Personal Loan vs. 401(k) Loan: Compare More Than the Interest Rate

A personal loan and a 401(k) plan loan solve the same surface problem, “I need cash,” in very different ways.

A personal loan is credit from an external provider. The provider determines eligibility, APR, fees, amount, term, and repayment.

A 401(k) plan loan is available only if the employer’s plan permits participant loans. The IRS sets federal limits and tax rules, and the plan can impose additional requirements.

Do not compare only the quoted interest rate.

Compare:

• whether the 401(k) plan allows loans;
• how much is actually available;
• the repayment schedule;
• what happens if employment ends;
• tax consequences if the plan loan becomes a distribution;
• the effect of removing money from invested retirement assets;
• personal-loan APR and fees;
• payment affordability; and
• whether either option solves the problem without creating a second one.

Not every 401(k) plan offers participant loans.

The IRS says some plans permit loans and the plan document must allow them.

Before comparing anything else, check the plan’s:

• loan availability;
• minimum/maximum amount;
• application process;
• interest formula;
• fees;
• repayment method;
• payroll-deduction rules;
• treatment during leave; and
• treatment when employment ends.

Do not rely on a generic web article for your employer plan’s rules.

Federal rules generally cap a plan loan at the lesser of:

• $50,000; or
• the greater of $10,000 or 50% of the participant’s vested account balance.

The $50,000 side of the limit can be reduced when the participant had other plan loans during the preceding 12 months. The plan itself may set a lower limit or may not permit participant loans at all.

That means “I have $100,000 in my 401(k)” does not automatically mean “I can borrow $50,000.”

Check the actual plan.

IRS guidance generally requires a qualifying plan loan to be repaid within five years, with substantially level payments at least quarterly.

An exception can apply for a loan used to purchase a main home.

Your plan may use payroll deductions or another payment method.

A personal loan can have a different term and payment schedule, depending on the provider.

Compare the required payment, not just the amount you can access.

A personal loan does not normally become due simply because you change employers. You still owe the lender under the loan agreement.

A 401(k) loan is tied to an employer plan.

IRS guidance says a plan sponsor may require repayment of an outstanding loan when employment ends or the plan terminates. If the balance is not repaid, the amount can be treated as a distribution, although rollover rules may provide additional time in some situations.

This is one of the biggest reasons not to compare only interest rates.

Ask:

• Do I expect to stay with this employer?
• What does my plan do with an outstanding loan after termination?
• What is the deadline, if any?
• Would a plan-loan offset occur?
• Could I complete an eligible rollover if needed?
• What taxes or additional tax might apply to my facts?

For a material decision, verify the current plan document and IRS guidance.

A properly structured and repaid 401(k) plan loan is generally not treated as a taxable distribution.

But IRS guidance says an unpaid or noncompliant loan can become a plan distribution.

Previously untaxed amounts may then be included in gross income, and an additional 10% tax can apply in some cases unless an exception applies.

This is tax-sensitive territory.

Do not publish “you will owe a 10% penalty” as a universal rule.

Age, transaction type, rollover treatment, and exceptions matter.

401(k) loan marketing often uses the phrase “you pay interest back to yourself.”

That describes part of the cash flow, but it can hide other tradeoffs.

Money borrowed from the plan may no longer be invested in the same way during the loan period. The IRS itself notes that borrowing from a 401(k) may negatively affect account earnings and reduce money ultimately available for retirement.

The actual effect depends on:

• market returns;
• plan investment treatment;
• repayment timing;
• contribution behavior;
• job changes; and
• how the borrowed money is used.

CashPath should not publish a universal “lost growth” number because future returns are unknown.

A personal loan may involve:

• APR;
• interest;
• origination or other disclosed fees;
• a scheduled monthly payment;
• a fixed repayment term;
• credit inquiry;
• credit reporting; and
• late/missed-payment consequences.

These costs are external and must be compared using the provider’s disclosures.

Use CashPath’s Rates & Fees guidance to compare the complete offer.

• Source of funds: Personal loan: External lender/provider; 401(k) plan loan: Participant’s eligible employer retirement plan
• Availability: Personal loan: Provider/product dependent; 401(k) plan loan: Only if plan permits loans
• Credit underwriting: Personal loan: Provider-specific; 401(k) plan loan: Plan-specific loan process; check the plan document
• APR / cost: Personal loan: Provider-specific APR/fees; 401(k) plan loan: Plan-specific interest/fees
• Federal borrowing limits: Personal loan: Product/provider rules; 401(k) plan loan: IRS limits plus plan rules
• Repayment term: Personal loan: Provider-specific; 401(k) plan loan: Generally within 5 years, with main-home exception
• Job-change sensitivity: Personal loan: Loan remains under contract; 401(k) plan loan: Plan may require action after employment ends
• Retirement investment impact: Personal loan: No direct withdrawal from plan; 401(k) plan loan: Borrowed amount may reduce invested retirement assets
• Tax risk: Personal loan: Normal consumer-loan rules; 401(k) plan loan: Noncompliant/unpaid plan loan can become taxable distribution
• Credit effect: Personal loan: Inquiry/account reporting may apply; 401(k) plan loan: A plan loan follows retirement-plan rules rather than a conventional consumer-loan structure; verify the plan document for the exact process
• Best choice guaranteed?: Personal loan: No; 401(k) plan loan: No

