
Katherine Loughead is a Senior Policy Analyst & Research Manager with the Center for State Tax Policy at the Tax Foundation, where she serves as a resource to policymakers in their efforts to modernize and improve the structure of their state tax codes.
Ms. Loughead was one of the lead authors of Wisconsin Tax Options: A Guide to Fair, Simple, Pro-Growth Reform and Kansas Tax Modernization: A Framework for Stable, Fair, Pro-Growth Reform. Her work has been cited in The New York Times, USA TODAY, Forbes, the Associated Press, and numerous state media outlets across the country.
Prior to joining the Tax Foundation in April 2018, Ms. Loughead worked for a U.S. senator and a member of the U.S. House of Representatives, where she advised on tax policy during the consideration and enactment of the historic Tax Cuts and Jobs Act. A graduate of the John Wesley Honors College at Indiana Wesleyan University, Ms. Loughead holds a degree in English and Business Administration, as well as a paralegal certificate from Georgetown University.
Originally from Belvidere, Illinois, Katherine now lives in Washington, D.C., where in her spare time she can be found taking flying trapeze classes or reliving her gymnastics days at the local YMCA.
Latest Work


North Carolina Considers Corporate Income Tax Repeal and Individual Income Tax Relief
Taken together, the proposed reforms would further solidify North Carolina’s position as a leader in sound tax policy and as a state whose tax code is among the most conducive to generating long-term economic growth.
7 min read
Illuminating the Hidden Costs of State Tax Incentives
In most states, tax incentives abound, usually offered as a way of promoting new investment or attracting certain industries by shielding them from the full impact of otherwise high tax rates.
6 min read
States Respond to Strong Fiscal Health with Income Tax Reforms
As states close their books for fiscal year 2021, many have much more revenue on hand than they anticipated last year. Eleven states have responded by reducing income tax rates and making related structural reforms as they strive to solidify a competitive advantage in an increasingly competitive national landscape.
29 min read
Property and Sales Taxes Are a Major Driver of Corporations’ State and Local Tax Burdens
As policymakers consider ways to improve their tax structure to encourage business investment and promote economic growth, corporate income tax rate reductions are a crucial part of that conversation, but they shouldn’t be the only consideration.
6 min read
What’s in Arizona’s Tax Reform Package?
After weeks of deliberations, Arizona Gov. Doug Ducey signed into law a budget for fiscal year (FY) 2022 that reduces the state’s individual income tax rates and consolidates brackets, a plan that will help restore Arizona’s reputation as a low-tax alternative to California.
7 min read
Wisconsin Legislature Considering Several Pro-Growth Tax Reforms
Reducing the second-highest individual income tax rate, repealing the TPP tax, and freezing UI tax rates are three valuable reforms that would help promote a smooth economic recovery in Wisconsin while setting the state up for robust economic growth for years to come.
6 min read
State Tax Changes Taking Effect July 1, 2021
Thirteen states have notable tax changes taking effect on July 1, 2021, which is the first day of fiscal year (FY) 2022 for every state except Alabama, Michigan, New York, and Texas. Individual and corporate income tax changes usually take effect at the beginning of the calendar year for the sake of maintaining policy consistency throughout the tax year, but sales and excise tax changes often correspond with the beginning of a fiscal year.
11 min read
Wisconsin’s Surplus Presents Opportunity for Down Payment on Future Economic Growth
As Wisconsin emerges from the pandemic, state policymakers have a rare opportunity to reinvest excess revenues in a structurally sound manner that will make the state more attractive to individuals and businesses, promote a quicker and more robust economic recovery, and put the state on the path to increased in-state investment and growth for many years to come.
7 min read
Arizona Legislators Consider Lower, Flatter Income Tax
The income tax changes in HB 2900 as introduced would improve Arizona’s individual income tax structure and economic competitiveness, making the state more attractive to individuals and pass-through businesses .
8 min read
Biden Administration Changes to GILTI and FDII Will Yield Automatic State Tax Increases
State taxation of GILTI is unconventional and economically uncompetitive and will become even more so if the federal government adopts a more aggressive approach to taxing GILTI, as outlined in the American Jobs Plan Act.
29 min read
Location Matters 2021: The State Tax Costs of Doing Business
A landmark comparison of corporate tax costs in all 50 states, Location Matters provides a comprehensive calculation of real-world tax burdens, going beyond headline rates to demonstrate how tax codes impact businesses and offering policymakers a road map to improvement.
8 min read
Outlier No More: Kansas Adopts Tax Reform with Wayfair Safe Harbor, GILTI Exclusion
After three years of deliberations, more than two-thirds of members in both the Senate and the House enacted tax reform and relief legislation Monday over the veto of Gov. Laura Kelly (D).
4 min read
Kansas Lawmakers to Consider Veto Override on Tax Reform Bill
Kansas has the revenue cushion it needs to provide tax relief to individuals and businesses and improve the structure of its tax code in the process. These pro-growth reforms would not only help taxpayers amid the pandemic but would also promote economic recovery and growth in a state that is lagging behind its competitors.
7 min read
Excluding GILTI and Reducing the Corporate Tax Rate Would Improve Nebraska’s Economic Competitiveness
Excluding Global Intangible Low-Taxed Income (GILTI) from taxation and reducing the state’s top marginal corporate rate would improve the state’s economic competitiveness and are among the top income tax modernization priorities Nebraska policymakers ought to consider.
4 min read
State Conformity to Federal Pandemic-Related Tax Provisions in CARES and ARPA
With so many federal changes occurring in such a short amount of time—including some federal provisions changing more than once and a major change to the treatment of UC income occurring in the middle of tax filing season—state legislators have faced the challenge of responding to these changes quickly in order to provide certainty to taxpayers.
24 min read
Kentucky’s Century-Old Gas Tax Is Failing to Keep Up with Road Funding Needs
For the fourth year in a row, a comprehensive infrastructure funding reform bill has been introduced in Kentucky, with the centerpiece being a gas tax increase of 8.6 cents per gallon (cpg). Like many states, Kentucky faces a backlog of road maintenance and construction projects, and existing transportation taxes and user fees are failing to keep pace with funding needs.
4 min read
Evaluating Mississippi’s Plan to Phase Out the Individual Income Tax
Mississippi has an opportunity to become the 10th state without an individual income tax and to do so with sales tax rates which, while certainly high, are in line with regional competitors. For such a momentous undertaking, however, policymakers should be equipped with reliable revenue projections and a detailed accounting of how much revenue is projected to come from each offsetting change. A change worth doing is worth doing right.
15 min read
Which States Are Taxing Forgiven PPP Loans?
Congress chose to exempt forgiven Paycheck Protection Program (PPP) loans from federal income taxation. Many states, however, remain on track to tax them by either treating forgiven loans as taxable income, denying the deduction for expenses paid for using forgiven loans, or both.
11 min read
State Individual Income Tax Rates and Brackets, 2021
Individual income taxes are a major source of state government revenue, accounting for 37 percent of state tax collections in fiscal year (FY) 2017. Several states had notable individual income tax changes in 2020: Arizona, Arkansas, Massachusetts, Michigan, Minnesota, North Carolina, Ohio, Tennessee, Virginia, and Wisconsin.
22 min read