How should I evaluate different 401(k) employer match and vesting schedules when choosing between job offers?

Deciding between offers with similar base pay and different 401(k) matches is less about which match percentage looks better on paper and more about how much of that match you are realistically likely to keep. Your own elective deferrals from pay are always fully yours under federal rules—the employer cannot take them back. Only the employer match is subject to a vesting schedule. Immediate vesting means every dollar of match stays with you if you leave. A three-year cliff vesting schedule is the slowest form federal minimum standards allow for this type of plan: after less than three years of service you typically vest in zero percent of the match, and after completing three years you vest in one hundred percent. With a planned stay of two to three years, that distinction can wipe out the apparent advantage of a higher match rate.

A practical way to compare is to estimate total vested match dollars over your expected tenure, not the sticker match percentage. Assume you contribute enough each year to earn the full stated match, use a comparable base salary for both offers, and multiply annual match by the number of years you expect to complete. Under immediate vesting, a four percent match is kept in full for every year you work. Under a three-year cliff, a six percent match is worth nothing in your pocket if you leave before completing three years of service; if you stay through the cliff, you keep the full accumulated match for those years. For a two-year stay, the four percent immediate match usually wins on pure match value. For a stay that clearly finishes year three, the six percent cliff match can become more valuable—but only if you actually reach that cliff. Confirm how the plan defines a year of service (often one thousand hours in a twelve-month period) and how your start date affects when year three completes, because partial years and hour thresholds can shift the cliff.

Also read the match formula itself, not only the headline rate: dollar-for-dollar up to a percentage of pay is different from a partial match, and both still count toward annual contribution limits. Focus on vested dollars under a realistic timeline, plus the rest of total compensation and how long you honestly expect to stay, rather than treating the higher match percentage as automatically better.