Step-Up in Basis on Inherited Property in Oregon: Capital Gains Explained

Selling an inherited house is one of the most anxiety-inducing parts of settling an Oregon estate. Most beneficiaries assume they'll owe a substantial capital gains tax on a property their family may have owned for decades — especially when homes in Portland, Bend, or the Willamette Valley have appreciated dramatically.

The step-up in basis rule eliminates most of that exposure. But the size of the benefit depends critically on how the property was owned, and Oregon's property ownership laws create important differences between couples who moved here from community property states and those who always held property under Oregon's common-law rules.

What Is a Step-Up in Basis?

The tax basis of a property is what the IRS uses as the starting point for calculating gain when you sell. If you buy a house for $200,000 and sell it for $700,000, your gain is $500,000 and you owe capital gains tax on that amount.

Inherited property works differently. Under Internal Revenue Code Section 1014, when you inherit property, your basis is reset to the property's fair market value at the date of the owner's death. The historical cost — whatever the deceased person paid decades ago — becomes irrelevant.

If a Portland home was purchased in 1985 for $120,000 and its value at the date of death was $750,000, the heir inherits with a $750,000 basis. If they sell it immediately for $750,000, their capital gain is zero. If they sell it a year later for $800,000, they only owe capital gains tax on the $50,000 appreciation since death — not the full $630,000 gain that built up over 40 years.

This is the step-up in basis: the tax basis steps up to current fair market value at death, wiping out all prior unrealized gains.

How the Step-Up Works in Oregon

Oregon follows the federal step-up rule. When a beneficiary inherits property from an Oregon decedent, their basis for Oregon income tax purposes is the same stepped-up basis they have for federal purposes.

There is no Oregon-specific inheritance tax on the appreciation wiped out by the step-up. Oregon does not tax the step-up itself. The benefit applies equally to real property (homes, land, commercial buildings), personal property (vehicles, art, collectibles), and investment accounts (stocks, mutual funds) — though retirement accounts such as IRAs and 401(k)s are a notable exception and do not receive a step-up.

Selling an Inherited House in Oregon: The Tax Math

Here's a practical example for an Oregon estate:

A family home in Eugene was purchased in 1990 for $110,000. At the time of death, an independent appraisal establishes the fair market value at $580,000. The heir sells the home eight months later for $590,000.

• Historical cost: $110,000
• Stepped-up basis (fair market value at death): $580,000
• Sale price: $590,000
• Capital gain: $10,000 (the $590,000 sale price minus the $580,000 stepped-up basis)

The heir owes capital gains tax on $10,000, not on $470,000. The step-up eliminated nearly all of the taxable gain.

For the heir to owe no capital gains tax at all, they would need to sell at or below the stepped-up value — which is common when estates sell quickly after death, since there's often little time for additional appreciation.

The Critical Role of a Professional Appraisal

The stepped-up basis equals the property's fair market value at the date of death — and that value must be documented. For real estate, this requires a qualified appraisal by a state-certified appraiser, valued as of the date of death (not the date of sale).

Getting this appraisal done promptly is important. Waiting months or years makes it harder to establish what the property was worth on the specific date of death. The IRS and Oregon Department of Revenue accept retroactive appraisals, but appraisers must rely on historical market data rather than current conditions, and the documentation burden increases with time.

For investment accounts, the step-up basis is typically the closing price of each security on the date of death, available from brokerage records.

Tenancy by the Entirety: Oregon's Common-Law Default

Most Oregon married couples own their home as tenants by the entirety — the default for real property acquired during marriage under ORS 93.180. This is a common-law property ownership structure, not community property.

When the first spouse dies, the surviving spouse automatically inherits the deceased spouse's half of the property through operation of law, typically without going through probate. But here's the catch: only the deceased spouse's half of the property receives a step-up in basis. The surviving spouse's original half of the property retains its original cost basis from when the couple first purchased it.

Example: A couple bought a home in 1998 for $200,000 (total cost, so $100,000 per spouse's half). By the time the first spouse dies in 2026, the home is worth $900,000. The surviving spouse automatically inherits the full property, but their basis is:

• Deceased spouse's half: stepped up to $450,000 (half of $900,000 fair market value)
• Surviving spouse's original half: still $100,000 (original cost basis, no step-up)
• Total basis: $550,000

If the surviving spouse then sells the home for $900,000, they owe capital gains tax on $350,000 ($900,000 minus $550,000). They got a partial benefit — not the full benefit.

The Double Step-Up for Community Property

Oregon is a common-law property state, but it borders several community property states: California, Washington, Nevada, and Idaho. Many Oregon families moved here from one of these states, carrying assets acquired under community property rules.

Under the Uniform Disposition of Community Property Rights at Death Act — which Oregon has adopted — the community property status of imported assets is preserved if the couple hasn't intentionally severed it. Community property assets remain community property in Oregon.

For tax purposes, this distinction is enormous. Under IRC Section 1014(b)(6), community property assets receive a double step-up in basis: both halves of the property — the deceased spouse's half and the surviving spouse's half — are stepped up to fair market value at the date of death.

Using the same example above but treating the home as community property:

• Total fair market value at death: $900,000
• Both halves stepped up
• Total new basis: $900,000

If the surviving spouse sells immediately at $900,000, the capital gain is zero. The double step-up eliminates all unrealized gains on both halves of the property.

The difference between the tenants by the entirety outcome ($350,000 capital gain) and the community property outcome ($0 capital gain) on this single property is potentially tens of thousands of dollars in federal and Oregon capital gains taxes.

Preserving Community Property Status in Oregon

This benefit only applies if the couple can demonstrate that the property retained community property status when they moved to Oregon. The primary danger is commingling — mixing community property funds with separate (common-law) property in a way that destroys the ability to trace which assets are which.

If a couple sold their California home (community property) and deposited the proceeds into a joint Oregon bank account that also contained other funds, the community property status of those proceeds may be destroyed. The double step-up goes with it.

Executors and CPAs handling Oregon estates where the decedent previously lived in a community property state should conduct a forensic accounting review of all significant assets. Properly documented community property assets that generate a double step-up can produce enormous tax savings for beneficiaries selling inherited property.

Inherited Retirement Accounts: No Step-Up

One important exception: inherited IRAs, 401(k)s, 403(b)s, and other tax-deferred retirement accounts do not receive a step-up in basis. The basis in these accounts is effectively zero — when the beneficiary takes distributions, the full amount is taxable as ordinary income.

Under post-SECURE Act rules, most non-spouse beneficiaries must deplete inherited retirement accounts within 10 years. Planning for the income tax impact of those distributions — particularly in high-income years — is an important part of managing an inherited estate.

Next Steps After Inheriting Oregon Property

If you've inherited property in Oregon and are deciding whether to sell:

1. Get a date-of-death appraisal as soon as possible while the market evidence is fresh.
2. Identify how the property was held — common-law joint tenancy, community property, or in a trust — since the ownership structure determines how much of the step-up you receive.
3. Check for community property status if the decedent previously lived in California, Washington, Nevada, Idaho, or another community property state.
4. Wait until estate taxes and creditors are settled before selling. The personal representative generally cannot list property for sale until they have Letters Testamentary from the court, and sale proceeds must satisfy any Medicaid estate recovery claims or other priority creditors before distribution to heirs.

Selling inherited Oregon property involves layered obligations: court authority, Medicaid recovery clearance, and accurate capital gains reporting. The Oregon Final Tax & Estate Tax Guide covers the property transfer and tax-reporting sequence alongside the estate tax and income tax obligations personal representatives face.

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