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Equipment and Technology Expenses: Capital Allowances vs Revenue Expenses

Understand the difference between capital allowances and revenue expenses for equipment and technology in the UK, including AIA, Full Expensing, and how accounting software handles them.

9 min read Updated April 2026🇬🇧 UK-specific
Priya Sharma
Priya Sharma·
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Introduction

For any business in the UK, understanding how to properly account for equipment and technology expenses is crucial for accurate financial reporting and maximising tax efficiency. The distinction between capital allowances and revenue expenses can significantly impact your tax bill. This guide will walk you through the key concepts, HMRC rules for 2026/27, and how modern accounting software can simplify the process.

TL;DR: Key Takeaways

  • Capital expenditure is for assets with lasting value (e.g., computers, machinery) and is relieved through capital allowances.
  • Revenue expenditure is for day-to-day running costs (e.g., software subscriptions, repairs) and is fully deductible against profits in the year incurred.
  • The Annual Investment Allowance (AIA) allows 100% relief on most plant and machinery up to £1,000,000 per year.
  • Full Expensing offers 100% first-year relief for companies on qualifying new main-rate plant and machinery, with no monetary limit.

Capital Expenditure vs. Revenue Expenditure

The fundamental difference lies in the nature of the expense. Capital expenditure (CapEx) creates an asset that will be used by the business for more than one accounting period, providing a lasting benefit. Examples include purchasing a new laptop, office furniture, or machinery. These items are not fully expensed in the year of purchase but are instead depreciated over their useful life, and tax relief is claimed through capital allowances.

Revenue expenditure (OpEx), on the other hand, relates to the day-to-day running costs of the business. These are typically consumed within one accounting period and are fully deductible against profits in the year they are incurred. Examples include software subscriptions, printer ink, stationery, or minor repairs to existing equipment.

FeatureCapital ExpenditureRevenue Expenditure
PurposeAcquire or improve long-term assetsDay-to-day running costs
Benefit PeriodMore than one accounting periodWithin one accounting period
Accounting TreatmentCapitalised as an asset, depreciatedExpensed in the P&L statement
Tax ReliefCapital Allowances (AIA, Full Expensing, WDA)Fully deductible against profits
Warning: Misclassifying expenditure can lead to incorrect tax calculations and potential penalties from HMRC.

Understanding Capital Allowances (2026/27)

Capital allowances are the UK's equivalent of depreciation for tax purposes. Instead of deducting the full cost of an asset immediately, businesses claim a portion of its value against their taxable profits each year. However, several schemes allow for accelerated relief, significantly reducing your tax liability in the year of purchase.

Annual Investment Allowance (AIA)

The AIA allows businesses to deduct the full value of qualifying plant and machinery from their profits before tax, up to a certain annual limit. For the 2026/27 tax year, the AIA limit remains generous at £1,000,000. This means most small and medium-sized businesses can claim 100% tax relief on their equipment purchases in the year they buy them.

  • What qualifies? Most tangible capital assets used in your business, such as computers, vans, lorries, machinery, tools, and office furniture.
  • What doesn't qualify? Cars (though some commercial vehicles do), land, buildings, and items bought for leasing out.

Full Expensing (for Companies)

Introduced to stimulate investment, Full Expensing allows companies to claim 100% capital allowances on qualifying new main-rate plant and machinery in the year of purchase. Unlike AIA, there is no monetary limit to Full Expensing, making it particularly beneficial for larger investments. For special-rate (including long-life) assets, a 50% first-year allowance is available.

  • Eligibility: Only available to companies subject to Corporation Tax.
  • Qualifying assets: New (not second-hand) main-rate plant and machinery.
  • Key benefit: Significant cash flow advantage by reducing taxable profits immediately.

Writing Down Allowances (WDA)

For expenditure that doesn't qualify for AIA or Full Expensing, or exceeds their limits, businesses claim Writing Down Allowances. These are claimed annually on the reducing balance of the asset's value.

From April 2026, the main rate of WDA will be 14% per year, applied to assets in the 'main pool'. A lower rate of 6% applies to assets in the 'special rate pool', which includes integral features of buildings and long-life assets.

