The discipline the assignment runs on
A retrospective appraisal answers what a property was worth on a day that has already passed. The report gets written now; the value belongs to then.
Everything difficult about it comes from a single rule: only what the market knew on the effective date may be used.
A March 2022 date of death cannot be valued on the sales that closed that autumn. Nor can knowing how the rest of that year went be allowed to quietly tint the conclusion.
That is hindsight, and it is the flaw that makes readers discount these reports.
There is one narrow exception. Data from after the date may corroborate a trend the analysis has already established from contemporaneous evidence. Used to reach the conclusion rather than to check it, exactly the same data becomes a defect.
Which date goes with which purpose
| Purpose | Effective date |
|---|---|
| Estate, basis step-up, NJ inheritance tax | The date of death — or six months after, where the §2032 election has been made |
| Gift or charitable transfer | The day the transfer was made |
| Divorce | As counsel specifies; frequently not the filing date |
| Casualty or damage claim | Immediately before the loss |
| Litigation generally | As counsel or the pleadings specify |
The pattern worth noticing is that in almost none of these does the appraiser choose. The date arrives as an instruction, from an accountant, an attorney, an adjuster or a statute.
Which is precisely why it is worth repeating back before work starts. A date passed along second-hand, by someone who had a different purpose in view, is the usual way these reports end up answering the wrong question.
When the property has changed
That does not prevent the assignment. It changes how condition at the date gets established.
By the time anyone orders a retrospective appraisal the property has usually moved on — cleared, renovated, sold, now and then demolished. So your documentation is the valuable thing:
- Listing photographs from around the date
- A home inspection report
- Permits and contractor invoices, which put a date on the work
- Insurance photographs, on casualty claims
- The executor’s or owner’s own account of it
From those, the report states an extraordinary assumption about condition at the effective date, and discloses it plainly so a reader knows what the conclusion is standing on. The more evidence there is, the narrower that assumption gets and the stronger the report reads.
What sets the limit on how far back
Data, not any rule. New Jersey is comparatively good ground for this.
County clerk records and MOD-IV assessment data give reasonably reliable sales history, so effective dates several years back are ordinary work.
It gets harder in three situations:
- Low-turnover municipalities. A township with a handful of sales a year offers little inside a twelve-month window around the date.
- Unusual property types. Equestrian holdings, converted structures, multi-parcel assemblages — thin in the present and thinner in the past.
- Quiet markets. A date falling in a slow stretch has less contemporaneous evidence by definition.
None of that disqualifies an assignment. It changes how long the research runs and how much the report has to say about the limits of what it found — which is why turnaround here is longer than on a current appraisal, and why some dates are quoted individually.
What you receive
A written report carrying both the specified effective date and the date it was written, with comparable sales from around that date and an analysis of the market as it stood then.
Extraordinary assumptions are disclosed, and the certification is signed under USPAP.
Give us the date and the purpose together when you call. Where the two do not match, it is a great deal cheaper to find that out before the work than after it.
New Jersey specifics
- Date-of-death work for the New Jersey inheritance tax and for basis step-up runs to the date of death, which can be years back where an estate took a long time to settle.
- Casualty and insurance claims usually need the day immediately before the loss, and the policy rather than the claimant tends to define it.
- New Jersey keeps good public sales records through the county clerks and MOD-IV, so older dates are generally workable — though the data thins in low-turnover municipalities and across rural Hunterdon, Sussex and Warren.
What you receive
- A report carrying both the past effective date and the date of the report, so the retrospective basis is visible on its face
- Comparable sales that closed at or near the effective date
- An analysis of market conditions as they actually stood then
- Disclosure of any extraordinary assumption about condition at that date
- Signed USPAP certification
What we need from you
- The exact date required, and what it is required for
- Whatever documents condition at that date — photographs, listing sheets, inspection reports, permits
- Access now, where the property still stands in comparable form