Many homeowners underwater on their mortgages search for ways to flip their home finances and dig out from owing more than their home is worth. One possible solution is borrowing from a 401(k) plan to pay down the difference.
Most experts agree that borrowing from your 401(k) plan is a bad idea. However, when market conditions are right — such as when home values are depressed and mortgage rates are low — this can be a viable strategy.
In situations where homeowners are underwater and want to refinance, lenders usually require them to bring money to the table to pay down the difference so the property’s value fully covers the loan.
What Is LTV and Why It Matters if You’re Underwater
If you’re underwater on your mortgage — meaning you owe more than your home is worth — your loan-to-value ratio (LTV) is over 100%. LTV is the ratio between your loan amount and your home’s appraised value, and lenders use it to gauge risk during a refinance.
For example, if your home is worth $200,000 but you still owe $240,000 on your mortgage, your LTV is 120%. That’s a red flag to most lenders, because they typically want the new loan to be equal to or less than the home’s value.
Some loan programs allow high LTVs — even up to 95% or 97% — but when your LTV is too high, you may not qualify for a refinance unless you can bring cash to the table to reduce your loan balance. This is known as a cash-in refinance.
In these situations, a 401(k) loan might help. Borrowing from your retirement account could give you the cash you need to get your LTV back into an acceptable range and move forward with the refinance.
Loan Access May Be Available
One of the big benefits of a 401(k) is that if you’ve been paying into it for any length of time, you will probably have enough cash to cover the deficit on your mortgage. Terms vary, but you can often borrow up to half the value of your account and use the money for whatever purpose you want.
Borrowing from your 401(k) is often straightforward, but not all plans allow loans. You’ll need to check with your plan administrator, and the rules — including how much you can borrow and how long you have to repay — can vary.
The catch is that if you don’t repay the loan on time — or if you leave your job and can’t repay it quickly — the remaining balance may be treated as a taxable distribution and subject to a 10% early withdrawal penalty if you’re under age 59½.
Interest rates on 401(k) loans are usually set by your plan and are often based on the prime rate plus 1% or 2%, though the exact rate depends on your employer’s plan terms.
The other key thing to remember is that while you’re repaying a loan, you’re really repaying yourself — all repayments, including interest, go back into your 401(k) account. However, you’re repaying the loan with after-tax dollars and will still owe income taxes when you eventually withdraw the funds in retirement, meaning you’ll effectively be taxed twice on that money.
Your 401(k) as a Multiplier
The advantage is that taking a relatively small amount out of your 401(k) may enable you to refinance a 5-to-10-times larger mortgage. In some cases, the monthly savings from refinancing your mortgage could outweigh the potential gains your 401(k) loan would have earned in the market — but this depends on many factors, including interest rates, investment performance, and how long you plan to stay in the home.
The downside is that borrowing from your 401(k) will likely raise your short-term debt obligations for the repayment period — typically up to five years. The money you borrow also won’t be able to appreciate tax-free during that time, so if the market surges, you’d miss out on those earnings.
An Example of Possible Savings
Suppose you took out a $250,000 mortgage five years ago at 6% interest on a 30-year loan. Assuming regular monthly payments of $1,500, you’d have that paid down to about $232,000, with 25 years remaining.
In a down market where your home is underwater, let’s say it’s only worth $207,000. If you have good credit and can refinance at 4.5% — with $4,000 in closing costs — you’d need to bring approximately $25,000 to the table to eliminate the negative equity and cover the new loan amount.
Refinancing $211,000 ($207,000 in value plus $4,000 in closing costs) at 4.5% interest over 25 years results in a monthly payment of $1,173 — a reduction of $327 per month and approximately $77,000 in interest savings over the life of the loan.
If you refinance for 30 years instead, your monthly payment drops to $1,089 — saving $411 each month. However, because you’ve extended the term by five years, total interest savings shrink to roughly $44,000.
Neither scenario factors in the $25,000 you borrowed and must repay to your 401(k). Paying that back over five years at 5.25% interest would require a monthly payment of approximately $475 — more than the monthly mortgage savings in either scenario above.
It’s money you’re paying back to yourself, but you still need to come up with $475 a month for the next five years. Terms, market conditions, interest rates, and home appreciation are always in flux, so your actual numbers may look more or less favorable than this example.
Consider These Factors
A 401(k) loan is all about the numbers. You’ll want to weigh your options carefully — ideally with the help of a tax professional or accountant who can walk you through various scenarios. Key factors to consider include:
- The amount you need to borrow. The less you need to borrow to cover your underwater shortfall, the easier it is to meet your repayment obligation.
- How long you have left on your current loan. The more time remaining on your mortgage, the greater your potential savings. Lenders front-load interest in the early years of a loan, so eliminating those unfavorable terms early can compound savings over a longer timeframe.
- The difference in interest rates. The bigger the spread between your current rate and the rate you can refinance at, the more you stand to save. A 4% difference is far more compelling than a 2% difference.
- How long you plan to stay in your home. If you’re not planning to stay for several more years, refinancing may not make sense — you may not be there long enough to recoup the closing costs.
Programs for Underwater Borrowers
Although some government-backed refinance programs like HIRO and FMERR helped underwater borrowers in the past, these specific programs are no longer active. If your mortgage is backed by Fannie Mae, Freddie Mac, the FHA, VA, or USDA, contact your loan servicer to ask about current options.
Some lenders may still offer high-LTV refinancing on a case-by-case basis, especially if your payment history is strong.
Final Thoughts
A 401(k) loan isn’t the right move for everyone, but in the right circumstances, it can help unlock a refinance that meaningfully improves your monthly cash flow and long-term financial outlook. If you think you’re close to qualifying, it’s worth exploring what a refinance could look like for you.
Ready to see if refinancing makes sense for your situation? Get started with Refi.com today — it only takes a few minutes to see your options.
