The valuation that decides your tax twenty years from now

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

A relative in Britain dies and leaves you a house. Inheriting property across two tax systems turns on two figures recorded on one day.

Those are the probate value and the exchange rate at the date of death. Fix them properly and the next twenty years are arithmetic.

Get them wrong, or never record them, and a sale decades later becomes guesswork nobody can defend.

Key takeaways

• The probate valuation becomes your cost base in both countries.
• Record the sterling to dollar rate on the date of death.
• America resets your cost to the value at death, not what the deceased paid.
• A bequest over $100,000 from abroad needs an information return.
• That report carries a penalty even though no tax is due.
• A stronger pound can create a dollar gain on a house that never rose.
• Selling brings a British report within sixty days of completion.
• Letting it out means two rental computations every year.

Does inheriting property give you a new cost base?

America resets your cost in the asset to its value at the date of death. So years of growth before you inherited simply disappear for American purposes, and only growth afterwards can produce a gain. It is the single most valuable feature here.

Our guide to selling a UK home as a US citizen covers disposals.

Get the date of death value in writing at the time.

Does Britain give the same step up?

In effect yes, because your acquisition cost is the probate value. The two figures are usually the same, since both countries look at the market value at death. Where they differ, you keep two numbers rather than reconciling them.

Our guide to UK capital losses for US citizens covers the British gains rules.

A formal valuation is worth paying for.

What if probate values are later revised?

HMRC can challenge a probate valuation, and a revision changes your base cost in Britain. America generally follows the value at death as finally determined, so a British revision usually flows through to both. Keep the correspondence.

Our guide to an HMRC enquiry covers the process.

A quick sale is itself evidence of the value.

Does currency movement create a gain?

It can, and this surprises nearly everybody. America measures the gain in dollars, so a stronger pound between death and sale produces a dollar gain even where the sterling price never moved. The house did nothing and you owe tax.

Our guide to a UK mortgage and currency gain covers the related problem.

Record the exchange rate at the date of death.

What do you file when inheriting property?

An information return, where the amount is large enough. Receiving more than a hundred thousand dollars from a foreign individual or estate in a year triggers the report, and it is a disclosure rather than a tax. Most inherited houses clear that figure easily.

Our guide to Form 3520 and foreign gifts covers the report.

The penalty for missing it is a percentage of the amount.

What about inherited furniture and chattels?

They come with the same treatment and far smaller numbers. Personal items usually fall under British exemptions on a sale, and America applies the same step up as it does to the house. Few of them are worth the paperwork.

Our guide to the US-UK tax treaty covers a related point.

A valuable painting is the exception worth listing.

What happens when you sell?

Both countries look at the gain over their own base cost, which usually produces a similar figure. Britain wants a report within sixty days of completion where tax is due, and America wants it on the annual return. The deadlines are very different.

Our guide to the 60-day CGT report covers the British filing.

Sixty days is far shorter than people expect.

Do you need a UK tax number?

If you have British income or a chargeable gain, yes, and getting one from abroad takes weeks. Rental income or a sale both create the need, so start early rather than when the deadline is close.

Our guide to registering for Self Assessment covers registration.

The sixty day gain deadline waits for nobody.

A worked example

Take an illustrative case. An American inherits a house in Bristol valued at £400,000 for probate.

She reports the inheritance on an information return and pays no tax on receiving it.

Three years later she sells for £460,000, giving a £60,000 gain in both countries.

Britain taxes that gain and America taxes it too, with a credit for the British tax, so she pays roughly once.

Two countries, one house

What if inheriting property makes you a landlord?

Then you have rental income in both systems, computed differently. Britain restricts mortgage interest relief while America allows it, and depreciation is compulsory on the American side and absent on the British one. Two computations, every year.

Our guide to UK rental income and US tax covers letting.

Depreciation comes back to bite on a later sale.

Do you register as a landlord?

If you live outside Britain and let a British property, the non-resident landlord rules apply and your agent may withhold tax. You can apply to receive the rent gross and settle through a return instead, which almost everybody does.

Our guide to the non-resident landlord scheme covers the registration.

Apply before the first tenant moves in.

Should you sell or keep it?

Selling soon after death is often cleanest, because the step up means little or no gain in either country. Keeping it brings annual rental computations, two sets of records and a growing gain. Neither answer is wrong, and the costs differ a lot.

Our guide to US tax deadlines for expats covers a related point.

An early sale is the simplest outcome by a distance.

What if you move into it?

Living there can bring main residence relief in Britain and the American exclusion on a sale, but both need genuine occupation over time. A few months before selling will not do it. The reliefs are generous and the conditions are real.

Our guide to selling a UK home as a US citizen covers the reliefs.

The American exclusion needs two of the last five years.

What if the house has a mortgage?

The debt usually passes with the property or is cleared by the estate, depending on the will. Taking on a sterling mortgage as an American creates its own problem, because repaying one can produce a currency gain that America taxes.

Our guide to the statutory residence test covers a related point.

Ask the executor what happens to the debt.

Is inheriting property taxable in America?

Not as income, which is the first thing people need to hear. According to IRS guidance on estate questions, money and assets received from a deceased person are not income to the beneficiary. The estate may owe tax; you do not owe income tax on receiving it.

