How Do You Value a House You Inherited?

The sideboard gets a blue sticky note with a name on it. So does the dining table, the mantel clock, the box of photographs nobody has opened since the seventies. By the end of the afternoon almost every object in the house has been claimed by somebody. The house itself has nothing on it at all.

It is the largest asset in the estate and the only one in the room that no living person can describe. Four siblings can settle who gets the clock. Not one of them can say when the roof went on.

That gap is a tax problem, a pricing problem and a disclosure problem at once, and it opens on the day the owner dies.

What the tax code asks of the family

Federal law sets the cost basis of inherited property at its fair market value on the date of the decedent's death. The statute is 26 U.S. Code section 1014(a)(1), and the wording is plain: the basis is the fair market value of the property at the date of the decedent's death. Sell above that figure and the difference is a taxable gain. Sell below it and there may be a deductible loss. Everything the family will owe or save turns on one number attached to one day.

The regulations then define what that number means, and the definition is where the difficulty sits.

Read the last clause again. Both sides are assumed to hold reasonable knowledge of the relevant facts. In an ordinary sale that assumption is close enough to true, because the seller lived in the house and in most states has to write down what they know about it. In an estate, the person who held that knowledge is the person who died, and the definition goes on asking for it regardless.

Nobody is going to ask the family for a number

This is the part that catches families out. For deaths in 2026 the federal estate tax reaches only above a basic exclusion amount of $15,000,000 per person, set by Revenue Procedure 2025-32. The great majority of estates therefore file no federal estate tax return, and no agency ever asks what the house was worth on the date of death.

So the number never gets established. The house is cleared. Sometimes it is rented for a year or two, or sits while the paperwork moves. Eventually it sells, and only then does the figure matter. By then the evidence that would have supported it has gone: the furniture, the state of the mechanical systems, the photographs of the kitchen, the neighbour who remembered which contractor did the work.

Families fill that space with the two numbers they can find. The purchase price on the county record, which may date from 1987. And an online estimate from this morning, which has never been inside. Neither one answers the question the tax code asked.

What the record holds, and what it never held

A valuation is only as good as what can be established about the building. In an ordinary sale most of that comes from the person selling. In an estate it has to come from somewhere else, and for several of the items there is no somewhere else.

What a valuation needs to establish	Where it normally comes from	What an estate transfer leaves
The age of the roof and who installed it	Seller disclosure, receipts, the owner's account	Nothing, unless a receipt survived in a drawer
Whether water has ever come into the basement	Seller disclosure, which asks the question directly	Nothing. No disclosure is required
Which alterations were permitted and which were not	Municipal permit records and the owner's account	The permits only, and only if they were pulled
Why one room is finished to a different standard	The owner, in a sentence	Nothing
What was repaired after an event and what was covered over	The owner, and sometimes an insurance claim	Nothing the buyer can reach
The date and price of the last transfer	The county deed record	Intact, prominent, and often decades out of date

Notice which row survives. The only item that passes through an estate fully intact is the one with the least to say about what the house is worth now.

The disclosure the law does not ask for

In most states a seller has to complete a written statement about the condition of the property. Those statutes carry exemptions, and estates sit inside them.

Texas excludes from the seller's disclosure notice any transfer by a fiduciary in the course of the administration of a decedent's estate, guardianship, conservatorship, or trust. That is Property Code section 5.008(e)(5), and the exclusion is complete rather than partial. California takes two routes to the same place. Sales ordered by a probate court in the administration of an estate are exempt from the transfer disclosure statement, and so are sales by a fiduciary administering a decedent's estate or trust, with a carve-out where the trustee is a natural person who was a former owner or a recent occupant of the property. Those are Civil Code section 1102.2, subdivisions (b) and (d).

The reasoning behind the exemptions is sound. An executor two states away cannot be made to warrant facts about a house they never lived in, and forcing them to guess in writing would be worse than silence. But look at the effect on the file. The one document that normally carries the history of the building is absent in precisely the transaction where no living person can supply it, and a buyer who has read a dozen disclosures treats that absence as a paperwork quirk rather than as a hole in the evidence.

The estate sale is the sale the definition rules out

Here is a second trap, and it catches the families who believe they have already solved the first one.

