Dental Technician Self-Employed Tax Guide UK (2026/27)
How self-employed and freelance dental technicians in the UK are taxed on lab work for dentists, and which materials, equipment and GDC costs are allowable expenses in 2026/27.
How Dental Technician Income Is Taxed
Self-employed dental technicians — working as sole traders supplying practices directly, or running a small lab — pay Income Tax and Class 4 National Insurance on their trading profits through Self Assessment, in the same way as any other self-employed trade.
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Working legally as a dental technician in the UK requires General Dental Council (GDC) registration. The annual renewal fee is generally allowable, because it maintains an existing legal right to practise rather than creating a new one — the same principle that applies to renewal fees across most regulated trades.
Equipment and Materials
- Digital equipment: CAD/CAM scanners and milling machines typically qualify for the Annual Investment Allowance, covering the full cost in the year of purchase (subject to the AIA limit).
- Consumables: dental alloys, porcelain, acrylics and impression materials are deducted in full as revenue expenses when used.
- Traditional hand tools and casting equipment: generally allowable in the same way as other trade tools.
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Frequently asked questions
How is a self-employed dental technician's income taxed?
Fees for making crowns, dentures, bridges and orthodontic appliances for dental practices or labs, whether as a sole trader or running a small lab, are trading income, taxed through Self Assessment via Income Tax and Class 4 National Insurance.
Is GDC registration a tax-deductible cost?
Yes, the annual General Dental Council registration fee required to legally work as a dental technician is generally an allowable business expense, since it is a legal requirement to continue practising the trade, not a one-off cost of first entering it.
Can a dental technician claim for CAD/CAM equipment?
Yes, digital scanning and milling equipment used to design and produce dental appliances is capital expenditure that typically qualifies for the Annual Investment Allowance, letting the full cost be deducted from profits in the year of purchase, subject to the current AIA limit.
What materials can a dental technician claim?
Dental alloys, porcelain, acrylics, impression materials and other consumables used directly in fabricating appliances are ordinary allowable revenue expenses, deducted in full in the year they're used.
Do dental technicians working from a home lab get home-office relief?
Yes, a technician running a lab from part of their home can claim a proportion of household running costs, either via HMRC's simplified flat rates or by apportioning actual costs based on the space and time used for the business.
Does a dental technician need to register for VAT?
Only once taxable turnover crosses the VAT registration threshold in a rolling 12-month period; many dental lab supplies are standard-rated, so it's worth monitoring turnover closely if working with several practices regularly.
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