Fixtures & Fittings: Maximise Tax Relief With Correct Asset Allocation

Why Asset Classification Matters More Than You Think

When your limited company purchases fixtures and fittings — whether fitting out an office, a commercial property, or a client-facing space — the way you classify each asset determines how quickly you get tax relief. Plant and machinery (P&M) qualifies for capital allowances, including the 100% Annual Investment Allowance (AIA). Chattels and certain building fixtures, however, may fall into different categories with slower or no relief. Getting the split right is not optional — it is fundamental to your tax strategy.

Understanding the Key Definitions

Plant and machinery includes assets used in the course of your trade: computers, machinery, tools, fitted furniture used functionally, heating and ventilation systems, and electrical installations. Under CAA 2001, these qualify for capital allowances.

Chattels are tangible, moveable assets — items not permanently attached to the building. A freestanding desk is a chattel. A built-in reception desk bolted to the floor is likely a fixture. This distinction matters because fixtures become part of the land or building, and their tax treatment depends on whether they qualify as P&M under the capital allowances rules.

Fixtures are assets that are installed in or fixed to a building. They can still qualify as P&M — for example, a fitted kitchen in a staff canteen or a commercial air conditioning unit — but they must meet the statutory tests set out in CAA 2001 s.21-23, which exclude certain structural and decorative items.

The Statutory Exclusions You Must Know

HMRC specifically excludes the following from P&M capital allowances, treating them as part of the building structure instead:

• Walls, floors, ceilings, doors, and stairs
• Decorative assets provided purely for aesthetic purposes
• Tunnels, bridges, and other structures
• Land alterations and drainage systems (with limited exceptions)

However, items that are functionally necessary for the business — such as a suspended ceiling that houses ventilation ducts, or a raised floor that carries electrical cabling — may still qualify as P&M because their primary purpose is functional, not structural.

The Correct Allocation Process

When acquiring or fitting out a property, follow this practical process:

• Itemise everything: Request a full breakdown from your contractor or supplier. Never accept a lump-sum invoice if you want to claim capital allowances accurately.
• Apply the functionality test: Ask whether each asset is there to facilitate the business operation (likely P&M) or simply to provide shelter and setting (likely excluded).
• Use a specialist surveyor for large projects: For fit-outs above £50,000, a capital allowances surveyor can identify qualifying expenditure you might miss and produce a defensible report for HMRC.
• Pool correctly: General P&M goes into the main pool (18% writing-down allowance). Integral features — electrical systems, cold water systems, lifts, solar panels, and thermal insulation — go into the special rate pool (6% WDA). Use AIA to write off either pool in full up to the £1 million annual limit.

The Section 198 Election Trap in Property Purchases

If your company buys a commercial property that already contains fixtures, you must make a joint Section 198 election with the seller to fix the transfer value of those fixtures. Without it, HMRC may deny your capital allowances claim entirely. The election must be submitted within two years of completion. This is a frequently missed step that can result in permanent loss of relief.

Practical Example

Your company spends £120,000 fitting out a new office. A surveyor identifies £75,000 as qualifying P&M (lighting, IT infrastructure, kitchen equipment, carpets with acoustic function) and £45,000 as structural or purely decorative (partition walls, painted surfaces, feature cladding). You claim AIA on the £75,000, saving your company £14,250 in corporation tax at 19% in year one — rather than depreciating the full amount over years with no relief on the excluded items.

Key Takeaway

Never treat fixtures and fittings as a single line in your accounts. A careful, item-by-item classification — backed by professional advice on larger projects — is the difference between claiming maximum relief now and leaving money locked up for years or lost entirely.