401(k) Loan When You Leave a Job: The Offset Rollover Strategy

If you're leaving a job with an outstanding 401(k) loan, you have more time to avoid taxes and penalties than most articles say — but you need to act before your tax return is due, and you need cash from outside the plan to do it.

What happens to a 401(k) loan when you leave a job

Most 401(k) loan agreements require full repayment within 60–90 days of separation from service (the exact window varies by plan — check your Summary Plan Description). If you don't repay in cash, the plan terminates the loan and satisfies it by reducing your account balance by the outstanding principal. This is a plan loan offset.

No cash is distributed to you. The plan reduces your vested account balance by the loan amount, cancels the loan, and issues a 1099-R reporting the offset as a taxable distribution. If you do nothing, that amount becomes ordinary income — plus a 10% early withdrawal penalty under IRC § 72(t) if you're under 59½.

QPLO vs. deemed distribution — why the distinction matters

Two different loan-ending scenarios look similar but have completely different tax outcomes:

The extended rollover window only applies to QPLOs — plan loan offsets caused by separation from service or plan termination. If you stopped making payments while still employed and the loan defaulted, that deemed distribution cannot be rolled over. The tax and penalty hit is immediate and unavoidable.

The extended rollover window — what changed in 2017

Before the Tax Cuts and Jobs Act of 2017, a QPLO had only a 60-day rollover window — the same narrow window as an indirect rollover on a regular distribution. TCJA extended QPLOs specifically to the federal income tax return due date (including extensions) for the year the offset occurred.²

• Offset occurs in calendar year 2025 → rollover deadline: April 15, 2026; or October 15, 2026 with a Form 4868 extension
• Offset occurs in calendar year 2026 → rollover deadline: April 15, 2027; or October 15, 2027 with extension

Filing a tax extension does not extend the deadline to pay any taxes you owe — but it does extend the QPLO rollover window. If you're close to the April 15 deadline and still sourcing the rollover cash, file Form 4868 immediately to preserve the option through October 15.

The critical catch: you need cash from outside the plan

This is where most people get stuck. Because the plan offset already happened — the plan reduced your account balance to satisfy the loan — no cash is coming to you. To execute the rollover, you must contribute an equivalent amount of cash from another source to a traditional IRA or the new employer's 401(k): savings, taxable brokerage, proceeds from selling other assets, or a family loan.

The contribution equals the outstanding loan balance at the time of offset. It is treated as a rollover contribution — it does not count against your annual IRA contribution limit ($7,500 for 2026; $8,600 if age 50 or older).³ Rollover contributions have no dollar cap.

Documentation: keep the plan's 1099-R showing the offset distribution. You'll report it on your Form 1040 and note the rollover to offset the income. If rolling to a traditional IRA, the receiving institution issues a Form 5498 confirming the rollover contribution.

Real-dollar example

Where to roll it — IRA vs. new employer 401(k)

You have two eligible destinations for the QPLO rollover:

• Traditional IRA — simplest to open, maximum investment flexibility. But: introduces pre-tax money into your IRA pool, which can complicate the Backdoor Roth strategy (see below).
• New employer's 401(k) — if your new plan accepts incoming rollovers, rolling the QPLO here keeps pre-tax money out of your IRA pool. Useful if you rely on the Backdoor Roth. Trade-off: the new plan's fund menu and fees apply.

Interaction with the Backdoor Roth

Rolling a QPLO into a traditional IRA introduces pre-tax dollars into your IRA pool. Under the pro-rata rule (IRC § 408(d)(2)), that pre-tax balance dilutes future backdoor Roth conversions — meaning a portion of any non-deductible IRA contribution you convert to Roth will be taxable. If the Backdoor Roth is part of your strategy, the new employer's 401(k) is generally a better destination for the QPLO. The full mechanics are covered in the Backdoor Roth pro-rata guide.

When NOT to roll over the offset

• You need the liquidity. If you left because of job loss and have no savings buffer, the offset may be your only bridge. The taxes and penalty are painful, but finding $58,000 in cash you don't have is worse. Prioritize financial stability.
• You're in a very low bracket this year. Between jobs with otherwise minimal income, the effective rate on the offset may be low enough that the rollover math weakens. Model the actual marginal rate before deciding.
• You're 59½ or older. No 10% penalty applies. The ordinary income tax remains, but the urgency drops significantly if you're in a manageable bracket.
• The loan balance is small. A $4,000 offset that would cost you $1,200 in taxes may not justify the complexity and cash sourcing effort.

How a fee-only advisor helps

• Confirm the QPLO qualification. A voluntary early loan repayment (not related to separation) doesn't create a QPLO. The advisor reviews your 1099-R and plan documents to confirm the offset was triggered by separation and therefore qualifies for the extended deadline.
• Model the full tax scenario. The after-tax cost of not rolling over depends on your bracket, state tax rate, other income that year, and long-term compounding. An advisor runs the comparison with your actual numbers.
• Source the rollover cash. Which liquid assets to draw from — taxable brokerage (considering capital gains), savings, HSA funds, a securities-backed line of credit — affects the overall tax impact of the rollover strategy.
• Choose the right destination. IRA vs. new 401(k) depends on whether you do the Backdoor Roth, your new plan's quality, and your overall account architecture.
• Coordinate with the rest of the rollover. The loan offset is usually just part of a larger job-change rollover decision — what to do with the remaining 401(k) balance, whether Roth conversions make sense, the Rule of 55 if you're over 55.

Sources

1. IRS.gov — Plan Loan Offsets: confirms QPLO extended rollover deadline to federal income tax return due date including extensions under IRC § 402(c)(3)(C). Values verified April 2026.
2. Federal Register — Rollover Rules for Qualified Plan Loan Offset Amounts (2020-27151): final Treasury regulations (TD 9937) implementing the TCJA 2017 QPLO extended rollover window.
3. IRS.gov — 401(k) limit increases to $24,500 for 2026, IRA limit increases to $7,500: 2026 IRA contribution limits ($7,500 base; $8,600 age 50+). Rollover contributions are separate and not subject to these limits.
4. IRC § 402(c)(3)(C) via law.cornell.edu: statutory text of the QPLO extended rollover window.

Values verified as of April 2026. Your specific plan documents may impose shorter repayment deadlines than statutory law. Verify offset timing and qualification with your plan administrator.