Using a 401(k) to Buy a Home: What the Rules Actually Allow, and What They Don't

I've had this conversation more times than I can count. Someone approaching retirement wants to buy a home, maybe moving closer to family, downsizing, or purchasing a property they plan to rent in a few years. They have money in their 401(k). They want to know if they can use it.

The short answer is yes, with significant caveats. The longer answer is that the math often argues against it, unless you've already exhausted other options.

The Three Ways to Tap a 401(k) for Real Estate

1. Hardship Withdrawal

Some 401(k) plans allow hardship withdrawals for the purchase of a primary residence. You'll pay ordinary income tax on the amount withdrawn, plus a 10% early withdrawal penalty if you're under 59½. The withdrawal is permanent, you can't put the money back.

2. 401(k) Loan

Many plans allow you to borrow up to 50% of your vested balance or $50,000, whichever is less. The loan must be repaid within five years, with interest paid back to your own account. If you leave your job, the full balance typically becomes due immediately, a risk worth taking seriously.

A 401(k) loan charges you interest, but you're paying it to yourself. The real cost is the lost compounding on the balance you borrowed.

3. In-Service Distribution (Age 59½ and older)

Once you reach 59½, you can typically take distributions from a 401(k) without the 10% early withdrawal penalty. You'll still owe ordinary income tax on the amount withdrawn. For someone in or near retirement, this is usually the least costly path if a 401(k) withdrawal is necessary.

The True Cost

The most overlooked cost of raiding a retirement account for real estate isn't the penalty, it's the opportunity cost. Money withdrawn from a 401(k) stops compounding. Over a decade, that foregone growth can significantly exceed the cost of a conventional mortgage.

For every dollar you withdraw from a 401(k) at 60, you may be giving up $2 or more in retirement income by 70, depending on market returns.

Consider These Alternatives First

Before accessing a 401(k), consider: a bridge loan, a HELOC on an existing property, an IRA withdrawal (which has more flexibility than a 401(k) for first-time home purchase), or a seller-financed arrangement. Each of these may preserve retirement savings while still making the transaction possible.