Have you underclaimed your expenses?
In 2022/23, HMRC sent a nudge letter to taxpayers that included a statement saying that upgrading a boiler wouldn’t be a deductible expense for tax purposes, i.e. as a deduction from rental income. It is now writing to individuals admitting that this was wrong. What action do you need to take?
The initial letter was a prompt to check property letting expenses that had been claimed on the 2021/22 tax return. It contained the statement that “upgrading a central heating boiler from an older, less efficient model’ is an example of an expense you can’t claim tax relief for”. Essentially, the implication is that an improvement is not a repair, and so is a capital expense. HMRC has now owned up to the mistake, and has confirmed that such an expense would generally be accepted as a repair.
If you haven’t claimed for the cost of a replacement boiler, you could be owed a tax refund. Check your returns and if you have underclaimed your expenses, take action accordingly. If it is for 2022/23, you can simply amend the return. However, if it’s your 2021/22 return that is affected, you should contact the specialist team by email at responseteam5@hmrc.gov.uk.
Related Topics
-
Who can't yet sign up for MTD IT?
Making Tax Digital for Income Tax (MTD IT) becomes mandatory from April 2026 for sole traders and landlords with qualifying income over £50,000. However, HMRC’s current guidance makes clear that not everyone can sign up yet. If you are preparing early, are you actually eligible?
-
MONTHLY FOCUS - PROFIT EXTRACTION PLANNING AHEAD OF 5 APRIL 2026
The end of the 2025/26 tax year is fast approaching. In this Monthly Focus we look at ways to get money out of your company tax efficiently, and consider whether limited is still the way to go for your business.
-
HMRC updates advisory fuel rates from 1 March 2026
HMRC has published the latest advisory fuel and electric rates (AFRs) for company cars, effective from 1 March 2026. Several rates have changed since the previous quarter. What should employers be aware of?

This website uses both its own and third-party cookies to analyze our services and navigation on our website in order to improve its contents (analytical purposes: measure visits and sources of web traffic). The legal basis is the consent of the user, except in the case of basic cookies, which are essential to navigate this website.