At-will employment rule
Washington follows the at-will employment doctrine. An employer may discharge an at-will employee "for no cause, good cause or even cause morally wrong without fear of liability," and conversely, an employee may abandon employment at any time. This common-law rule has governed employment relationships in Washington since at least 1928 and remains the default absent an express contract for a specified duration.
Source: Thompson v. St. Regis Paper Co., 102 Wash. 2d 219, 226 (1984)
Final paycheck timing — end of established pay period
Washington requires employers to pay all wages due to a terminated employee no later than the end of the established pay period, regardless of whether the separation was a discharge or a voluntary quit. RCW 49.48.010(2) draws no distinction between the two: "When any employee shall cease to work for an employer, whether by discharge or by voluntary withdrawal, the wages due him or her on account of his or her employment shall be paid to him or her at the end of the established pay period."
The "established pay period" rule. The statute ties the final-paycheck deadline to the employer's regular pay schedule, not to a fixed number of calendar days after separation. If an employer pays biweekly and an employee's last day falls on June 10 in a pay period that runs June 1–14, with payday on June 21, the final paycheck is due June 21. If the employer pays weekly with Friday paydays, and the employee separates on a Tuesday, the final paycheck is due the Friday of the pay period covering the last day worked. The Washington Department of Labor & Industries regulation at WAC 296-126-023 establishes that for pay periods shorter than a month, the regular payday must be no later than ten calendar days after the end of the pay period; the RCW 49.48.010(2) rule then dictates that the final paycheck follows that same schedule.
No immediate-payment requirement. Unlike states that mandate same-day or next-business-day payment upon involuntary termination, Washington gives employers the time until the next regular payday. An employer may choose to pay sooner, but the statute imposes no obligation to accelerate. The 1952 Attorney General opinion interpreting an earlier version of the statute (which used the word "forthwith") has been superseded by the 1971 amendment that replaced immediate-payment language with the "end of the established pay period" standard now in subsection (2).
Components of final wages. "Wages due" under RCW 49.48.010(2) includes regular hourly or salary pay through the last day worked, earned overtime, and any commissions or bonuses vested under the employer's compensation plan. Accrued vacation or PTO payout is included in final wages if the employer's written policy or employment agreement promises payout on separation; Washington treats such promises as "wages" enforceable under the wage-payment statutes, even though the state has no statute mandating vacation payout in the absence of a policy. Paid sick leave accrued under the Washington Paid Sick Leave Law (RCW 49.46.200 et seq.) need not be paid out at separation except for construction workers who have not met the 90-day threshold under RCW 49.46.210(1)(l).
Statute of limitations and penalties. An employee has three years from the date wages were due to file a wage complaint with the Department of Labor & Industries or pursue a civil action. RCW 49.48.082–.087 authorizes the department to assess civil penalties for violations; willful withholding of final wages can trigger liquidated damages equal to the unpaid amount, interest at one percent per month, and attorney fees under RCW 49.48.030.
Employer cannot condition payment on return of property. Washington employers may not withhold a final paycheck to compel return of company equipment, keys, or uniforms. Deductions from the final paycheck are permitted only for the narrow categories enumerated in WAC 296-126-025: loans or debts with employee authorization (oral or written), court-ordered wage assignments, and certain deductions for incidents occurring in the final pay period only (cash shortages from a register with sole access, bad checks accepted in violation of procedures), and even those final-period deductions cannot reduce the gross wages below the state minimum wage for hours worked. An employer may pursue separate civil remedies for unreturned property but cannot make final-wage payment contingent on it.
Source: RCW 49.48.010 Source: WAC 296-126-023 Source: WAC 296-126-025