There's a $380,000 mistake people make with their 401(k) when they buy a house, and it isn't the one the gurus warn you about.
The mistake isn't touching your retirement money. It's touching it the wrong way.
Same account, same house, two doors. Walk through one and you can use the money temporarily, repay the account with interest, and keep building toward retirement. Walk through the other and you can lose a third or more of the money to taxes and penalties before you ever get the keys, then miss decades of compounding on what permanently left the account.
A 401(k), 403(b), or TSP loan generally avoids current taxes and early-withdrawal penalties. You repay the principal and interest back into your retirement account, and the payment generally doesn't count in your mortgage debt-to-income ratio.
A 401(k) withdrawal before age 59½ to buy a home is generally taxable and subject to the 10% federal early-distribution tax. Buying your first home does not create a 401(k) exception.
In a no-income-tax state, putting $30,000 in your pocket could require withdrawing more than $44,000 under a 22% federal tax assumption. In California, the same example could require more than $53,000.
Generally, you can borrow the lesser of 50% of your vested balance or $50,000, although plan rules and existing loans can change the amount available.
IRAs never allow loans. Traditional IRAs do have a $10,000 lifetime first-home exception to the early-withdrawal penalty, and Roth contributions can generally be withdrawn tax- and penalty-free.
Don't make your retirement account the only source of money if you can avoid it. Keeping emergency reserves after closing matters.
Run the mortgage numbers before touching the account, then confirm the exact loan or withdrawal rules with your plan administrator and tax professional.
Half the live shows we do, someone asks some version of the same question: I don't have enough cash for the down payment, I've got money in a 401(k), should I touch it, and how?
So here's how using retirement money to buy a house actually works, which accounts you can tap, and why borrowing and withdrawing are two very different moves.
One ground rule first. Every retirement plan is different. A 401(k) or 403(b) is allowed to offer loans, but your employer doesn't have to offer them or use the same terms as another plan. TSP has its own rules. We're covering the general mechanics and how they interact with your mortgage. Confirm the specifics with your plan administrator and, before taking a taxable distribution, your tax professional.
When people ask about using their 401(k), they're really asking one of two questions.
Many employer retirement plans, including 401(k)s and 403(b)s, allow you to borrow from the account. TSP also has a loan program. You can also withdraw money, which is the only option with an IRA because you cannot borrow against an IRA.
If you're going to use retirement money to buy a home, a plan loan is usually the far less destructive path.
With a loan, money temporarily leaves the investments inside your retirement account, but it doesn't leave your retirement plan permanently. You repay the principal plus interest back into the account. You're essentially replacing part of your market investment with a loan to yourself.
There is an opportunity cost. If the market earns 10% while your loan is charging 7%, those borrowed dollars missed some upside. If the market falls, the opposite can happen. Either way, that's very different from a withdrawal, where the money leaves permanently and taxes and penalties can take a large bite immediately.
The $380,000 figure comes from that withdrawal side.
Let's look at both doors.
The simplest rule to remember is that you can generally borrow the lesser of 50% of your vested balance or $50,000. Some plans can allow up to $10,000 even when half your vested balance is lower, and existing loans can reduce what you're allowed to take.
If you have $500,000 vested, half is $250,000, but you're generally capped at $50,000. If you have $40,000 vested, half is $20,000, so that's normally your ceiling.
Vested means the money is actually yours. Your own contributions are yours, while employer contributions may require you to stay with the company for a certain period before you fully own them.
Most plan loans have to be repaid within five years. Loans used to purchase your primary residence can qualify for longer terms if your plan allows it. TSP residential loans, for example, can run as long as 15 years.
Say you're buying a $400,000 house with 3% down. That's $12,000. Add another $10,000 for closing costs and prepaids, and you might need around $22,000 from the account. Instead of permanently pulling that money out, you borrow it and repay it over the plan's allowed term.
The advantages are real:
No 10% early-withdrawal penalty when the plan loan follows the rules.
No current income tax on the amount borrowed.
You repay the money with interest back into your retirement account.
The payment generally does not count in your mortgage debt-to-income ratio because mortgage guidelines typically exclude qualifying loans secured by your own financial assets.
The trade-off is that the borrowed money is no longer invested in the funds you originally owned while the loan is outstanding. Your return on that portion is effectively the interest you're paying back into the account instead of whatever the market would have done.
That's the comparison to make. Not "free money" versus retirement. It's a temporary loan from the account versus permanently taking money out of it.
Changing jobs is where you need to pay attention.
Depending on your plan, leaving your employer can change how the outstanding loan is handled. If the remaining balance is offset against your retirement account after you leave, current tax rules generally give you until the due date of your federal tax return, including extensions, to replace that amount in an IRA or another eligible retirement account.
