Is staff training a deductible business expense?
Answered 11 March 2026
Here is a comprehensive answer on the deductibility of staff training costs.
Is Staff Training a Deductible Business Expense?
Yes, in most cases — but it depends on who is being trained, the purpose of the training, and whether the expenditure is revenue or capital in nature. The key tests are the "wholly and exclusively" rule and the capital/revenue distinction.
What the law says
Under s.34(1) ITTOIA 2005 (for income tax/self-employed) and the equivalent s.54(1) CTA 2009 (for corporation tax), no deduction is allowed for expenses not incurred wholly and exclusively for the purposes of the trade. However, where an expense is incurred for more than one purpose, a deduction may still be made for any identifiable part or proportion that is incurred wholly and exclusively for trade purposes.
HMRC guidance / practice
1. Training costs for employees (employer's perspective)
HMRC takes a generous view of staff training costs. It is difficult to see how s.34(1)/s.54(1) would disallow expenditure on the training and development of staff whose relationship with their employer is limited to the employment itself. This applies even where:
- the training is not directly related to the employee's current job (e.g. training relevant only if the employee wins promotion); and
- the employee derives considerable personal enjoyment or satisfaction from the training.
However, where the employee or director has a significant proprietary stake in the business, or is a relative of those who do, there is a much greater risk that the expenditure was incurred not wholly for business purposes but to provide a personal benefit — in which case it is not deductible.
2. Training costs for the self-employed / business owner
For a self-employed person training themselves, the key distinction is:
| Scenario | Treatment |
|---|---|
| Training updates existing skills/knowledge in the existing business area | Allowable revenue expenditure |
| Training acquires new skills to keep pace with technology/industry changes in the existing business area | Allowable |
| Training is unrelated to the existing business (e.g. to start a new business or expand into a new area) | Disallowable — likely capital |
The capital/revenue distinction is critical: expenditure on skills or expertise will be of a revenue nature if the training relates to the individual's existing business area.
Similarly, for partnerships, training costs to update the skills and professional expertise that partners already possess are normally allowable as revenue expenditure. However, costs may not be allowable where a completely new specialisation or qualification will be acquired.
3. Illustrative examples from HMRC guidance
- ✅ A wedding photographer attending a refresher course on photo editing software — allowable
- ✅ A gas boiler fitter training on heat pump systems (new technology replacing existing work) — allowable
- ✅ A personal trainer attending a nutrition course to better serve existing clients — allowable
- ❌ An unemployed person completing a course to start a new driving instructor business — disallowable (new skills for a new business)
- ❌ In Dass v Special Commissioner [2006] EWHC 2491 (Ch), a tutor in English who took a law diploma course was denied a deduction — the course equipped him with a new qualification to venture into new areas of practice unrelated to his existing business, and the costs were held to be capital
Summary
| Scenario | Deductible? |
|---|---|
| Employer training arm's-length employees (any skills) | ✅ Generally yes |
| Employer training owner/director/family member | ⚠️ Risk of disallowance if personal benefit |
| Self-employed updating skills in existing business area | ✅ Yes |
| Self-employed acquiring new skills for a new/unrelated business | ❌ No (capital or non-business purpose) |
The answer will always depend on the specific facts and circumstances of each case.
Citation sources
business. The costs are therefore likely to be an allowable expense. Example 5 Aditya fits gas boilers. He completes training to install heat pump systems because he thinks he will need these skills to future-proof his business as heat pumps are new and upcoming technology and an alternative to gas boilers. The cost of the training is likely to be allowed as an expense of his business as heat pumps will replace gas boilers and Aditya is acquiring skills to keep up to date with modern technology
Expenditure incurred by the owner of a business on training courses for themselves is revenue expenditure if the course or learning either updates existing expertise or knowledge or provides new expertise or knowledge in the individual's existing business area. Costs incurred on training to acquire new skills or knowledge to keep pace with advancements in technology and changes in industry practices, related to the owner’s existing business area, will usually be allowable. Additionally, expendi
Expenditure on skills or expertise will be of a revenue nature if the training relates to the individual's existing business area. See Dass v Special Commissioner and others [2006] EWHC2491 (Ch), and BIM35660. This includes costs incurred on training that relates to an individual’s business area and is undertaken to acquire new skills or knowledge to keep pace with advancements in technology and changes in industry practices. See BIM35660 for specific examples of when training costs are likely t
ibunals and Exam Boards, and equally clearly it was going to increase Mr Dass's legal knowledge and capabilities. The Special Commissioner went on to decide that the fees were capital in nature: I agree with HMRC that the particular course was one to equip Mr Dass with a new qualification that would have enabled him to venture into new areas of practice, [...]. In the High Court Lightman J upheld the Special Commissioner’s decision on the capital/revenue distinction: The line between the two may
Part 2 Trading income Chapter 4 Trade profits: rules restricting deductions Wholly and exclusively and losses rules Expenses not wholly and exclusively for trade and unconnected losses 34 1 In calculating the profits of a trade, no deduction is allowed for— a expenses not incurred wholly and exclusively for the purposes of the trade, or b losses not connected with or arising out of the trade. 2 If an expense is incurred for more than one purpose, this section does not prohibit a deduction for an
Under [S34(1) ITTOIA 2005 or S54(1) CTA 2009] expenditure is disallowed if it is not incurred wholly and exclusively for the purposes of the business in question. It is important to realise that the test is framed in terms of the purpose of expenditure rather than its result. It does not enable [HMRC] to second guess the wisdom of decisions taken for purely business purposes by reference to the amount of business benefit ultimately obtained from the expenditure. For the same reason, the existenc