ATED Filing Deadline for the 2026/27 Tax Year

As we are now approaching the filing deadline of 30 April 2026 for the ATED year 1 April 2026 – 31 March 2027, it is now time for companies to think about whether they will fall within the ATED regime and are required to submit an ATED return or ATED relief declaration (if a relief is available) for the 2026/27 tax year.

For the ATED year 1 April 2026 – 31 March 2027, if your company owns an interest in UK residential property with a value over £500,000 at 1 April 2022, or at the acquisition date (or build/development completion date) if this is later, then it is likely that the company will need to submit an ATED return or ATED relief declaration return (if a relief is available) for the 2026/27 ATED year (1 April 2026 – 31 March 2027) by 30 April 2026.

When to File an ATED Return or Relief Declaration

Any residential property interests held by a relevant entity at 1 April 2026 worth more than £500,000 at the valuation date of 1 April 2022 (or the acquisition date if acquired later than that) will  fall within the regime, and have to file a return or ATED relief declaration return with HM Revenue & Customs (HMRC) by 30 April in the relevant year (being 30 April 2026), or 30 days from the date of acquisition if acquired in a year (although in some exceptional cases this can be 90 days).

Next Steps / Further Information

Companies and partnerships with limited company partners should consider the valuations at 1 April 2022 of any residential properties held, and consider arranging a formal valuation of any residential properties owned by a relevant entity where you consider the value at 1 April 2022 may be sufficiently close to the £500,000 threshold (or be close the upper limit of a valuation band), if this has not been considered  since April 2023 (when the new valuation date was introduced).

The next valuation date for ATED will be 1 April 2027 (applying to the 2028/29 (year-ended 31 March 2029) ATED year).

You need to know the value of your property to find out if it falls within the scope of ATED. 

You can work out the value yourself or you can use a professional valuer. You do not legally need a RICS valuation to submit an ATED return and therefore you are permitted to self-assess or estimate the value. However, obtaining a formal valuation using a RICS Registered Valuer is highly recommended if you estimate that the property value is close to one of the ATED thresholds (£500,000, £1m, £2m, etc.), in order to evidence that “reasonable care” has been taken (being important to argue against penalties raised by HM Revenue & Customs).

Valuations of the owned interest must be on an open-market willing buyer, willing seller basis and be a specific amount. If you do not own the unencumbered freehold interest the valuation may not necessarily be a vacant possession valuation.

It’s important to get the property valuation as accurate as possible, as if you are in ATED regime HMRC may decide to open an enquiry into your ATED return and look at the valuation of your property and appropriate banding for your property.

Further guidance regarding the valuation for ATED purposes can be found here.