Glossary term

Non-Highly Compensated Employee (NHCE)

A non-highly compensated employee is an employee who is not classified as highly compensated under retirement plan testing rules.

Updated

May 17, 2026

Read time

3 min read

What Is a Non-Highly Compensated Employee (NHCE)?

A non-highly compensated employee, or NHCE, is an employee who is not treated as a highly compensated employee under qualified retirement plan rules. The NHCE group is important because many 401(k) tests compare outcomes for highly compensated employees against outcomes for NHCEs.

The label is a compliance classification, not a judgment about a person’s job value or financial situation. An employee can be well paid and still be an NHCE if they do not meet the plan-year definition of a highly compensated employee.

Key Takeaways

  • NHCE status is the opposite side of the HCE classification used in plan testing.
  • The NHCE group affects ADP, ACP, and coverage test results.
  • Classification depends on ownership, compensation, lookback-year rules, and plan elections.
  • Plan errors often begin with incorrectly classifying HCEs and NHCEs.

How the Classification Is Used

In the ADP test, the plan compares average deferral rates for highly compensated employees with average deferral rates for NHCEs. In the ACP test, the same general comparison applies to matching and after-tax contributions. Coverage testing also looks at whether enough NHCEs benefit under the plan.

Because the NHCE group is the benchmark, its participation can affect the limits placed on highly compensated employees in a traditional 401(k). If few NHCEs participate or contribute, the plan may have to restrict higher-paid employees, issue refunds, or make corrective contributions.

NHCE vs. HCE

Classification

Role in plan testing

NHCE

Benchmark group used to measure whether the plan benefits rank-and-file employees adequately.

HCE

Higher-paid or ownership group whose benefits are tested against NHCE outcomes.

Key employee

Separate category used mainly for top-heavy testing.

What Participants May Notice

Most employees do not need to track their classification day to day. It becomes visible when the employer communicates testing refunds, eligibility changes, automatic enrollment changes, or plan design changes meant to improve participation. Employers and administrators, however, must classify employees correctly because testing depends on it.

Why the Group Matters to the Plan

The NHCE group is not only a label in an annual report. It is the group whose participation helps determine whether the plan is delivering broad retirement benefits. Strong NHCE participation can make a traditional 401(k) easier to operate, while weak participation can lead to testing failures, refunds to HCEs, or employer correction contributions.

For employees, NHCE status can sometimes mean receiving corrective employer contributions after a failed test. More often, it simply means the employee is part of the group whose participation rate helps determine whether the plan works as intended.

The Bottom Line

An NHCE is the comparison group that anchors many 401(k) nondiscrimination rules. Correct classification helps determine whether the plan’s tax benefits are broadly available rather than concentrated among owners and higher-paid employees.

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