Home Office Equipment: Capitalise or Expense? A UK Tax Guide

Why the Capitalise vs Expense Question Matters

When you buy equipment for your home office, HMRC does not automatically let you deduct the full cost in one go. The treatment depends on whether the item is classed as a capital asset or a day-to-day revenue expense. Getting this right means you claim the correct relief at the correct time and avoid errors on your Self Assessment return.

What Counts as a Capital Asset?

An item is generally capital if it has a useful life of more than two years and is used to run your business rather than consumed by it. Typical home office capital assets include:

• Laptops, desktop computers, and tablets
• Monitors and docking stations
• Office desks and chairs
• Printers and scanners
• External hard drives and networking equipment

These are not written off in a single line on your profit and loss account in the traditional sense. Instead, they qualify for capital allowances.

Annual Investment Allowance: Your Most Powerful Tool

Most sole traders and freelancers can use the Annual Investment Allowance (AIA) to deduct 100% of qualifying plant and machinery costs in the year of purchase. The AIA limit is £1,000,000 per year, so for the vast majority of home workers, every piece of equipment you buy will be fully deductible in year one through this route.

This means in practice, the distinction between capitalising and expensing often disappears for smaller purchases — you still get full relief immediately. However, you must record the item as a capital purchase on your tax return, not as a general business expense, or HMRC may query your return.

What About the 100% First-Year Allowance?

New and unused equipment that qualifies as a main pool asset — which covers most standard office equipment — also benefits from the 100% First-Year Allowance under the Full Expensing rules introduced in April 2023 and made permanent from April 2024. For sole traders, AIA effectively achieves the same result, so this is more relevant to limited company directors.

When You Cannot Claim Full Relief Immediately

There are situations where you cannot deduct the full cost at once:

• Mixed personal and business use: If you use a laptop 60% for work and 40% personally, you can only claim 60% of the cost through capital allowances.
• Cars: These follow separate rules with restricted writing-down allowances based on CO2 emissions and are never covered by AIA.
• Assets bought before you started trading: You can still claim, but only on the business-use proportion at the time you began trading.

What Can You Expense Directly?

Genuine revenue expenses — items used up in the course of your business — can be deducted in full against your profits without going through capital allowances. For home office workers, these typically include:

• Printer ink and paper
• Software subscriptions (monthly or annual SaaS tools)
• Replacement cables and small accessories under approximately £100
• Office stationery and postage

HMRC does not set a strict monetary threshold between capital and revenue, but items costing less than £100 and consumed quickly are generally treated as revenue expenses by most sole traders without challenge.

Keeping Records HMRC Will Accept

Whether you capitalise or expense, keep your receipts and note the business purpose of each purchase. For capital items, record the date of purchase, cost, and estimated business-use percentage. Cloud accounting tools like those integrated with EasyTax make this straightforward and ensure your capital allowances pool is calculated correctly each tax year.

The Bottom Line

For most freelancers and sole traders, the AIA means you get the same immediate 100% tax relief whether an item is technically capital or revenue. The key is recording it correctly on your return. Capital assets go through the capital allowances section; consumables go through expenses. Both reduce your taxable profit — just via different boxes on your Self Assessment form.