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1 Jared Walczak, Toward a State of Conformity: State Tax Codes a Year after Federal Tax Reform 1 (2019)

handle is hein.taxfoundation/twscfty0001 and id is 1 raw text is: 









FISCAL
FACT
No. 631
Jan. 2019


The Tax Foundation is the nation's
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Editor, Rachel Shuster
Designer, Dan Carvajal
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Toward a State of Conformity:

State Tax Codes a Year After

Federal Tax Reform


Jared Walczak
Senior Policy Analyst



Key Findings

    States incorporate provisions of the federal tax code into their own codes in
      varying degrees, meaning that federal tax reform has implications for state
      revenue beyond any broader economic effects of tax reform.

    Because the base-broadening provisions of the new federal tax law often
      flow through to states, while the corresponding rate reductions do not, most
      states experienced a revenue increase. The vast majority of filers will receive
      a tax cut at the federal level, but due to state inaction in many cases, they
      may face tax increases at the state level.

    Seven states have yet to update their conformity statutes to a post-tax reform
      version of the Internal Revenue Code (IRC). Of these, Arizona, California,
      Minnesota, and Virginia conform to outdated versions of the IRC for both
      individual and corporate tax purposes, while Massachusetts has failed to
      update only its individual income tax conformity, and Florida and New
      Hampshire are out of date for corporate tax purposes.

    Sixteen states conform to an important pro-growth element of federal tax
      reform, the provision providing for immediate expensing of investments
      in machinery and equipment. Another three states conform with partial
      addbacks.

    State responses to international tax provisions, particularly those pertaining
      to the inclusion of Global Intangible Low-Taxed Income (GILTI), remain
      substantially unresolved. The taxation of GILTI would represent an
      uncompetitive departure from typical approaches to state taxation and raises
      constitutional issues in many states.

    States receiving additional revenue should view this as an opportunity
      to make their tax codes more competitive. In the past, federal tax reform
      initiated a round of state tax reform as well, and this process tends to last
      several years

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