What special loss relief is available when I permanently stop trading as a sole trader?

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Ceasing a trade often coincides with a difficult final period of declining profits or an outright loss, and terminal loss relief exists specifically to give a more generous carry-back than the standard rules allow, recognising that a business that has stopped trading has no future profits left to carry an ordinary loss forward against. **What counts as the terminal loss** The terminal loss is calculated using a specific method covering the loss arising in the final 12 months of trading up to the date the trade ceases (which may combine parts of two tax years if the business does not stop exactly at a tax year end), plus certain unused capital allowances -- HMRC has detailed rules for apportioning results between tax years where cessation does not align with 5 April. **How the three-year carry-back works** Unlike the standard one-year trading loss carry-back, terminal loss relief allows the loss to be carried back against profits of the SAME trade in the three tax years immediately before the year of cessation, applied against the most recent of those three years first, then earlier years if any loss remains unrelieved -- this can only be set against profits of the same trade, not against other income such as employment earnings or savings interest. **Worked example** A sole trader decides to close their business after 20 years. In the final tax year of trading they make a loss of £30,000, which combined with unused capital allowances gives a terminal loss of £34,000. In the previous three tax years, their trading profits were £10,000, £12,000, and £14,000 respectively. The terminal loss is set first against the most recent year's £14,000 profit (fully wiping it out), then against the next most recent year's £12,000 profit, then £8,000 of the earliest year's £10,000 profit -- generating tax refunds across all three years for the profit now relieved by the loss. **Why this matters more than ordinary carry-forward** Without terminal loss relief, a loss made in a business's final year would ordinarily need to be carried forward against future profits of the same trade -- but if the trade has permanently ceased, there are no future profits to carry it forward against, so without the special three-year carry-back the loss could effectively go to waste. **Claiming the relief** A claim for terminal loss relief must generally be made within four years of the end of the tax year in which the trade ceased, and it is made through Self Assessment, adjusting the tax calculations for the earlier years affected -- professional advice is often worthwhile given the apportionment calculations involved, especially where the cessation date falls partway through a tax year. **Interaction with capital allowances on cessation** When a trade ceases, any remaining unrelieved capital allowances pool typically gives rise to a balancing allowance or balancing charge, which feeds into the terminal loss (or terminal profit) calculation for the final period -- this is a further reason the terminal period calculation can differ meaningfully from a simple final-year profit and loss figure. **Practical tip** If you are planning to permanently close a sole trader business and expect a loss in the final period, get the terminal loss calculation right (including capital allowances) and claim within the four-year time limit, since this relief can recover tax paid across the three years before you stopped trading that an ordinary carry-forward claim would never reach.

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