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Understanding 401(k) Loan Rules: What Employers and Plan Sponsors Need to Know

Offering a loan provision in qualified retirement plans such as 401(k), 403 (b), and 457 (b) plans can be a valuable benefit for employees but comes with administrative responsibilities for employers. Whether evaluating a new or existing plan, understanding participant loan rules is essential to maintaining compliance and operating smoothly.

A loan feature is optional if it is not currently included, you can amend your plan document to add it. Once adopted, you must follow both ERISA and IRS requirements designed to protect participants and ensure consistent administration.

Establishing a Compliant Loan Program

Your plan document must state that participant loans are allowed. Details about loans can be in the plan or in a separate written policy. If you use a separate policy, mention it in the plan and give all eligible employees access. Communicate clearly. Offer loans to all eligible employees on fair terms.

Within the ERISA and IRS frameworks, employers have flexibility in structuring their loan programs. As you consider plan design, keep in mind that key decisions include:

Loan Purpose

  • Allow loans for any reason.
  • Restrict loans to hardship‑related needs.

Number of Outstanding Loans

  • Limit participants to one loan at a time.
  • Permit multiple loans (commonly up to five), provided IRS limits are met.

Payment Frequency

  • Payments must be level and made at least quarterly.
  • Many employers align repayment with payroll cycles for consistency.

Repayment Method

  • No specific method is required as long as timing rules are met.
  • Payroll deduction is typically the most efficient and reduces administrative risk.
  • Lump‑sum or partial repayments may also be permitted.

Loan Repayment After Termination

  • Require full repayment upon termination.
  • Require repayment upon termination or upon taking any distribution from the plan.

Minimum Loan Amount

  • No minimum is required.
  • Many plans use a $1,000 minimum to balance access with administrative efficiency.

Maximum Loan Amount

  • Up to 50% of the participants’ vested balance, capped at $50,000 across all loans.
  • Example: A participant with a $200,000 vested balance is still limited to $50,000.

Loan Term

  • Maximum of five years for general‑purpose loans.
  • Longer terms (up to 30 years) are allowed for primary residence loans.

Ongoing Oversight and Documentation

Once your loan program starts, regular review is important. Third-party administrators often handle daily tasks. Still, plan sponsors must oversee operations and keep proper records.

The IRS continues to emphasize the importance of complete and accurate records for each loan. Employers should retain:

  1. Evidence of the loan application, review, and approval.
  2. A signed loan note.
  3. Documentation supporting the use of proceeds for a primary residence, if applicable.
  4. Records of loan repayments.
  5. Documentation of collection efforts for defaulted loans and any related Forms 1099‑R.

IRS audits found that some administrators let participants self-certify eligibility without the right paperwork. This can cause compliance failures and unintended taxable distributions.

In addition, a participant needs to be informed about the terms for taking a loan from the plan. While the Third-party administrator often provides this information, the plan sponsor should ensure that it is, in fact, sharing it. Terms of a loan include many of the factors outlined above, plus the loan fees, the interest rate being charged, default risk, and whether the participant can still be contributing to their 401(k) while the loan is being repaid.

Why a Well‑Designed Loan Program Matters

A well-designed loan program helps employees get funds when they need them. It can help them avoid taxable distributions and protect retirement savings. Loan proceeds are not taxed, and repayments return to the employee’s account to keep growing. For employers, a clear and compliant policy reduces risk and makes plan management easier.

Contact us if you’d like support designing or reviewing your 401(k) loan program. Our team works directly with plan sponsors to simplify retirement plan administration and help ensure your plan remains compliant and effective.

*This overview is based on current IRS and ERISA regulations governing retirement plan loans, including IRC §72(p) and related IRS guidance.

Disclaimer: Armbruster Capital Management’s views as portrayed in this post are subject to change based on market conditions and other factors. These views should not be construed as a recommendation for any specific plan feature or design. Investing involves risks, and the value of an investment will fluctuate over time; one may gain or lose money as a result. Past performance is no guarantee of future results. Third-party sites and materials are available for access at your own risk.