Money you spend getting a business ready to trade is not lost. HMRC lets you claim relief for qualifying costs incurred in the seven years before you begin trading, treating them as if they happened on your first day of trading. The expense must be one that would have been allowable had you already been trading. The rules apply to sole traders, partnerships and limited companies, and separate VAT rules let you recover some input VAT from before you registered.
Very few businesses open their doors on day one without having already spent money. You might buy stock, pay for a website, take professional advice, rent premises or travel to meet suppliers weeks or months before your first sale. HMRC recognises this, so the tax system does not penalise you for preparing properly. Understanding how pre trading expenditure works helps you claim everything you are entitled to and keeps your first set of accounts accurate.
What counts as a pre trading expense?
A pre trading expense is a cost you incur before your business actually starts trading, but which relates directly to that business. The gov.uk Business Income Manual sets the test clearly: the expenditure must be something that “would have been allowable if incurred after the trade had commenced”. In other words, if the same cost would have been a normal deductible expense once you were up and running, it usually qualifies before you started too.
Common examples include rent and rates on business premises, stock and raw materials, insurance, accountancy and legal fees, marketing and website costs, travel to meet clients or suppliers, and staff wages during a setup period. The everyday running costs you would expect to see in any trading business are the ones to look for. If a cost is genuinely for the business and would pass the usual allowability test, note it down.
How far back can you claim, and when is the relief given?
The rule is generous. Relief covers qualifying expenses incurred within the seven years before the day trading begins. HMRC guidance confirms the cost must be “incurred within a period of seven years prior to the commencement of the trade, profession or vocation”.
The timing of the relief matters. Qualifying pre trading expenditure is “treated as incurred on the day on which the trade, profession or vocation is first carried on”. You do not claim it in the year you actually paid the money. Instead all of it is bundled together and treated as a business expense on your first day of trading, so it enters the profit or loss calculation for your first trading period. No separate claim is needed; you simply include the total in your first accounts.
This can create or increase a loss in your opening year, which may then be relievable against other income depending on your circumstances. Keeping receipts and a simple log of what you spent, when and why is the single most useful thing you can do here.
Does this apply to companies as well as sole traders?
Yes. The relief works for both income tax and corporation tax. If you are a sole trader or in a partnership, the pre trading rules feed into your Self Assessment return through the income tax rules. If you have set up a limited company, an equivalent rule applies for corporation tax, so the company can deduct qualifying pre trading costs in its first accounting period.
The choice of structure affects other things too, from how profits are taxed to your reporting duties, so it is worth reading up on sole trader versus limited company before you commit. Whichever route you take, the underlying principle is the same: genuine setup costs that would have been allowable in trade are not wasted just because you had not yet made a sale. To be sure a specific cost qualifies, check it against the ordinary tests for allowable business expenses.
What about equipment and other capital costs?
Buying tools, machinery, computers, vans or other lasting assets before you start is treated differently from everyday running costs. These are capital items, not revenue expenses, so they do not go through the seven year pre trading rule described above. Instead they are dealt with under the capital allowances system.
The good news is that capital expenditure incurred before trading begins is generally treated as if it were incurred on your first day of trading, so you can still claim the relevant allowances, such as the Annual Investment Allowance, in your first period. If you are buying significant equipment to get going, read our guide to capital allowances so you claim the right amount in the right year.
Can you reclaim VAT spent before registering?
VAT has its own separate set of rules, and the time limits are shorter than the seven year income tax window. If you register for VAT, you can usually reclaim input VAT on some purchases made before your registration date, provided they relate to your taxable business activities.
For goods, including stock and equipment, you can go back up to four years before registration, but only where you still hold the goods, or goods made from them, at the date you register. For services, the window is much tighter: only six months before registration. These limits sit alongside the question of when you must or should register at all, which is driven by the VAT registration threshold. Keep every VAT invoice from your setup period so you can support a claim on your first return.
Getting it right first time
Pre trading relief is valuable but easy to miss, because the spending often happens before you have any accounting routine in place. Capture every cost, keep the paperwork, and separate revenue expenses from capital items and from VAT. A good accountant will make sure nothing allowable slips through and that your opening accounts are correct.
If HMRC ever questions your figures, professional fees can mount quickly. Solar Protect tax investigation insurance covers up to £100,000 of your accountant’s fees with no excess, so you can respond fully without worrying about the cost. Get a quote.
Related guides: tax deadlines for new businesses.
Reviewed by Matthew Bartlett, Director, Solar Protect. This guide is general information, not personalised tax or financial advice. Figures are correct for the 2025/26 and 2026/27 UK tax years at the time of writing.