What the rule says
Oregon imposes a state estate tax under Or. Rev. Stat. § 118.010 et seq. with the lowest threshold of any state estate tax in the country:
Lowest threshold nationally
The Oregon estate tax exclusion is $1 million per individual — significantly lower than: - Federal estate tax: ~$13.99 million per individual (2026, indexed) - Connecticut: $13.99 million (federal-conformed) - New York: $7.16 million - Illinois: $4 million - Minnesota: $3 million - Massachusetts: $2 million
Oregon's $1 million threshold has not been indexed for inflation and has remained at that level for many years. With Oregon home values, retirement accounts, and other assets, many middle-class Oregon families exceed $1 million in combined assets.
No portability
Oregon does not recognize federal portability of unused exclusion between spouses. Each spouse's $1 million exclusion is used at that spouse's death; it cannot be transferred to the surviving spouse.
Tax rates
Oregon applies the tax progressively above the threshold. The top rate is 16%.
What this means in practice
Oregon's combination of lowest-threshold + no portability produces:
- Many middle-class Oregon estates face Oregon estate tax. With Portland-area home values often $700K-$1M+ and retirement accounts adding to net worth, many Oregon families exceed the $1M threshold. - Bypass trust planning is essential for Oregon married couples with $1M+ assets. Without portability, the first-deceased spouse's $1 million exclusion is wasted unless captured through bypass trust planning. - Federal estate tax does NOT apply for most Oregon estates (federal threshold $13.99M is well above OR threshold). The Oregon-only gap is the planning focus for Oregon residents up to $13.99M.
For an estate of $3 million: - No federal estate tax (well below $13.99M) - Oregon estate tax on $2M of taxable estate at progressive rates up to 16% — approximately $300,000-$350,000
For a $2 million estate: - No federal estate tax - Oregon estate tax on $1 million at progressive rates — approximately $100,000-$150,000
How OR compares to other estate-tax states
Oregon's framework is the most aggressive nationally: - Oregon: $1M, no portability - Massachusetts: $2M, no portability - Minnesota: $3M, no portability - Illinois: $4M, no portability - New York: $7.16M, no portability (with cliff effect above 105%) - Connecticut: $13.99M (federal-conformed) with portability
Oregon is the only state where many middle-class estates without significant inherited wealth or business interests can exceed the threshold simply through home equity and retirement savings.
What you can do about it
For Oregon residents with substantial assets:
- Calculate Oregon estate tax exposure carefully. Many middle-class Oregon estates exceed $1M. - Use bypass trust planning for married couples to capture both spouses' exclusions. - Consider QTIP elections strategically. - Use lifetime gifting. Oregon has no state-level gift tax. Lifetime gifts can reduce future estate tax exposure. - Consider charitable bequests. - Engage an Oregon estate tax advisor.
For high-net-worth Oregon residents considering relocation:
- Washington, Idaho (no state estate tax) are common relocation destinations. (Note: Washington has its own estate tax structure; verify current Washington framework before relocating.) - Florida, Texas, Tennessee (no state estate tax) are also destinations. - Oregon real estate remains taxable even for non-resident decedents.
Who this affects most
Oregon's estate tax framework is most consequential for:
- Married Oregon residents with combined assets above $1M (many middle-class Oregon families) - Long-time Oregon homeowners whose property values, retirement accounts, and other assets push them above the threshold - Estate planners coordinating Oregon-specific exposure with federal planning - Surviving spouses who would lose the deceased spouse's $1M exclusion without bypass trust planning
Oregon's combination of lowest-threshold-in-nation and no portability makes proactive bypass trust planning the standard response. The cost of failing to plan can be substantial relative to the modest threshold.