Yes, you can roll a straightforward IRA into a 401(k), but the timing and rules matter

You can move money from a straightforward IRA to a 401(k), but only if your employer's 401(k) plan allows it and you meet a waiting period. Most straightforward IRAs have a two-year restriction: you cannot roll the funds out until you have held the account for at least two years from the date you first contributed to it. After that two-year window closes, the rollover becomes possible.

The reason for this restriction is tax law. straightforward IRAs are designed to be simpler and cheaper for small employers to run than 401(k)s, and the two-year lock-in period is part of that trade-off. Once you clear it, a rollover to a 401(k) works like most other rollovers: the money moves directly from your straightforward IRA custodian to your new 401(k) plan, and you avoid taxes and penalties if the transfer is done correctly.

Not every 401(k) accepts straightforward IRA rollovers, so you will need to check with your new employer's plan administrator before you move forward. Some plans have restrictions on what types of accounts they accept.

Key Takeaways

  • You must wait at least two years from your first straightforward IRA contribution before you can roll the funds into a 401(k).
  • The rollover must go directly from your straightforward IRA custodian to the 401(k) plan to avoid taxes and the 10% early withdrawal penalty.
  • Your employer's 401(k) plan must permit straightforward IRA rollovers, so confirm this with your plan administrator before starting the process.
  • Rolling over a straightforward IRA does not count as a new contribution to your 401(k), so it does not reduce the amount you can contribute on your own that year.

Understanding the two-year holding period

The two-year rule is strict and applies to every straightforward IRA. The clock starts on the date you first put money into the account, whether that money came from your own payroll deduction or from an employer contribution. If you opened your straightforward IRA on March 15, 2023, you cannot roll it over until March 15, 2025, at the earliest.

If you try to withdraw or roll over straightforward IRA funds before the two years are up, the IRS treats it as an early withdrawal. You will owe income tax on the full amount, plus a 25% penalty (not the standard 10% early withdrawal penalty). That 25% penalty is specific to straightforward IRAs and applies only during the first two years.

After the two-year mark passes, the normal early withdrawal rules explore instead. If you are under 59½ and take money out for a reason other than a may have access to exception, you still owe income tax and a 10% penalty — but the 25% penalty no longer applies.

How a direct rollover works

A direct rollover is the safest way to move money from your straightforward IRA to a 401(k). You do not touch the money yourself. Instead, your straightforward IRA custodian (the bank, brokerage, or other institution holding your account) sends the funds directly to your new 401(k) plan. This method avoids taxes and penalties entirely, as long as the receiving 401(k) accepts the rollover.

To start a direct rollover, contact your straightforward IRA custodian and tell them you want to roll over your balance to a 401(k). They will ask for the name and address of the 401(k) plan and the plan administrator's contact information. You will also need to provide your account number at the new 401(k). The custodian handles the paperwork and sends the check or electronic transfer directly to the 401(k) plan — not to you.

The entire process usually takes one to three weeks, depending on how quickly both institutions process the request. During that time, your money sits in transit but remains tax-protected.

What happens if you do an indirect rollover instead

An indirect rollover means the custodian sends the money to you, and you are responsible for depositing it into the 401(k) within 60 days. This method carries real risk. If the money does not reach the 401(k) within 60 days, the IRS treats it as a withdrawal, and you owe income tax and penalties on the full amount.

There is also a withholding issue. When a custodian does an indirect rollover, they are required to withhold 20% of the amount for federal income tax. If your straightforward IRA has $10,000, you receive $8,000 and the custodian sends $2,000 to the IRS. To avoid taxes on that $2,000, you have to deposit the full $10,000 into the 401(k) within 60 days — meaning you have to cover the $2,000 withholding out of your own pocket or the amount will be taxed.

Because of these complications, a direct rollover is almost always the better choice. Ask your straightforward IRA custodian to do a direct rollover, not an indirect one.

