Tax Guide for Self-Employed Kitchen Fitters
What expenses can a self-employed kitchen fitter claim? CIS deductions, worktop jigs, router cutters, van costs — with a worked tax calculation and refund.
Tax Essentials
- CIS Status
- Yes — 20% deduction
- Typical Income
- £35,000–£50,000
- HMRC Flat Rate
- £60/year (tools & clothing)
- VAT Threshold Risk
- Monitor turnover
- Key Certifications
- CSCS card (Blue Skilled Worker) · NVQ Level 2 in Fitted Interiors
Kitchen fitting is construction work that falls under the Construction Industry Scheme (CIS) when you work for a contractor. If you work as a self-employed kitchen fitter, 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.
Kitchen fitters invest heavily in specialist tools — worktop jigs, routers, and plunge saws — and go through consumables like silicone, adhesive, and router cutters fast. Those costs are all deductible.
What You Can Claim
| Expense | Examples | Typical Annual Cost |
|---|---|---|
| Specialist tools | Worktop jig (Trend KWJ700 ~£90), router (Trend T7EK ~£200), plunge saw (Makita SP6000J ~£330) | £300–£1,000 |
| Consumable cutters | Router cutter packs (Trend CraftPro ~£77), jigsaw blades, hole saws, drill bits | £100–£400 |
| Power tools | Combi drill, impact driver, multi-tool, biscuit jointer | £200–£500 |
| PPE & workwear | Safety boots, knee pads, dust masks, safety glasses | £150–£300 |
| Vehicle costs | Van fuel, insurance, MOT, servicing, road tax | £4,000–£6,000 |
| Materials & consumables | Silicone, worktop sealant, adhesives, screws, connector bolts, edging strips | £200–£800 |
| Insurance | Public liability, tool cover | £60–£250 |
| Training & certifications | CSCS card renewal, NVQ assessment fees, first aid course | £100–£500 |
| Subcontractor costs | Gas Safe engineer for hob connection, electrician for new circuits | £200–£1,000 |
| Phone & apps | Mobile contract (business portion), job management apps | £150–£300 |
| Accounting fees | Tax return preparation, bookkeeping | £150–£400 |
Worktop Jigs and Routers: Your Signature Tools
The worktop jig + router combination is what sets kitchen fitters apart from general carpenters. A Trend KWJ700 jig (£90) and a 1/2" router (£200) are essential for cutting worktop joints. Router cutter packs (Trend CraftPro Kitchen Fitters Pack, ~£77) are consumables that need replacing regularly — fully deductible each time.
Subcontractor Costs
You can't connect gas appliances yourself or carry out notifiable electrical work — you need a Gas Safe registered engineer and a Part P certified electrician. If you include these in your quote and pay the subcontractor directly, the cost is deductible as a business expense.
HMRC Flat Rate Alternative
HMRC allows a £60/year flat rate deduction for tools and specialist clothing. For kitchen fitters, a single router cutter pack costs more than this — claim the real figures with receipts.
Expenses You Can't Claim
- Commuting to a regular workshop — travel to the same location for over 24 months isn't deductible. Travel to different customer kitchens is deductible
- Everyday clothing — jeans and trainers don't qualify. Only specialist PPE counts (safety boots, dust masks, knee pads)
- Your original kitchen fitting qualification — your initial NVQ isn't deductible. Only renewals, upgrades, and CPD 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 Kitchen Fitter Pay?
Mark works as a self-employed kitchen fitter through CIS. Here's his 2025/26 tax year:
| Item | Amount |
|---|---|
| CIS income (gross) | £40,000 |
| CIS deducted (20%) | £8,000 |
| Allowable expenses | £7,500 |
| Taxable profit | £32,500 |
| Income Tax (after £12,570 personal allowance) | £3,986 |
| Class 2 NI (£3.50/week × 52) | £182 |
| Class 4 NI (6% on £12,570–£50,270) | £1,196 |
| Total tax + NI due | £5,364 |
| CIS already deducted | £8,000 |
| Refund due | £2,636 |
Without claiming expenses, his refund would be just £686. Expenses save Mark £1,950. You can claim back your CIS deductions through your Self Assessment return.
Record Keeping Tips
- Keep worktop jig and router invoices — these are your signature tools and a clear, defensible deduction. Store purchase receipts digitally by tax year
- Track router cutter and blade replacements — these consumables add up over the year. Note each purchase with the date and cost
- Save subcontractor invoices — if you pay a Gas Safe engineer or electrician as part of a kitchen install, their invoice is your proof of a deductible expense
- Save your CIS payment statements — you need these to reclaim the 20% deduction. Chase your contractor for missing ones before January
- Log every job and journey — note the customer address and mileage for each kitchen install. Most fitters work at a different property each week
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 kitchen fitters working steadily can approach the £90,000 VAT threshold (2025/26) — especially those who quote labour and materials together. Monitor your rolling 12-month total, which is based on turnover, not profit.
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