What are allowable legal and professional fees for a business?
Answered 11 March 2026
Allowable Legal and Professional Fees for a Business
What the law says
The general rule is that trading expenses are only deductible if incurred wholly and exclusively for the purposes of the trade (s.34 ITTOIA 2005 / s.54 CTA 2009). Professional fees connected with the acquisition, disposal or modification of a capital asset are capital expenditure and therefore disallowable.
For Capital Gains Tax purposes, allowable incidental costs on acquisition or disposal are limited to:
- Fees, commission or remuneration paid for the professional services of any surveyor, valuer, auctioneer, accountant, agent or legal adviser
- Costs of transfer or conveyance (including Stamp Duty/SDLT)
- Costs of advertising to find a buyer or seller
- Costs reasonably incurred in making any valuation or apportionment required for the CGT computation
The expenditure must have been incurred wholly and exclusively for the purposes of the acquisition or disposal.
HMRC Guidance / Practice
✅ Generally Allowable
| Type of Fee | Notes |
|---|---|
| Accountancy/accounts preparation | Fees for preparing accounts for commercial reasons satisfy the "wholly and exclusively" test |
| Tax compliance (by concession) | There is a longstanding HMRC practice (Statement of Practice SP 16/91) of allowing normal recurring legal/accountancy expenses incurred in preparing accounts or agreeing the tax liability |
| Patent fees | Fees and expenses for obtaining, extending or renewing a patent for the purposes of a trade are allowable, including unsuccessful applications |
| Licence renewals | Legal expenses incurred in obtaining the renewal of an existing licence are allowable |
| Legal fees to protect the trade | Legal costs incurred wholly and exclusively to protect/preserve the business (not personal reputation) are deductible — confirmed in McKnight v Sheppard [1999] |
| Annual company administration | Ordinary annual costs such as maintaining a share register, printing annual accounts, holding AGMs, annual Stock Exchange quotation fees, and annual fees to debenture trustees are allowable |
❌ Generally Disallowable
| Type of Fee | Reason |
|---|---|
| Capital transactions | Fees connected with acquiring, disposing of or modifying a capital asset are capital and disallowable |
| First licence application | Legal expenses for a first licence application are not allowable (Kneeshaw v Albertolli [1940]) |
| Licence transfers | Legal expenses connected with transferring a premises licence are not deductible |
| Flotation/share purchase costs | Costs to effect changes in company status (e.g. flotation, purchase of own shares) are capital and/or have a non-trade purpose |
| Inheritance tax planning | Fees for IHT planning or other non-trade matters cannot be claimed as a trade deduction |
| Tax enquiry fees (careless/deliberate errors) | Additional accountancy fees from an enquiry are not allowable where the enquiry reveals careless or deliberate inaccuracies |
| Setting up an EBT | Legal/professional fees incidental to bringing an Employee Benefit Trust into existence are capital and not allowable |
| Resisting ejection / obtaining new lease against opposition | Such costs stem from a landlord's refusal to renew and are not an admissible deduction |
Key principle: HMRC's detailed guidance on professional fees is at BIM46400 onwards. The overriding test is always whether the fee is revenue in nature and incurred wholly and exclusively for the purposes of the trade.
Citation sources
When accountancy fees incurred in connection with an investigation are allowable is explained at BIM46450 and EM3981. Additional accountancy expenses incurred because of such an enquiry are not allowable if: the enquiry reveals inaccuracies and additional liabilities for the year of enquiry (or any earlier year), and those inaccuracies are careless or deliberate (no penalty should arise where the inaccuracy has arisen despite reasonable care being taken). Where the fee protection policy entitles
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The legal etc expenses incurred in connection with the first application for a licence are not an allowable deduction from trading profits (see Kneeshaw v Albertolli [1940] 23 TC 462). Legal expenses incurred in obtaining renewal of an existing licence are allowable as a deduction. Legal etc expenses connected with the transfer of a premises licence are not deductible from trading profits (see Morse v Stedeford [1934] 18 TC 457).
For detailed guidance on the deduction of professional fees see BIM46400 onwards.
Fees and expenses incurred in obtaining the grant or the extension of the term of a patent for the purposes of a trade are admissible as a deduction in computing the profits of the trade. Fees and expenses incurred in connection with unsuccessful applications for patents for the purposes of a trade are also allowable. Fees incurred for the renewal of a patent for the purposes of a trade are allowable. Agents’ charges in connection with the renewal of a patent are allowable if the renewal fees ar
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Costs incurred by a company to effect changes in its status, for example flotation costs, the initial charges of a Stock Exchange quotation, expenses connected with a purchase of own shares (see BIM46400 onwards and in particular BIM46425 and BIM46460) will not normally be deductible on the grounds that they are: capital (for general guidance see BIM35000 onwards), and/or there is a non-trade purpose in incurring the expense (see BIM42105). But no objection should normally be raised to the deduc