Depending on the plan, the employer and employee may both make contributions, but the amounts vary
There are two limits that apply to contributions annually:
"1. A limit on employee elective salary deferrals. Salary deferrals are contributions an employee makes, in lieu of salary, to certain retirement plans:
- 401(k) plans
- 403(b) plans
- SARSEP IRA plans (Salary Reduction Simplified Employee Pension Plans)
- SIMPLE IRA plans (Savings Incentive Match Plans for Employees)
2. An overall limit on contributions to a participant’s account. The limit applies to the total of:
- Elective deferrals (but not catch-up contributions)
- Employer matching contributions
- Employer nonelective contributions
- Allocations of forfeitures
Deferral limits for 401(k) plans
- The limit on employee elective deferrals (for traditional and safe harbor plans) is:
- $19,500 in 2021, subject to cost-of-living adjustments
Generally, you aggregate all elective deferrals you made to all plans in which you participate to determine if you have exceeded these limits. If a plan participant’s elective deferrals are more than the annual limit, find out how you can correct this plan mistake.
Deferral limits for a SIMPLE 401(k) and IRA plans
The limit on employee elective deferrals to a SIMPLE 401(k) and IRA plans is:
- $13,500 in 2021
- This amount may be increased in future years for cost-of-living adjustments
Plan-based restrictions on elective deferrals
- Your plan's terms may impose a lower limit on elective deferrals
- If you are a manager, owner, or highly compensated employee, your plan might need to limit your deferrals to pass nondiscrimination tests
Catch-up contributions for those age 50 and over
If permitted by the 401(k) plan, participants age 50 or over at the end of the calendar year can also make catch-up contributions. You may contribute additional elective salary deferrals of:
- $6,500 in 2021 to traditional and safe harbor 401(k) plans
- $3,000 in 2021 to SIMPLE 401(k) and IRA plans
- These amounts are subject to cost-of-living adjustments
You don’t need to be “behind” in your plan contributions in order to be eligible to make these additional elective deferrals."