Date of Death Appraisals: How Retrospective Valuation Really Works
When someone dies owning real estate, one question arrives before almost any other in the settlement process: what was the property worth on the day they died? Not what it is worth today, and not what the town assessed it at — its market value on a specific past date. Answering that question is a specialized assignment called a retrospective appraisal, and for executors and attorneys it behaves differently from any appraisal they have ordered before.
What Is a Date of Death Appraisal?
A date of death appraisal is a professional valuation of property with an effective date of the owner's death, rather than the date the appraiser inspected it. The report may be prepared months or even years later, but the value opinion looks backward: what would this property have sold for, on that day, in that market? The distinction between effective date and report date is explicitly recognized under USPAP, the uniform standards appraisers work under — retrospective assignments are a normal, defined part of practice, not an improvisation.

Why it matters is mostly federal and state tax law. The value at death establishes the estate's asset values for IRS estate tax reporting and sets the heirs' stepped-up cost basis — the number that determines capital gains when the property is eventually sold. Massachusetts adds its own estate tax threshold, so even estates far below the federal exemption often need a defensible number for the Massachusetts estate tax. An online estimate or the town's assessment will not survive scrutiny on either front; a signed, supported appraisal will.
How Appraisers Value Backward in Time
The mechanics are the same discipline as any appraisal — comparable sales, adjustments, documented reasoning — with one constraint: the evidence must be contemporaneous with the effective date. The appraiser selects sales that closed around the date of death, uses market conditions as they stood then, and ignores everything that happened afterward. If the neighborhood jumped 12% the following spring, that jump does not belong in the value. If the kitchen was renovated after the owner died, the appraiser values the kitchen as it was.
That last point trips up many families. The appraiser will inspect the property as it stands today, then work with the estate to reconstruct its condition at death — photographs, listing history, contractor invoices, even the recollections of family members all help. The more the estate can document about the property's condition on the effective date, the tighter the report.
Good news for executors: waiting does not ruin the assignment. Retrospective appraisals are routinely performed a year or more after death, because the comparable sales from that period are a matter of record. What does erode is condition evidence — so if the property will be cleaned out, renovated, or sold, photograph it thoroughly first.
What to Have Ready Before Ordering
A short list makes the assignment faster and the report stronger: the exact date of death; the deed or a description of what interest the deceased held (full ownership, a half interest, a life estate — fractional interests are valued differently); any photos or listings showing condition near the effective date; records of renovations before or after death; and the intended use of the report — estate tax filing, basis documentation, probate accounting, or a family buyout. Intended use matters because it shapes who the report is prepared for and how it will be scrutinized.
One more practical note: order one appraisal, not three opinions. Estates that start with an online estimate, negotiate with the assessment, and only later order a real appraisal usually end up explaining the discrepancies to someone — the IRS, the court, or each other.
The Alternate Valuation Date Wrinkle
Federal law adds one more date to keep straight. For taxable estates, the executor may elect to value all estate assets as of six months after death — the alternate valuation date — instead of the date of death itself, but only when doing so lowers both the gross estate and the estate tax owed. In a falling market, that election can matter enormously, and it changes the appraisal assignment: the appraiser now needs a supported value at the later date, sometimes alongside the original one. Whether the election makes sense is a question for the estate's attorney or CPA, not the appraiser — but it is far cheaper to raise it before the appraisal is ordered than after the report is delivered. If the estate is anywhere near a taxable threshold, ask the question early and order the date of death appraisal with the possibility in mind.
The Bottom Line
A date of death appraisal answers one precise question — market value on the day the owner died — with evidence from that moment in time. It is the number the IRS, Massachusetts, and the probate process expect, and it protects heirs twice: once at filing, and again years later when the stepped-up basis meets a sale. Document the property's condition early, gather the paperwork, and put the question to a professional who does retrospective work routinely.
Appraisals Unlimited has performed estate and date of death appraisals across New England since 1993, working directly with executors and estate attorneys. Order an appraisal or call (781) 449-7600.



