Step-Up in Basis: Inherited Assets, Value at Death, and Tax Records

What “step-up in basis” means

At its core, a step-up in basis changes the starting point for measuring gain or loss on property that passes from a decedent to an heir. For federal income-tax purposes, inherited property generally receives a new cost basis equal to its fair market value (FMV) on the decedent’s date of death—commonly called the date-of-death value. That means if the heir sells the property immediately for that same FMV, there is typically little or no recognized capital gain for income-tax purposes. If the heir later sells for a higher amount, capital gain is measured from the date-of-death FMV to the sale price.

Example: A decedent bought stock for $10,000 years ago that was worth $100,000 at death. If an heir inherits that stock, the heir’s basis is generally the $100,000 FMV at date of death. If the heir sells the stock later for $110,000, taxable gain is $10,000 (sale price minus stepped-up basis), not $100,000.

Why this matters: Stepping the basis to FMV at death can substantially reduce taxable capital gains for beneficiaries who sell inherited property soon after the estate is settled. It also affects the calculation of basis if beneficiaries hold property for years before selling.

Note on alternate valuation: For estate tax purposes only, and subject to rules described in Form 706 instructions, an estate may elect an alternate valuation date (six months after the date of death) under certain conditions. An alternate valuation, when permitted and chosen, can affect estate tax calculations and the values reported on Form 706; it can also affect the basis used by heirs when the alternate valuation is properly applied. See Form 706 instructions for the specific conditions and procedures (IRS Form 706 instructions: IRS guidance

Separate inheritance from a lifetime gift

An important distinction: the basis treatment for property received as an inheritance is generally different from property received as a lifetime gift.

• Lifetime gifts: When someone receives property as a gift during the donor’s life, the recipient generally takes the donor’s basis (sometimes adjusted) for income-tax purposes. That is commonly known as carryover basis. If the donor’s basis was low, the donee will have the same lower basis and potentially more capital gain on a later sale.

• Inheritances: Property that passes at death generally receives a stepped-up basis to FMV at death (with certain exceptions). In short, inheritances typically "reset" the basis to the date-of-death FMV, while gifts typically do not.

Why the distinction matters: The timing of transfer can have a large effect on later income taxes. A lifetime gift of appreciated property preserves the transferor’s low basis and can create larger capital gains for the donee upon later sale. In contrast, an inheritance usually provides a fresh basis equal to FMV at death, reducing taxable gain.

Important practical issues:

• Identify whether the property was transferred before death (a gift) or as part of the decedent’s estate (inheritance). Titles, deeds, beneficiary designations, trust terms, and account documents will show how and when the property passed.

• Gifts made within three years of death may have special estate-tax reporting effects in the estate tax context; those concerns are addressed on Form 706 and in estate tax guidance (see Sources).

• For jointly owned property and community-property states, rules may vary. For example, in community-property states, a deceased spouse’s half of community property often receives a stepped-up basis, which can create different results than a lifetime gift analysis. Check the relevant guidance when property is jointly held.

Identify date-of-death value and valuation records

Accurate valuation at the date of death is central to establishing the stepped-up basis. The FMV on that date is what the heir’s basis commonly becomes. Therefore, assembling and preserving valuation records should be an early priority for executors and beneficiaries.

What counts as acceptable evidence of value:

• Broker or market quotes showing the value of publicly traded securities on the date of death.

• Real estate appraisals prepared by qualified appraisers, with signed appraisals dated and describing the property, inspection details, assumptions, and valuation methods.

• Statements of value for business interests, often produced by valuation specialists, CPAs, or accredited appraisers. Business valuations should explain methodology (income, market, or asset approaches), assumptions, and the valuator’s qualifications.

• Documentation of prices and terms for recent comparable sales for real property or business interests.

• Closing statements, deeds, mortgage payoff statements, and title reports when real property is sold or transferred around the date of death.

• Account statements showing cash, bank balances, and other assets’ reported values.

Key recordkeeping tips:

• Keep originals or scanned copies of appraisals, broker statements, and valuation reports with the estate or trust records.

• Date and label each document clearly to show it pertains to the decedent’s date of death.

• If valuations are later challenged for any reason, consistent contemporaneous records are the most persuasive evidence.

When an estate files Form 706, valuations used on that return are particularly significant and must follow the instructions for reporting values (see the Form 706 instructions: IRS guidance The estate tax return includes detailed schedules that list assets and their values; the instructions also discuss the alternate valuation date, if the estate elects it (available in certain circumstances). The valuations on Form 706, when properly prepared and accepted, provide strong support for the basis used by beneficiaries.

Connect later sale to basis and capital-gain questions

Once an heir accepts property with a stepped-up basis, the later sale is the event that typically triggers income-tax reporting. Capital gain or loss on that sale is generally calculated by subtracting the heir’s basis from the sale proceeds, less any allowable selling expenses and adjustments.

Steps to compute gain or loss:

• Start with the heir’s basis, normally the FMV at date of death (or alternate valuation date if elected correctly).

• Subtract allowable adjustments to basis (for example, certain estate-paid expenses that increase basis, or improvements that increase basis for real property).

• Subtract the adjusted basis from the sale proceeds (net of selling costs). If proceeds exceed basis, there is capital gain; if proceeds are less than basis, there is a capital loss.

• Determine whether gain is short-term or long-term for rate purposes. Generally, inherited property held by a beneficiary is considered long-term property, regardless of how long the beneficiary actually holds it. That means capital gains are usually taxed at long-term rates, which are often lower than short-term rates.

Special considerations:

• If the estate used the alternate valuation date (six months after death) on Form 706 where allowed, the basis may be the FMV on that later date for property included in the alternate valuation election. When an alternate valuation is in effect, the value used for basis must be consistent with what the estate reported for estate tax purposes.

• If the estate makes distributions to beneficiaries before the estate’s assets are fully valued or before final reports, keep careful records showing the date and value on the date of distribution. Beneficiaries will need those records to establish basis.

• For fractional interests, each co-owner’s basis equals his or her share of the stepped-up FMV unless a different allocation is established by the estate or trust.

When and how to report sales:

• Beneficiaries report sales of inherited property on their federal income tax returns using Schedule D and Form 8949 where applicable. The basis and date of acquisition should be documented on those forms and supported by estate files.

• Estates and trusts also may sell assets before distribution. In those cases, the estate or trust reports gain or loss on its own return (Form 1041) and will have different basis and holding-period rules.

Handle trust, retirement-account, and asset-specific facts carefully

Many estates involve trust arrangements, retirement accounts, and asset types (real estate, business interests, depreciable property, collectibles) that have unique rules for basis and income-tax treatment. Here are important points for common categories:

Trusts

• Whether property in a trust receives a step-up depends on the trust’s terms, the timing and nature of transfers, and who the grantor and beneficiaries are. Property in a revocable living trust typically receives a full step-up at the grantor’s death because the grantor usually retains ownership until death. Irrevocable trusts may have different results depending on whether assets are included in the decedent’s estate for estate-tax purposes.

• Trust accounting and trustee records should clearly document the date-of-death valuations used and how assets were allocated among beneficiaries. These records are the primary support for beneficiaries’ basis.

Retirement accounts (IRAs, 401(k)s, pensions)

• Employer-sponsored retirement accounts and traditional IRAs generally consist of pre-tax contributions and accumulated earnings. For income-tax purposes, distributions from traditional IRAs/401(k)s are taxed as ordinary income to the beneficiary when distributed (unless non-deductible basis exists in the account). In other words, inherited pre-tax retirement accounts do not get a step-up in basis that converts ordinary income to capital gain; the tax rules for retirement accounts are separate from the step-up concept that applies to most non-retirement assets.

• Roth IRAs typically hold after-tax amounts and, depending on the account’s history and the beneficiary’s actions, distributions may be tax-free. Basis rules for Roths differ from basis rules for inherited securities or real property.

• Beneficiaries should review plan and account documents and consider distribution rules and required minimum distribution (RMD) options for inherited retirement accounts. Those rules affect timing of taxable income and may affect estate planning.

Depreciable property and carryover of basis adjustments

• For property used in a trade or business or for rental property, the estate or beneficiary must track depreciation allowed or allowable. When property passes at death, the step-up affects the un-depreciated basis for the new owner, but prior years’ depreciation in the hands of the decedent does not carry forward.

• If the beneficiary later sells depreciable property, there may be ordinary income recapture under Section 1250 (for real property) or Section 1245 (for personal property) rules. Those recapture rules depend on the nature of the asset and its depreciation history.

Business interests and closely held entities

• Valuing closely held business interests is often complex. Professional business valuation reports are common and sometimes necessary to support the basis used for estate tax reporting and for beneficiaries’ basis positions.

• Shareholder agreements, buy-sell agreements, and restrictions on transfer can affect marketability and thus value. Well-documented valuations that explain discounts or premiums are important to justify a particular FMV at death.

Real property

• Mortgages, encumbrances, and other claims against property should be fully documented. FMV opinions should state whether the value is for the property free and clear or subject to mortgages.

• Improvements made after death that increase value adjust the basis for the heir. Closing statements and contractor receipts help document improvements that raise basis.

Community property and jointly owned assets

• State law affects the taxation of jointly held property. In community-property states, one spouse’s death may result in a step-up for the entire property or only the decedent’s half, depending on facts and local law. For jointly held tenancy by the entirety or joint tenants with rights of survivorship, the step-up can depend on whether entire ownership passes to the surviving owner and how much of the property was owned by the decedent at death.

• Because state ownership rules affect FMV allocation and who receives the stepped-up basis, consult carefully documented title and ownership records and maintain clear notes in the estate files.

Connect Form 706 and consistent-basis records where applicable

Form 706 is the Estate (and Generation-Skipping Transfer) Tax Return. When an estate must file Form 706, the valuations reported on the return and the attachments are central to establishing the value of estate assets. Even when an estate is not large enough to require Form 706, similar valuation principles apply for establishing basis.

When Form 706 is filed

• Estates that meet the filing threshold for federal estate tax must file Form 706. Form 706 schedules list assets and the FMV used for estate tax purposes. The instructions for Form 706 explain required attachments, who must sign, and the valuation rules and elections available to the estate (see the Form 706 instructions: IRS guidance

• When Form 706 is submitted, the values and documentation attached become part of the estate record. If the IRS reviews or questions the estate’s valuation, the Form 706 and its attachments are the primary source of the estate’s valuation position.

• If the estate elects the alternate valuation date under the rules on Form 706, and that election is valid, the alternate amount can affect both estate tax calculations and the basis heirs take.

Consistent-basis records and reliance on Form 706

• Beneficiaries and fiduciaries should keep a full copy of any filed Form 706 and all attached valuation reports and appraisals. Those documents substantiate the basis positions beneficiaries later report on their income tax returns.

• If no Form 706 is required or filed, assemble similar valuation documentation and preserve it in the estate or trust file. Even without a federal estate tax return, state filing thresholds and probate filings may require documentation; in any event, having a contemporaneous valuation record protects beneficiaries against future disputes.

• If differences arise between values reported on state probate inventories and values used for federal income tax basis, reconcile and note the reasons. Consistency and clear contemporaneous documentation reduce the risk of later questioning.

Practical recordkeeping checklist and examples

A concise checklist helps executors and beneficiaries preserve the items needed to prove date-of-death values and basis in future tax contexts. Store paper copies and scanned backups, and label files clearly.

Essential records to keep:

• Death certificate and basic estate documents (will, trust, court probate filings).

• A complete list of estate assets and liabilities as of date of death.

• Broker statements and trade confirmations for securities showing the price on the date of death.

• Signed, dated appraisals for real property and qualified appraisals for business interests. Include the appraiser’s qualifications and methodology.

• Closing statements, deeds, title reports, and mortgage documents for real property.

• Business valuation reports, including assumptions, discount analyses, and market comparisons.

• Account statements for bank and brokerage accounts around the date of death.

• Copies of Form 706 and all attachments, if filed, including any elections and explanations.

• Copies of trust agreements, trustee distributions, and trust accountings.

• Records of requests for and receipts of distributions to beneficiaries, including dates and values at the time of distribution.

• Documentation of estate expenses that may increase basis (for example, certain expenses paid by the estate that benefit property).

Example scenarios

• Publicly traded stock: Keep the broker statement dated on the date of death showing the closing price. Save trade confirmations for later sales.

• Rental property: Obtain a professional appraisal, preserve leases and expense records, and keep record of improvements that occur after death to adjust basis accordingly.

• Closely held business: Obtain an independent business valuation, retain the valuation report, and document the methods used and any discounts for lack of marketability or minority interest.

How to compute basis step-up (basic formulas and examples)

A few concise formulas and examples make the mechanics clear.

Basic formula for gain on sale:

• Gain (or loss) = Sale Price (net of selling costs) − Adjusted Basis

Adjusted basis for inherited property:

• Adjusted basis = FMV at date of death (or FMV at alternate valuation date, if applicable and elected) + Increases to basis (e.g., capital improvements) − Decreases to basis (rare for inherited property; depreciation taken by the estate prior to distribution could affect the calculation).

Example 1 — Stock:

• FMV at date of death: $200,000 (this becomes beneficiary’s basis).

• Sale price three years later: $260,000.

• Selling costs: $5,000.

• Adjusted basis = $200,000.

• Net sales proceeds = $260,000 − $5,000 = $255,000.

• Gain = $255,000 − $200,000 = $55,000 (generally long-term capital gain).

Example 2 — Real property with improvements:

• FMV at death: $300,000 (beneficiary’s starting basis).

• Beneficiary later invests $20,000 in capital improvements.

• Later sale net of selling expenses: $350,000.

• Adjusted basis = $300,000 + $20,000 = $320,000.

• Gain = $350,000 − $320,000 = $30,000.

Special situations and practical cautions

Alternate valuation date election

• The estate may, under certain conditions described in Form 706 instructions, elect an alternate valuation date—generally six months after death—to value assets for estate tax purposes. That election can reduce estate tax if asset values decline during that six-month window and the election reduces the gross estate and estate tax liability. If an alternate valuation election is properly made, the values on that date may affect basis for the assets included in the election. Review the Form 706 instructions for the exact conditions and consequences (IRS guidance

Partial interests and fractional allocations

• When beneficiaries receive fractional interests in an asset, each beneficiary’s basis is generally the fraction of the stepped-up value equal to the share received, unless another allocation is made by the estate. Document how the allocation was calculated.

Pre-death gifts and three-year reporting issues

• Gifts made shortly before death can have reporting implications for the estate tax return. Some gifts may be included in the gross estate for estate tax purposes if given within the special lookback period or under other inclusion rules explained in Form 706 instructions.

Consistent valuations across filings

• If the estate reports values on Form 706 (where required) that differ materially from values used by beneficiaries to calculate basis, keep written explanations and cross-references showing why values differ (for example, because beneficiary received a cash distribution before the Form 706 was prepared). Consistent records reduce confusion.

When to seek professional valuation or tax advice

• Complex business valuations, unusual assets, or conflicts among beneficiaries about value generally call for qualified appraisers and tax advisors. Professional valuation letters and appraisals are commonly attached to Form 706 and retained in the estate file.

Summary and next steps for executors and beneficiaries

• Identify which assets passed at death and which passed by lifetime gift. For each inherited asset, collect contemporaneous evidence of FMV on date of death.

• Preserve broker statements, appraisals, valuation reports, deeds, title work, closing statements, account statements, and a copy of Form 706 and attachments if filed.

• For later sales, compute gain or loss using the FMV-at-death basis, adjust for capital improvements, and apply appropriate holding-period rules (inherited assets are generally treated as long-term).

• For retirement accounts and some trust situations, the income-tax treatment differs: retirement accounts generally produce ordinary-income taxes on distributions rather than capital gains treatment based on step-up.

• When in doubt, document decisions, keep copies of appraisals and valuations, and consult valuation professionals and tax advisers for complex assets or when Form 706 is required.

H2 Sources

• Frequently Asked Questions on Estate Taxes, Internal Revenue Service: IRS guidance

• Instructions for Form 706, United States Estate (and Generation-Skipping Transfer) Tax Return, Internal Revenue Service: IRS guidance

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