Payroll Tax Filing Instructions for Professional Services requested for Payroll Tax filing 2021 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter W2 / W3 Filing 2020 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter W2 / W3 Filing 2019 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter W2 / W3 Filing 2018 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter