Reviewed September 2026.
A 401(k) loan can look cheaper than a credit card because you pay interest back to yourself. It still removes money from invested markets, adds a payroll deduction, and often becomes a taxable distribution if you leave the job before the balance is repaid. Loan vs permanent hardship cash-out: Compare 401(k) loan vs hardship. Plan loan vs outside installment: 401(k) loan instead of a personal loan.
Decision table
| Signal | Lean toward a 401(k) loan | Lean against |
|---|---|---|
| Job outlook | Stable role; you expect to stay through the repayment term | Likely layoff, resignation, or plan change soon |
| Need size | Short, defined amount within plan limits (often up to lesser of 50% vested or $50,000) | Open-ended lifestyle spending |
| Other credit | Personal loan / HELOC / 0% promo would cost more after fees | You have emergency cash or a cheaper installment option |
| Budget | Paycheck can absorb loan + living costs + retirement deferral | Loan payment would force cutting the employer match |
| Alternatives | Outside credit costs more after fees, or a hardship would be a permanent tax hit for a need a loan can cover | You have emergency cash, a cheaper installment option, or already compared personal loan vs card and found a better rate |
Build cash so you are not forced into plan loans: Emergency fund basics, Budgeting basics.
Worked sketch: $8,000 car repair
Sam needs $8,000 for a transmission job. Vested 401(k) is $45,000. Plan loan rate is prime + 1% (illustrative 9%), five-year payroll repayment.
| Option | Rough monthly | Main risk |
|---|---|---|
| 401(k) loan ~$8,000 | About $160–$170/mo (illustrative) | Job exit can accelerate; $8,000 out of markets |
| 36-month personal loan at 11% APR | About $260/mo | Interest paid to a bank, not your account |
| Credit card at 22% APR | Minimums drag; interest stacks | Highest carrying cost |
Sam borrows if (1) the employer looks stable for five years, (2) the payroll hit still leaves room for the match, and (3) spending the emergency fund would leave too little cash for the next surprise. Sam skips the loan if a severance is rumored or the only way to repay is pausing 401(k) deferrals.
Job-change menu when a loan is already open: Roll over a 401(k) when you change jobs. Account types: Roth IRA vs 401(k) starter.
Questions to answer on one page
- What is the exact dollar need and repayment deadline?
- What does the SPD say about loan limits, interest, and termination?
- What is the after-tax cost of the next-best loan or promo APR?
- If I lose this job in 12 months, can I repay the plan on its deadline, or (for a qualifying plan loan offset) replace the offset amount in an IRA or plan by the tax-return due date including extensions for that year (IRS plan loan offsets)?
- Will the payment crowd out rent, insurance, or the match?
Checklist
- Read loan eligibility, maximum, and repayment schedule in the plan documents.
- Price at least one outside installment option with the same payoff date.
- Model a job-loss scenario before you sign.
- Keep contributing at least enough to capture the full match if the budget allows.
- Prefer a hardship comparison only when the plan will not lend or repayment is impossible: Loan vs hardship.
Educational only. Not tax, credit, or investment advice. Loan availability and default tax treatment are plan-specific; confirm with the administrator and a qualified professional.