Important Note:

Here we look to help; however it’s important to stress that plant & machinery is not defined in law, and therefore a number of considerations need to be applied when assessing if & when business spend qualifies for capital allowances (e.g. trade, function, item, year of spend, legislation, etc).

What is an example of plant machinery?

There are generally two types of assets that are classified as ‘plant and machinery’ to consider for the purposes of claiming capital allowances:

(1) “Movable” items (often referred to as Chattels), such as:

  • Computers and IT equipment
  • Office furniture
  • Tools and machinery
  • Carpets

(Other qualifying items may include:

(2) Embedded items of plant and machinery, which include:

  • Fixed items of fixtures and fittings (e.g., fitted kitchens, washroom facilities, sanitaryware)
  • Fire alarms
  • Alterations to a building (and sometimes including alterations to land) that are necessary to install items of plant & machinery
  • Integral features such as lifts, air conditioning, water heating systems, and lighting systems
  • Often overlooked items, such as ironmongery on doors and stair nosings

These examples of plant and machinery illustrate the wide scope of what can be included, depending on the asset’s use and business context.

The list of qualifying assets continues to evolve, sometimes due to case law, and particularly as sustainability becomes more important. For example, items such as solar panels, rainwater harvesting equipment, and energy-efficient heating systems are increasingly being included as plant and machinery in capital allowance claims.

Fire alarm, furnished office, lift

Items that do not typically qualify as ‘plant & machinery’ are:

Certain assets are generally not considered ‘plant & machinery’, including:

  • Rented or leased items
  • Land
  • Structural elements like bridges and roads
  • Walls and ceilings
  • Mains connection charges
  • Building components such as doors, gates, and fences
plant and machinery

The Importance of Context: The Bathtub Example

Consider a bathtub. If installed in a boardroom, it wouldn’t qualify as plant and machinery unless it served a functional business purpose in that setting. For example, in a hotel bathroom, it would qualify as it directly supports the hotel’s operations and enhances the guest experience.

This demonstrates why context matters. An asset’s eligibility is not just based on what it is but also on how and where it is used within the business. This is a key consideration in understanding the definition of plant and machinery.

A bath in a boardroom

Types of Plant & Machinery Allowances

The 3 types of plant and machinery allowance that are most often used, are first-year allowances, annual investment allowance, writing-down allowances. Let’s take a look at these in more detail…

First-Year Allowances (FYA)

First-year allowances allow businesses to claim 100% tax relief on qualifying assets in the year of purchase. This accelerates tax savings and improves cash flow.

Qualifying assets for FYA may include:

  • Electric vehicle charging points
  • Plant & machinery for gas refuelling stations
  • Certain energy-saving technologies
plant and machinery

Annual Investment Allowance (AIA)

AIA allows businesses to claim 100% tax relief on eligible plant and machinery expenditure, up to a £1 million annual limit. This means the full cost can be deducted from profits before tax. If AIA is used, the cost is added to the relevant asset pool, and the claimed amount is deducted from that pool.

Annual investment allowances (AIA)

Writing-Down Allowances (WDA)

Writing-down allowances apply when:

  • First-year allowances and AIA are not available
  • The annual threshold for first-year allowances or AIA has been exceeded
  • First-year allowances or AIA were not claimed in time

With WDA, businesses spread tax savings over several years, rather than claiming the full relief in one go. A percentage of the asset’s value is deducted each year until the cost is fully written down.

Flicking through a calendar

Asset pools for plant and machinery

Typically, plant and machinery assets are classified into two main pools:

  • Main Pool – Covers most plant and machinery items.
  • Special Rate Pool – Includes embedded fixtures like heating systems, air conditioning, and lighting.

The correct classification depends on the nature of the asset, its expected lifespan, and relevant legislation. Understanding these pools helps businesses plan their spending and optimise tax relief.

Special Rate Pool assets typically qualify for only 6% WDA per year (compared to 18% for Main Pool assets), making early identification even more important to maximise relief.

Writing-down allowances

Who can claim for plant and machinery?

Capital allowances can be claimed by:

  • Sole traders
  • Partnerships
  • LLPs
  • Companies

To qualify, the business must own the asset, and it must be used for business purposes at the end of the relevant accounting period.

Who can claim for plant and machinery?

Common Misconceptions About Plant and Machinery

Despite its importance, confusion around the term ‘plant and machinery’ is widespread. Some common misconceptions include:

  • Believing that only movable equipment qualifies – many embedded systems, like lighting or ventilation, often qualify
  • Small businesses can’t benefit – even sole traders can make claims on eligible assets
  • Thinking that once missed, relief is lost – in many cases, retrospective claims can be made, regardless of the year of expenditure

Working with a specialist can clarify eligibility and ensure no tax-saving opportunities are overlooked.

Paul Roberts sitting down with a client

Retrospective Claims and Missed Opportunities

Businesses are often unaware that they can claim capital allowances, which means they may be missing out on valuable tax relief. In many cases, if plant and machinery assets were purchased in previous years and used for business purposes, allowances can still be claimed, provided the expenditure falls within the legislation.

For example, businesses typically have up to two years from the end of the accounting period in which the expenditure occurred to amend tax returns and include missed claims. This can result in significant tax savings being recovered, even if the original purchase was made many years ago.

In commercial property transactions since 2014, this is particularly relevant as a Section 198 Election (a joint agreement between buyer and seller specifying how capital allowances are treated) needed to be prepared in most cases when the ownership of a property changed hands. However, even if no Section 198 Election was made at the time of sale, the buyer may still be able to claim allowances on qualifying embedded fixtures, sometimes dating back several years.

Missing these opportunities can result in permanent loss of tax relief, so it’s important for businesses to review past purchases, especially when acquiring commercial property. A specialist review can help uncover unclaimed allowances and ensure all available relief is utilised.

Accountant going through documents

Specialist advice for plant and machinery allowances

Plant & machinery is not a subject which is defined by law. This makes obtaining final and specific answers, when it comes to the topic, difficult. However, at CARS, our team has years of experience, knowledge, and skills that they use daily to support businesses in getting the tax relief they are eligible for.

contractual 50

Call, or email us today to find out how our team can help your business.

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