Tax Guide for Self-Employed Roofers in the UK

Roofing is construction work that falls under the Construction Industry Scheme (CIS). If you work as a self-employed roofer, your contractor deducts 20% from your payments and sends it to HMRC. At the end of the tax year, you file Self Assessment — and the expenses you claim often mean a significant refund.

Roofers face higher costs than many trades — scaffolding hire, specialist safety equipment, and weather-exposed materials push expenses up. All of those costs are deductible.

Tax Essentials at a Glance

Item	Detail
CIS applicable	Yes — roofing is construction
CIS deduction rate	20% (registered) / 30% (unregistered)
Typical income range	£35,000–£50,000
HMRC flat rate expense	£60/year (tools & specialist clothing)
VAT threshold	£90,000 (rolling 12-month turnover, 2025/26)
Industry body	National Federation of Roofing Contractors (NFRC)
Key deadline	31 January — file Self Assessment for 2025/26

What You Can Claim

Expense	Examples	Typical Annual Cost
Tools & equipment	Slate rippers, slate cutters, roofing hammers (Roughneck, Estwing), nail guns, tile cutters, chalk lines	£300–£800
Scaffolding & access	Scaffold tower hire, roof ladders, crawling boards, edge protection	£1,000–£4,000
Safety equipment	Fall-arrest harness (£80–£250), lanyards, anchor points, helmet with chinstrap	£200–£500
PPE & workwear	Safety boots, hard hat, hi-vis, knee pads, waterproofs	£200–£400
Vehicle costs	Van fuel, insurance, MOT, servicing, road tax	£4,000–£6,000
Materials & consumables	Roofing felt/membrane, tiles, slates, lead sheeting/flashing, sealants, battens, nails	£300–£1,500
Insurance	Public liability (typically higher for roofers), tool cover, personal accident	£400–£900
Training & certifications	CSCS card renewal, CITB Working at Heights, NVQ assessment fees, first aid, IPAF/PASMA	£150–£600
Trade body fees	NFRC membership	£200–£500
Phone & apps	Mobile contract (business portion), job management apps	£150–£300
Accounting fees	Tax return preparation, bookkeeping	£150–£400

Scaffolding Hire: A Big Deduction

Scaffolding is often a roofer's largest single expense. Typical hire costs run £600–£1,000/week for a residential job. It's fully deductible — keep every hire invoice.

Certifications That Count

CSCS Blue Skilled Worker or Gold Advanced Craft card — needed for site access. Renewal costs and HS&E test fees are deductible
CITB Working at Heights training — short course commonly required by main contractors before site access (~£150–£300)
NVQ Level 2 in Roofing — on-site assessment fees for renewals or top-ups are deductible (~£595–£995)
IPAF/PASMA training — powered access and mobile tower training, deductible when required by contractors (~£200–£400)
NFRC membership — National Federation of Roofing Contractors annual fee is allowable as a subscription to a professional body

HMRC Flat Rate Alternative

HMRC allows a £60/year flat rate deduction for tools and specialist clothing instead of claiming actual costs. For roofers, harnesses and safety gear alone exceed this — claim the real figures with receipts.

Expenses You Can't Claim

Commuting to a regular site — travel to the same location for over 24 months isn't deductible. Travel between different jobs is
Everyday clothing — waterproof jackets you wear off-site don't count. Only specialist PPE qualifies (harnesses, hard hats, safety boots)
Your original roofing qualification — your initial NVQ isn't deductible. Only renewals and CPD courses count
Fines and penalties — parking tickets, PCNs, late filing penalties
Food and drink — unless you're working away from your normal area overnight

Example: How Much Tax Does a Roofer Pay?

Dan works as a self-employed roofer through CIS. Here's his 2025/26 tax year:

Item	Amount
CIS income (gross)	£42,000
CIS deducted (20%)	£8,400
Allowable expenses	£8,200
Taxable profit	£33,800
Income Tax (20% on profit above £12,570)	£4,246
Class 2 NI (profits above SPT £6,845 — no charge)	£0
Class 4 NI (6% on £12,570–£50,270)	£1,274
Total tax + NI due	£5,520
CIS already deducted	£8,400
Refund due	£2,880

Without claiming expenses, his refund would be about £748. Expenses save Dan around £2,132. You can claim back your CIS deductions through your Self Assessment return — most refunds land within 2-6 weeks of filing, but the CIS refund timeline can stretch longer if HMRC opens a security check.

