A named, dated dataset of exemptions and top rates for the 12 states plus Washington, D.C. that levy an estate tax, with sources and a downloadable CSV.
Twelve states and Washington, D.C. levy their own estate tax on top of the federal estate tax in 2026, and every one of them sets a lower exemption than the federal $15,000,000 basic exclusion amount, so a resident can owe state estate tax while owing the IRS nothing at all. Connecticut is the only one of the twelve that ties its exemption to the federal amount; the rest set their own fixed threshold, several starting as low as $1,000,000 to $2,000,000.
01 - Summary table| State | 2026 exemption | Top rate |
|---|---|---|
| Connecticut | $15,000,000 | 12% |
| District of Columbia | $4,710,000 | 16% |
| Hawaii | $5,490,000 | 20% |
| Illinois | $4,000,000 | 16% |
| Maine | $7,000,000 | 12% |
| Maryland | $5,000,000 | 16% |
| Massachusetts | $2,000,000 | 16% |
| Minnesota | $3,000,000 | 16% |
| New York | $7,350,000 | 16% |
| Oregon | $1,000,000 | 20% |
| Rhode Island | $1,838,056 | 16% |
| Vermont | $5,000,000 | 16% |
| Washington | $3,000,000 | 20% |
Download the full dataset (CSV)
Five figures were checked against a primary source this session (July 2, 2026): the federal basic exclusion amount and Connecticut's exemption (which is defined by Connecticut law as equal to the federal amount) against IRS Rev. Proc. 2025-32 (Oct. 9, 2025) and the Connecticut Department of Revenue Services; New York's basic exclusion amount against the New York State Department of Taxation and Finance; Rhode Island's exemption against Rhode Island Division of Taxation Advisory 2025-27; and Washington's exemption and rate against the Washington State Department of Revenue's 2026 estate tax tables. Illinois, Maryland, Massachusetts, Minnesota, Oregon and Vermont use flat, non-indexed statutory thresholds that do not change annually. The District of Columbia, Hawaii and Maine figures are this site's existing model figures and were not independently reverified against a primary source this session; confirm them with the relevant state revenue department before relying on them. This table is updated when Chris or an editor reverifies it against primary sources; see the CSV for a per-row verification flag.
03 - DefinitionsRows marked as reverified this session carry a primary-source citation in the paragraph above; the rest are carried-forward figures and should be checked against the linked state page, which in turn points to the state's own revenue department. A state row moving in this table does not change the federal $15,000,000 exemption, since the two figures are set independently.
Cite this page: EstateTaxCalculator, "2026 Estate Tax by State Reference," estatetaxcalculator.pro/estate-tax-by-state-guide, updated July 2, 2026.