The Budget Question Nobody Answers Properly
Every article about marketing budgets says "spend 5–10% of your revenue." That's not wrong, but it's not very helpful either. If you're a sole trader plumber turning over £60,000, should you really be spending £6,000 a year on marketing? And if so, where should that money actually go?
This guide gives you a practical framework for setting a marketing budget based on where your business is today, where you want it to be, and which channels actually deliver for trade businesses in the UK.
The Revenue Percentage Method
The most common approach is allocating a percentage of your annual revenue (or target revenue) to marketing. But the right percentage depends on your business stage:
| Business Stage | Recommended % of Revenue | Why |
|---|---|---|
| Startup (Year 1–2) | 10 – 15% | Need to build visibility from zero |
| Growing (Year 2–5) | 7 – 12% | Expanding customer base and services |
| Established (5+ years) | 5 – 8% | Maintaining position, steady growth |
| Dominant in your area | 3 – 5% | Defending market share, brand established |
What This Looks Like in Real Numbers
| Annual Revenue | Startup (12%) | Growing (9%) | Established (6%) |
|---|---|---|---|
| £40,000 | £4,800 | £3,600 | £2,400 |
| £75,000 | £9,000 | £6,750 | £4,500 |
| £120,000 | £14,400 | £10,800 | £7,200 |
| £200,000 | £24,000 | £18,000 | £12,000 |
| £500,000 | £60,000 | £45,000 | £30,000 |
If you're a sole trader electrician turning over £75,000 and you've been trading for three years, a marketing budget of around £6,000–£7,000 per year (roughly £500–£580/month) is a reasonable starting point.
The Goal-Based Method
If the percentage approach feels arbitrary, try working backwards from your goals:
Step 1: How Many New Customers Do You Need?
Calculate how many new customers you need per month to hit your revenue target:
- Target annual revenue: £120,000
- Revenue from existing/repeat customers: £70,000
- Revenue needed from new customers: £50,000
- Average job value from new customers: £400
- New customers needed: 125 per year, or roughly 10–11 per month
Step 2: What Does It Cost to Acquire a Customer?
For most UK trade businesses using Google Ads:
| Trade | Typical Cost Per Lead | Lead-to-Customer Rate | Cost Per Customer |
|---|---|---|---|
| Plumber | £30 | 30% | £100 |
| Electrician | £35 | 30% | £117 |
| Landscaper | £25 | 25% | £100 |
| Roofer | £55 | 25% | £220 |
| Builder | £75 | 20% | £375 |
| Heating engineer | £45 | 30% | £150 |
Step 3: Calculate Your Budget
Monthly budget = New customers needed × Cost per customer
Using our electrician example:
- 11 customers × £117 = £1,287/month or £15,444/year
That's about 13% of target revenue — higher than the "established" range but appropriate if the business is actively trying to grow.
Where to Allocate Your Budget
Not all marketing channels are equal for trade businesses. Here's how to split your budget based on what actually works:
For a Startup Trade Business (£400/month budget)
| Channel | Monthly Spend | Purpose |
|---|---|---|
| Google Ads | £250 (63%) | Immediate leads from search |
| Google Business Profile | £0 (free) | Local visibility, reviews |
| Vehicle branding | One-off £300–£800 | Ongoing local awareness |
| Business cards & flyers | £50 (12%) | Leave-behinds, local drops |
| Website hosting & domain | £20 (5%) | Online presence |
| Listings (Checkatrade etc.) | £80 (20%) | Additional lead sources |
For a Growing Trade Business (£800/month budget)
| Channel | Monthly Spend | Purpose |
|---|---|---|
| Google Ads | £500 (62%) | Primary lead generation |
| SEO / content | £150 (19%) | Building organic traffic over time |
| Social media (organic) | £0 (free, time investment) | Brand building, showcasing work |
| Google Business Profile | £0 (free) | Reviews, local rankings |
| Listings / directories | £80 (10%) | Supplementary leads |
| Email to past customers | £20 (3%) | Repeat business, referrals |
| Uniforms / vehicle branding | £50 (6%) amortised | Professional image |
For an Established Trade Business (£1,500/month budget)
| Channel | Monthly Spend | Purpose |
|---|---|---|
| Google Ads | £800 (53%) | Scaled lead generation |
| SEO / content marketing | £300 (20%) | Long-term organic growth |
| Social media ads | £150 (10%) | Brand awareness, retargeting |
| Email marketing | £50 (3%) | Customer retention, upselling |
| Review management | £50 (3%) | Reputation building |
| Photography / video | £100 (7%) | Portfolio, case studies |
| Sponsorships / community | £50 (3%) | Local brand building |
Channel-by-Channel Breakdown
Google Ads: The Primary Engine
For most trade businesses, Google Ads should take the largest share of your budget. It's the only channel that puts you in front of people actively searching for your service right now.
Expect to spend a minimum of £300/month to generate meaningful results. Below that, you won't get enough clicks to convert reliably.
For more on what to expect from your Google Ads spend, read our guide on how many leads Google Ads should generate.
SEO and Content Marketing: The Long Game
SEO is worth investing in but it takes time — typically 6–12 months before you see meaningful organic traffic. It's a complement to paid ads, not a replacement.
Budget £100–£300/month for content creation (blog posts, service pages, local landing pages) or invest your own time writing useful content.
Google Business Profile: Free but Critical
This costs nothing but time. Keep your profile updated, post regularly, respond to every review, and add photos of your work. A strong Google Business Profile improves both your organic visibility and your Google Ads performance.
Vehicle Branding and Physical Marketing
Don't overlook offline marketing. A well-branded van is seen by thousands of people every day. Business cards left with customers prompt referrals. Leaflet drops in target neighbourhoods work for some trades.
These are typically one-off or low-recurring costs with long-lasting impact.
Common Budgeting Mistakes
1. Spending Nothing and Expecting Growth
If your diary has gaps and you're not marketing, the gaps won't fill themselves. Even a modest budget of £300–£400/month can generate a steady stream of new customers.
2. Spending Everything on One Channel
Diversification matters. If 100% of your leads come from Google Ads and your account gets suspended (it happens), your pipeline drops to zero overnight. Have at least two active lead sources.
3. Cutting Marketing When Times Get Tough
This is counterintuitive but important: the worst time to cut your marketing budget is when business is slow. That's when you need leads most. Cut back during your busy periods when you're turning work away, not during the quiet months.
4. Not Tracking What Works
If you don't know which channel generated each lead, you can't optimise your budget. Simple question to every new customer: "How did you find us?" Log the answer. After three months, you'll know exactly where to increase and decrease spending.
5. Comparing Yourself to Large Companies
A national franchise spending £50,000/month on advertising operates in a completely different reality to a local sole trader. Compare your budget to similar businesses in your area, not to brands with dedicated marketing departments.
Adjusting Your Budget Over Time
Your marketing budget isn't fixed. Review it quarterly and adjust based on:
- Results: Increase spend on channels that deliver, reduce or cut those that don't.
- Capacity: If you're turning away work, you might be over-spending. If your diary has gaps, consider increasing.
- Seasonality: Shift budget toward peak demand periods. Read our seasonal marketing guide for a month-by-month framework.
- Growth goals: Planning to take on a new employee? You'll need more leads to keep them busy — increase your budget before they start.
Get a Budget That's Right for Your Business
Every trade business is different. Your ideal marketing budget depends on your trade, your area, your competition, and your growth ambitions.
Get a free audit from SwiftLead and we'll assess your current marketing, benchmark your spend against similar businesses, and recommend a budget that fits your goals — with clear projections on the leads and revenue you can expect.
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