401(k) Employer Match
How Does a 401(k) Employer Match Work and Is It Required?
A 401(k) employer match is a contribution an employer makes to an employee’s retirement account based on the employee’s own contributions—commonly structured as a partial match up to a set percentage of salary. Matching is discretionary, not legally required.
Common structures include a dollar-for-dollar match up to a percentage of salary, a partial match up to a higher percentage, or a flat contribution. Matches are typically subject to a vesting schedule—the employee’s own contributions are always immediately 100% vested.
Employer matches are subject to annual IRS contribution limits and, for many plans, “safe harbor” rules that simplify nondiscrimination testing if the match meets specific minimum thresholds.
401(k) Employer Match Key Facts and IRS Limits:
- Not legally required—a discretionary employer benefit design choice.
- Common structures include dollar-for-dollar or partial matches up to a set salary percentage.
- Matched funds may be subject to a vesting schedule; employee’s own contributions are always fully vested.
- “Safe harbor” match structures can simplify nondiscrimination testing requirements.
Frequently Asked Questions
Are employers required to match 401(k) contributions?
No—matching is a discretionary benefit design decision.
What does "vesting" mean for a 401(k) match?
When an employee fully owns the employer-matched funds—immediately or after a set period.
What is a "safe harbor" 401(k) match?
A match structure meeting IRS minimum thresholds that simplifies nondiscrimination testing.
What is a true-up payment for a 401(k) match?
A match structure meeting IRS minimum thresholds that simplifies nondiscrimination testing.
What is a true-up payment for a 401(k) match?
A true-up is a year-end employer contribution that corrects for shortfalls when an employee’s per-paycheck match didn’t reach the full annual match amount.
Can an employer change or stop its 401(k) match?
Yes—because matching is discretionary, employers can typically reduce or suspend it, though plan documents and advance notice rules may apply.
Related terms: Section 125 Cafeteria Plan, Benefits Administration, Imputed Income