What are 401(k) employer contribution limits in 2017
For 2017, 401(k) plan rules limit the total annual amount that can be recorded in an employee account under a defined contribution plan. This includes both employee salary deferrals and all employer contributions, such as matching contributions and profit sharing. The limits are set by the IRS and indexed most years for inflation. Understanding these caps helps employees maximize savings while ensuring plans remain compliant. This evergreen reference explains the 2017 rules, definitions, and how the limits interact with compensation and eligibility.
Annual additions cap for 2017 plans
The IRS sets a limit on annual additions, which is the total of employee deferrals, employer matching contributions, and employer profit-sharing contributions for each participant in a calendar year. For 2017, this limit is $54,000. For participants age 50 and older, an additional catch-up deferral of $6,000 applies, raising the total annual additions cap to $60,000. These limits ensure that highly compensated employees cannot receive disproportionate contributions that undermine the plan’s broad coverage objectives.
Key 2017 annual limits at a glance
| Limit type | 2017 amount | Notes |
|---|---|---|
| Annual additions (total of all contributions per participant) | $54,000 | Applies before age 50; includes employee deferrals and all employer contributions |
| Catch-up contributions for age 50+ | $6,000 | Allowed for participants aged 50 or older in the calendar year |
| Annual additions cap for age 50+ | $60,000 | Combines normal annual additions and catch-up contributions |
| Compensation considered for annual additions | Up to $260,000 | Only compensation within this limit may be used to calculate deferrals and contributions in 2017 |
Employee salary deferral limits in 2017
Participants can elect to defer a portion of their salary into the plan on a pre-tax or Roth basis. In 2017, the salary deferral limit is $18,000, the same as in 2016. For participants age 50 and older, an additional catch-up deferral of $6,000 is permitted, for a total possible deferral of $24,000. These employee deferrals count toward the annual additions cap described above.
2017 salary deferral at a glance
- Standard salary deferral limit (calendar year): $18,000
- Catch-up deferral for age 50 and older: $6,000
- Maximum total deferral for age 50+: $24,000
- Catch-up is only available if allowed by the specific plan document
Total plan limits and how they interact
Plans must ensure that no participant’s total annual additions exceed the annual additions cap. This means employer matching contributions and profit-sharing contributions must be designed so that, when added to the employee’s own deferrals, the total does not breach the limit. Employers can change match formulas within legal bounds, but they must test compliance at the end of the plan year.
It is important to note that the annual additions cap is separate from, and much higher than, the compensation limit used to determine the amount of compensation that can be taken into account for contributions. In 2017, compensation considered for these purposes is limited to $260,000. Contributions and deferrals are calculated on this compensated amount, subject to the caps above.
Matching formulas and non-elective contributions in 2017
Employers often use safe harbor provisions or non-elective contributions to simplify testing and strengthen retirement readiness. Common approaches include matching the first X percent of employee deferrals at a specified formula, or contributing a fixed non-elective amount for eligible participants. Whether a plan uses match or non-elective contributions, the sum of all employer funds counted as annual additions must keep each participant’s total within the annual additions cap. Money purchase plans, by contrast, require a fixed contribution percentage each year that must also respect the same caps.
Compliance, testing, and integration with other plans
Plan sponsors must perform annual compliance testing to ensure contributions and benefits satisfy IRS rules, including limits on discrimination in favor of highly compensated employees. Form 5500 and Form 1099-R reflect how these limits apply in practice. Employees planning for retirement should track both their own deferrals and total plan additions, especially during years when earnings or employer contributions are higher. When balances approach the cap, additional deferrals or excess contributions may need to be redirected to other tax-advantaged accounts.
Practical takeaways for employees in 2017
- The annual additions cap ($54,000 or $60,000 if 50+) is the hard ceiling for combined employee deferrals and employer contributions.
- Elective salary deferrals are limited to $18,000 ($24,000 with catch-up if age 50+), and these count toward the annual additions cap.
- Employer match and profit-sharing can be structured in different ways, but total contributions cannot push a participant’s account past the annual limit.
- Compensation considered for these limits is capped at $260,000 in 2017, so higher earnings do not increase contribution room beyond that amount.
- Coordination with other accounts is important when nearing annual limits; excess amounts may need to go to IRAs or other eligible arrangements.
Definitions and related glossary terms
To interpret limits correctly, it is helpful to understand core terminology. Annual additions encompass all forms of contributions attributable to a participant in a plan year. Salary deferral reflects the portion of wages that an employee elects to contribute on a pre-tax or Roth basis. Matching contributions are employer funds contributed based on the employee’s own deferrals. Non-elective contributions are employer funds contributed regardless of employee deferral elections, often used in safe harbor plans. Compensation considered is the employee’s income level used to compute allowable contributions, subject to IRS caps.