Personal loan

• Amount needed: $________
• APR: ________%
• Fees: $________
• Scheduled payment: $________
• Term: ________ months

Total repayment: $________

401(k) plan loan

• Amount available under plan: $________
• Plan fee(s): $________
• Interest formula/rate: ________
• Payroll/payment amount: $________
• Repayment period: ________

Expected employment stability: High / Medium / Low / Unsure

Then ask which payment structure leaves a safer monthly buffer.

A useful retirement checklist:

• [ ] How much of my vested balance would leave investments?
• [ ] Will I continue retirement contributions while repaying?
• [ ] Does my employer match continue under the same conditions?
• [ ] What investment exposure is reduced?
• [ ] What happens if I leave the employer?
• [ ] Do I understand plan fees?
• [ ] Do I understand tax/rollover consequences if repayment fails?
• [ ] Is the expense important enough to justify using retirement assets?

Plan-specific answers matter more than generic averages.

It may be reasonable to investigate when:

• the plan permits loans;
• the amount is within plan limits;
• repayment clearly fits payroll/cash flow;
• employment is reasonably stable;
• the consumer understands job-change consequences;
• retirement impact has been considered; and
• the alternative external credit is expensive or unavailable.

That is not a recommendation. It is a checklist for deciding whether the option deserves further analysis.

A personal loan may be worth comparing when:

• preserving retirement assets is a high priority;
• the offered APR/fees are acceptable;
• the payment fits the budget;
• the consumer wants the obligation independent of employment;
• a longer/different repayment structure better fits cash flow; or
• the 401(k) plan does not permit loans.

Again, compare the actual offer.

Do not wait until after a job change to discover the rules.

Before borrowing, ask the plan administrator:

1. Does termination accelerate repayment?
2. If the loan is offset, what will be reported?
3. What rollover options may be available?
4. What deadlines apply?
5. What happens to payroll deductions?
6. Who can explain the tax reporting?

IRS rules for plan-loan offsets can be technical. For a large balance, consider qualified tax advice.

Depending on the expense, consider:

• negotiating a bill;
• asking about a payment plan;
• using employer assistance;
• reducing the amount;
• using emergency savings if appropriate;
• delaying a discretionary purchase;
• reviewing existing-credit hardship options; or
• nonprofit credit counseling if the need is debt-related.

The choice is not always “401(k) loan or personal loan.”

Can every 401(k) participant borrow from the plan?

No. The plan must permit participant loans, and plan-specific rules apply.

What is the maximum 401(k) loan?

Federal rules generally cap a plan loan at the lesser of $50,000 or the greater of $10,000 or 50% of vested balance. Prior plan loans during the preceding 12 months can reduce the amount available, and the plan may set a lower limit or not allow loans. Verify current IRS guidance and the plan document.

Do I pay a 10% penalty on a 401(k) loan?

A properly structured/repaid plan loan is generally not a taxable distribution. If it becomes a taxable distribution, an additional 10% tax may apply in some cases unless an exception applies. Do not assume one outcome.

What happens if I change jobs?

The plan may require action on the outstanding balance. IRS rollover/offset rules can apply. Review the plan before borrowing.

Is a personal loan always worse because interest goes to a lender?

No. The 401(k) option has retirement, employment, plan-rule, and tax tradeoffs. Compare the whole structure rather than one interest-flow slogan.

A personal loan is a consumer-credit decision.

A 401(k) loan is a retirement-plan decision with borrowing features.

The most important differences are not only interest rates. They are:

• plan eligibility;
• job-change risk;
• repayment rules;
• retirement exposure;
• tax complexity; and
• the full cost of external credit.

Treat both as serious obligations.

Next step: If you decide not to borrow from retirement savings and an eligible personal-loan option is still worth exploring, CashPath can help you start a request that may continue into a participating-provider process. CashPath is not a lender or retirement adviser and does not guarantee an offer, approval, APR, terms, or funding.

• IRS — further reading
• IRS — further reading
• IRS — further reading
• CashPath — further reading
• IRS — further reading
• IRS — further reading

Last reviewed: September 10, 2026.