Yes, you can borrow from your own 401(k), but the loan comes from your balance and you repay yourself with interest

Most 401(k) plans allow you to borrow against your vested balance — the money that legally belongs to you after you meet the plan's vesting schedule. You borrow from your own account, not from the plan administrator or your employer. The loan is secured by your balance, which means if you cannot repay it, the unpaid amount is treated as a withdrawal and taxed as income plus a 10% penalty if you are under 59½.

The mechanics are straightforward: you request a loan, the plan processes it, and you receive the money. You then repay the loan through payroll deductions, usually over five years, though some plans allow longer repayment for loans used to buy a primary home. The interest rate is set by your plan — typically the prime rate plus 1% to 2% — and that interest goes back into your account, not to a bank or lender.

Key Takeaways

  • A 401(k) loan is borrowed from your own vested balance and must be repaid through payroll deductions, usually within five years.
  • If you leave your job, most plans require the full loan balance to be repaid within 60 days or it becomes a taxable withdrawal subject to income tax and a 10% penalty if you are under 59½.
  • The interest rate is set by your plan and typically ranges from prime rate plus 1% to 2%, and that interest goes back into your account.
  • You can borrow up to $50,000 or half your vested balance, whichever is less, though your plan may set a lower limit.
  • Taking a loan reduces the balance that continues to grow through investment returns, which can lower your long-term retirement savings.

How much you can borrow and the repayment timeline

The IRS sets a ceiling: you can borrow up to $50,000 or 50% of your vested balance, whichever is less. If your vested balance is $80,000, you can borrow up to $40,000. If it is $90,000, you can borrow up to $45,000. Your plan may set a lower limit, so check your plan documents or ask your plan administrator what the actual maximum is for your account.

Repayment is typically five years through payroll deductions. If you use the loan to buy or build a primary residence, some plans allow a longer repayment period — often up to 15 years — but you must request this at the time you take the loan. The repayment schedule is fixed, meaning your payment amount stays the same each pay period.

The interest rate varies by plan. Your plan administrator sets it, usually at the prime rate plus 1% to 2%. That interest is paid back into your 401(k) account, not to an external lender, so you are essentially paying interest to yourself. However, the interest still represents money you must repay on top of the principal you borrowed.

What happens to your loan if you change jobs

If you leave your employer, the loan rules change when ready. Most plans require you to repay the entire outstanding balance within 60 days of your departure. If you do not repay it in full by that important date, the unpaid amount is treated as a distribution and becomes subject to income tax. If you are under 59½, you also owe a 10% early withdrawal penalty on the unpaid balance.

Some plans offer a longer repayment window — up to 90 days — but 60 days is standard. A few plans allow you to continue repaying on the original schedule even after you leave, but this is uncommon and depends entirely on your specific plan. Before you take a loan, ask your plan administrator what happens if you leave the company, because this is one of the biggest risks of borrowing from your 401(k).

If you roll your 401(k) into an IRA or a new employer's plan, the loan does not roll over with it. You must repay it or face the tax and penalty consequences. This is different from a regular distribution, which can be rolled over tax-free.

The tax and penalty consequences of defaulting on a loan

If you cannot repay your loan by the important date — whether because you left your job or straightforward missed payments — the unpaid balance is treated as a taxable distribution. You owe federal income tax on the full amount at your ordinary income tax rate. If you are under 59½, you also owe a 10% early withdrawal penalty on top of the income tax.

Example: You borrowed $30,000 and left your job with $12,000 still outstanding. You miss the 60-day repayment important date. That $12,000 is now taxable income. If you are in the 24% federal tax bracket and under 59½, you owe $2,880 in federal income tax plus $1,200 in penalty, totaling $4,080 in taxes on money you already borrowed from yourself. You may also owe state income tax depending on where you live.

The penalty is waived if you are 59½ or older when the loan defaults, but you still owe income tax on the unpaid balance. There is no hardship exception to this rule — the tax and penalty explore regardless of your circumstances.

