Form 706 real estate appraisals — a Utah CPA's quick reference

The executor's appraiser sends the report. The CPA opens it on the second screen, scrolls to the certification page, signs off, and moves on. Most of the time that's fine — the report is competent, the appraiser is credentialed, and the value will survive an audit if one ever happens. But occasionally the report has a quiet defect that doesn't surface until a deficiency notice arrives two years later. By then the appraiser is hard to reach, the audit clock is running, and the executor wants to know why the CPA didn't catch it.

Below is the quick-reference checklist for what a Form 706 real-estate appraisal must contain, who can sign it, what the IRS-side risk looks like when it goes sideways, and where the protective rules live. Written for Utah CPAs and estate-tax practitioners who handle a handful of 706s per year and want a one-screen verification pass before signing the return. Nothing here is legal or tax advice — that's the practitioner's call. This is what the appraiser should be sending you, and what to do if they didn't.

Filing thresholds — when Form 706 is even on the table

For deaths in 2025, Form 706 is required when the decedent's gross estate plus adjusted taxable gifts exceeds the basic exclusion amount of $13.99 million per individual. With portability electing the deceased spousal unused exclusion (DSUE), a surviving spouse can effectively shield up to $27.98 million.

That threshold drops on January 1, 2026 (absent congressional action) to approximately $7 million per individual — the pre-Tax Cuts and Jobs Act level, indexed for inflation. The sunset is driving a substantial volume of 2025 lifetime gifting and estate-planning activity, much of which generates Form 706 work down the road.

Three filing scenarios trigger a 706 even when no tax is owed:

• Above-threshold estate. Gross estate plus adjusted taxable gifts exceeds the basic exclusion. Even if marital deduction or charitable deduction eliminates tax, the return is required.
• Portability election. Executor of a deceased spouse's estate elects to transfer DSUE to the surviving spouse. The 706 must be timely filed (or qualify for late-portability relief under Rev. Proc. 2022-32). Most portability-only filings still require valuation of real estate, since the gross estate computation drives DSUE eligibility.
• GST-only filings. Generation-skipping transfer tax exemption allocations. Less common.

For each real-estate asset listed on Schedule A, the IRS expects a qualified appraisal in the executor's file. Whether to physically attach the full appraisal vs. just summarize on the schedule depends on value: under $500,000, the schedule entry plus appraisal-in-file is the standard practice; over $500,000, attaching the full signed report to the return is the defensive position most practitioners take.

What the IRS calls a "qualified appraisal" — the report-content checklist

The qualified-appraisal definition is built on Treas. Reg. § 1.170A-17 (which originated in the charitable-contribution context but is incorporated by reference into estate-tax practice through IRM 4.25.5). A report that meets the standard contains all of the following — verify each before signing the return:

• Description of the property. Address, legal description (lot/block or metes-and-bounds), parcel number, year built, gross living area (measured to ANSI Z765-2021 standards for residential), bedroom and bathroom count, lot size, and a clear condition rating as of the effective date.
• Effective date statement. The date as of which value is opined — the date of death for a Form 706 appraisal, or six months later if the alternate valuation date is elected. The effective date must be explicit; many reports include both the effective date AND the report-issue date.
• Date of report and date of inspection. Both disclosed separately from the effective date. The inspection can predate or postdate the effective date; the report-issue date is when the certification is signed.
• Highest and best use analysis. What use the property is best suited for as of the effective date. For most residential property this is one paragraph (continued residential use), but for transitional or unique property it can run several pages.
• Sales comparison approach. At minimum three comparable sales that closed before the effective date, with adjustments documented for differences in size, condition, location, lot, view, and time. Retrospective reports use only data that would have been knowable as of the effective date — comparable sales that closed after the effective date are excluded.
• Income approach (when applicable). For income-producing property — rentals, multi-unit, commercial-style residential — an income capitalization or gross rent multiplier analysis. Owner-occupied single-family homes typically don't require an income approach.
• Cost approach (when applicable). Land value plus depreciated cost of improvements. Usually included for new construction or unique properties without strong comparable sales.
• Reconciliation and final value. A weighted conclusion across approaches, expressed as a single dollar value at the effective date — not a range.
• Appraiser certification and signature. The USPAP-required signed certification page — declaration of independence, no contingent fee, no excluded-party relationships, USPAP compliance, and the appraiser's license credentials including state, license number, and credential level.
• Limiting conditions and assumptions. Standard USPAP boilerplate plus any specific limitations for the retrospective work (condition reconstructed from photos, market data limitations, etc.).
• Appraiser's taxpayer identification number. Required for IRS purposes. Either an EIN or SSN — the report should show this on the certification page or signature block.

If any of these are missing, the report may still be defensible — but the safe answer is to call the appraiser and request a revised report. Most Certified Residential appraisers will reissue at no charge if the original was incomplete.

Qualified-appraiser credential requirements

The qualified-appraiser definition under Treas. Reg. § 1.170A-17(b) requires:

(a) State license or certification. For Utah residential real estate, this means the appraiser holds an active credential from the Utah Division of Real Estate. The three Utah credentials in order of scope: Trainee (cannot sign independently), Licensed Residential (limited to non-complex 1-4 unit properties under specific value thresholds), and Certified Residential (full authority for 1-4 unit residential). Estate work that lands above Licensed Residential's complexity or value thresholds requires Certified Residential. Verify the credential at secure.utah.gov/llv/search.

