Old date-of-death appraisals — valuing a Utah home ten years after the death

Mom died in 2013. The house sat. Nobody sold it, nobody appraised it, and the deed passed to three siblings who each had a reason to wait — one lived in it, one lived out of state, one didn't want to be the person who forced the issue.

Now one of them wants out, a buyer is interested, and a CPA has asked what the basis is. The answer everybody at the table expects is that the window closed. That a value nobody captured in 2013 is a value nobody can capture now, and the heirs will just have to eat whatever the IRS decides.

It didn't close. A retrospective appraisal with a 2013 effective date is an ordinary assignment written under the same standard as one dated last Tuesday — and nothing in the tax code requires a date-of-death value to be established while the estate is open. What a decade actually changes is the research, the cost, and one problem specific to Utah that makes the whole thing harder here than in most states.

A retrospective appraisal is a standard product, not a workaround

Two dates live on every appraisal report, and they were never required to match. The report date is when the appraiser signed it. The effective date is the date the value opinion speaks to. When the effective date precedes the report date, the assignment is retrospective — a category USPAP names, addresses in its advisory guidance, and treats as routine work rather than an exception.

The tax side agrees. Fair market value under Treasury Reg. § 20.2031-1(b) is the price a willing buyer and a willing seller would agree on, neither under compulsion, both reasonably informed. Read the definition closely and notice what isn't in it: any reference to when the analysis gets performed. The standard is anchored to a date, not to a calendar window for doing the work.

The practical version — an appraiser who takes a 2013 effective date isn't guessing backward from today's value. The 2013 market is a closed data set. Every sale that happened in it already happened, at a price that is already fixed, in conditions that are already recorded. It's a harder file to build. It is not a less certain one.

The date on the report and the date the value speaks to are two different fields. They always have been.

Utah hides the one number you would most want

Here is the part that surprises out-of-state heirs and their attorneys.

Utah is a non-disclosure state. A deed recorded with a Utah county recorder documents that a property changed hands, who conveyed it, and to whom. It does not state what the buyer paid. There is no real estate transfer tax in Utah either, which removes the other common back door — in transfer-tax states you can reverse-engineer a sale price from the tax stamp on the document. Utah has no stamp to reverse-engineer.

County assessors do collect sale prices, through confidential verification questionnaires sent to buyers, and they use that data to set assessed values. That file is not open to the public, and it was never built to support a specific-property valuation.

So the practical consequence is this: in Utah, the historical record of what houses actually sold for lives almost entirely in the MLS archive. A licensed appraiser with MLS access can pull a 2013 closed sale with its list price, sale price, days on market, seller concessions, photographs, and agent remarks. An heir sitting at a laptop with a Zillow tab open cannot. Public-facing valuation sites reconstruct history from models, not from the closed records — which is exactly why two of them will give you two different numbers for the same house on the same past date.

This also quietly explains a pattern executors notice and misread. An appraiser who doesn't hold current MLS membership across the county in question can't do this work well no matter how experienced they are. Access is not a credential, but for a decade-old effective date it's a prerequisite.

In Utah the old sale price isn't at the courthouse. It's in a database you need a license to open.

What actually gets harder past year five

Not the sales themselves. A sale that closed in June 2013 closed in June 2013 forever — the number doesn't decay. Four other things do.

Verification. Standard practice is to confirm a comparable sale with someone who was party to it, usually the listing agent. Twelve years out, that agent has often left the business, changed brokerages twice, or simply doesn't remember a transaction from a decade ago. Verification shifts from human confirmation to documentary — the MLS record cross-checked against the recorder's index and the assessor's field card for that tax year. It's defensible. It takes longer.

Condition as of the effective date. This is the one most people underestimate. The appraiser is standing in a house that has absorbed twelve years of change since the date being valued. A roof from 2018. A basement finished in 2020. A kitchen somebody redid the year before listing. The report has to value the house as it stood on the effective date, which means subtracting everything that came after — and documenting the subtraction. City and county permit history does a lot of that work. Old listing photographs help enormously if the house was ever marketed. Insurance claim records, contractor invoices, and the heirs' own photographs fill the rest. An executor who can produce a shoebox of pictures from a 2014 family Christmas has handed the appraiser real evidence.

The neighborhood. A 2013 block in Sugar House and a 2026 block in Sugar House are two different markets wearing the same street name. Infill, teardowns, a light-rail extension, a school boundary change — all of it has to be reconstructed from data rather than observed on the drive through.

Market direction at the effective date. This drives the time adjustment, and it varies violently by year in Utah. 2013 was early recovery with prices climbing off a bottom. 2021 was a near-vertical spike. 2023 was a stall. Whether a comparable sale that closed four months before the effective date needs an upward adjustment, a downward one, or none at all depends entirely on which of those markets the effective date sits in — and it has to be extracted from paired sales and trend data, not recalled.

The sales survive intact. Everything you would want to ask a human being about them does not.

