Employers who elected to defer certain employees’ payroll taxes can withhold and pay the deferred taxes throughout 2021 instead of just the first four (4) months of the year, announced the IRS. IRS Notice 2021-11 extended the end date of the period during which employers must withhold and pay applicable taxes (the employee share of social security tax) from April 30, 2021 to December 31, 2021. Accordingly, interest and penalties will not begin to accrue until January 1, 2022, rather than on May 1, 2021.