From 6 April 2026 (the 2026/27 tax year) the simplified mileage rate rises to 55p per business mile for the first 10,000 miles, and the writing-down allowance on the main pool drops to 14%. Those changes apply to the return you file by 31 January 2028 — not the 2025/26 figures above.

Record Keeping Tips

Save scaffolding hire invoices — these are large, easy-to-prove deductions. Keep every invoice with the job address and hire dates
Photograph merchant receipts — receipts for tiles, felt, lead, and fixings from builders' merchants fade on thermal paper. Snap them on your phone the same day
Log every site and journey — note the site address and mileage each day. Roofers often work one site per week, so the log is simpler than many trades
Save your CIS payment statements — you need these to reclaim the 20% deduction. Chase your contractor for missing ones before January
Record safety equipment purchases — harnesses, lanyards, and fall-arrest gear have replacement dates. A log of when you bought each item supports your claim

Key Deadlines

Deadline	What
5 April	Tax year ends — finalise your income and expense records
31 January	File Self Assessment and pay any tax owed (or receive your refund)
31 July	Second payment on account (if applicable)

If this is your first year, register for Self Assessment by 5 October after the tax year ends.

VAT Threshold

With day rates of £180–£250, experienced roofers working steadily can approach the £90,000 VAT threshold (2025/26). At £220/day for 48 weeks, that's over £52,000 from labour — add materials supply and scaffolding pass-through charges and your turnover climbs. Monitor your rolling 12-month total, based on turnover not profit.

Frequently Asked Questions

How much tax does a self-employed roofer pay?

A roofer earning £42,000 gross with £8,200 in allowable expenses pays around £4,246 in Income Tax plus £1,274 in Class 4 National Insurance for the 2025/26 tax year. Class 2 NI is treated as paid (£0) once profits exceed the £6,845 Small Profits Threshold. If CIS deductions of £8,400 have already been taken at source, you'd be due a refund of roughly £2,880 once expenses like scaffolding, harnesses and van costs are claimed.

Can I claim scaffold hire and a fall-arrest harness on my tax return?

Yes — both are fully allowable. Scaffold tower hire, roof ladders, crawling boards, harnesses, lanyards and anchor points are necessary for working at height and count as wholly-and-exclusively business expenses. Keep every hire invoice with the job address; for harnesses, log the purchase date because fall-arrest gear has a recommended replacement window.

Is my CSCS card, NFRC membership or Work at Height training tax-deductible?

Renewals and refresher training are deductible — CSCS card renewals, the Work at Height HS&E test, IPAF/PASMA tickets and NFRC membership fees all qualify. Your original NVQ Level 2 in Roofing Occupations isn't allowable because it qualified you to enter the trade, but on-site NVQ assessment fees for upgrading skills can be claimed.

Is public liability insurance for a roofer tax-deductible?

Yes — public liability premiums for roofers are fully deductible, and they're notably high for this trade (often £400–£800 a year) because working at height carries more risk than ground-level work. Tool cover, personal accident insurance and van insurance are also allowable. Apportion van insurance if you use the vehicle privately.

How do I claim back CIS deductions as a roofer?

File a Self Assessment return showing your gross CIS income and the 20% deductions taken by each contractor. HMRC offsets the deductions against your tax and Class 4 NI bill, then refunds the difference. You need every monthly CIS payment statement — chase missing ones before 31 January, because HMRC requires the figures to match contractor returns.

This guide is for informational purposes only and does not constitute tax, legal, or financial advice. Tax rules change frequently. Always verify current requirements on GOV.UK or consult a qualified accountant for your specific situation.

Official Sources

Expenses if you're self-employed — GOV.UK
Construction Industry Scheme — GOV.UK
Simplified expenses for vehicles — GOV.UK
Self-employed National Insurance rates — GOV.UK
Check if you need to register for VAT — GOV.UK

Tax Essentials