ATED returns: deadlines, valuation bands and the relief declaration nobody files

Your company owns a residential property worth more than £500,000. It is let to a tenant on a commercial basis, so there is no Annual Tax on Enveloped Dwellings to pay. That means there is nothing to file, doesn’t it?

No. And that assumption is the single most expensive mistake we see in this area, because the penalties run whether or not there was ever any tax due.

What is the Annual Tax on Enveloped Dwellings?

ATED is an annual charge on UK residential property worth more than £500,000 held by a company, a partnership with a corporate member, or a collective investment scheme.

It was introduced to discourage holding homes inside companies. In practice most properties caught by it qualify for a relief, which is precisely why so many owners assume it does not apply to them.

What are the ATED valuation bands for 2026/27?

The amounts rise each year with inflation.

Which valuation date applies?

This is where properties drift into the wrong band without anyone noticing.

For the 2026/27 period you use the value at 1 April 2022, or the date you acquired the property if that was later. Properties are revalued every five years.

Warning! The next revaluation date is 1 April 2027, first used for the 2028/29 chargeable period. If your property was valued near a band boundary in 2022, there is a reasonable chance it moves up a band at the next revaluation. A property valued at £980,000 in 2022 that is worth £1.1m in 2027 moves from £4,600 to £9,450 a year. That is worth modelling now rather than discovering in 2028.

What is a relief declaration return?

It is a simplified ATED return you file where a relief reduces the charge to nil.

Relief is not automatic. It has to be claimed, and it is claimed on a return. No return, no relief, and the charge stands as though the relief never existed.

One relief declaration return covers any number of properties claiming the same relief. You do not list addresses and you do not give values. But you need a separate return for each different relief you are claiming, and if any property in the portfolio does have an actual liability, that one needs a full return as well.

The reliefs claimable this way include:

• Property rental business
• Property developers
• Property traders
• Dwellings opened to the public
• Financial institutions acquiring dwellings through lending
• Home reversion and equity release plans
• Dwellings occupied by employees or partners
• Farmhouses, and providers of social housing

The first one, property rental business, is the one that covers most ordinary buy to let structures, and it is the one most often left unclaimed.

What are the deadlines?

Both the return and any payment are due by 30 April within the chargeable period, which is unusual. Most taxes are paid in arrears. ATED is paid at the start.

For a property held on 1 April 2026, the return and payment were due by 30 April 2026.

Two variations:

• A property that comes into scope during the year: 30 days from acquisition
• A newly built dwelling: 90 days

What are the penalties for filing late?

They accumulate quickly, and they apply even where the relief means no tax was ever payable.

• £100 immediately
• From 3 months late, £10 a day for up to 90 days, a maximum of £900
• At 6 months, the greater of 5% of the tax or £300
• At 12 months, a further greater of 5% of the tax or £300

Where tax is actually due, late payment penalties add 5% at 31 days, another 5% at five months after that, and another 5% at eleven months, plus interest.

Example. A company owns three let flats, each worth around £700,000, held since 2019. It qualifies in full for property rental business relief, so the ATED payable is nil. Nobody files, for three consecutive years, because there is no tax. The penalty exposure is £1,300 per year on the fixed and daily penalties alone, and HMRC can pursue every unfiled year. Around £3,900 of penalties, on a nil liability, purely for not filing a form that would have taken minutes.

We have seen exactly this, and we have had those penalties cancelled. But it is a great deal easier to file the return.

What should you do next?

Three questions to answer before next April.

Does any company you control hold UK residential property worth over £500,000? If yes, ATED is in scope whether or not tax is payable.

Have relief declaration returns been filed for every year? If not, get the historic position regularised. Coming forward voluntarily is treated very differently from being found.

Where did your 1 April 2022 valuation sit relative to a band boundary? If it was close, start thinking about 1 April 2027 now.

ATED is one of those areas where a generic compliance service simply does not look, because there is no tax to compute and nothing prompts the question. We look, because we review the tax position alongside the accounts rather than after them, and because our team has seen how HMRC approaches unfiled returns from the inside.

If your company holds residential property, book a conversation with a Chartered Tax Adviser. There is more on our ATED Returns page, and a real case where three years of returns were filed and £4,800 of penalties cancelled in our tax saving case studies.