If you don't replace it, the unpaid amount can become a taxable distribution and, if you're under 59½ and no other exception applies, trigger the 10% federal additional tax.
That matters because someone who needed to borrow $20,000 to buy the house may not suddenly have $20,000 available after changing jobs.
So if you're considering a job change, get the exact rules from your plan before you borrow.
Now let's look at the other option.
If you're under 59½ and simply withdraw money from your 401(k) to buy a home, buying the house does not exempt you from the 10% federal early-distribution tax. That first-home exception applies to IRAs, not 401(k)s.
You also owe ordinary income tax on the taxable distribution. If you live in a state with income tax, that gets added too. California generally adds another 2.5% early-distribution tax on top of its regular state income tax.
Let's use two examples.
Assume you're under 59½, no separate exception applies, and the additional withdrawal falls in a 22% federal marginal tax bracket.
No state individual income tax keeps the math relatively simple.
If you withdraw $30,000:
Federal income tax at 22%: $6,600
Federal early-distribution tax at 10%: $3,000
Total illustrative tax cost: $9,600
Money left: about $20,400
If you actually need $30,000 in your pocket, you'd have to withdraw roughly $44,000 under those assumptions.
Now use the same 22% federal bracket and an illustrative 9.3% California marginal income-tax rate:
Federal income tax: 22%
Federal early-distribution tax: 10%
California income tax: 9.3%
California early-distribution tax: 2.5%
That's an illustrative combined hit of 43.8%.
A $30,000 withdrawal would leave roughly $16,900 after those assumed taxes and penalties.
To actually net $30,000, you'd need to pull roughly $53,000 from the retirement account.
Your actual tax bill depends on your income, tax bracket, state and whether another exception applies. That's why you don't make the withdrawal based on an article or a mortgage guy's back-of-the-napkin math. Run the actual distribution through your tax professional first.
But the point is clear: the amount leaving your retirement account can be dramatically larger than the amount you need for the house.
Then comes the second cost.
Say $50,000 permanently leaves your retirement account at age 35. At a hypothetical 7% annual return, that $50,000 would grow to roughly $380,000 by age 65.
That's not a prediction of what the market will return. It's the math showing the opportunity cost of permanently removing $50,000 and never putting it back.
With the loan, you repay the principal and interest into the account. With the withdrawal, the money you pulled never gets another 30 years to compound.
That's why these two doors are not remotely the same.
IRAs follow different rules, and you cannot borrow against an IRA.
A traditional IRA has a first-time homebuyer exception that allows up to $10,000 over your lifetime to be withdrawn without the 10% federal early-distribution tax. You generally still owe ordinary income tax on the taxable distribution.
And "first-time buyer" doesn't necessarily mean you've never owned a home. For this rule, it generally means you haven't had an ownership interest in a principal residence during the previous two years.
A Roth IRA gives you more flexibility because regular contributions generally come out first. If you've contributed $12,500 over the years and the account is now worth $15,000, that $12,500 of contributions can generally be withdrawn without tax or penalty.
Once you start touching the earnings, the rules get more complicated. The Roth five-year rule and the $10,000 first-home exception can affect whether those earnings are taxable or subject to the additional tax.
That's where I stop trying to turn mortgage clients into tax accountants. If you're getting into Roth earnings, talk to your tax professional before you pull the money.
Here's the caution from the mortgage side: we'd rather not see your retirement account become the only source of money you have.
If you have $20,000 sitting in checking and that's your entire emergency fund, draining it to buy the house may leave you in a worse position than keeping the cash available and using a retirement-plan loan for part of the transaction.
Owning a home with zero reserves is uncomfortable. Water heaters break. Insurance deductibles happen. Cars don't care that you just bought a house.
There are absolutely buyers who use a 401(k) loan for nearly all their cash to close, and sometimes that is the right trade-off. But before assuming your retirement account is the only path, look at the low- and no-down-payment options available to you too.
Those are two separate questions.
How much you can borrow depends on your vested balance, your plan's rules, the normal 50%/$50,000 limit and any outstanding plan loans.
How much you need is your total cash to close: down payment, closing costs and prepaids.
Prepaids are items like interest, homeowner's insurance and property taxes collected around closing. Closing costs are the one-time charges associated with getting the loan and completing the transaction.
As a rough planning range, closing costs and prepaids might add another 2% to 4% of the purchase price beyond your down payment, depending on the loan, property, location and how the transaction is structured.
Getting those two numbers to line up is exactly what a Roadmap call is for. We go through your income, your likely qualification range, your total cash to close and what the retirement-loan repayment does to your monthly budget before you commit to anything.
Josh has directly closed more than 1,300 loans, and one thing that experience teaches you is that qualifying for the mortgage isn't enough. The payment still has to work after the mortgage, retirement-loan repayment and everything else in your life gets paid.