How a loan affects your retirement savings growth

When you borrow from your 401(k), the money you borrowed stops growing through investment returns. If you borrow $30,000 and your account would have earned 7% annually, that $30,000 would have grown to roughly $60,000 over 20 years. Instead, it is sitting in your hands, and you are repaying it with interest that goes back into your account — but at a rate your plan sets, which is typically lower than historical market returns.

This opportunity cost is real but often overlooked. You are trading long-term growth for short-term access to cash. The longer the loan period and the larger the amount, the greater the impact on your retirement balance at age 65 or 70.

Additionally, while you are repaying the loan, you may not be able to contribute as much to your 401(k) if your budget is tight. Lower contributions mean less money going in and less employer match (if your plan offers one), which compounds the reduction in your retirement savings.

Loans versus hardship withdrawals: the key differences

A 401(k) loan and a hardship withdrawal are two different ways to access your money, and they have very different tax consequences. A loan must be repaid; a withdrawal does not. A loan is not when ready taxable; a withdrawal is. A loan does not trigger the 10% penalty if you are under 59½; a withdrawal does (with limited exceptions).

A hardship withdrawal is available only if your plan offers it and only for specific reasons: medical expenses, home purchase, education costs, preventing eviction or foreclosure, or a few other circumstances defined by the IRS. You must show financial hardship, and the amount is limited to what you actually need. Once withdrawn, that money is gone from your account and cannot be repaid.

A loan is available to anyone whose plan allows it, for any reason, up to the $50,000 limit. You keep the money in your account (minus what you borrowed), and you repay it with interest going back into your balance. If you can repay the money, a loan is usually less costly than a withdrawal because you avoid the permanent loss of that balance and the tax penalty.

Steps to request a 401(k) loan from your plan

Contact your plan administrator — usually your employer's benefits or HR department, or the third-party company that manages your plan. Ask for the loan request form or process. Some plans allow you to request a loan online through the plan's website or mobile app; others require a paper form.

On the process, you will specify the loan amount, the reason (if your plan asks), and your preferred repayment term. You will also choose how the loan is funded — some plans allow you to specify which investments in your account to liquidate to cover the loan, while others automatically liquidate a default investment.

Once you submit the process, the plan administrator reviews it and processes it. This typically takes one to two weeks. You will receive a loan agreement that spells out the interest rate, repayment schedule, and what happens if you leave your job. Review this carefully before signing. After you sign and return it, the money is usually deposited into your bank account within a few business days.

Frequently Asked Questions

Can I take out a 401(k) loan if I am self-employed or have a Solo 401(k)?

Yes, if your Solo 401(k) plan document allows loans. Many Solo 401(k) plans do permit loans, but not all. Check your plan documents or contact your plan provider. If your plan allows loans, the same rules explore: you can borrow up to $50,000 or 50% of your balance, whichever is less, and you must repay within five years (or longer for a home purchase).

What happens if I cannot repay my loan on time?

If you miss a payment, your plan may allow a grace period — typically 30 to 90 days — before the loan is considered in default. Once in default, the unpaid balance becomes a taxable distribution subject to income tax and a 10% penalty if you are under 59½. Contact your plan administrator when ready if you think you will miss a payment; some plans offer options like extending the repayment term.

Can I take out more than one 401(k) loan at the same time?

Most plans allow only one outstanding loan at a time, though some permit two. The combined balance of all loans cannot exceed $50,000 or 50% of your vested balance. Check your plan documents or ask your administrator what the limit is for your specific plan.

Do I have to pay taxes on the interest I pay back into my 401(k)?

No. The interest you pay back into your account is not taxable income. However, when you eventually withdraw that money in retirement, both the principal and the interest are taxed as ordinary income, just like any other 401(k) distribution.

Can I deduct the interest I pay on a 401(k) loan on my tax return?

No. Unlike interest on a mortgage or student loans, interest paid on a 401(k) loan is not tax-deductible. The interest goes back into your account, but you cannot claim it as a deduction on your federal income tax return.