Oregon Estate Tax: $1M Exemption (Lowest in Country)

Oregon imposes an estate tax on every estate exceeding $1 million in total value. The $1 million exemption is the lowest in the country — lower than any other state with an estate tax, lower than the District of Columbia, and dramatically lower than the federal exemption of approximately $13.61 million per person. Oregon's threshold was set when Measure 73 and subsequent legislation restructured the state's estate tax in 2006, and it has never been adjusted for inflation. In 2006 dollars, $1 million bought significantly more than it does today. In 2026 dollars, $1 million is a paid-off house in Portland and a retirement account.

This matters because Oregon's estate tax is a true "cliff" tax only at the perception level — technically the rates are graduated, starting at 10% on the first dollar above $1 million and rising to 16% on amounts above $9.5 million. But the entire estate is subject to recalculation, and the effective rate on estates just above the exemption can be severe relative to the amount by which they exceeded it. An estate of $1,050,000 does not owe tax on just $50,000; the tax is calculated on a rate schedule that applies to the full taxable estate, then reduced by a credit that effectively exempts the first $1 million. The result is a marginal rate that makes every dollar near the threshold expensive.

Oregon's rate structure: how the tax is actually calculated

Oregon's estate tax uses a graduated rate schedule codified in ORS 118.010–118.300. The rates apply to the Oregon taxable estate (gross estate minus allowable deductions):

• $1,000,000 – $1,500,000: 10%
• $1,500,000 – $2,500,000: 10.25%
• $2,500,000 – $3,500,000: 10.5%
• $3,500,000 – $4,500,000: 11%
• $4,500,000 – $5,500,000: 11.5%
• $5,500,000 – $6,500,000: 12%
• $6,500,000 – $7,500,000: 13%
• $7,500,000 – $8,500,000: 14%
• $8,500,000 – $9,500,000: 15%
• $9,500,000 and above: 16%

The calculation produces the tentative tax, which is then reduced by a credit that zeroes out tax on the first $1 million. The net result: estates at exactly $1 million owe nothing. An estate of $1,500,000 owes approximately $50,000 (10% on the $500,000 above the exemption). An estate of $2,500,000 owes approximately $152,500. An estate of $5,000,000 owes approximately $416,500.

The top marginal rate of 16% applies only to estates exceeding $9.5 million — a small number of Oregon estates. But the 10–11% rates that apply to estates between $1 million and $4.5 million affect a much larger population, and these are the estates where the tax is most consequential relative to total wealth.

Why $1 million catches more estates than you think

The Oregon taxable estate includes everything in the federal gross estate for Oregon residents: real property anywhere in the world, bank and brokerage accounts, retirement accounts (IRAs, 401(k)s, 403(b)s at full value), life insurance proceeds if the decedent held incidents of ownership under IRC section 2042, business interests, vehicles, personal property, and revocable trust assets under IRC section 2038.

Consider what a typical Oregon retiree's estate looks like. A paid-off home in Portland's inner eastside neighborhoods or Lake Oswego: $550,000 to $900,000. A 401(k) or IRA accumulated over a 30-year career: $300,000 to $800,000. A small brokerage account and bank savings: $50,000 to $200,000. A term life insurance policy that seemed modest when purchased: $250,000 to $500,000.

Add those up. A homeowner with $650,000 in home equity, $400,000 in retirement accounts, $100,000 in savings, and a $250,000 life insurance policy has a $1,400,000 estate — $400,000 over the Oregon exemption, triggering approximately $40,000 in Oregon estate tax. This is not a wealthy person by most definitions. This is a retired teacher or electrician who paid off their mortgage and contributed to their 401(k) for three decades.

No portability: why married couples face a structural disadvantage

The federal estate tax allows portability of the unused exemption between spouses under IRC section 2010(c)(4). If the first spouse dies with a $4 million estate and a $13.61 million exemption, the unused $9.61 million can be transferred to the surviving spouse, giving the survivor an effective exemption of approximately $23.22 million. This was enacted by the American Taxpayer Relief Act of 2012 and is one of the most significant simplifications in modern estate tax law.

Oregon does not offer portability. Each spouse has their own $1 million exemption, and any unused portion of the first spouse's exemption is lost forever if not used at their death. This creates a structural planning problem: if the first spouse leaves everything to the surviving spouse (qualifying for the unlimited marital deduction under IRC section 2056 and ORS 118.010), the first spouse's $1 million Oregon exemption is wasted. When the surviving spouse dies with the combined estate, only one $1 million exemption is available — meaning $1 million of sheltering capacity was permanently forfeited.

This is the primary reason credit shelter trusts (also called bypass trusts or B trusts) remain essential in Oregon estate planning, even though federal portability has made them optional for federal estate tax purposes in most states. In Oregon, a properly funded bypass trust at the first death is worth up to $1 million in additional exemption — potentially saving $100,000 or more in Oregon estate tax at the second death.

The step-up in basis still applies — partially offsetting the estate tax

Oregon's estate tax is levied on estate value, but heirs still receive the step-up in basis under IRC section 1014 for capital assets. This creates a partial offset: the estate pays Oregon tax on the full value, but the heir inherits with a basis equal to fair market value at death and can sell without capital gains tax on pre-death appreciation.

For a $1,500,000 estate with $400,000 in unrealized capital gains on stock and real estate, the Oregon estate tax is approximately $50,000 — but the step-up eliminates approximately $90,000 in potential capital gains tax (at a combined 22.4% federal and Oregon rate on long-term gains). The step-up more than offsets the Oregon estate tax in this scenario. However, this offset only applies to capital assets — retirement accounts are income in respect of a decedent (IRD) under IRC section 691, receive no step-up, and are still included in the Oregon taxable estate at full value.

The retirement account double-taxation problem

Retirement accounts — traditional IRAs, 401(k)s, 403(b)s — create a particularly painful tax situation in Oregon. They are included in the Oregon taxable estate at full value, contributing to the estate tax calculation. And they are taxed again as ordinary income to the beneficiary upon withdrawal, with no step-up in basis under IRC section 691.

Under the SECURE Act 2.0 ten-year rule (IRC section 401(a)(9)(H)), most non-spouse beneficiaries must empty inherited retirement accounts within 10 years of the account owner's death. This compresses the income recognition into a window that can push beneficiaries into higher federal and Oregon income tax brackets.

The IRC section 691(c) deduction allows the beneficiary to deduct the federal estate tax attributable to the IRD on their income tax return. But this deduction only applies to federal estate tax actually paid — and most Oregon estates are well below the federal exemption. For an Oregon estate of $3 million, there is no federal estate tax, no IRC section 691(c) deduction, and no income tax offset for the Oregon estate tax paid on the retirement accounts. The retirement accounts are taxed twice — once by Oregon at the estate level and once by both federal and Oregon at the income level — with no deduction to bridge the gap.

Worked example: $3.8 million Oregon estate

Robert, age 81, dies in 2026 as a resident of Lake Oswego, Oregon. His wife Patricia predeceased him in 2022. Robert's estate passes to his two adult children, Sarah (age 54, marketing director in Portland earning $145,000) and James (age 51, software engineer in Bend earning $190,000).

• Primary residence (Lake Oswego): $875,000 (basis: $280,000)
• Brokerage account (diversified ETFs): $620,000 (basis: $340,000)
• Traditional IRA (rollover from 401(k)): $780,000 (entirely pre-tax)
• Roth IRA: $185,000
• Bank accounts and CDs: $140,000
• Life insurance (Robert was policy owner): $200,000
• Total gross estate: $3,800,000

Oregon estate tax calculation

Assuming $50,000 in allowable deductions (funeral, administration, debts), the Oregon taxable estate is $3,750,000. Applying Oregon's graduated rate schedule:

• $1,000,000 – $1,500,000 at 10% = $50,000
• $1,500,000 – $2,500,000 at 10.25% = $102,500
• $2,500,000 – $3,500,000 at 10.5% = $105,000
• $3,500,000 – $3,750,000 at 11% = $27,500

Total Oregon estate tax: approximately $285,000. This is 7.6% of the total estate — a meaningful reduction in what Sarah and James inherit. No federal estate tax is owed (the estate is well below the federal exemption under either TCJA extension or sunset scenario).

What each asset costs the heirs after all taxes

Primary residence: Receives the step-up to $875,000 under IRC section 1014. If Sarah and James sell at market value, zero capital gains tax. The $595,000 in unrealized appreciation during Robert's lifetime is eliminated. Oregon estate tax still applied to the full $875,000 value.

Brokerage account: Receives the step-up to $620,000. Sale at market value produces zero capital gains tax. The $280,000 in unrealized gains is eliminated. Oregon estate tax applied to the full $620,000 value.

Traditional IRA ($780,000 split equally): No step-up — IRD under IRC section 691. Each child inherits $390,000 and must withdraw it within 10 years under the SECURE Act. Sarah, at $145,000 base salary, adds $39,000 per year in IRA withdrawals — pushing her combined federal and Oregon marginal rate to approximately 34% (22% federal + 8.75% Oregon + 3.8% NIIT on some investment income). Total income tax on her half: approximately $132,600 over 10 years. James, at $190,000, faces a combined marginal rate of approximately 38% (24-32% federal + 8.75% Oregon). Total income tax on his half: approximately $148,200 over 10 years. Combined IRA income tax for both children: approximately $280,800.

Roth IRA ($185,000): No Oregon estate tax benefit (it's still included in the taxable estate), but withdrawals are income-tax-free to the beneficiaries. The Roth is the most tax-efficient inherited asset — no estate tax reduction, but no income tax either. Under the SECURE Act, non-spouse beneficiaries must still empty the inherited Roth within 10 years, but the distributions are not taxable.

Life insurance ($200,000): Included in the gross estate under IRC section 2042 because Robert owned the policy. Not subject to income tax (life insurance proceeds are income-tax-free under IRC section 101(a)), but fully subject to Oregon estate tax. If Robert had transferred the policy to an irrevocable life insurance trust (ILIT) more than three years before death (avoiding the IRC section 2035 clawback), the $200,000 would have been excluded from the estate — reducing Oregon estate tax by approximately $21,000.

Total tax burden on the $3,800,000 estate:

• Oregon estate tax: $285,000
• Income tax on inherited IRA (both children combined): $280,800
• Capital gains tax on stepped-up assets: $0
• Total: approximately $565,800 — 14.9% of the gross estate

Oregon's natural resource credit

Oregon provides a special credit against estate tax for qualifying natural resource property under ORS 118.140. This applies to farms, forestland, and commercial fishing operations that meet specific criteria: the property must have been owned and operated by the decedent or family members, and the heirs must continue the qualifying use for at least five years after death (or repay the credit).

The natural resource credit can reduce the Oregon estate tax on qualifying property by up to 100% of the tax attributable to that property. For farming families in the Willamette Valley or ranching operations in Eastern Oregon, this credit can be the difference between the heirs keeping the operation and being forced to sell land to pay estate tax. However, the credit requires careful advance planning — the property must meet qualifying-use requirements, and the five-year continuation requirement binds the heirs to operational commitments that may not align with their plans.

Planning strategies specific to Oregon's $1 million threshold

Credit shelter trust (bypass trust): the essential Oregon tool

Because Oregon lacks portability, a credit shelter trust funded at the first spouse's death is the single most impactful planning strategy for married couples. The first spouse's will or revocable trust directs up to $1 million into a bypass trust. The surviving spouse can receive income from the trust, principal distributions for health, education, maintenance, and support, and even serve as trustee — but the trust assets are excluded from the surviving spouse's estate at their death.

Without the trust: both spouses' assets combine in the surviving spouse's estate with only one $1 million exemption. With the trust: the first spouse's $1 million exemption shelters assets permanently, and the surviving spouse's own $1 million exemption covers the remainder. Effective combined exemption: $2 million instead of $1 million. On a $3 million combined estate, this saves approximately $100,000 in Oregon estate tax.

Lifetime gifting: Oregon has no gift tax

Oregon does not impose a state gift tax. The federal annual gift tax exclusion ($18,000 per recipient in 2024, indexed for inflation) allows systematic estate reduction without gift tax consequences. A couple with two children and four grandchildren can gift $216,000 per year ($18,000 × 6 recipients × 2 donors) without using any federal lifetime gift tax exemption.

Over 10 years, this removes $2.16 million from the estate — plus all future appreciation on the gifted assets. For an estate currently at $2.5 million, a decade of maximum annual gifting could reduce the Oregon taxable estate below the $1 million exemption entirely. The key constraint: gifts must be completed transfers with no retained interests (otherwise they are pulled back into the estate under IRC sections 2036–2038).

Irrevocable life insurance trust (ILIT)

Life insurance proceeds owned by the decedent are included in the gross estate under IRC section 2042 and subject to Oregon estate tax. For Oregon residents, even a modest $250,000 term policy can push an estate over the $1 million threshold. Transferring the policy to an ILIT removes the proceeds from the estate — but the transfer must occur more than three years before death to avoid the IRC section 2035 look-back. New policies can be purchased directly by the ILIT, avoiding the three-year rule entirely.

Roth conversions: reposition from estate-taxed-and-income-taxed to estate-taxed-only

Converting traditional IRA funds to a Roth IRA does not reduce the Oregon estate tax — both account types are included in the gross estate at full value. But it eliminates the income tax on distributions to beneficiaries. On Robert's $780,000 traditional IRA, the combined income tax to his children was approximately $280,800. If Robert had converted $390,000 to a Roth over several years before death (paying income tax himself in lower brackets during retirement), his children would have inherited a partially Roth portfolio with significantly lower total tax.

The trade-off: the conversion reduces the estate value (because Robert pays income tax from estate assets), which slightly reduces Oregon estate tax. And the inherited Roth distributions are tax-free. This repositioning strategy is particularly valuable in Oregon because the estate tax threshold is so low — the estate is likely subject to Oregon estate tax regardless, so eliminating the income tax layer on retirement accounts is the higher-impact move.

Non-resident exposure: Oregon-situs property

Non-residents of Oregon are subject to Oregon estate tax on real property and tangible personal property located in Oregon. A California resident who owns a vacation home in Bend valued at $600,000 within a $5 million total estate must file an Oregon estate tax return. Oregon calculates the tax on the full estate as if the decedent were an Oregon resident, then prorates the tax based on the ratio of Oregon-situs property to the total estate.

For the California resident: Oregon tax on a $5 million estate would be approximately $416,500. The proration ratio is $600,000 / $5,000,000 = 12%. Oregon estate tax owed: approximately $49,980. This surprises many non-resident property owners who assume Oregon's estate tax only applies to Oregon residents.

Key takeaways

• Oregon's $1 million estate tax exemption is the lowest in the country and has not been adjusted for inflation since 2006. Estates that feel middle-class — a paid-off home, retirement accounts, and a life insurance policy — routinely exceed the threshold.
• Oregon does not offer portability of the unused exemption between spouses. A credit shelter trust funded at the first spouse's death is essential to preserve both spouses' $1 million exemptions — potentially saving $100,000 or more in Oregon estate tax.
• Retirement accounts face double taxation in Oregon: included in the taxable estate at full value (triggering estate tax), then taxed as ordinary income to beneficiaries under the SECURE Act ten-year rule. The IRC section 691(c) deduction provides no relief when no federal estate tax is owed.
• The step-up in basis under IRC section 1014 still applies to capital assets inherited from Oregon estates, partially offsetting the estate tax by eliminating capital gains on pre-death appreciation. But this offset does not extend to retirement accounts or annuities classified as IRD.
• Oregon has no gift tax. Systematic lifetime gifting using the federal annual exclusion ($18,000 per recipient in 2024) can reduce a taxable estate below the $1 million threshold over time — a straightforward strategy that requires only discipline and completed transfers.
• Non-residents who own Oregon real property are subject to Oregon estate tax on a prorated basis. A vacation home in Bend or a rental property in Portland can trigger a filing obligation and a meaningful tax bill even for residents of states with no estate tax.