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October 28, 2026
What the Capital Gains Tax Reprieve Means for Prime Central London Owners
Few subjects have caused more anxiety among property owners this year than the prospect of a sharp rise in capital gains tax.
- Prime Central London
- Buying

October 13, 2026
That rhythm is changing. Making Tax Digital for Income Tax began its phased introduction in April 2026, and over the next two years it will move steadily down the income scale until it covers the majority of individual landlords in the country.
In Prime Central London, where rents are among the highest anywhere in the UK, the practical effect is that most private landlords who own property in their own name will be caught sooner rather than later. It is worth understanding now what the rules ask for, who they apply to, and how to prepare without letting the paperwork get in the way of running a well-let property.
Under HMRC's published timetable, the scheme applies to individuals whose qualifying income passes a set threshold, and that threshold falls each year. From April 2026, it applied to those with qualifying income above £50,000, assessed on the 2024/25 tax year. From April 2027 the figure drops to £30,000, based on income in 2025/26, and from April 2028 it falls again to £20,000.
The detail that catches many people out is that the test is based on gross income, not profit. It is the rent received before mortgage interest, service charges, management fees, repairs and other costs are deducted. Any self-employed income is added to the total as well. A landlord whose property produces a healthy rent but a modest profit once expenses are paid can still find themselves comfortably inside the rules.
The arithmetic in Prime Central London is simple. A one-bedroom flat in South Kensington or Marylebone let at around £600 a week brings in more than £31,000 a year in gross rent. A two-bedroom apartment in Knightsbridge or Chelsea can easily achieve £900 a week or more, which is close to £47,000 a year. A family house in Kensington may generate several times that figure.
In other words, a single, well-located property is often enough to cross the 2027 threshold on its own. Landlords with two or three homes in central London, or a larger house let to a corporate tenant, are very likely to be in scope already. For those who own jointly with a spouse or partner, it is each person's share of the income that counts, which can change the picture, but it is a calculation worth making carefully rather than assuming.
Making Tax Digital does not change how much tax is due. It changes how records are kept and how often information reaches HM Revenue & Customs. Landlords within the rules need to keep their income and expense records digitally, using software that is compatible with HMRC's systems, and submit a short summary every quarter. The annual tax return does not disappear either, and still needs to be completed by the usual 31 January deadline, so the quarterly updates sit alongside it rather than replacing it.
For some owners this will be a minor adjustment, particularly where an accountant already handles the books. For others, especially those who have relied on a folder of paper invoices and a once-a-year conversation with their adviser, it represents a real change in habit. Rent, service charges, ground rent, insurance, agency fees, repairs and the occasional larger refurbishment all need to be recorded as they happen rather than reconstructed months later.
Not every landlord is affected. Property held through a limited company falls outside Making Tax Digital for Income Tax, because companies pay corporation tax under a separate regime. Overseas landlords without a UK National Insurance number are also currently outside the scope of the rules, which is relevant in a market where a significant share of owners live abroad.
That said, many international owners do hold a National Insurance number from time spent working in the UK, and anyone unsure of their position should check rather than assume. The rules are being introduced in stages, and further changes over the coming years cannot be ruled out.
It would be easy to view all of this simply as more administration, and there is no denying it adds a task to the landlord's calendar. Yet there is a quieter benefit. Owners who see their income and costs every quarter tend to have a much clearer view of how their property is performing. Void periods, rising service charges and maintenance costs become visible earlier, which makes it easier to decide when to review the rent, when to invest in the property and when it might be time to reassess the investment altogether.
This is also where a well-organised letting and management arrangement earns its keep. Clear monthly statements that set out rent received, fees and works carried out make digital record keeping far simpler, whether the landlord files their own updates or passes everything to an accountant. Tidy, consistent paperwork also helps when it comes to refinancing or eventually selling the property.
For landlords likely to be caught in April 2027, the sensible step is to act this tax year. That means confirming whether gross income is likely to exceed £30,000, speaking to an accountant about the software they recommend, and making sure rental income and expenses are already being captured in a format that will transfer easily. Leaving it until the first quarterly deadline is due rarely makes for a smooth start.
None of this changes the fundamentals of letting in Prime Central London. Good properties in the right locations continue to attract strong tenant interest, and well-managed homes still outperform. Making Tax Digital simply asks landlords to keep a closer eye on the numbers, which, for a serious long-term investment, is no bad thing.
This article provides general information and is not tax advice. Landlords should take advice from a qualified accountant on their own circumstances.
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