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State conformity to federal pandemic relief, state tax conformity to federal COVID-19 relief legislation (CARES Act, American Rescue Plan), including Paycheck Protection Program (PPP) loans and unemployment compensation tax exclusion.

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
UK tax reform, 2021 budget UK 2021 budget, UK corporate tax reform, UK corporation tax rate

Marginal Effective Tax Rates and the 2021 UK Budget

The 2021 UK budget introduces a two-year super-deduction of 130 percent for plant and equipment and a delayed corporate tax rate increase from 19 percent to 25 percent in 2023. These policies have differential impacts on marginal effective tax rates for different assets, implying investment incentives will not be uniform.

15 min read
Excise Taxes, 2021 Excise Tax Rates and 2021 Excise Tax Trends

Excise Tax Application and Trends

The excise tax family is growing. Over the last decade, several products have become subject to excise taxes or are in the process of becoming so. Given this development, it is more crucial than ever that lawmakers, businesses, and consumers understand the possibilities and, more importantly, limitations of excise tax application.

77 min read
Mississippi income tax repeal and Mississippi income tax eform, Mississippi sales tax changes, Mississippi eliminate income tax proposal. Mississippi income tax phase out Governor Tate Reeves

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

Evaluating Proposals to Increase the Corporate Tax Rate and Levy a Minimum Tax on Corporate Book Income

President Biden and congressional policymakers have proposed several changes to the corporate income tax, including raising the rate from 21 percent to 28 percent and imposing a 15 percent minimum tax on the book income of large corporations, to raise revenue for new spending programs. Our new modeling analyzes the economic, revenue, and distributional impact of these proposals.

46 min read
Carbon Border Adjustment Mechanism EU CBAM carbon price carbon tariffs US global minimum tax US tax incentives Build Back Better tax rate on gilti Global Intangible Low Tax Income (GILTI) Global intangible low-taxed income US cross-border tax reform and GILTI Global Intangible Low Tax Income. Foreign tax credits

U.S. Cross-border Tax Reform and the Cautionary Tale of GILTI

The Biden campaign and Senate Democrats identified changes to GILTI that would increase the taxes U.S. companies pay on their foreign earnings. Rather than tacking on changes to a system that is currently neither fully territorial nor worldwide, policymakers should evaluate the structure of the current system with a goal of it becoming more, not less, coherent.

51 min read
Maryland sales tax hike on businesses proposed by state lawmakers

Maryland’s Digital Advertising Tax Is Unworkably Vague

In addition to its economic impact on Maryland businesses and the likelihood of serious legal challenges, Maryland’s proposed digital advertising tax is incredibly vague on vital definitions, creating uncertainty about where revenue is sourced and when it is subject to the tax.

17 min read