Get that number on paper first. Then take it to your plan administrator and find out exactly what the retirement loan looks like.
When Dave Ramsey says never use your 401(k) to buy a home, we have a hard time with the absolutism.
The goal isn't to choose homeownership instead of retirement or retirement instead of homeownership. For most people who want to own, the goal is to build both without unnecessarily destroying one to get the other.
If retirement money really is part of the plan, here's how we'd think about the options:
Usually best: Borrow what you need, repay it over a term that fits your budget, and keep making your normal retirement contributions if you can. You temporarily move part of the account from market investments into a loan to yourself, then replenish the account with principal and interest.
Second choice: Borrow the money but temporarily reduce retirement contributions because the mortgage plus loan repayment makes the monthly budget too tight. You give up some future contributions, but you avoid permanently withdrawing the existing balance.
Most expensive: Withdraw the money, pay the taxes and early-distribution penalties, and permanently remove the balance from retirement.
Even that last option can be the right decision for a specific person.
Two recent borrowers Josh worked with each withdrew around $50,000 because buying the home mattered enough to them to accept the financial cost. One long-time renter had promised his wife they'd raise their kids in a home they owned. Another moved his family from a cramped apartment in an area they wanted to leave into a home with a yard and schools they preferred in upstate Pennsylvania.
Was the retirement withdrawal optimal on a spreadsheet? No.
Did they understand the cost and decide the life outcome was worth it? Yes.
That's why words like never and always usually fall apart when they run into real people.
Start with the conversation, not the withdrawal form.
First, figure out what you actually qualify for, what your full cash requirement looks like and whether a retirement-plan loan payment fits comfortably into the monthly budget. Then go to your plan administrator and confirm exactly how much you can borrow, the interest rate, repayment period and what happens if you leave your employer.
If the numbers work, you have an option.
If they don't, you've learned that before doing something irreversible. The better answer may be saving longer, buying at a different price point, using another loan program or adjusting the plan entirely.
If you just want to know where you stand first, start with the two-minute readiness quiz.
Stop guessing what you can really afford
It starts with a Discovery Call, a straight conversation about your real numbers. Josh and his team show you the price range and loan options that fit, and map out every step to closing. They handle your loan directly, never a referral, so you tour with confidence and write offers sellers take seriously.
For most buyers who have both options, a 401(k) loan is far less expensive than an early withdrawal. The loan generally avoids current income taxes and the 10% federal early-distribution tax, and you repay the principal and interest back into your retirement account.
The trade-off is that the borrowed dollars are temporarily out of your market investments, so you can miss investment gains while the loan is outstanding. A withdrawal permanently removes the money and can create a large immediate tax bill on top of the lost future growth.
Generally, you can borrow the lesser of 50% of your vested balance or $50,000. Some plans can allow up to $10,000 when half your vested balance would otherwise be lower, and existing outstanding plan loans may reduce what you can borrow.
Your plan administrator's portal should show your actual available amount, interest rate and repayment options.
Generally, no. Mortgage guidelines typically exclude qualifying loans secured by your own financial assets, including 401(k) loans, from the debt-to-income calculation.
That doesn't mean the payment doesn't matter to your real-world budget. You'll still have money coming out of every paycheck, so we include that payment when deciding whether the overall homeownership plan is comfortable.
That depends on the plan.
If the unpaid balance is offset against your retirement account after you leave, current tax rules generally give you until your federal tax-return due date, including extensions, to replace that amount in an IRA or another eligible retirement account.
If you don't replace it, the unpaid balance can become taxable and may also trigger the 10% federal additional tax if you're under 59½ and no other exception applies.
Yes, up to a $10,000 lifetime limit under the first-home exception. You generally still owe ordinary income tax on a taxable traditional IRA distribution.
For this rule, "first-time homebuyer" generally means you haven't owned a principal residence during the previous two years.
Your regular Roth IRA contributions generally come out first and can be withdrawn without tax or penalty.
Once you start withdrawing investment earnings, the rules depend on factors including how long the Roth has been open and whether you qualify for the first-home exception. That's where you should confirm the tax treatment before taking the distribution.
A lot.
For an under-59½ buyer with no applicable exception, a 401(k) withdrawal used to buy a home is generally subject to ordinary income tax plus the 10% federal early-distribution tax. State taxes can add substantially more.
Using an illustrative 22% federal marginal rate, someone in Texas or Florida might need to withdraw roughly $44,000 to net $30,000. Using the same federal assumption plus a 9.3% California marginal rate and California's 2.5% additional tax, it could take roughly $53,000 to net the same $30,000.
Those are examples, not tax quotes. Your actual cost depends on your income, state and tax situation, so run the withdrawal through a tax professional before touching the money.