How to Roll Over Your 401(k) to an IRA: The $6,000 Withholding Trap Most People Walk Into

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Did you just leave a job and get a check from your old 401(k) — for less money than your balance showed?

That missing 20% is mandatory federal withholding, and getting it back into your IRA is on you.

Rolling a 401(k) into an IRA is one of the most common moves after a job change. Done the right way, it costs nothing in tax. Done the wrong way, a $30,000 balance quietly turns into a $6,000 tax problem — plus a penalty if you are under 59½. This guide covers the trap, the safe route, and two mistakes most rollover guides never mention.

Flat illustration of money moving from a 401(k) briefcase to an IRA safe, with coins falling out at a warning sign — the 20 percent withholding trap

The $6,000 Trap: What Happens When the Check Comes to You

If the plan pays you directly, the IRS requires 20% withholding — even if you plan to roll every dollar over.

This is called an indirect rollover. Your plan sends the distribution to you instead of to your IRA, and the law forces the plan to hold back 20% of the taxable amount for federal income tax before you see a cent. On a $30,000 balance, that is $6,000 withheld and a $24,000 check in your mailbox.

The catch is that the IRS still expects the full $30,000 to land in your IRA within 60 days. The 60-day clock starts the day you receive the money, not the day the check was mailed. To complete the rollover, you have to make up the missing $6,000 from your own savings.

If you deposit only the $24,000 you received, the missing $6,000 is treated as a taxable distribution. If you are under 59½, the 10% early distribution penalty applies on top of income tax. At a 22% marginal rate, that $6,000 shortfall costs about $1,320 in income tax plus a $600 penalty — roughly $1,920 gone for nothing.

There is one piece of good news. If you do deposit the full $30,000 within 60 days, the $6,000 that was withheld is treated as tax you already paid. It comes back to you as a credit or refund when you file your return. Withholding is a prepayment, not the final tax — but only if you complete the rollover.

Direct vs. Indirect Rollover: The One-Table Comparison

The two methods move the same money, but only one of them can cost you.

Feature Direct rollover Indirect rollover
Who touches the money Plan pays your IRA directly Plan pays you
Federal withholding None 20% mandatory
60-day deadline None Yes, from the day you receive it
If something goes wrong Nothing to miss Shortfall taxed, plus 10% penalty under 59½
One-rollover-per-year rule Does not apply Does not apply to a 401(k)-to-IRA move

How to Do a Direct Rollover in 3 Steps

A direct rollover avoids the withholding, the deadline, and the math entirely.

1. Open the receiving IRA first

Match the account types: a traditional 401(k) goes to a traditional IRA, and a Roth 401(k) goes to a Roth IRA. Rolling pre-tax money into a Roth IRA is a conversion, not a rollover — the untaxed amount counts as income in the year you do it. If you are weighing Roth against traditional, our comparison of Roth 401(k) vs. Roth IRA: what to fund after the employer match walks through the trade-off.

2. Ask your plan administrator for a direct rollover

Contact the plan administrator — usually through your former employer's benefits office or the plan's website — and request a trustee-to-trustee transfer. The plan sends the money straight to your IRA custodian, either by wire or by a check made payable to the custodian for your benefit. Before any distribution, the plan must also give you a written 402(f) notice explaining your rollover options and the tax consequences, so read it before you sign anything.

3. Confirm the money landed

Check your IRA statement to confirm the full balance arrived, then check the Form 1099-R the plan sends you. For a direct rollover of pre-tax money to a traditional IRA, it should show distribution code G and a taxable amount of zero. One more useful fact: rollovers do not count toward the annual IRA contribution limit, so there is no cap on how much you can move.

The Rule of 55: The Benefit a Rollover Erases

If you leave your job in or after the year you turn 55, you can take money from that employer's 401(k) without the 10% early penalty — but only while the money stays in the plan.

The Rule of 55 is an exception to the 10% additional tax on early distributions. It applies to the plan of the employer you just separated from, and the separation must happen during or after the calendar year you turn 55. It does not apply to IRAs, and it does not apply to 401(k)s from earlier jobs. Qualified public safety employees qualify from age 50 under a separate provision.

Here is the part almost nobody is told on their way out the door: the moment you roll that balance into an IRA, the exception is gone for good. IRA withdrawals before 59½ face the 10% penalty unless a different exception applies, and rolling the money back into a plan later does not restore the Rule of 55. The exception attaches to a separation that already happened.

If you are between 55 and 59½ and might need the money, take the penalty-free distributions you need from the plan first, then roll over the rest once you reach 59½. Getting the order right is worth thousands. If you left a job recently, our guide to what happens to your 401(k) when you quit covers the other choices you face at the same time.

Your Money Arrives as Cash — Reinvest It

A rollover moves cash, not your investments.

Your old plan sells your holdings and sends cash to the IRA. That cash does not automatically buy anything. Until you choose investments inside the IRA, your retirement money is sitting on the sidelines — often in a money market or settlement fund that pays very little. Check what your IRA defaults to and make your choices deliberately, rather than assuming the money is invested because the rollover finished.

See How Reinvested Money Compounds Over Time

The "Once a Year" Myth

The one-rollover-per-year rule does not limit 401(k)-to-IRA rollovers.

You will read that you can only do one rollover a year. That rule is real, but it applies only to indirect rollovers between IRAs — one in any 12-month period, counting all of your IRAs together. It does not apply to rollovers from an employer plan like a 401(k) into an IRA, and it does not apply to direct trustee-to-trustee transfers or to Roth conversions.

So the myth cuts both ways: it should never stop you from doing a direct 401(k)-to-IRA rollover, and it should make you think twice before doing casual indirect rollovers between your own IRAs.

Check These Before You Start

Three details catch people after the rollover is done.

  • Required minimum distributions can't be rolled over: If you are subject to RMDs, take this year's distribution first. That amount cannot go into an IRA.
  • Small balances can be forced out: If your balance is under $5,000, your former employer may require you to move it. A rollover to an IRA beats cashing out and paying tax plus a possible penalty.
  • Leaving the country changes the math: If you are moving abroad, different withholding rules can apply to your 401(k). See our guide to what happens to your 401(k) when you leave the USA before you move the money.
  • Your situation may have wrinkles: After-tax contributions, outstanding plan loans, and employer stock each have their own rules. When in doubt, check with a tax professional before you move the money — this guide explains the rules, it is not personal tax advice.

Key Takeaway

Most rollover pain comes from one avoidable choice: letting the plan pay you instead of your IRA. A direct rollover skips the 20% withholding, the 60-day deadline, and the risk of a surprise tax bill. And if you are 55 or older, think twice before moving the money at all — the penalty-free access in your employer's plan does not survive the trip to an IRA.

Ask for the direct rollover, confirm the full balance landed, then reinvest the cash — in that order.

Sources:

• IRS Topic No. 413, Rollovers From Retirement Plans — irs.gov/taxtopics/tc413
• IRS, Rollovers of Retirement Plan and IRA Distributions
• IRS, Retirement Topics — Termination of Employment
• IRS Topic No. 558, Additional Tax on Early Distributions From Retirement Plans

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