Claiming Tools and Equipment as Business Expenses
How to claim the cost of tools, equipment, and machinery against your tax bill. Covers the Annual Investment Allowance, capital allowances, and the difference between revenue and capital expenses for tradespeople.
Revenue Expenses vs Capital Expenses for Tools
Understanding the difference between revenue expenses and capital expenses is essential for claiming tools correctly on your tax return. Revenue expenses are day-to-day costs that are deducted in full in the year you incur them. Capital expenses relate to assets with lasting value and are handled differently through capital allowances.\n\nFor tradespeople, most small tools and consumables are revenue expenses. Drill bits, saw blades, screwdriver sets, pliers, tape measures, pencils, cable clips, and similar items that need regular replacement are deducted as normal business expenses in the year of purchase. There is no strict monetary threshold, but items under a few hundred pounds with a short useful life are generally treated as revenue.\n\nLarger tools and equipment that will last several years are capital assets. Power tools like SDS drills, circular saws, and pipe-freezing machines, diagnostic equipment like thermal cameras and multifunction testers, and heavy equipment like scaffolding, compressors, and generators are all capital assets. Their cost is claimed through capital allowances rather than as a direct expense.\n\nThe distinction matters for how the cost appears on your SA103F. Revenue expenses go in the relevant expense boxes (such as cost of goods or other expenses), while capital assets go in the capital allowances section. Getting this categorisation wrong does not change your total tax bill if you claim through the Annual Investment Allowance, but it can trigger HMRC queries if your expense figures look unusual.
The Annual Investment Allowance Explained
The Annual Investment Allowance lets you deduct the full cost of qualifying plant and machinery from your taxable profits in the year of purchase, up to a limit of one million pounds per year. For sole trader tradespeople, this limit is far more than you would ever spend, so in practice you can claim 100 percent of any qualifying asset cost immediately.\n\nQualifying assets include tools and power tools, vehicles (with some restrictions for cars), workshop equipment, computers and tablets used for business, office furniture, storage containers and racking, and any other tangible assets used in your trade. The asset must be used for business purposes, and if it has mixed personal and business use, only the business proportion can be claimed.\n\nTo claim AIA, you enter the total qualifying expenditure in Box 31 of the SA103F. If you bought a van for 25,000 pounds, a new set of power tools for 2,000 pounds, and a laptop for 800 pounds, your total AIA claim would be 27,800 pounds (assuming 100 percent business use). This amount is deducted from your profit, reducing your income tax and National Insurance.\n\nThe AIA is available per business, not per asset. If you run a single sole trader business, you have one AIA limit of one million pounds. If you are in a partnership, the partnership has one AIA limit shared between the partners. The full million-pound limit is available regardless of when in the year you make the purchase, with no apportionment for part-year ownership.
Claiming for Vehicles
Vehicles used for business are eligible for capital allowances, but the rules differ depending on whether the vehicle is a van, a car, or a motorcycle. Vans and motorcycles qualify for the full AIA, meaning you can deduct the entire purchase cost in the year of acquisition. Cars have separate rules based on their CO2 emissions.\n\nFor sole trader tradespeople, the most common vehicle purchase is a van. A van is classified as a vehicle designed primarily for carrying goods and weighing no more than 3,500 kilograms. Panel vans, pickup trucks, and tipper vans all qualify. The full cost of a qualifying van can be claimed through AIA in the year of purchase, subject to the usual business-use restriction.\n\nIf you use a car for business, the capital allowance depends on its CO2 emissions. Electric cars with zero emissions qualify for 100 percent first-year allowances, meaning full deduction in the year of purchase. Cars with emissions of 50 grams per kilometre or less go into the main rate pool at 18 percent writing-down allowance per year. Cars with higher emissions go into the special rate pool at 6 percent per year. These writing-down allowances are much less generous than AIA, which is why many tradespeople choose vans over cars.\n\nRemember that if you use the simplified mileage rate for a vehicle, you cannot also claim capital allowances on its purchase price. The mileage rate is intended to cover all vehicle costs including depreciation. Capital allowances on the purchase price are only available if you use the actual cost method for claiming vehicle expenses. This is a significant factor in the mileage rate versus actual costs decision.
Disposing of Business Assets
When you sell, scrap, or stop using a business asset, you need to account for the disposal in your capital allowances calculation. This is done through a balancing allowance or a balancing charge, depending on whether you sell the asset for more or less than its tax written-down value.\n\nIf you sell an asset for less than its written-down value (the original cost minus capital allowances already claimed), you can claim a balancing allowance for the difference. This gives you an additional deduction. For example, if you bought a van for 20,000 pounds, claimed AIA of 20,000 pounds (written-down value now zero), and later sell it for 5,000 pounds, you have a balancing charge of 5,000 pounds that is added back to your profits.\n\nBalancing charges arise when the disposal proceeds exceed the written-down value. If you claimed the full AIA on a tool that cost 3,000 pounds and later sell it for 500 pounds, the 500 pounds is a balancing charge added to your taxable income. This effectively claws back some of the tax relief you received, reflecting the fact that the asset retained some value.\n\nFor assets with mixed business and personal use, the balancing charge or allowance is restricted to the business proportion. If your van was 80 percent business use, only 80 percent of the disposal proceeds are brought into the calculation. TradeTally tracks the purchase cost, claimed allowances, and written-down value of each business asset, making disposal calculations straightforward.
Practical Tips for Tradespeople
Timing your tool and equipment purchases can optimise your tax position. If you are approaching the end of the tax year and have had a profitable year, bringing forward a planned tool purchase to before 5 April means you can claim the AIA in the current year, immediately reducing your tax bill. Deferring the purchase to after 5 April pushes the deduction into the following year.\n\nKeep a separate record of every asset you claim through capital allowances, including the date of purchase, cost, supplier, and a description of the asset. This asset register is essential for tracking written-down values and calculating balancing charges on disposal. TradeTally maintains an asset register automatically for any expense you mark as a capital purchase.\n\nIf you buy tools or equipment on hire purchase or finance, you can claim AIA on the full cash price of the asset in the year of purchase, even though you are paying in instalments. The finance charges (interest payments) are claimed separately as a revenue expense in the period they are paid. This means you get the full tax benefit of AIA upfront while spreading the actual cash cost over the finance term.\n\nSecond-hand tools and equipment are eligible for capital allowances just like new ones. If you buy a used generator for 1,500 pounds, you can claim AIA on the full 1,500 pounds. The asset does not need to be new to qualify. Keep the purchase receipt or invoice as evidence of the cost and the seller's identity.
TradeTally makes all of this easier
Invoicing, expense tracking, receipt scanning, and SA103F export — from £19/month.
Start Free Trial