BIM46545 | Specific deductions: provisions: examples of allowable provisions
From HM Revenue & Customs · Business Income Manual
Examples of provisions which will generally be allowable to the extent that they are sufficiently accurate and accord with GAAP include those made:
in the period of sale for the cost of work under a warranty which a trader gives on the sale of merchandise (or under consumer protection legislation),
for commission refundable by an insurance intermediary on the lapse of a policy where the commission is recognised as income at the inception of the policy,
by builders for rectification work, including retentions up to the level that these have been recognised as income within accounts,
for future maintenance of plant and machinery made in circumstances that appear indistinguishable from those in Johnson v Britannia Airways Ltd [1994] 67TC99 (such provisions are however outlawed by Section 21 of FRS102 for assets owned by the business).