Knowing your numbers is only half the picture. Knowing how your numbers compare to businesses of similar size in your sector is what tells you whether you have a performance problem or a market problem. This page compiles 2025/26 benchmark data for UK SMEs across gross margin, net margin, debtor days, cashflow, and payroll ratios — by sector.
Data sources: Companies House filed accounts, Office for National Statistics Annual Business Survey, British Chambers of Commerce SME data, and 3DMAI platform anonymised aggregate data. Ranges reflect the interquartile range for businesses with £250k–£5m annual turnover.
How to use this data: These are benchmarks, not targets. A gross margin below the benchmark is a signal to investigate, not automatically a problem. Context matters: a distributor with 22% gross margin may be performing well if the sector benchmark is 20%. The same margin in a professional services business is a red flag.
Gross margin benchmarks by sector
| Sector | Lower quartile | Median | Upper quartile | What drives margin |
|---|---|---|---|---|
| SaaS / software | 62% | 73% | 82% | R&D capitalisation, hosting costs |
| Professional services | 52% | 64% | 76% | Utilisation rate, seniority mix |
| E-commerce (own brand) | 38% | 48% | 58% | Returns rate, fulfilment costs |
| Recruitment / staffing | 18% | 24% | 32% | Permanent vs contract mix |
| Manufacturing | 28% | 38% | 48% | Labour efficiency, material yield |
| Wholesale / distribution | 18% | 24% | 32% | Volume pricing, supplier terms |
| Retail (bricks & mortar) | 35% | 44% | 54% | Shrinkage, markdown frequency |
| Construction & trade | 22% | 30% | 40% | Subcontractor mix, variation claims |
| Hospitality | 55% | 65% | 72% | Food/drink mix, portion control |
| Marketing / digital agency | 48% | 58% | 68% | Media pass-through treatment |
| Import & wholesale | 22% | 40% | Landed cost, FX exposure |
Net margin benchmarks by sector
| Sector | Lower quartile | Median | Upper quartile |
|---|---|---|---|
| SaaS / software | 8% | 16% | 24% |
| Professional services | 12% | 18% | 26% |
| E-commerce (own brand) | 4% | 9% | 14% |
| Recruitment / staffing | 3% | 6% | 10% |
| Manufacturing | 4% | 8% | 14% |
| Wholesale / distribution | 2% | 5% | 9% |
| Retail (bricks & mortar) | 3% | 6% | 11% |
| Construction & trade | 3% | 7% | 12% |
| Hospitality | 3% | 7% | 12% |
| Marketing / digital agency | 8% | 14% | 20% |
Debtor days benchmarks
Debtor days measure how long on average it takes to collect payment after invoicing. Formula: (Trade debtors ÷ Annual revenue) × 365.
| Sector | Typical range | Healthy target | Warning level |
|---|---|---|---|
| Professional services | 30–55 days | Below 35 | Above 60 |
| Manufacturing (B2B) | 35–60 days | Below 40 | Above 70 |
| Distribution / wholesale | 35–65 days | Below 45 | Above 75 |
| Construction | 45–75 days | Below 55 | Above 90 |
| E-commerce (B2C) | 1–5 days | Below 3 | Above 10 |
| Retail | 1–7 days | Below 5 | Above 14 |
| Recruitment | 25–50 days | Below 35 | Above 60 |
Payroll as a percentage of revenue
Payroll ratio is one of the most important indicators of business model health. It measures whether your headcount is appropriately sized for your revenue. Formula: Total payroll cost ÷ Annual revenue.
| Sector | Lower quartile | Median | Upper quartile | Warning level |
|---|---|---|---|---|
| Professional services | 42% | 52% | 62% | Above 70% |
| SaaS / software | 35% | 48% | 60% | Above 70% |
| Recruitment / staffing | 12% | 18% | 24% | Above 28% |
| Manufacturing | 18% | 25% | 32% | Above 40% |
| Wholesale / distribution | 10% | 16% | 22% | Above 28% |
| Retail | 14% | 20% | 28% | Above 35% |
| Hospitality | 28% | 36% | 44% | Above 50% |
| Marketing / agency | 38% | 48% | 58% | Above 65% |
Revenue per employee
Revenue per employee is a simple efficiency metric: Annual revenue ÷ Full-time equivalent headcount.
| Sector | Lower quartile | Median | Upper quartile |
|---|---|---|---|
| SaaS / software | £80k | £130k | £210k |
| Professional services | £70k | £95k | £140k |
| Wholesale / distribution | £180k | £280k | £420k |
| Manufacturing | £80k | £120k | £180k |
| E-commerce | £120k | £200k | £340k |
| Retail | £80k | £120k | £180k |
| Construction | £60k | £90k | £140k |
| Recruitment | £80k | £130k | £200k |
Stock cover and inventory benchmarks
Stock cover = (Closing stock ÷ Cost of sales) × 52 weeks. Measures how many weeks of trading your current stock covers.
| Sector | Healthy range (weeks) | Over-stocked warning | Under-stocked warning |
|---|---|---|---|
| Wholesale / distribution | 4–8 weeks | Above 12 | Below 3 |
| Manufacturing | 3–6 weeks | Above 10 | Below 2 |
| Retail (FMCG) | 2–4 weeks | Above 6 | Below 1 |
| Retail (fashion/seasonal) | 4–8 weeks | Above 14 | Below 2 |
| E-commerce | 3–6 weeks | Above 10 | Below 2 |
| Import businesses | 8–14 weeks | Above 20 | Below 5 |
Marketing spend benchmarks
Marketing spend as a percentage of revenue varies significantly by sector and growth stage. These benchmarks apply to established businesses (3+ years trading), not start-ups in rapid growth mode.
| Sector | Conservative | Typical | Growth-focused |
|---|---|---|---|
| B2C e-commerce | 8% | 15% | 22%+ |
| B2B professional services | 3% | 6% | 10% |
| SaaS / software | 12% | 20% | 35%+ |
| Retail | 3% | 7% | 12% |
| Manufacturing (B2B) | 1% | 3% | 6% |
| Hospitality | 2% | 5% | 8% |
Compare your business against these benchmarks
The 3DMAI Financial Intelligence Tool analyses your numbers and flags where you are above or below sector benchmarks automatically.
2026 context: what the benchmarks are not telling you
These benchmarks represent median performance. The median UK SME in 2026 is under pressure from four directions simultaneously: National Living Wage at £12.21/hour (up from £11.44 in April 2025), energy costs approximately 70% above 2021/22 levels, persistent B2B payment delays (average UK debtor days rising, not falling), and rising employer NI costs following the April 2025 budget changes (Secondary Class 1 NI rate at 15%, threshold down to £5,000).
Performing at the sector median in 2026 means you are holding ground, not advancing. Businesses in the upper quartile on gross margin and payroll ratio are significantly more resilient to the cost environment than those at the median or below.
The single highest-leverage action available to most UK SMEs is gross margin improvement. A 3% improvement in gross margin on £1m revenue generates £30,000 of additional contribution, which compounds into enterprise value at 4–5× if the business is ever sold.