Our guide to UK inheritance tax and the US system covers the estate charge.

The charge sits on the estate rather than on you.

Does inheriting property mean UK inheritance tax?

The estate, before anything reaches you. British inheritance tax is charged on what the deceased left rather than on what each beneficiary receives, so the executor settles it out of the estate. You inherit the net figure.

Our guide to a US executor and a UK estate covers the executor's job.

Beneficiaries do not receive a bill of their own.

Does inheriting property affect your FBAR?

The house itself is not a financial account, so it stays off that filing. A British bank account opened to receive rent or sale proceeds is a different matter and counts towards the threshold immediately. Most inheritances create exactly such an account.

Our guide to FBAR signature authority covers accounts.

Executor accounts can be reportable too.

Does inheriting property need asset reporting?

Property held directly is generally outside it, because the form covers financial assets rather than bricks. An interest in an estate that has not yet been distributed can be reportable, which catches people during a long probate.

Our guide to Form 8938 reporting covers the asset form.

The interest in the estate is the reportable item.

Is the estate a foreign trust?

An estate in administration is not a trust, though a will can create one that is. Where the house is left in trust rather than outright, a very different and much heavier reporting regime applies. Read the will before assuming.

Our guide to Form 3520-A and foreign trusts covers trust reporting.

A life interest for a surviving spouse is the usual trigger.

How long does inheriting property take?

Months, and often more than a year where property is involved. You own nothing until the estate is administered, so the reporting and the valuations all follow that timetable. Americans chasing a tax year end frequently find the estate is not ready.

Our guide to Form 56 and fiduciary notices covers acting for an estate.

The date of death governs the values, not the date you receive it.

What if the estate pays you cash instead?

Then the house was sold inside the estate and you receive proceeds rather than property. There is no step up to worry about and no base cost to record, because the estate bore any gain. The reporting threshold still applies to the cash.

Our guide to UK trust distributions covers money from a structure.

Ask the executor which route they are taking.

What if there are several beneficiaries?

Each takes a share with their own base cost, and only the American ones have American filings. Selling a jointly inherited house needs agreement, and one beneficiary's tax position should not drive the timing for everybody else.

Our guide to joint accounts for US-UK couples covers shared ownership.

Agree the plan before the grant comes through.

Can you refuse when inheriting property?

There is a formal mechanism in Britain, and the American rules on disclaimers are strict about timing and form. People consider it where a property brings more cost than value. Take advice before signing anything, because it cannot be undone.

Our guide to US gift tax for expats covers passing value on.

A botched disclaimer is treated as a gift by you.

Does inheriting property affect your US state tax?

Only if a state still treats you as resident. Most states take no interest in a house abroad, and a handful tax residents on worldwide income including the rent from it. Check the last state you lived in rather than assuming.

Our guide to state tax for expats covers the stubborn states.

No state charges you for receiving the inheritance itself.

Does inheriting property change your IHT position?

It adds an asset to your own estate for the future. A British house owned by anybody is within British inheritance tax whoever owns it, so the charge simply moves down a generation. That is worth planning for rather than discovering later.

Our guide to long-term residence and IHT covers your own position.

British land is always in scope here, wherever you live.

Does inheriting property affect your UK residence?

Owning a British house counts as a tie under the residence tests, which can tip a borderline case into being resident here. Somebody visiting Britain regularly and now owning a home needs to recount their days carefully.

Our guide to the FIG regime for arrivers covers coming here.

An inherited house is an accommodation tie whether you use it or not.

Can you hold it through a company?

You can, and it is usually a poor idea for a home. British charges on enveloped dwellings are designed to discourage it, and the American reporting for a foreign company is heavy. Direct ownership is almost always simpler and cheaper.

Our guide to the annual tax on enveloped dwellings covers the charge.

Companies suit commercial property, not family houses.

What records should you keep?

The probate valuation, the grant, the date of death exchange rate, and every cost of improvement afterwards. Those four decide the gain on a sale that may be twenty years away. Nobody can reconstruct them later.

Our guide to exchange rates on a US return covers conversion.

Keep builders' invoices with the deeds.

How to handle an inherited UK house

1. Get a formal probate valuation and keep it permanently.
2. Record the sterling to dollar rate at the date of death.
3. Check whether the value crosses the $100,000 reporting figure.
4. File the information return even though no tax is due.
5. Read the will to see whether a trust was created.
6. Register under the landlord scheme before letting it.
7. Diarise the sixty day British deadline if you sell.
8. Keep every improvement cost against the eventual gain.

Mistakes and penalties we see when inheriting property

The first is skipping the information return because no tax was due, which is exactly when the penalty applies.

The second is never getting a formal valuation, leaving the gain on a later sale impossible to compute properly.

The third is ignoring the exchange rate at death and discovering a dollar gain on a house that never rose in sterling.

The fourth is letting the property without registering, so an agent withholds tax nobody reclaims.

How US UK Tax Accountants helps

We fix the two numbers that matter at the start: the value at death and the rate on that day, because everything afterwards is computed from them.

Then we deal with the reporting that carries a penalty without a tax. Our trusts and estates service covers the rest.

If a British estate is about to leave you a house, get in touch before probate completes.

Last reviewed 29 October 2026. This article is general information and not personal tax advice, and estates differ.