The AICPA on Wednesday sent a letter to Treasury and the IRS requesting guidance on the recent presidential memorandum deferring some employee payroll taxes until next year. The memorandum, issued by President Donald Trump on Saturday, defers the withholding, deposit, and payment of the employee portion of the old-age, survivors, and disability insurance (OASDI) tax under Sec. 3101(a) and Railroad Retirement Act Tier 1 tax under Sec. 3201 for any employee whose pretax wages or compensation during any biweekly pay period generally is less than $4,000. It applies to payroll taxes on wages paid from Sept. 1 through Dec. 31, 2020.