The feasibility line sits further back than people guess

There's no rule that cuts off a retrospective effective date. There's a practical line, and it tracks the depth of the archive.

• 2005 to present — routine. Full digital MLS records with photographs, remarks, concessions, and price-change history. A 2010 or 2015 date of death lands squarely here, which covers most of what heirs are actually asking about.
• Roughly 1998 to 2005 — workable, thinner. Records exist but carry fewer photographs and shorter remarks. More weight falls on recorder and assessor archives, and the report will describe its data limitations more explicitly.
• Before roughly 1995 — hard. Transfers are documented, but not in a form that supports a defensible adjustment grid. Feasible for the simplest properties in the densest neighborhoods, and the report will carry heavier assumption language. Sometimes the honest answer is no.

Rural geography compresses that timeline. Morgan, Tooele, and Wasatch County had fewer transactions to archive in the first place, so an effective date that's routine in Salt Lake County can be genuinely thin thirty miles away. The same effect that widens the fee range on Summit County resort property widens it further when the effective date is old.

An appraiser should tell you which band a specific date falls into before quoting, not after cashing the retainer. An assignment that can't be supported produces a report that gets excluded — and a bill nobody wants to explain to the other heirs.

What the missing appraisal actually costs

The reason this comes up at all is basis.

Under IRC § 1014, property acquired from a decedent takes a basis equal to its fair market value at the date of death. The step-up is automatic. It happens on the transfer whether or not anybody documents it, and there is no form to file to claim it. What § 1014 gives the heirs is a legal right to a number. What it does not give them is proof of what that number was.

Substantiating basis is the taxpayer's job — the general rule laid out in IRS Publication 551. Absent an appraisal, the fallback is whatever else is lying around: the county assessor's mass-appraisal figure for that year, or an automated model run backward. A mass appraisal is built to distribute a tax burden across thousands of properties, not to value one house; on a specific property it can miss by a wide margin in either direction. An automated estimate on a twelve-year-old date is a model output with no closed-record verification behind it.

Run the arithmetic on the example. House worth $310,000 at a 2013 death, sells for $640,000 in 2026. Correct basis, $310,000 — taxable gain of $330,000. If the substantiated basis instead lands at $265,000, the gain is $375,000. That extra $45,000 costs roughly $6,750 in federal capital gains tax at the 15 percent rate, more at 20 percent, plus Utah income tax on top of it. The appraisal that would have prevented the whole conversation costs a small fraction of the difference.

Two footnotes worth knowing. Gain on inherited property is always treated as long-term regardless of how briefly the heirs held it — that part is in the heirs' favor. And a narrower rule, the consistent-basis requirement under IRC § 1014(f) with its Form 8971 reporting regime, caps an heir's basis at the value reported on the estate tax return. That one binds only estates that were required to file a Form 706, which the overwhelming majority of Utah estates never are. Where it does apply, the deadline for fixing a bad number has usually passed, and the whole question becomes an argument rather than an appraisal — the ground covered in the Form 706 quick reference for Utah CPAs.

The step-up is automatic. The evidence for it is not.

The fee, and what moves it

A standard Utah residential estate appraisal runs $500 to $800, and the levers behind that band are broken out in the county-by-county cost breakdown. Retrospective depth is the single largest of those levers, and it moves roughly like this:

• Inside three years — base band. The appraiser was working in that market. Archive access is a formality.
• Five to ten years — modest premium. Archive pulls and documentary verification replace a phone call.
• Ten to twenty years — $800 to $1,100 on a standard single-family home. Condition reconstruction is the added work, and permit research is the bulk of it.
• Beyond twenty years — quoted case by case, and occasionally declined outright.

One more line item comes up constantly in exactly this scenario, because the heirs are selling: two effective dates. A date-of-death value for basis and a current value to price the sale or a sibling buyout are two separate analyses, not one report with an extra paragraph. Quote both up front or the second one arrives as a surprise.

If a decade-old effective date is on the table, ask for the fee in writing with the effective date named on the quote. A number that isn't tied to a specific date isn't a quote for this assignment.

The premium is hours. It always was.

Frequently asked

Related reading

The basis question underneath all of this is covered directly in IRC § 1014 step-up basis — why Utah heirs need an appraisal even without estate tax. For an executor still inside an open administration — where the Utah Code § 75-3-706 inventory clock is the live deadline rather than a sale — start with the executor's guide to Utah date-of-death appraisals, and check the cases where skipping the appraisal is the right call before spending estate money. The service home for this work is the estate, probate & date-of-death hub. Coverage runs across Salt Lake, Davis, Utah, Weber, Summit, Wasatch, Tooele, and Morgan County.

The heirs who wait usually wait because nobody told them there was a clock. There isn't one, exactly — but there is a slope, and every year the file gets a little more expensive and a little more dependent on records somebody else decided to keep. The right time to order a retrospective appraisal is the day the question gets asked. That day has already arrived.