The Internal Revenue Service recently announced its cost-of-living adjustments applicable to dollar limitations for retirement plans and Social Security generally effective for Tax Year 2018 (see IRS Notice 2017-64). Most notably, the limitation on annual salary deferrals into a 401(k) plan will increase from $18,000 to $18,500. The dollar limits are as follows:
LIMIT | 2017 | 2018 |
401(k)/403(b) Elective Deferral Limit (IRC § 402(g))
The annual limit on an employee’s elective deferrals to a Section 401(k) or 403(b) plan made through salary reduction. |
$18,000 | $18,500 |
Governmental/Tax Exempt Deferral Limit (IRC § 457(e)(15))
The annual limit on an employee’s elective deferrals to Section 457 deferred compensation plans of state and local governments and tax-exempt organizations. |
$18,000 | $18,500 |
401(k)/403(b)/457 Catch-up Limit (IRC § 414(v)(2)(B)(i))
In addition to the regular limit on elective deferrals described above, employees age 50 or over generally can make an additional “catch-up” contribution not to exceed this limit. |
$6,000 | $6,000 |
Defined Contribution Plan Limit (IRC § 415(c))
The limitation for annual contributions to a defined contribution plan (such as a 401(k) plan or profit sharing plan). |
$54,000 | $55,000 |
Defined Benefit Plan Limit (IRC § 415(b))
The limitation on the annual benefits from a defined benefit plan. |
$215,000 | $220,000 |
Annual Compensation Limit (IRC § 401(a)(17))
The maximum amount of compensation that may be taken into account for benefit calculations and nondiscrimination testing. |
$270,000
($400,000 for certain gov’t plans) |
$275,000
($405,000 for certain gov’t plans) |
Highly Compensated Employee Threshold (IRC § 414(q))
The definition of an HCE includes a compensation threshold for the prior year. A retirement plan’s discrimination testing is based on coverage and benefits for HCEs. |
$120,000
(for 2017 HCE determination) |
$120,000
(for 2017 HCE determination) |
Key Employee Compensation Threshold (IRC § 416)
The definition of a key employee includes a compensation threshold. Key employees must be determined for purposes of applying the top-heavy rules. Generally, a plan is top-heavy if the plan benefits of key employees exceed 60% of the aggregate plan benefits of all employees. |
$175,000 | $175,000 |
SEP Minimum Compensation Limit (IRC § 408(k)(2)(C))
The mandatory participation requirements for a simplified employee pension (SEP) includes this minimum compensation threshold. |
$600 | $600 |
SIMPLE Employee Contribution Limit (IRC § 408(p)(2)(E))
The limitation on deferrals to a SIMPLE retirement account. |
$12,500 | $12,500 |
SIMPLE Catch-up Limit (IRC § 414(v)(2)(B)(ii)))
The maximum amount of catch-up contributions that individuals age 50 or over may make to a SIMPLE retirement account or SIMPLE 401(k) plan. |
$3,000 | $3,000 |
Social Security Taxable Wage Base
See the 2018 SS Changes Fact Sheet. This threshold is the maximum amount of earned income on which Social Security taxes may be imposed (6.20% paid by the employee and 6.20% paid by the employer). |
$127,200 | $128,400 |