Does a 401k Loan Count as Income or Stay Tax-Free?

A 401(k) loan does not count as income when you take it, as long as the loan meets the requirements in Section 72(p) of the Internal Revenue Code. The money is a loan against your own retirement savings, not a distribution, so it is not subject to income tax or the 10% early withdrawal penalty. That treatment holds only while the loan stays in compliance. If you default or the loan violates the rules, the IRS reclassifies the outstanding balance as a taxable distribution in the year the failure occurs.¹

What Keeps the Loan Out of Your Taxable Income

Section 72(p) starts from the position that any loan from a qualified retirement plan is a taxable distribution. Your loan escapes that default only if it meets every statutory requirement. Miss one, and the full amount is taxable the moment it’s disbursed.

The dollar limit is the lesser of $50,000 or half your vested account balance. The $50,000 ceiling is reduced by the difference between your highest outstanding loan balance in the prior 12 months and your current balance, which stops anyone from repaying a loan and immediately re-borrowing to reset the cap.² There’s a floor for small balances: if your vested balance is under $20,000, you can borrow up to $10,000 even though that exceeds the 50% limit.³

Three structural rules apply to every loan:

The loan terms must require full repayment within five years.
Payments must be substantially level, with installments due at least quarterly.
A legally enforceable written note must set out the amount, term, and interest rate.

The only exception to the five-year rule is a loan used to buy your principal residence. The statute does not set a maximum term for those; the plan document controls, and 15- to 30-year terms are common.⁴

Stay inside these limits and keep up with payments, and the borrowed money never appears on your tax return.

When a 401(k) Loan Does Become Taxable Income

Two situations account for most cases where a loan flips into taxable income: missed payments and leaving your job. A loan that violated the rules at the start is a third, less common trigger.

Missed Payments

Many plans offer a cure period after a missed installment. The maximum allowable cure period runs through the last day of the calendar quarter following the quarter in which the payment was due. A payment missed in February, for example, can be cured through June 30.⁵

If you don’t make up the missed payment plus accrued interest by the end of that period, the entire outstanding balance becomes a deemed distribution. The IRS treats it as though you withdrew the money and taxes the full amount as ordinary income. Plans are not required to offer a cure period at all; some treat a missed payment as an immediate default.⁵

Leaving Your Job

Termination, layoff, or resignation usually accelerates the payoff timeline. Many plans require full repayment within 60 to 90 days after separation. If you don’t repay by the plan’s deadline, the plan offsets your account balance by the unpaid loan amount, and that offset is a distribution.

Terms Out of Compliance

A loan that exceeded the borrowing limit at origination, or that had a non-residence repayment term longer than five years, is treated as a taxable distribution in the year the violation occurred.¹

Deemed Distribution vs. Loan Offset

Both add the outstanding balance to your taxable income, but they are not the same event, and the difference decides whether you can undo the tax hit.

A deemed distribution happens when you default while still employed and the plan can’t legally distribute your account balance. The IRS treats the outstanding amount as a distribution for tax purposes, but the plan does not reduce your account. You still owe the loan, and the balance stays on the plan’s books. A deemed distribution cannot be rolled over into an IRA or another retirement plan.²

A loan offset is a real distribution. The plan reduces your account balance to pay off the loan, which requires a distributable event such as leaving your job. Because it’s an actual distribution, an offset is eligible for rollover.⁶

After a deemed distribution, you can still make late repayments. Those payments increase your tax basis in the plan, which reduces the tax on future withdrawals.²

Rolling Over an Offset to Avoid the Tax

If your account is offset after you leave a job, you can deposit an equivalent amount of cash into an IRA within the rollover window and owe no tax on the offset.

For a standard loan offset, the usual 60-day rollover rule applies. You have 60 days from the offset date to contribute cash equal to the offset amount to an eligible retirement plan.⁶

A qualified plan loan offset (QPLO) gets a longer window. A QPLO occurs when the offset is triggered specifically by separation from employment or plan termination, and the loan was in compliance immediately before that event. For a QPLO, the Tax Cuts and Jobs Act extended the rollover deadline to your tax filing due date for that year, including extensions. An offset in 2026 with a filed extension could be rolled over as late as October 2027.⁶

An offset is not a cash distribution. The plan zeroes out your loan by reducing your account, so no check arrives. To complete the rollover you have to come up with the cash from another source. For someone who just lost a job, that is not always realistic. When it is, the tax savings on a $20,000 or $30,000 offset justify the effort.

What the Tax Bill Looks Like

Whether the default produces a deemed distribution or an offset, the plan administrator reports it on Form 1099-R. You include the taxable amount as ordinary income on your return for the year the default occurred.⁶

If you’re under age 59½ when the deemed distribution or offset happens, the IRS adds a 10% additional tax for early distribution on top of the regular income tax.⁷

The numbers add up quickly. A $20,000 default for someone in the 24% federal bracket produces $4,800 in income tax plus a $2,000 early withdrawal penalty, or $6,800 in federal tax before any state income tax. A loan offset rolled over within the deadline owes nothing.

1
Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts
2
Internal Revenue Service. Retirement Plans FAQs Regarding Loans
3
Internal Revenue Service. Issue Snapshot – Borrowing Limits for Participants With Multiple Plan Loans
4
Internal Revenue Service. Retirement Topics – Loans
5
Internal Revenue Service. Retirement Plans – Issue Snapshot Plan Loan Cure Period
6
Internal Revenue Service. Plan Loan Offsets
7
Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions