Vesting Schedule
A vesting schedule is a timeline established by an employer that determines when an employee gains full ownership of employer-contributed retirement benefits, such as matching contributions or profit-sharing allocations.
Vesting governs the ownership transfer of employer-contributed retirement benefits over time. While employee contributions to a 401(k) or SIMPLE IRA are always 100% vested immediately (you own every dollar you put in), employer contributions are frequently subject to a waiting period designed to retain employees and reward tenure.
ERISA, the federal law governing most private-sector retirement plans, sets the maximum vesting schedules that plans may use. For employer matching contributions (accelerated under SECURE Act 2.0 for plans established after December 29, 2022), the choices are: (1) immediate vesting, where employer contributions vest as soon as they are made; (2) cliff vesting, where 0% is vested until a certain anniversary (maximum two years for post-2022 matching contributions in new plans, three years under older rules), then 100% vests at once; or (3) graded vesting, where vesting increases gradually over a period not to exceed six years (e.g., 20% per year over five years, or varying percentages over six years).
For profit-sharing and non-matching employer contributions, ERISA permits up to three-year cliff vesting or six-year graded vesting (unchanged by SECURE Act 2.0). Defined benefit pension plan vesting has its own rules — typically five-year cliff or seven-year graded for traditional formulas.
The practical impact of vesting is significant. An employee who leaves before full vesting forfeits the unvested employer contributions, which are then reallocated among remaining plan participants as 'forfeitures.' Understanding your plan's vesting schedule is essential before making any job change decision. For example, if you are 80% vested in $50,000 of employer contributions, leaving now forfeits $10,000 — a meaningful financial cost that may factor into the timing of a career move.
Some plans use 'service years' counting only full years of employment, while others count hours of service (1,000 hours in a plan year typically constitutes a year of service). Employees should review their plan's Summary Plan Description (SPD) for the exact vesting formula and service-counting methodology.