Yet as complex as a particular income tax system might be, things get even more complicated when multiple tax systems are in play. In the United States, not only must taxpayers deal with a federal income tax system, they also must face state income tax systems in most states. Some taxpayers are subject to more than one state income tax system if they live in one state and work in another. Add to that local tax systems and taxpayers’ heads understandably spin, even if a tax return preparer is doing the heavy lifting.
An example of this complexity can be found in the recent changes to the tax treatment of unemployment compensation. Until this year, the basic rule was simple. Unemployment compensation was included in gross income for federal income tax purposes. Some states also included unemployment compensation in state gross income though others did not tax unemployment compensation. Though the existence of two different rules, taxed and not taxed, creates complexity, it’s nothing like the complexity that has shown up for tax year 2020.
The American Rescue Plan Act of 2021 amended Internal Revenue Code section 85 to provide that the first $10,200 of unemployment compensation is excluded from federal gross income if the taxpayer’s adjusted gross income is less than $150,000. States that automatically conform to the federal tax law automatically adopt this change though a state legislature can choose to amend state income tax law to ignore the exclusion or to cause it to apply to more or less than $10,200. States that already did not include unemployment compensation in gross income are unaffected by the federal change. States that do not conform to federal tax law and states that conform to the Internal Revenue Code as of a particular date earlier than March 11, 2021, and that tax unemployment compensation will continue to do so. It appears that the $150,000 adjusted gross income limit applies in states that adopt the exclusion by conformity, but if a state legislature adopts the exclusion, not only might the amount of the exclusion be different but there may or may not be an adjusted gross income limit and if there is one it might be different from the federal limit. At least one state that does not conform to the federal tax law is administratively permitting an exclusion matching the federal revision. And on top of this, the IRS changed the instructions for computing the limit, causing taxpayers and tax return preparers to learn new rules in the middle of tax season.
So, for example, for 2020, the first $10,200 of unemployment compensation is excluded from gross income in Iowa. In Rhode Island, unemployment compensation will continue to be taxed. Because state rules are changing and some states have not yet finalized their positions on the issue, I am not providing a state-by-state listing, and will leave that to the various commercial publishers that are doing so.
In an increasingly mobile society, the existence of separate rules in 50 states, the District of Columbia, and territories imposes friction on business and commerce. When the nation’s population was relatively isolated, and people’s employment and businesses generally confined to one state, it did not matter much that different states had different rules. Times have changed. Though it is understandable that states would want to impose different rates of taxation, to define income differently makes it difficult for taxpayers to find any sort of consistency in the concept of gross income or taxable income. All states agree with the federal income tax principle that the receipt of loan proceeds does not constitute gross income because the recipient is not wealthier. But unemployment either is income, and ought not income either be taxed or excluded from taxation on a consistent basis? Differences in the answer to that question creates complexity. That complexity is made worse when the rules change, and change with respect to amount that can be excluded, and change with respect to the adjusted gross income limit on the exclusion.
The major point is that the existence of multiple applicable tax systems compounds complexity orders of magnitude beyond the complexity created by any one tax system alone. Though most tax professionals understand this problem, most taxpayers tend to focus their complaints about tax complexity on the federal system even though some state tax systems alone are at least as complex as the federal system. States that conform to the federal system without date limitation minimize this complexity but do so in the face of criticism that they are “giving up independence” or “relinquishing sovereignty to Washington, D.C.” States that do not conform to the federal system or that do so subject to a date limitation impose additional compliance costs on their taxpayers for the sake of some abstract sense of “independence.” Though the voters in such a state can support or reject that approach when they go to the polls, the nonresident taxpayers do not have representation in the legislature in such a state.
Tax complexity is undesirable, much of it is unnecessary, too much of it arises from political rather than public benefit pressures, and a good bit of it could be reduced or eliminated through careful consideration and review of federal and state income tax laws. To paraphrase what I wrote in Tax Filing Deadlines: Theory and Practice in the connection with the extension of the federal filing deadline, “Though advocates of states’ rights champion the notion that states can serve as ‘living laboratories’ for experimenting with various public policy initiatives, the reality of modern life is that the interconnection among states is so tightly wound that” having a half dozen or more approaches to the taxation of a particular transaction does more harm to taxpayers than the cost to of conforming to the federal system.