Compare safe harbor matching and nonelective contributions, workforce costs and implementation requirements before committing your business.
August 5, 2024 · Financial Forte Staff
Historical article: prepared retrospectively using information available as of August 5, 2024.
A business owner may hear that a safe harbor 401(k) will make contribution planning easier and assume it is a simple year-end election. The design can simplify certain nondiscrimination testing, but it comes with employer contributions, operational conditions and timing rules. Starting the conversation before the fall rush gives the business time to evaluate the commitment.
Compare the design with the workforce and budget before choosing it. A safe harbor match and a safe harbor nonelective contribution can distribute employer dollars differently. Neither label means the plan is exempt from every testing rule or from the employer's responsibilities to operate it correctly.[1]
Understand what the contribution is designed to do
A matching contribution depends on eligible employees making the contributions that trigger the match. A nonelective contribution is generally made for eligible employees under the design even if they do not defer pay. Those mechanisms can produce different participation incentives and employer costs.
For a traditional safe harbor design, a common basic matching formula is 100% of employee deferrals on the first 3% of compensation plus 50% on the next 2%. An employee contributing 5% would receive a 4% employer match under that formula. A common nonelective design uses at least 3% of eligible compensation, subject to the applicable requirements.[1]
Do not confuse those formulas with every ordinary employer match. A company can offer a match without satisfying safe harbor conditions. Automatic-enrollment safe harbor arrangements also have different permitted designs and requirements. The administrator should identify the exact arrangement being proposed and the obligations that accompany it.
Price the workforce, not just the owner's account
Consider a hypothetical company with 20 eligible employees, each earning $50,000 of eligible compensation. Total eligible payroll is $1 million. Assume the traditional basic safe harbor match described above and that every employee contributes at least 5%. A 4% match would cost $40,000: $2,000 for each of the 20 employees, for the year, before administration and other expenses.
Under an illustrative 3% nonelective design, the employer contribution would be $30,000 for the same eligible payroll. If only ten employees contributed enough to receive the full match and the others contributed nothing, the matching cost would instead be $20,000 under these simplified assumptions. The nonelective amount would remain $30,000, or $1,500 for each eligible employee under the stated design.
The comparison shows why participation assumptions matter. It does not establish that the match is always cheaper or that the nonelective approach is always more generous. It also excludes variations in compensation, eligibility, contribution behavior and any additional employer contributions.
The company should ask what it wants the benefit to accomplish. A match can encourage employees to save, while a nonelective contribution can provide an employer-funded benefit to eligible workers who are not contributing. Employees facing tight cash flow may value those designs differently. Their needs belong in the discussion alongside the owner's contribution goal.
A workforce projection should include expected hiring and compensation changes. A contribution that fits today's payroll may cost more after expansion. Ask for a realistic range rather than approving the proposal using only the most favorable participation assumption.
Identify the action before asking for its deadline
Starting a new plan, changing an existing plan and adopting a nonelective safe harbor provision are different actions. Notice, amendment and operational requirements can depend on the design and circumstances. There is no single fall date that answers every safe harbor planning question.
The SECURE Act changed rules for certain nonelective safe harbor notices and retroactive adoption, and IRS Notice 2020-86 explains important distinctions. Those changes do not remove every employee notice requirement or make all matching designs available retroactively on the same terms.[2]
Ask the administrator to provide a dated implementation schedule identifying the design, amendment, employee communication, payroll setup and contribution responsibilities. If a later adoption requires a larger contribution or a different condition, include that cost before comparing it with an earlier implementation.
Avoid announcing a benefit before the documents and payroll process can support it. Employees may make deferral decisions based on what the employer promises. A mismatch between the communication and actual operation can create correction work and undermine confidence in the plan.
Build the review into normal operations
For an ERISA-covered plan, fiduciary duties concerning prudent administration, provider selection and monitoring remain relevant. Safe harbor status does not remove those obligations. The employer should know which tasks a provider performs and who confirms that payroll and contributions follow the adopted terms.[3]
Two useful controls are a compensation-and-eligibility reconciliation and a periodic check of the employer contribution against the formula. In the hypothetical company, review whether the payroll system is actually applying the 3%-plus-2% matching tiers, rather than a flat 4% for every contributor. At a 2% employee deferral, this basic formula produces a 2% match, not the full 4%.
Track missed or incorrect contributions and the time needed to resolve exceptions. Review whether employees understand what they must contribute to receive the match. Higher participation may be encouraging, but it should not be presented as proof that the design caused better retention or improved every employee's financial position.
The trade-off is a continuing funding and administrative commitment. A business with uncertain cash flow should examine whether it can sustain the chosen formula, including the consequences of any later change. Simpler testing does not make the benefit cost discretionary whenever revenue is weak.
Start with the employee census, payroll projection and the amount the business can reliably commit. Then compare lawful designs and their actual implementation requirements. Early planning gives the employer a better chance to choose a benefit it can fund, explain and operate consistently.
Related reading
- Moving From SIMPLE IRA to 401(k): Plan the Transition
- Does Your Plan Need Automatic Enrollment in 2025?
Have more questions about safe harbor 401(k) design and employer responsibilities? Email Dave at dave@financialforte.com to discuss your questions and next steps.
The contact invitation is current; it does not imply this contact path existed on the historical reference date.
Educational information, not personalized investment, tax, legal or benefits advice. Examples use hypothetical assumptions. Verify current rules and your circumstances before acting.
