Oregon is one of a small number of US states that still levies its own estate tax, and its exemption is unusually low. While the federal estate tax only applies to estates worth more than roughly $13.6 million, Oregon begins taxing at just $1,000,000. That means many middle-class estates — especially those holding appreciated real estate — can owe Oregon estate tax even when they owe nothing federally. This calculator estimates that liability.
How it works
The estate tax is computed on the taxable estate, which is the gross estate minus allowable deductions:
- Gross estate. Add the fair-market value of all property the decedent owned — real estate, bank and brokerage accounts, retirement accounts, business interests and personal property.
- Deductions. Subtract debts, mortgages, funeral and administration expenses, and any transfers that qualify for the marital or charitable deduction.
- Exemption. Oregon exempts the first
$1,000,000. If the taxable estate is at or below this, no tax is due. - Graduated tax. The amount above the exemption is taxed through Oregon’s bracket schedule, which rises from 10% to 16% as the estate grows.
The result is the estimated Oregon estate tax the estate must pay before assets are distributed to heirs.
Tips and example
Consider an estate with a $2,000,000 gross value and $150,000 of debts and expenses. The taxable estate is $1,850,000. After subtracting the $1,000,000 exemption, $850,000 is subject to tax. Oregon applies 10% to the first $500,000 above the exemption and a higher rate to the next slice, producing tax in the tens of thousands of dollars.
Because Oregon’s threshold is so low, planning matters: spousal transfers, lifetime gifting and charitable bequests can all reduce the taxable estate. This tool is an estimate only — consult an estate attorney for filing, because the full Oregon return (Form OR-706) involves valuation rules and elections not modelled here.