The Mobile Workforce State Income Tax Simplification Act (H.R. 2315) would prohibit the wages or other remuneration earned by an employee who performs employment duties in more than one state from being subject to income tax in any state other than: (1) the state of the employee’s residence, and (2) the state within which the employee is present and performing employment duties for more than 30 days during the calendar year. This measure would ease the reporting burden on businesses, large and small.