Capital allowances: the tax relief hiding in your fixed asset register

Capital allowances are how tax systems give relief for money spent on assets rather than on running costs. Depreciation in your accounts is not deductible; the allowance regime replaces it with its own rules, its own pools and its own rates. The practical consequence is that two companies with identical spending can end up with materially different tax bills, and the difference is usually not clever planning — it is whether anyone looked at the asset register in enough detail to classify what was bought.

How capital allowances are structured

• Qualifying expenditure is allocated to pools — main rate, special rate, or single-asset — and each pool has its own writing-down rate.
• Annual investment allowances or first-year allowances give immediate relief up to a limit, which is usually worth claiming before anything else.
• Some assets sit outside the regime entirely, land being the obvious one, and buildings being the complicated one.
• Disposals reduce the pool, and disposing of an asset that attracted a first-year allowance can create a taxable balancing charge.
• Rates, limits, pool definitions and the availability of full expensing differ by country and change frequently — the structure above is general, the numbers are not.

What gets missed

1. Fixtures inside a purchased building: heating, lighting, sanitary ware and similar plant can attract allowances, and this is routinely unclaimed because the purchase was recorded as one number.
2. Fit-out and refurbishment, where a single contractor invoice bundles qualifying plant with non-qualifying structure and nobody asked for the breakdown.
3. Software and IT, where treatment depends on whether it was capitalised and on the specific regime.
4. Assets scrapped but never removed from the register, which distorts both the pool and the insurance schedule.
5. Integral features moved into the wrong pool, which changes the rate rather than the eligibility and is quietly expensive over time.

Ask for a cost breakdown at the point of purchase, not at the point of claim. A contractor will itemise a fit-out invoice on request while the job is live; three years later they may no longer have the detail, and the apportionment becomes an estimate you have to defend. This one habit is worth more than any retrospective exercise.

Why the asset register decides the answer

• One line per asset with what it actually is, not what the invoice was called — "office refurbishment £80,000" cannot be pooled.
• Date of acquisition, cost, and the supplier documentation reference, so the breakdown can be found again.
• Pool allocation recorded against the asset with the reasoning, since the classification is a judgement someone will question.
• Disposals recorded when they happen, with proceeds, rather than discovered at a stocktake.
• Where an asset is leased rather than owned, the treatment is different and lease accounting governs the accounting side — the two must not be double-counted.

Where the register lives

Ettex Records keeps the fixed asset register as one record per asset with cost, date, description, pool and disposal status, which is the form the claim needs and the form an enquiry asks for. The value is in the description field being written by someone who knows what the thing is, at the time it was bought. It feeds the fixed asset register work you already do for the accounts — the same register, with a tax column. Ettex does not compute allowances, does not know your jurisdiction’s rates and gives no tax advice; for anything involving property fixtures, a specialist survey usually pays for itself several times over.