Moving Money From a 403b to a 401k: What You Need to Know

Yes, you can move a 403b balance to a 401k, but only under specific conditions

You can transfer money from a 403b to a 401k, but your new employer's 401k plan must allow it. Not all 401k plans accept transfers from other retirement accounts — some only accept rollovers from other 401k plans. The transfer itself is called a rollover, and when done correctly, it avoids taxes and penalties.

The most important step is checking with your new employer's 401k plan administrator before you do anything. They can tell you whether they accept 403b rollovers and what paperwork they need. If they do not accept them, you have other options, but the 401k-to-401k path will be closed to you.

Key Takeaways

Your new employer's 401k plan must specifically allow 403b rollovers — not all plans do.
A direct rollover (where the money moves between institutions without touching your hands) avoids taxes and penalties entirely.
If you take the money yourself instead of doing a direct rollover, you have 60 days to deposit it in the new account or you will owe income tax and possibly a 10 percent penalty.
You can also roll a 403b into a traditional IRA instead, which is often simpler because IRAs accept rollovers from almost any retirement account.

How a direct rollover works and why it matters

A direct rollover is the safest way to move the money. The 403b plan sends the funds directly to your new 401k plan — the money never comes to you. You fill out a rollover form from your new 401k plan, give it to your old 403b plan administrator, and they handle the transfer. This takes one to two weeks usually.

Direct rollovers are tax-free. You do not owe income tax on the amount transferred, and you do not trigger the 10 percent early withdrawal penalty even if you are under 59½. The IRS treats it as a movement of funds, not a withdrawal.

What happens if you take the money yourself

If your 403b plan sends you a check instead of doing a direct rollover, you have 60 days to deposit that money into a 401k, IRA, or another may be able to access retirement account. If you miss the 60-day window, the IRS treats it as a withdrawal. You will owe income tax on the full amount at your ordinary tax rate, plus a 10 percent penalty if you are under 59½.

Your 403b plan may also withhold 20 percent of the amount for federal taxes before sending you the check. That withheld money goes to the IRS, but you can still deposit the full pre-tax amount into the new account within 60 days — you just have to cover the 20 percent from your own pocket to avoid the tax bill. This is one reason direct rollovers are simpler: no withholding, no 60-day clock, no math.

Rolling into a traditional IRA instead

If your new 401k plan does not accept 403b rollovers, a traditional IRA is usually your next option. IRAs accept rollovers from 403b plans, 401k plans, and most other retirement accounts. The process is the same: you can do a direct rollover from your 403b to an IRA, or take the check yourself and deposit it within 60 days.

One advantage of rolling into an IRA is flexibility — you can choose any IRA provider (a bank, brokerage, or investment company), whereas a 401k rollover locks you into your employer's plan. The downside is that IRAs have lower contribution limits than 401k plans, though this only matters if you plan to add new money later. For a rollover of existing money, the limit does not explore.

Taxes and penalties to watch for

A direct rollover has no tax consequences. You do not owe anything in the year you roll over the money.

If you do a 60-day rollover (taking the check yourself), you owe income tax on any amount you do not redeposit within 60 days. The tax rate is your ordinary income tax bracket — not a flat rate. If you are under 59½ and do not redeposit within 60 days, you also owe a 10 percent early withdrawal penalty on the untouched amount.

If your 403b plan withholds 20 percent before sending you the check, that 20 percent still counts toward the amount you need to redeposit. To avoid a tax bill, you need to deposit the full pre-tax amount, which means covering the 20 percent from your own funds.

What to do before you move jobs

Before you leave your current job, contact your 403b plan administrator and ask for a rollover form. You do not have to use it when ready — you can wait until you have a new job and know whether the new 401k accepts rollovers. But having the form ready means you can act quickly once you know your options.

When you start your new job, ask the benefits or HR department whether the 401k plan accepts 403b rollovers. If it does, they will give you their rollover form. If it does not, ask whether they accept IRA rollovers — most employers allow employees to roll an IRA balance into the company 401k, which is the reverse of what you are doing, but it shows the plan is flexible about incoming money.

Frequently Asked Questions

Do I have to roll over my 403b when I leave my job?

No. You can leave the money in your old 403b plan, roll it to a new plan, or take it as a distribution. Leaving it in place means you keep the same investment options and rules, but you cannot add new money. Rolling it over gives you more control and often lower fees.

What if my 403b has loans against it?

You cannot roll over a 403b that has an outstanding loan. You have to repay the loan first, or the loan balance will be treated as a taxable distribution. Once the loan is paid off, you can roll over the remaining balance.

Can I roll a 403b into a Roth 401k?

Yes, but it is treated as a conversion. You will owe income tax on the pre-tax money you roll over, because Roth accounts hold after-tax money. Ask your new 401k plan whether they offer a Roth option and whether they accept Roth conversions from 403b plans.

How long does a rollover take?

A direct rollover usually takes one to three weeks. The timeline depends on how quickly your old 403b plan processes the request and how quickly your new 401k plan receives and deposits the funds. A 60-day rollover (where you handle the check yourself) depends on you — you have 60 days from the date you receive the check.

What if I have multiple 403b accounts?

You can roll all of them into one 401k or IRA. Each rollover is separate, so you will need to contact each 403b plan and request a rollover. You can do them all at once or spread them out over time — there is no limit on the number of rollovers you can do.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.