Glossary term
401(k) Loan
A 401(k) loan lets a participant borrow from a workplace retirement plan if the plan allows loans and the repayment rules are followed.
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What Is a 401(k) Loan?
A 401(k) loan lets a participant borrow from a 401(k) plan if the plan permits participant loans. When the loan follows the plan and tax rules, the borrowed amount is generally not treated as a taxable distribution when the loan is made.
Key Takeaways
- A 401(k) loan is available only if the plan allows it.
- Loan limits, fees, interest, and repayment rules are plan-specific within tax-law limits.
- Repayment generally has to follow a required schedule.
- Leaving the employer can create repayment pressure or plan loan offset risk.
- A 401(k) loan can solve temporary liquidity but can weaken retirement savings if misused.
The participant repays the loan under the plan's terms, often through payroll deductions. If repayment fails, the unpaid amount can become taxable and may also trigger the 10% additional tax if the participant is under age 59 1/2 and no exception applies.
Loan Limits and Repayment
The plan lends money from the participant's vested account balance. IRS guidance generally limits plan loans to the lesser of $50,000 or 50% of the vested account balance, though plan rules can be more restrictive.
Most plan loans must be repaid on a regular schedule, usually with substantially level payments. Many loans have to be repaid within five years, though a longer period may be available for a loan used to buy a main home.
The interest often goes back into the participant's own account. That can make the loan feel like borrowing from yourself, but the account may still miss investment growth on the borrowed amount while the loan is outstanding.
Job Change Risk
A 401(k) loan becomes riskier when the participant leaves the employer. If the loan is not repaid under the plan's rules, the plan may treat the unpaid amount as a distribution or use a plan loan offset. That can create current tax and possible penalty issues.
This risk is especially important before retirement, layoffs, career breaks, or planned job changes. A loan that looks manageable while payroll deductions continue can become more complicated once employment ends.
Loan Versus Withdrawal
A 401(k) loan is different from a hardship withdrawal or ordinary distribution because it is designed around repayment. If the borrower repays on schedule, the transaction may avoid immediate taxation.
That does not make the loan harmless. Repayment can crowd the monthly budget, missed contributions can reduce the employer match, and a second loan can turn a temporary cash need into a recurring retirement drain.
The Bottom Line
A 401(k) loan can provide temporary access to retirement money without an immediate taxable distribution, but it is not free cash. Repayment rules, job-change risk, default risk, missed contributions, and lost investment growth all matter.