The company that owns your London flat has a bill of its own

Figures relate to tax year 2025-26 (UK) · 2025 (US)

At some point an adviser suggested holding the London flat through a company. It sounded sensible, somebody did the paperwork, and the arrangement has sat quietly ever since.

Britain introduced an annual charge aimed squarely at that structure. The enveloped dwellings rules bill the company every year simply for owning a home above a value threshold, and they ask for a return even when a relief removes the tax.

Key takeaways

• The enveloped dwellings charge applies where a company owns UK residential property above £500,000.
• It is an annual amount banded by the value of the property.
• Reliefs exist, including for genuine letting to unconnected tenants.
• A relief still requires a return, filed by 30 April each year.
• An American owner of that company has separate annual US reporting.
• Unwrapping the structure carries its own stamp duty and gains cost.

What is the enveloped dwellings charge?

It is an annual British tax on companies and certain partnerships that own residential property in the United Kingdom. According to HMRC guidance, it bites where a single dwelling is worth more than £500,000 at the relevant valuation date.

The amount rises in bands as the property value rises.

It sits alongside the ordinary taxes on rent and gains rather than replacing them.

Who does it catch?

Companies, partnerships with a corporate member, and collective investment schemes. The country of incorporation makes no difference, so a Delaware company owning a Kensington flat falls inside the enveloped dwellings rules exactly as a British one would.

Individuals owning in their own name fall outside it entirely.

So the structure creates the charge rather than the property.

What reliefs are available?

Several, and most owners qualify for one. The widest covers property run as a genuine letting business to tenants unconnected with the owner. Property developers, traders and dwellings open to the public have their own reliefs.

The relief removes the tax but not the filing obligation.

Claim the right one by name. A wrong relief code invites a correction notice.

That distinction catches more people than the charge itself.

A worked example

The figures below are illustrative and use round numbers to show the mechanics.

David is American and owns a £1.4 million flat in London through a company he set up in 2015. His daughter lives in it rent free while she studies.

Because a connected person occupies the property, the letting relief does not apply. The company owes the enveloped dwellings charge for the band covering that value, every year.

Had he let it to an unconnected tenant at a market rent, a relief would have removed the charge. He would still have had to file a return claiming it.

When is the return due?

By 30 April for the year that began on 1 April, which means the return goes in at the start of the period rather than after it. That is unusual and it catches people used to filing in arrears.

A newly acquired property has a shorter deadline of its own.

Payment falls due on the same date as the return itself.

Diarise 30 April separately from every other tax date you keep.

Charge or relief, the filing still applies

What does America make of the structure?

It sees an American person owning a foreign company, which brings its own annual reporting regardless of what the company does. That obligation exists whether the property is let, empty or occupied.

The British charge gives no American deduction or credit, because it is not an income tax.

Our guide to Form 5471 categories covers the American filing.

Does the company still save you anything?

Far less than it used to. Successive changes narrowed the reliefs that once made enveloping attractive, and non-resident companies now pay corporation tax on British property income in the ordinary way.

Many structures set up a decade ago now cost more than they save.

That is worth revisiting rather than assuming the original advice still holds.

Can you take the property out of the company?

You can, but the exit is rarely cheap. Transferring the property to the shareholders can trigger stamp duty, a capital gains charge in the company, and a distribution taxed in your hands on both sides of the Atlantic.

The cost often exceeds several years of the annual charge.

Model the whole exit before starting it, not just the first step.

How to check your position

1. Confirm who legally owns the property and in what form.
2. Establish the property value at the relevant valuation date.
3. Check whether that value exceeds the threshold for the year.
4. Identify whether any occupier is connected with the owner.
5. Decide which relief, if any, applies to the period.
6. File the return by 30 April, whether or not tax is due.
7. Review the American company reporting for the same year.

What happens if you never filed?

Penalties accrue per return and interest runs on any unpaid charge. The enveloped dwellings obligation reaches back to when the structure first qualified. Several missed years can therefore add up quickly.

Filing voluntarily puts you in a considerably better position.

Check the American side at the same time, since the same years are usually outstanding there too.

Does it apply to a holiday home?

