Safe Harbor 401(k) Retirement Plans: Your Questions Answered

Safe harbor 401(k) retirement plans offer an alternative approach to retirement plan management — but their benefits and requirements aren't always clear at first glance. Get the facts about how these plans work and how your employees may benefit.
Employers constantly balance the need to provide competitive benefits with the time it takes to administer a retirement plan. Safe harbor 401(k) plans may offer a solution to simplify compliance burdens while enhancing an employee benefits package.
Here are some key questions every plan sponsor should understand about safe harbor plans.
Q: What is a safe harbor 401(k) plan?
A: A safe harbor 401(k) plan is a type of employer-sponsored retirement plan that requires businesses to make mandatory employee contributions to participants' accounts, enabling automatic compliance with IRS testing rules. For business owners who want to max out their personal contribution, this can be a great plan type to help attract and retain talent.
Q: How does a safe harbor 401(k) compare to a traditional 401(k)?
A: The primary difference lies in nondiscrimination testing requirements and employer contribution obligations. Traditional 401(k) plans must pass annual Actual Deferral Percentage (ADP) and Actual Contribution Percentage (ACP) tests to ensure that highly compensated employees aren't benefiting disproportionately compared to lower-level employees.
Safe harbor plans eliminate this testing requirement entirely by mandating specific employer contributions.
The "safe harbor" designation means the plan is deemed to meet the ADP and ACP tests without having to perform annual calculations or potentially return excess contributions to highly compensated employees.
Q: What makes a safe harbor 401(k) a good choice for small businesses?
A: Safe harbor plans are beneficial for businesses with a significant population of highly compensated employees — including business owners and executives who want to maximize their retirement savings. These plans may also be ideal for employers who want to demonstrate a strong commitment to employee retirement security through guaranteed employer contributions.
Q: What are the potential advantages of implementing a safe harbor plan?
A: From an administrative perspective, safe harbor plans reduce the year-end testing burden, eliminate the need for corrective distributions and provide more predictable plan costs. Employees are guaranteed employer contributions, creating immediate value for all participants.
Q: What is a safe harbor matching contribution formula?
A: The IRS provides specific safe harbor matching formulas that employers can choose from. The most common is the basic matching formula: 100% match on the first 3% of compensation deferred, plus 50% match on the next 2% deferred, for a maximum match of 4% of compensation when an employee contributes 5% or more. The key requirement is that the formula must satisfy the safe harbor requirements and be applied uniformly to all eligible employees.
Know your options when it comes to choosing an employee retirement plan
Safe harbor 401(k) plans represent a strategic approach to retirement plan management that can benefit the right businesses. The decision should be based on your current plan's testing history, the demographics of your workforce and your overall compensation strategy.
To learn more, reach out to an ADP retirement services specialist or call (800) 432-401K.
ADP, Inc., and its affiliates do not offer investment, tax, or legal advice to individuals. Nothing contained in this article is intended to be, nor should be construed as, particularized advice or a recommendation or suggestion that you take or not take a particular action. Questions about how laws, regulations, guidance, your plan's provisions, or services available to participants may apply to you should be directed to your plan administrator or legal, tax or financial advisor.
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