When a house sells within a few months of the death, the sale price looks like the strongest possible evidence of value on the date of death. Sometimes it is. Often it is the one sale the federal definition excludes, because the words are neither being under any compulsion to buy or to sell, and an estate sale frequently has compulsion built into it. A fiduciary carries a duty to convert the asset. Heirs in different cities want the matter closed. The house is vacant, insured at a vacancy rate, and spending money every month it stands empty. A date gets set, and the price follows the date.

That sale then does a second job nobody asked it to do. It becomes a comparable for every similar house on the street. The listing may well have said estate sale in the remarks, and an experienced agent reads that and allows for it. What the remarks cannot say is which of the deferred items the price absorbed and which it did not, because nobody knew. The discount is real, its size is unknown, and it is now sitting in the evidence for the neighbours.

Why this arrives in volume from here

The first four figures describe how many of these transfers are coming. The last two describe what condition the houses will be in when they arrive. A cost-burdened owner is one spending more than 30% of income on housing, and the Joint Center flags the maintenance that such households struggle to fund. Maintenance that does not get done in an occupied home is invisible from the street and recorded nowhere, and it becomes the condition an appraiser observes years later with no history available to explain it.

What to do, and the order matters

1. Establish the value before the house is cleared. Condition evidence is perishable, and clearing the house destroys it. Photograph every room, the roof line, the basement, the furnace, the panel and the water heater, with dates on the files, before a single item leaves.
2. Pull the permit history yourself. Municipal permit records are the only part of the building's past that was written down by somebody other than the owner. They are public, they are usually cheap, and they will tell you which alterations were inspected.
3. Value it as of the date of death, not as of today. The evidence is the market as it stood around that date and the condition the house was in then. A current estimate answers a different question.
4. Do not let the purchase price anchor the conversation. A figure from 1987 is a historical record, not a valuation input. The same applies to an online estimate that has never been inside the building.
5. Treat a quick sale as a data point, not as proof. If the house has to be sold fast, that price may sit below what an unpressured seller would have achieved, and the family should understand that before they rely on it as the date of death value.
6. Ask for a range and ask what moves it. On a house with no documented history, the honest answer is a range, and the width of that range is information rather than weakness.

Do I need an appraisal for a house I inherited?

No law requires one in most cases, and that is exactly why it matters. Federal estate tax returns are only required above a basic exclusion amount of $15,000,000 for deaths in 2026, so the vast majority of estates file nothing and no agency ever asks what the house was worth. The number still decides the taxable gain whenever the house is eventually sold, because the heir's cost basis is the fair market value on the date of death. A valuation established while the house is still in the condition it was in is evidence. A figure reconstructed three years later from a county record and an online estimate is a guess with a dollar sign on it.

How do I find out what an inherited house was worth on the date of death?

The value has to be assessed as of that date rather than as of today, which means the sales used as evidence are the ones that were on the market around the date of death and the condition used is the condition the house was in then. Photograph every room, the roof line, the basement and the mechanical systems before anything is cleared out, because clearing the house destroys the only condition evidence that exists. Collect the permit history from the municipality yourself, since permits are the one part of the building's past that was written down. Then have the value assessed against that evidence rather than against the purchase price on the deed.

Does an estate sale price count as market value?

Not automatically, and the federal definition of fair market value is the reason. That definition describes a price agreed between a willing buyer and a willing seller with neither under any compulsion to buy or to sell. An estate sale often has compulsion built into it: a fiduciary with a duty to convert the asset, heirs in different cities who want the matter closed, and a vacant house costing money every month. A sale run to a deadline can land below what the house would have brought from an unpressured seller, which makes it weaker evidence of value than it appears to be, both for the family's tax position and for every neighbour whose home it later serves as a comparable.

An inherited house is the hardest case in residential valuation, because every variable that normally gets explained by the person selling arrives unexplained. That is also why the method has to be visible. When each comparable is adjusted toward the subject property line by line with the reason printed beside every figure, an heir who has never read a valuation can see which adjustments are doing the heavy lifting and ask about the ones that depend on a condition nobody can confirm. CMAflow prints that basis next to each adjustment and derives the range from the spread of the adjusted values, so a scattered set produces a wide answer that says so on the page rather than a confident single figure that cannot be supported. On an estate property, that spread is usually the most honest thing in the file.

The sticky notes get the furniture settled in an afternoon. The house takes longer, and it starts with writing down what is still there to be seen.

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The Independent Agent
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