New 40% First Year Allowance (FYA)

From 1 January 2026, a new 40% First Year Allowance will be introduced for certain expenditure on plant and machinery allocated to the main pool. This provides an additional accelerated relief option for businesses.

Example: Capital Allowance Comparison

Consider a company purchasing £1,000,000 of qualifying main-rate plant and machinery in 2026/27:

AIAFull ExpensingWDA Main PoolWDA Special Pool02500005000007500001000000

Note: WDA figures are illustrative for the first year on a £1m asset if AIA/Full Expensing were not used.

Specific Equipment & Technology Considerations

Computers and Software

Purchasing computers, laptops, and servers is generally considered capital expenditure, qualifying for capital allowances. The treatment of software, however, can be more nuanced:

  • Subscription-based software (SaaS): Monthly or annual subscriptions (e.g., Microsoft 365, Adobe Creative Cloud, Xero) are typically revenue expenses, fully deductible in the year they are paid.
  • Perpetual software licenses: If you purchase a software license outright that grants you indefinite use, this is usually treated as capital expenditure and qualifies for capital allowances.
  • Bespoke software development: Costs for developing custom software for your business can also be capitalised and qualify for capital allowances, depending on the nature of the development.

Mobile Phones and Communication Devices

Mobile phones, tablets, and other communication devices purchased for business use are generally capital expenditure and qualify for capital allowances. The monthly contract costs (line rental, calls, data) are revenue expenses.

Printers, Scanners, and Office Furniture

These items are classic examples of plant and machinery. When purchased for business use, they are capital expenditure and will qualify for AIA or WDA. Small, inexpensive items might sometimes be expensed as revenue if they fall below a certain materiality threshold set by the business, but strictly speaking, they are capital items.

When to Capitalise vs. Expense: A Practical Guide

Deciding whether to capitalise or expense an item isn't always straightforward. Here's a simplified approach:

  1. Does it provide a lasting benefit? If the item will be used for more than 12 months and contributes to the long-term earning capacity of the business, it's likely capital expenditure.
  2. What's the cost? While not a strict rule, very low-value items (e.g., a £20 mouse) are often expensed for practicality, even if technically capital. Businesses often set a 'capitalisation threshold' (e.g., £500 or £1,000).
  3. Is it a repair or an improvement? A repair (e.g., fixing a broken screen) is usually revenue. An improvement (e.g., upgrading RAM to significantly enhance performance) might be capital.
Tip: Always consult with a qualified accountant if you are unsure about the classification of a significant expense.

How Accounting Software Handles Capital vs. Revenue

Modern accounting software is designed to help businesses correctly categorise and track their expenses, simplifying compliance with HMRC rules. Here's how they typically assist:

  • Chart of Accounts: Software provides a structured chart of accounts with distinct categories for capital assets (e.g., 'Computer Equipment', 'Office Furniture') and various revenue expenses (e.g., 'Software Subscriptions', 'Repairs & Maintenance').
  • Asset Register: For capital items, good software will include an asset register. This allows you to record details of each asset, its purchase date, cost, and automatically calculate depreciation (for accounting purposes) and track capital allowances (for tax purposes).
  • Automated Depreciation: While depreciation is an accounting concept (not directly tax-deductible), software automates its calculation, ensuring your financial statements accurately reflect the asset's reducing value.
  • Reporting: The software generates reports that clearly separate capital expenditure from revenue expenditure, making it easier to prepare your tax returns and claim the correct allowances.
Software FeatureBenefit for Capital/Revenue
Categorisation RulesGuides users to allocate expenses correctly to CapEx or OpEx accounts.
Asset RegisterTracks individual capital assets, their value, and depreciation schedules.
Automated ReportingGenerates P&L and Balance Sheet, separating revenue expenses from capital assets.
Integration with Tax ToolsSome advanced software can help calculate capital allowances directly for tax filing.

Conclusion

Mastering the distinction between capital and revenue expenditure for equipment and technology is fundamental to sound financial management and tax compliance in the UK. By leveraging schemes like the Annual Investment Allowance and Full Expensing, businesses can significantly reduce their tax burden. Utilising robust accounting software further streamlines this process, ensuring accuracy and freeing up valuable time.

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