PIM4482 | Property allowance: contents: examples: When it can be beneficial for individuals to elect for full relief not to apply
From HM Revenue & Customs · Property Income Manual
In some situations it may be more beneficial for an individual to make an election for Full Relief not to apply by completing a tax return to report their income and expenses, (guidance is included in the SA Return Notes). This is likely to be the case where the expenses of a property business exceed receipts resulting in a significant loss . These losses could be used against future profits.
Suppose Xavier has the following results for two tax years:
2017-18
Receipts of UK property business: £1,000
Expenses of UK property business: £5,000
Therefore, UK property business losses for 2017-18: £4,000
2018-19
Receipts of UK property business: £8,000
Expenses of UK property business: £4,000
Therefore, UK property business profit of £4,000
If no election was made to disapply Full Relief for 2017-18, Xavier would have paid no Income Tax on his UK property business for that year as £1,000 of receipts would not be brought into account. However, £5,000 of expenses would also not be brought into account and the profit of the business would be treated as nil. In 2018-19, Xavier made profits of £4,000. He would then pay Income Tax on those profits of £4,000 (assuming no election for Partial Relief was made).
If however, Xavier had made an election to disapply Full Relief for 2017-18, he would have accrued losses of £4,000 to carry forward. He would then have been able to set these losses against his UK property business profits in the 2018-19 tax year - reducing them to nil.