The federal exemption is high enough that few estates owe, but a dozen states set their own, far lower. These pieces cover the federal rules and the state cliffs.
New York's 2026 basic exclusion is $7,350,000, and Tax Law §952 claws it back at $20 per dollar of overshoot: a $7,360,000 estate owes $28,560, a $7,500,000 estate owes $386,400, and past $7,717,500 the whole estate is taxed from its first dollar.
OBBBA §70106 set the federal estate and gift exclusion at $15 million for 2026 and struck the sunset. Twelve states and DC still levy their own estate taxes, and a $10 million estate that owes the IRS nothing owes Washington State $1,100,000.