winning another customer is actually the most valuable next move.

Step 5: Set a sensible test period

Different activities operate on different timescales. A paid search campaign can generate feedback relatively quickly, although optimisation and enough conversion data still take time. Search visibility and thought leadership often require a longer period of consistent work and measurement.

Agree in advance what you'll assess in the first month, after a quarter and later. Early indicators might include improved enquiry quality, clearer conversion tracking or better-performing landing pages. Avoid declaring success or failure based on one unusually good or bad week.

How to decide what to cut when money is tight

Start with costs that don't support your priorities. You may be paying for overlapping tools, producing content for audiences you don't serve, or running ads that generate activity without qualified enquiries. Evaluate evidence before pausing a channel, especially if the sales cycle is long.

If you cannot measure what happens after an enquiry, fix that before increasing lead-generation spend. And if your homepage still leaves visitors confused about what you offer, clearer positioning may be worth more than another advertising platform.

A simple small-business marketing budget worksheet

You can begin with six numbers, even in a spreadsheet:

1. Target number of additional customers.
2. Expected gross profit per new customer over your measurement period.
3. Current conversion rate from qualified enquiry to customer.
4. Estimated qualified enquiries required.
5. Maximum marketing investment you can responsibly make.
6. Cost per qualified enquiry and customer that would make that investment viable.

Review these figures monthly. Add the quality of leads, your sales cycle and retention as your measurement becomes more reliable. The point isn't perfect prediction; it's knowing what you're investing in and what success would mean.

The best budget is one you understand

There is no advantage in spending more simply to appear ambitious. Equally, repeatedly postponing basic marketing work may leave a genuinely good business invisible.

At Verve & Metric, we work with small and growing businesses to establish priorities before recommending channels. Our Foundations, Growth and Nurture & Retain services are built around that principle.

If you're deciding where to invest next, get in touch for a practical conversation about what your business needs now and what can wait.