(b) Regularly performs appraisals for compensation. Documented appraisal practice — not a one-off favor. The certification page should reflect a working appraisal business.

(c) Verifiable education and experience. The appraiser has demonstrable knowledge of valuing the specific type of property at issue. For Wasatch Front residential, this typically means an appraiser with substantial local comparable-sales experience — not someone from out of state or out of region trying to value Utah property remotely.

(d) Not an excluded party. Cannot be the donor, donee, taxpayer, executor, beneficiary, related party, or anyone with a financial interest in the transaction. For estate work, this means the appraiser cannot be a family member, a co-executor's spouse, or anyone named in the will.

(e) Penalty acknowledgment. The appraiser understands the IRC § 6695A penalty exposure for an aiding-and-abetting valuation misstatement. The certification page typically references this acknowledgment.

For commercial or unusual property, a Certified General appraiser may be required instead of Certified Residential. But for the bulk of Utah estate work — single-family homes, condos, vacation properties, small multi-unit residential — Certified Residential is the appropriate level.

The 20% and 40% accuracy-related penalties

This is where bad appraisals get expensive. IRC § 6662 imposes accuracy-related penalties on underpayments of tax attributable to valuation misstatements:

• Substantial valuation misstatement (20% penalty). The reported value is 65% or less of the correct value as ultimately determined by the IRS. Example: a $4 million property reported at $2.5 million (62.5%) — substantial misstatement, 20% of the unpaid tax owed as penalty.
• Gross valuation misstatement (40% penalty). The reported value is 40% or less of the correct value. Example: the same $4 million property reported at $1.5 million (37.5%) — gross misstatement, 40% of the unpaid tax.

The penalties apply only if the misstatement actually results in tax due. For an estate well below the federal exemption, a valuation misstatement may not generate any underpayment and thus no penalty — but it can still cause problems at the basis-step-up level for heirs years later.

The protective rule: under IRC § 6664(c) and Treas. Reg. § 301.6501(c)-1(f), reasonable cause and good-faith reliance on a qualified appraisal can provide a defense to the accuracy-related penalty, even if the IRS later disagrees with the value. Adequate disclosure on Form 706 starts the 3-year statute of limitations and provides the foundation for the reasonable-cause defense.

The practical implication for CPAs: having a qualified appraisal in the file is the primary penalty defense, AND the primary statute-of-limitations protection. A weak or incomplete appraisal undermines both at once.

Alternate valuation, retrospective issues, and timing notes

A handful of timing-and-method issues come up enough to be worth a quick note:

Alternate valuation date (IRC § 2032). The executor may elect to value the estate at six months after the date of death instead of the date of death, but only if doing so both reduces gross estate value AND reduces estate tax owed. The election is on Form 706, applies to the entire estate, and requires two appraisals (date of death plus alternate date) for any real property. For sub-$13.99M estates that don't file 706, this is moot.

Retrospective effective date. The appraisal effective date is always the date of death (or alternate date if elected), regardless of when the appraiser is engaged. A report written and signed today with an effective date 18 months ago is a retrospective appraisal — harder than current-date work because comparable sales must predate the effective date, condition is reconstructed from records, and market-conditions adjustments require historical market analysis. For background on retrospective methodology, see what attorneys should know about retrospective appraisals.

The 60-day signature rule. The charitable-contribution rule under IRC § 170(f)(11)(E) — that the appraisal must be signed no earlier than 60 days before the donation — applies to Form 8283 charitable donations, NOT to Form 706 estate-tax work. For 706, the appraisal's signature date is more flexible; the controlling rule is that the report is signed and complete before the return is filed. Best practice is to sign within a reasonable window of the return-filing date.

Form 706 due date. Nine months after the date of death, with a six-month automatic extension available via Form 4768. The qualified appraisal should be in hand well before the filing deadline — ideally 60 to 90 days out — to allow time for CPA review, attorney review, and any value-driven planning adjustments.

For the procedural counterpart written for executors (rather than CPAs), see Utah date-of-death appraisals — what executors actually need to know. For the gift-side appraisal framework that uses related but distinct rules, see Form 709 gift tax appraisals. The service home for both is the gift tax & charitable-gift appraisals service page and estate, probate & date-of-death appraisals service page.

The qualified appraisal closes three loops at once: the IRS audit, the statute of limitations, and the penalty defense. Worth the verification pass before signing.

Frequently asked

Related reading

For the executor-facing version of this material (procedural calendar, vetting an appraiser, alternate valuation date) see Utah date-of-death appraisals — what executors actually need to know. For the gift-side counterpart (lifetime gifts before death rather than transfers at death), see Form 709 gift tax appraisals — what Utah year-end gifts actually need. For charitable donations of inherited real estate, see Form 8283 real estate appraisals. For HNW estate-planning structures (GRATs, IDGTs, family LPs), see GRATs, IDGTs, and family LPs. The service home for this work is the estate, probate & date-of-death appraisals service page.

The qualified appraisal IS the audit defense. Verify it before signing the return.