Fifty states, over 7,300 state legislators, and over 100,000 bills: legislative sessions are a whirlwind. But the Tax Foundation and its state experts are here to help make sense of the key tax policy issues in state capitols.
This page is intended as a resource for policymakers and others focused on state-level tax policy, providing one-click access to key resources and highlighting papers on some of the biggest issues of 2026. It is also an open invitation to connect directly with our experts with questions or requests for legislative testimony. Contact information for the Tax Foundation expert assigned to each state can be found below.
The past five years have seen the majority of states adopt rate cuts, particularly to individual income taxes. Some states have gone even further by easing compliance costs for hybrid and remote workers, offering permanent full expensing of capital investments, and adopting other reforms to promote mobility and modernization in an increasingly competitive state tax landscape.
In addition to papers on major issues in contemporary tax policy, we also have resources like our six-part “boot camp” series for state lawmakers and others interested in state tax policy, along with publications like our State Tax Competitiveness Index (a comparison of the competitiveness of states’ tax structures) and Facts & Figures (a handy guide to state tax rates, collections, and burdens data). We invite you to treat this page as a launching point as you think about state tax policy issues throughout 2026.
Contact an Expert Get State Tax Reform Guide See Featured Resources
The Tax Foundation has a talented team of experts, each assigned to his or her own set of states. If you have any questions, or if we can be of assistance to you in any way, please reach out to the tax policy expert assigned to your state.
In an era of enhanced mobility, where tax competition matters more than ever, an out-of-date tax code just won’t do. Lawmakers should modernize their tax codes to position their states for success in a rapidly changing economic landscape.
Our new booklet highlights five tax reforms that most states could undertake to grow their economies and position themselves for success. Download the guide below to learn how states can:
Download State Reform Handbook
The State Tax Competitiveness Index enables policymakers, taxpayers, and business leaders to gauge how their states’ tax systems compare. While there are many ways to show how much state governments collect in taxes, the Index evaluates how well states structure their tax systems and provides a road map for improvement.
122 min read
Lawmakers can constrain the growth of property taxes without creating new problems. But the details matter.
Facts & Figures serves as a one-stop state tax data resource that compares all 50 states on over 40 measures of tax rates, collections, burdens, and more.
2 min read
For Congress, work on the One Big Beautiful Bill Act is done. But in state capitols, the work has not yet begun. Many of the tax changes in the federal reconciliation act flow through to state tax codes—automatically in some states, and subject to an update in states’ Internal Revenue Code conformity date in others.
39 min read
The sales tax is the second-largest source of state tax revenue and an important source of local tax revenue, but decades of base erosion threaten the tax’s share of overall revenue and have prompted years of countervailing rate increases.
72 min read
As a rule, an individual’s income can be taxed both by the state in which the taxpayer resides and by the state in which the taxpayer’s income is earned.
52 min read
States are unprepared for the ongoing shift to remote and flexible work arrangements, or for the industries and activities of today, to say nothing of tomorrow. In some states, moreover, existing tax provisions exacerbate the impact of high inflation and contribute to the supply chain crisis.
40 min read
The current patchwork of state laws taxing marketplace facilitators is complex, burdensome, and inefficient. States should work to resolve these issues and standardize the otherwise disparate requirements—with or without an inducement from Congress or the courts.
29 min read
In red and blue states alike, voters showed wariness toward novel changes to the tax code, with two notable exceptions.
3 min read
This November, states across the country are asking voters to consider changes to their state constitutions to address the burden of rising property taxes.
7 min read
Cigarette smuggling is costly for states. We estimate that the forgone revenue from smuggled cigarettes totaled more than $4.6 billion in 2024. California lost nearly $1.4 billion in cigarette excise tax collections, and New York missed out on more than $1.2 billion.
5 min read
No one enjoys paying taxes, but the property tax serves an important purpose, and Wyoming has already implemented significant property tax relief. Proposition 1 would undercut local finances to a degree that would likely force reliance on worse taxes (local or state) and prompt spending cuts that reduce homeowners’ property values.
5 min read
Florida has long maintained one of the nation’s most competitive state tax codes, but a fundamental change proposed by Amendment 3 could undermine that competitiveness.
30 min read
Washington’s new income tax on high earners doesn’t take effect until 2028, but it is already generating a lot of activity. A measure on the ballot this November, Initiative 645, would reverse the legislature’s decision, preventing the new tax from taking effect.
5 min read
Imposing sales taxes on rental car companies’ fleet purchases, in addition to the sales and rental car excise taxes levied when those cars are rented, yields double taxation and causes harmful tax pyramiding.
9 min read
In addition to the federal estate tax, which has a top marginal rate of 40 percent, 12 states and the District of Columbia impose estate taxes, while five states levy inheritance taxes.
8 min read
Corporations in the United States pay federal corporate income taxes levied at a 21 percent rate. Forty-four states and DC also levy taxes on corporate income, with top marginal rates ranging from 2.5 percent in North Carolina to 11.5 percent in New Jersey.
2 min read
On Election Day, Coloradans will get to decide on two competing measures on income taxes: an initiated statute that would cap income taxes at the current 4.4 percent rate; and a constitutional amendment that would authorize a graduated-rate individual and corporate income tax, paired with an initiated statute setting new rates, with a top rate of 8.4 percent.
6 min read