A growing number of Democratic-led states are enacting or considering new taxes on the wealthy as budget pressures mount and national wealth inequality widens, according to reporting from Kentucky Lantern. Maine and Washington have recently joined Massachusetts and New Jersey in implementing special levies on high earners, while lawmakers in at least a dozen other states are proposing similar measures.

Maine and Washington, which enacted its own law last month, are among the latest Democratic-led states to ask for more tax dollars from the rich as national wealth inequality widens and states face heightened budget pressures. Maine's new tax increases that rate by two percent, creating a new 9.15 percent tax rate for the highest tax brackets. Washington enacted a millionaires' tax, which applies a 9.9% levy to residents who make more than $1 million per year.

The idea is gaining traction as lawmakers in at least a dozen states, including Illinois, Minnesota, Rhode Island and Virginia, have proposed new taxes for the wealthiest taxpayers. In California, advocates this week announced they gathered enough signatures for a ballot initiative that would impose a one-time tax on billionaires.

Supporters argue these taxes help address regressive state tax structures. Maine state Rep. Cheryl Golek, a Democrat, said working- and middle-class households in her state pay effective income tax rates similar to or higher than wealthy earners. Polling released by the Maine People's Resource Center showed that 69% of those surveyed, regardless of political affiliation, supported increasing taxes on individuals making more than $1 million in annual income.

The push for higher taxes on the wealthy reflects federal policy changes. The Trump tax law in 2025 imposed tax changes that provide outsized benefits to the wealthy and made far-reaching cuts to programs like SNAP and Medicaid. In Maine, the average annual tax cut under the federal law for the richest 1 percent exceeded $34,000.

Critics worry about the economic impact. Opponents argue higher taxes on the wealthy could drive residents and businesses to low-tax states, though Massachusetts data shows that outmigration was actually worse before their millionaire tax, over years of declining taxation, than after, and Massachusetts is now able to invest billions more in its schools and roads.

The trend marks a sharp divergence in state tax policy, contrasting with states like Kentucky that are moving in the opposite direction. Since 2021, more than 20 states — the majority of those with individual income taxes — have reduced top marginal rates, while a handful of states and the District of Columbia have raised them.