Yes, where a company owns it and the value clears the threshold. Where the shareholders use the property for part of the year, connected people occupy it, so the letting relief falls away for that period.

Mixed use across a year needs the periods separating.

Keep a simple record of who stayed and when.

What about valuation?

The charge uses a value at a fixed revaluation date rather than the price you paid, and those dates arrive every few years. A property that sat below the threshold can cross it at the next revaluation without you doing anything.

A professional valuation is worth having near a band boundary.

HMRC can ask you to justify the figure you used.

Does it interact with the rental reporting?

They run on separate tracks. The company reports its rental profits under corporation tax in the ordinary way, while the enveloped dwellings return deals only with the annual charge and any relief you claim against it.

Both land in the same year and both need doing.

Our guide to UK rental income on a US return covers the income side.

What if the company has more than one property?

You test each dwelling separately against the threshold, and each needs its own entry. A company holding three flats can owe the charge on one and claim relief on the other two in the same year.

The return handles several properties together.

But the analysis has to run property by property.

Does a mortgage reduce the charge?

No. The charge follows the value of the property rather than your equity in it, so a heavily mortgaged flat attracts exactly the same amount as one owned outright at the same value.

That surprises owners who expected debt to help.

Gearing changes nothing at all here.

It is a tax on the asset, not on the wealth behind it.

What about a partnership?

A partnership with a corporate member falls inside the enveloped dwellings rules, which catches structures people assume sit safely outside them. An ordinary partnership of individuals stays outside, so check the members rather than the label.

Check the members rather than the label on the agreement.

One corporate member is enough to bring it in.

Does it affect a sale?

The enveloped dwellings charge stops when the company disposes of the property, and you apportion the final period accordingly. The gain on sale then follows the corporation tax rules for non-resident companies instead of this regime.

America taxes the same gain under its own regime.

Our guide to selling a UK business covers the shares route.

What records should you keep?

The valuation you relied on and how you reached it, a note of who occupied the property in each period, and copies of every return filed. Those three answer almost any question HMRC raises later.

Keep the company accounts alongside them.

The American filings draw on the same figures each year.

Is professional valuation worth it?

Near a band boundary, yes. The difference between two bands can run to thousands a year, and an agent appraisal costs a fraction of that while giving you something defensible.

Well inside a band, a reasoned estimate usually suffices.

HMRC offers a pre-return banding check in some cases.

Does the charge rise each year?

The band amounts are uprated annually, so the figure creeps upward even when nothing about the property changes. Budget for a slightly larger number each April rather than last year figure.

Revaluation dates move properties between bands separately.

Those two effects together can produce a sharp jump in one year.

Who actually signs the return?

A director or an authorised agent files on behalf of the company, since the obligation belongs to the company rather than to you personally. An American director still carries their own reporting separately.

Agents need authorisation in place before the deadline.

Arrange that well before April rather than during it.

Does it affect your American estate position?

Indirectly, and often not in the way people hoped. Holding British property through a company was once a route around British inheritance tax, but changes brought residential property back into charge through the shares themselves.

Americans face their own estate rules on the company shares.

Our guide to US-UK inheritance tax covers the death side.

How long does a review take?

A first review usually takes a few hours once the deed, the accounts and the occupation history are in front of somebody. The answer is normally clear quickly, because the tests are mechanical rather than judgemental.

Exit modelling takes longer and needs valuations.

Start it well before the April filing date.

Mistakes and penalties we see with enveloped dwellings

The first is assuming an enveloped dwellings relief removes the filing. It removes the tax and nothing else.

The second is missing a revaluation date and sliding into the charge unnoticed.

The third is letting a family member live in the property without checking the connected person rules.

The fourth is ignoring the American company reporting entirely, which carries much larger penalties.

How US UK Tax Accountants helps

We check whether the structure still earns its keep, file the enveloped dwellings return with the right relief claimed, and line it up with the American company reporting for the same year. Then we price an exit if one makes sense.

Where years are outstanding, we handle the catch-up on both sides. Our US federal return service covers the American filings.

If a company owns your British home and you file in America, get in touch. The 30 April deadline arrives earlier than most people expect.

Last reviewed 3 October 2026. This article is general information and not personal tax advice. Every structure turns on its own facts, so take advice on yours before acting.