Checking whether your 401(k) accepts straightforward IRA rollovers

Not all 401(k) plans are required to accept rollovers from straightforward IRAs. Some employers design their plans to accept only rollovers from other 401(k)s or traditional IRAs. Before you start the rollover process, you need to confirm that your new employer's 401(k) plan allows straightforward IRA rollovers.

Contact your employer's benefits department or plan administrator and ask directly: "Does this 401(k) plan accept rollovers from straightforward IRAs?" They can tell you yes or no, and if yes, they can provide the information your straightforward IRA custodian will need to complete the transfer. If the answer is no, you will need to explore other options, such as rolling the straightforward IRA into a traditional IRA instead.

Some plans also have restrictions on the timing of rollovers or require you to be employed for a certain period before you can roll funds in. Ask about any conditions that might explore to you.

What happens to your straightforward IRA after the rollover

Once the rollover is complete, your straightforward IRA custodian will close the account (assuming you rolled over the entire balance). If you had any outstanding loans against the straightforward IRA, those must be paid back or treated as a withdrawal before the rollover can happen.

The money now sits in your 401(k) as a rollover contribution. It is subject to the 401(k) plan's rules, investment options, and withdrawal restrictions. You cannot touch it before age 59½ without owing a 10% penalty (with some exceptions), and you must begin taking required minimum distributions at age 73 (as of 2023, under current law).

Rolling over a straightforward IRA does not affect how much you can contribute to the 401(k) on your own that year. Your regular 401(k) contribution limit and your rollover are separate, so you can still contribute the full annual amount to the 401(k) in addition to the rollover.

Alternatives if your 401(k) does not accept straightforward IRA rollovers

If your new employer's 401(k) does not accept straightforward IRA rollovers, you have other options. The most common is to roll the straightforward IRA into a traditional IRA instead. A traditional IRA has no restrictions on accepting straightforward IRA rollovers, and the process works the same way: a direct rollover from your straightforward IRA custodian to the IRA custodian.

Rolling into a traditional IRA keeps the money in a tax-deferred account and gives you more investment flexibility than many 401(k)s offer. The downside is that you lose access to the 401(k)'s loan provisions (if your plan offers them) and any employer matching contributions that might come with the 401(k).

Another option is to straightforward leave the straightforward IRA where it is. There is no rule requiring you to roll it over. You can keep the account open, continue to invest it, and leave it untouched until retirement. This works well if you are satisfied with the account's investment options and fees.

Frequently Asked Questions

What if I have not worked at my current job for two years yet?

The two-year rule is based on when you opened the straightforward IRA, not on how long you have worked at your current job. If you opened the account at a previous employer and then changed jobs, the two-year clock still applies to the original opening date. You can roll over the straightforward IRA once two years have passed from that date, even if you have only been at your new job for a few months.

Can I roll over just part of my straightforward IRA?

Yes. You can roll over some of the balance and leave the rest in the straightforward IRA. Your straightforward IRA custodian can split the account and transfer only the amount you specify to the 401(k). The remaining balance stays in your straightforward IRA and continues to grow tax-deferred.

Do I owe taxes on the rollover?

No, as long as you do a direct rollover. The money moves from one tax-deferred account to another without triggering income tax or penalties. If you do an indirect rollover and miss the 60-day important date, or if you do not deposit the full amount (including the 20% withholding), then you will owe taxes and penalties on the shortfall.

What if my straightforward IRA has investment losses?

You roll over whatever the account is worth on the day of the transfer. If the account has lost value, you roll over the lower amount. This does not create a tax deduction or offset. You straightforward move the current balance to the 401(k).

Can my employer force me to roll over my straightforward IRA?

No. A rollover is your choice. Your employer cannot require you to move the money. However, if your employer terminates the straightforward IRA plan, you will need to move the funds somewhere — either to a 401(k) that accepts rollovers, to a traditional IRA, or to another straightforward IRA if you find one.