If you have inherited a house or other real estate, getting an appraisal for inherited property establishes its fair market value on the date the previous owner died. That single number drives your tax basis, your estate and probate filings, your insurance coverage, and any buyout or division among co-heirs. Without it, you are guessing at every one of those decisions, and the guess usually costs you money.
Locking In Your Stepped-Up Tax Basis
Federal tax law resets the cost basis of inherited property to its fair market value on the date of death.1Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent This “step-up in basis” erases the taxable gain that built up during the original owner’s lifetime. If your parent bought a home for $100,000 and it was worth $500,000 on the date of death, your new basis is $500,000, not $100,000.
A professional appraisal is the evidence that locks in that higher figure. Without one, the IRS or a state tax agency may fall back on property tax assessments or other rough estimates that undervalue the home, and a lower basis means a bigger taxable gain when you sell. If you sell for $550,000 in the example above, a proper appraisal keeps your taxable gain at $50,000. Without it, you could be taxed on far more. At the 15 percent federal long-term capital gains rate that applies to most taxpayers, the difference between a $50,000 gain and a $450,000 gain is tens of thousands of dollars.
One exception to know about: if you gave appreciated property to someone who died within a year and then inherited it back, you take the decedent’s adjusted basis instead of a stepped-up basis.2Internal Revenue Service. Publication 551 – Basis of Assets
When the Basis Steps Down
The fair-market-value rule works both ways. If the property lost value during the original owner’s lifetime, your basis resets to the lower amount.1Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent Suppose a home was purchased for $400,000 but the local market declined and it was worth $300,000 at the date of death. Your basis is $300,000. If you later sell for $350,000, you owe tax on a $50,000 gain, even though the home never recovered to its original purchase price.
Documenting that lower value matters just as much. It stops the IRS from assuming an even lower figure that would inflate your future taxable gain further, and it helps you decide whether to keep, sell, or rent.
Community Property and the Double Step-Up
If you live in one of the nine community property states — Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, or Wisconsin — the appraisal carries extra weight.2Internal Revenue Service. Publication 551 – Basis of Assets When one spouse dies, the entire community property, not just the deceased spouse’s half, generally receives a new basis equal to the total fair market value at the date of death, provided at least half the value is includible in the deceased spouse’s gross estate.3Internal Revenue Service. Publication 555 – Community Property
If a couple bought a home as community property for $200,000 and it is worth $600,000 when one spouse dies, the surviving spouse’s basis in the entire home resets to $600,000. Without an appraisal documenting that value, the surviving spouse has no reliable way to claim the full benefit.
Supporting the Estate Tax Return
Estates above the federal exemption must file IRS Form 706, and roughly 18 states impose their own estate or inheritance taxes with far lower thresholds that can start in the tens of thousands of dollars for some heirs. An accurate appraisal is often the only way to determine whether a state filing is required at all.
Undervaluing property on these returns carries real consequences. The IRS imposes a 20 percent penalty on the underpaid tax when it finds a substantial valuation misstatement, meaning the reported value was 65 percent or less of the correct amount for estate tax purposes.4Office of the Law Revision Counsel. 26 USC 6662 – Imposition of Accuracy-Related Penalty on Underpayments For a gross valuation misstatement, the penalty doubles to 40 percent. A credible, independent appraisal is the executor’s best defense against both penalties and personal liability for a tax shortfall.
Reporting Your Basis to the IRS
When an estate files Form 706, the executor has a separate duty to report the value of each inherited asset to the IRS and to every beneficiary.5Office of the Law Revision Counsel. 26 USC 6035 – Basis Information to Persons Acquiring Property From Decedents This is done on Form 8971 and its Schedule A, which itemize each asset and the value reported on the estate tax return. The deadline is 30 days after the Form 706 filing deadline (including extensions) or 30 days after the return is actually filed, whichever comes first.
The basis a beneficiary reports on a future tax return generally cannot exceed the value reported on the estate tax return, a requirement known as basis consistency.1Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent A well-documented appraisal gives the executor a defensible number for Form 8971 and gives you confidence in the basis you later claim when you sell.
Dividing the Property Fairly Among Heirs
When multiple people inherit a single property, or when the estate contains a mix of real estate, investments, and cash, an appraisal provides the neutral number everyone needs to divide things equitably. If a will calls for an equal three-way split and the main asset is a house, there is no fair way to split it without knowing what the house is worth relative to the other assets.
This matters most when one heir wants to keep the family home and buy out the others. The appraisal sets the buyout price, so neither side has to rely on online estimates the other will dispute. Executors also use the appraisal to balance distributions, for example by giving one heir the house and another an equivalent amount in cash or investments.
The appraisal protects the executor too. Executors owe a fiduciary duty to manage assets competently and distribute them fairly. Relying on an independent valuation rather than an informal guess demonstrates good faith and reduces the chance of legal challenges from heirs who feel shortchanged.
Meeting Probate Court Inventory Requirements
Most probate courts require the executor to file a detailed inventory of everything the deceased person owned, including the fair market value of each asset at the date of death. Deadlines vary. Some states require the inventory within two or three months of the executor’s appointment; others allow up to six. Courts use these figures to oversee administration, set filing fees that often scale with estate value, and ensure creditors are paid before anything is distributed.
Many states require real property in the inventory to be appraised by a disinterested person, meaning someone with no financial stake in the outcome. Some courts appoint the appraiser; others accept valuations from qualified professionals chosen by the executor. Bank accounts and other assets with obvious value usually do not need a formal appraisal, but real estate almost always does. If the estate’s debts exceed its assets, the court relies on the appraised values to decide which property to liquidate and in what order. Without a credible appraisal, the court may delay closing the estate or refuse to authorize the final distribution.
What Makes an Appraisal the IRS Will Accept
Not every appraisal holds up to scrutiny. The IRS expects the person performing the valuation to have verifiable education and experience with the type of property being appraised. That generally means the appraiser has either completed professional-level coursework and has at least two years of relevant experience, or holds a recognized designation from a professional appraisal organization.6eCFR. 26 CFR 1.170A-17 – Qualified Appraisal and Qualified Appraiser Anyone barred from practicing before the IRS at any point in the previous three years is disqualified.
The report itself should include:
- A detailed description of the property, including location, size, physical condition, and any encumbrances such as easements or liens.
- The effective date of the appraisal, matching the date of death (or the alternate valuation date if the executor has elected one).
- The valuation method, typically a sales comparison approach that relies on recent comparable sales.
- Specific comparable sales data, including sale dates and prices.
- The appraiser’s qualifications, background, and professional designations.7Internal Revenue Service. IRM 4.48.6 – Real Property Valuation Guidelines
The IRS also expects a five-year sales history of the property, covering transactions before and after the valuation date, along with lease information if the property was rented. Keeping the appraisal thorough from the start is far easier than trying to reconstruct values years later during an audit.
Updating Insurance and Supporting a Loan
The appraisal you get for tax and estate purposes measures fair market value, meaning what a willing buyer would pay a willing seller. Insurance coverage is based on replacement cost, the amount it would take to rebuild the structure at current prices. Replacement cost is almost always higher because it reflects undiscounted retail pricing for materials and labor rather than a negotiated sale price.
Once title transfers to you, the previous owner’s policy no longer reflects your coverage needs and may rest on outdated figures that leave you underinsured. The appraisal gives you a clear starting point for updating the policy with your insurer.
If you plan to borrow against the property through a mortgage, refinance, or home equity line of credit, the lender will order its own appraisal to calculate a loan-to-value ratio. A recent estate appraisal speeds up that process and gives you a baseline expectation of the equity available.
When to Order the Appraisal
Order the appraisal as soon as possible after the date of death. A valuation performed close to that date is the easiest to defend because the appraiser can directly observe the property’s condition and use the most current comparable sales. Probate inventory deadlines, which range from roughly 60 days to six months depending on the state, provide a natural window, but there is no reason to wait.
If no appraisal was done at or near the date of death, a retrospective appraisal is still possible. An appraiser can reconstruct the value as of a past date by examining comparable sales, market conditions, and property records from that period. The IRS accepts retrospective valuations, and Publication 551 notes that if you did not receive a Form 8971 Schedule A from the executor, you can use the appraised value at the date of death for state inheritance or transmission tax purposes to determine your basis.2Internal Revenue Service. Publication 551 – Basis of Assets The further you get from the date of death, however, the harder it becomes for an appraiser to find reliable data, and the more vulnerable the valuation is to challenge.