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Experlu guide
How trading losses can be treated differently for sole traders and limited companies, and why the choice of relief can affect the tax outcome.
A business loss does not automatically create the same tax relief for every business. The available claim depends on who made the loss and the conditions that apply.
Start with the legal owner of the loss. This is the biggest difference between the two routes.
The loss belongs to you personally as the trader.
The loss belongs to the company.
Open the areas relevant to your situation. Loss claims can be valuable, but the conditions and deadlines matter.
The tax loss is not always the same as the loss shown in bookkeeping software or statutory accounts. Tax adjustments can change the result.
For companies, HMRC specifically calculates Corporation Tax trading losses after the relevant tax adjustments.
HMRC provides several possible routes. Depending on the conditions, a trading loss may be claimed against income or potentially chargeable gains, carried forward against future profits of the same trade, or used under early-trade or terminal-loss provisions.
Restrictions can apply, including limits on certain Income Tax reliefs and restrictions for non-commercial trades and some other cases.
A company can generally offset a trading loss against other gains or profits of the business in the same accounting period. It can also choose to carry the loss back where the rules allow, or carry it forward to a later accounting period.
Large carried-forward losses can be subject to additional restrictions. The treatment should be checked for the company concerned.
Not necessarily. The most useful claim can depend on tax rates, other income or profits, the need for a tax repayment, future expectations and claim deadlines.
Using a loss in one period can mean it is no longer available in another. Model the alternatives before making the claim.
A sole trader and a limited company are different taxpayers. A trading loss does not simply transfer to the company when you incorporate.
HMRC does provide pre-incorporation loss relief in certain cases where a trade is transferred to a company wholly or mainly in exchange for shares and the detailed conditions are met. This can allow carried-forward losses to be relieved against qualifying income from the company.
No. Trading losses and capital losses follow different rules. A loss on the disposal of an asset should not automatically be treated as a trading loss.
This guide focuses on trading losses. Capital losses should be considered separately.
Keep the records supporting the loss calculation, the tax adjustments made, the claim chosen and how much loss remains available. Good records make future claims and HMRC queries much easier to manage.
| Question | Sole trader | Limited company |
|---|---|---|
| Who owns the loss? | The individual trader | The company |
| Can it reduce future trading profits? | Potentially, against profits of the same trade | Potentially, against future company profits under the Corporation Tax rules |
| Can it sometimes be carried back? | Yes, where the relevant relief conditions are met | Yes, where the Corporation Tax carry-back rules apply |
| Can a company trading loss reduce the shareholder's salary directly? | Not applicable | Normally no |
| Is relief automatic? | No | No |
Get the loss position reviewed before making a claim or changing your business structure.