To elect an Arizona withholding percentage, an employee must complete Arizona Form A-4, and submit it to their employer. All wages, salaries, bonuses or other compensation paid for services performed in Arizona are subject to state income tax withholding, with exceptions.The amount withheld is a percent of your gross taxable wages of every paycheck. You may also have your employer withhold an extra amount from each paycheck. As of the 2023 filing season, Arizona has a flat income tax rate of 2.5 percent, replacing its graduated rate structure. Complete this form within the first five days of your employment to select an Arizona withholding percentage. You are required to report any additional income received to Broadspire in a timely manner to avoid LTD benefits being overpaid. Like every other state, employers in Arizona withhold federal income and FICA taxes from your paychecks. Right justify and zero fill. Negative amounts are not acceptable. 213-226.