A half-century ago, tax withholding was one of the simpler issues for taxpayers and practitioners. A more mobile society makes state tax withholding more complicated today given the ease of conducting cross-jurisdictional business and the increase in teleworking or remote work arrangements.
Meanwhile, the web of inconsistent state and local income tax and withholding rules affect employees and employers. As the AICPA testified, the myriad state income tax withholding laws and varying de minimis exceptions make compliance difficult and time-consuming.
In the wake of the coronavirus pandemic, more employees are teleworking, and state income tax withholding is a larger burden on employers.