What payroll deadlines should employers track?

Payroll Tax Deadlines for Employers in Washington State

Employers operating in Washington must stay on top of several payroll tax deadlines to maintain compliance and avoid penalties. Tracking these deadlines ensures timely tax payments and accurate reporting to state and federal agencies.

Key Payroll Tax Deadlines

• Federal Payroll Tax Deposits: Employers must deposit federal income tax withheld, Social Security, and Medicare taxes according to the IRS deposit schedule, which varies based on the total tax liability. Typically, deposits are either semi-weekly or monthly.
• Washington State Unemployment Insurance (UI) Tax: UI tax payments are due quarterly. Employers report wages and pay UI taxes to the Washington State Employment Security Department (ESD) by the last day of the month following the end of each calendar quarter.
• Paid Family and Medical Leave (PFML) Premiums: PFML premiums are also reported and paid quarterly to the Washington State Employment Security Department. The due date aligns with UI tax deadlines.
• New Hire Reporting: Employers must report all new hires to the Washington State New Hire Reporting Program within 20 days of the employee’s start date to assist with child support enforcement and other state programs.
• Annual W-2 and 1099 Filing: Employers must furnish W-2 forms to employees and file copies with the Social Security Administration by January 31 each year. This deadline also applies to 1099 forms issued for contract workers.

Operational Tips for Meeting Payroll Deadlines

• Automate Payroll Processing: Use payroll software that integrates tax calculations and schedules deposit reminders to reduce errors and missed deadlines.
• Maintain Accurate Employee Records: Keep up-to-date records of wages, hours worked, and employee classifications to ensure correct tax reporting.
• Schedule Quarterly Reviews: Regularly review payroll tax obligations and payments to catch discrepancies early and adjust withholding or payments if necessary.
• Coordinate with Bookkeeping: Align payroll tax payments with your overall bookkeeping schedule to maintain cash flow and accurate financial records.

As of 2026, staying current with Washington’s payroll tax deadlines and related reporting requirements is essential for smooth business operations and compliance management.