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Your Down Payment Is in Your 401(k). Should You Borrow It?

By Jeff Moran, NMLS #483943 · September 10, 2026

Three things decide it, and all three can be checked before you request anything. What the plan allows, which the IRS generally caps at the lesser of $50,000 or half your vested balance. What happens to the balance if you leave that employer. And how much cash you still hold the day after closing. Lenders accept the funds. The repayment and the leftover cash are the actual question.

I'm Jeff Moran, a mortgage broker in Bluffton, South Carolina, originating since 1996, NMLS #483943, through C2 Financial Corporation, licensed in fifteen states. This question arrives in a specific shape. Someone has real money saved, and considerably more money in a retirement plan they have been told their whole adult life never to touch. The gap between the down payment they want and the one they have is smaller than that plan balance. So they ask, quietly, half expecting to be told off.

Nobody is going to tell you off. It is an ordinary funding source with an ordinary set of rules, knowable in an afternoon.

What is a 401(k) loan, and how is it different from a withdrawal?

A withdrawal takes money out of the plan permanently. A loan borrows against the balance and pays it back, and the balance stays invested in the meantime except for the portion pledged.

That difference is why the two are treated so differently. A withdrawal before retirement age is generally taxable income and can carry an additional tax on top. A loan taken and repaid on schedule is neither. It is not reported to the credit bureaus either, so it never appears on a credit report and never touches a score.

The IRS guidance on plan loans sets the outer boundaries. The maximum is generally 50% of the vested account balance or $50,000, whichever is less, with a small-balance exception letting a participant borrow up to $10,000 where half the vested balance is under that. Repayment generally runs five years with payments at least quarterly, and one exception is written directly into the law: a loan used to buy a primary residence can run longer. A previous loan outstanding in the last twelve months reduces the $50,000 figure by the highest balance it carried.

Those are ceilings, not entitlements. Plans are allowed to be stricter and many are; some do not permit loans at all. The plan document, not the tax code, governs your account, which is why step one below is a question to the plan administrator rather than a search.

Will the lender count the repayment against my ratio?

Generally no. A loan secured by your own financial assets is in its own category across every major program.

For conventional financing, Fannie Mae's Borrowed Funds Secured by an Asset topic (B3-4.3-15) treats funds borrowed against an asset as acceptable for down payment, closing costs and reserves, on the reasoning that the proceeds represent a return of your own equity. It names 401(k) accounts specifically alongside savings accounts, certificates of deposit, stocks and bonds. Secured loans normally count as monthly debt, and the same topic carves out the exception: where the loan is secured by your financial assets, the payment does not have to be treated as long-term debt.

Freddie Mac reaches the same place in Section 5501.3, which makes proceeds from a loan fully secured by assets other than real property an eligible source, with the payment-exclusion rule cross-referenced at 5401.2(c)(vii).

FHA defines a Retirement Account Loan as one secured by retirement assets and handles it under Asset Requirements in Handbook 4000.1 at II.A.4.d. Loans secured against deposited funds, where the loan can be repaid by cashing in the asset, do not require consideration of repayment for qualifying.

VA says it in one sentence in Pamphlet 26-7, Chapter 4: certain loans secured against deposited funds, 401(k) loans named among them, where the loan can be repaid by cashing in the asset, do not require repayment consideration for loan qualification.

Now the cost, because every one of those programs charges the same price for that exclusion. The asset gets reduced. Fannie cuts it by the proceeds and related fees where the same asset is also counted as reserves. Freddie does the same. FHA reduces the retirement asset by the outstanding loan balance. VA excludes the pledged assets from the asset side of the loan analysis entirely.

Read those together and the trade is clear. The money moves from one column to another. It counts as cash you brought to the table, and it stops counting as money you still have afterward. The file does not get it both ways, and on a thin file the reserve column is sometimes the one that mattered.

One more condition, worth knowing before you ask anyone for money: funds for a loan of this type have to come from an independent source. FHA states it flatly, and Fannie requires evidence that whoever provided the secured loan is not a party to the sale. A plan administrator satisfies that. A seller, an agent or a builder offering to lend you the difference does not.

What happens to the loan if I leave the job?

Plan loans are repaid by payroll deduction, so the repayment mechanism disappears when the paycheck does.

When employment ends with a balance outstanding, plans generally treat the unpaid amount as distributed. That is called a loan offset, and it is taxable income for that year, with the additional tax on early distributions in play depending on your age.

There is relief, and it has a deadline. The IRS describes it under plan loan offsets: where the offset results from plan termination or severance from employment, the amount can be rolled into another eligible retirement plan by the due date of your federal tax return for that year, including extensions, rather than inside the usual 60 days. That is a long runway, and also a cash requirement, because rolling it over means producing the offset amount from somewhere else.

So the risk is not that a job change destroys you. It is that a job change hands you a tax bill and a funding deadline at a moment you did not choose. Anyone whose employment feels less than settled should price that possibility before the loan is requested, not after.

How do I decide between the plan loan and putting less down?

Six steps, in this order, and the first one comes before you look at a single home.

  1. Ask the plan administrator three questions in writing. Does the plan permit participant loans. What amount is available to me right now. What repayment term applies to a loan used to buy a primary residence. Written answers, because the third is where plans differ most and where the tax code's residence exception either does or does not get used.
  2. Price the same purchase twice. Run the rate and best fit tool at the down payment savings alone can reach, then at the one the plan loan would buy. Same home, same day, two structures. You are looking for what the extra down payment buys in monthly cost and mortgage insurance, the same comparison behind whether twenty percent down earns its keep.
  3. Subtract the plan repayment from take-home pay. Not from the ratio, from the household. The ratio will not show it. Your checking account will.
  4. Look at what is left after closing. Add up the down payment, the closing costs and prepaid items, and the escrow deposit, then look at the number underneath. If that number is uncomfortable, the plan loan has solved the wrong problem.
  5. Ask what the reduced asset does to the file. Every program cuts the retirement asset by the outstanding balance. Your loan officer can say in a minute whether that matters in your case or whether the reserve count has room to spare.
  6. Check the cheaper sources first. Gift funds carry no repayment at all. Existing consumer debt is sometimes the better target for the same dollars, the tradeoff behind paying down debt before buying. A plan loan is a real option, not a first resort.

Tell whoever is writing your loan before you request the money, so the paper trail is built forward. The documentation is light. Fannie asks for the terms of the loan, evidence the provider is not a party to the sale, and evidence the funds reached you. FHA asks for the account statement and the outstanding balance. Those are documents you can assemble in advance rather than reconstruct under a closing deadline, which is the same principle behind getting the document list early.

What goes wrong with this?

Borrowing the maximum. The plan quotes an available amount and it reads like a target. It is a ceiling. Take what the purchase needs and leave the rest invested. Every dollar borrowed is a dollar out of the market and a dollar off the reserve column.

The payment the file cannot see. This one causes real trouble later. The repayment is excluded from the ratio by rule, and it comes out of take-home pay on top of the new mortgage payment. Nothing in the loan file flags it, because nothing in the loan file is looking. The only person who can catch a household budget that no longer works is you, before you sign.

Counting the same dollars twice. People build a plan where the retirement balance covers the reserve requirement and the plan loan covers the down payment. It cannot do both. The balance gets cut by the outstanding loan, and the second job disappears.

Requesting it too early. Proceeds released weeks before an accepted offer start a repayment schedule against a purchase that may not happen. You'll want the plan's answers early, and then request the money once the number is real.

An illustration

Numbers below are invented to show the mechanism. Not a quote, not anybody's file.

Someone is buying at $420,000 with $46,000 saved and a vested plan balance of $96,000. Five percent down from savings, or ten percent down with a $21,000 plan loan covering the difference.

OPTION A — 5% down, savings only
Savings on hand                          $46,000
Down payment                            -$21,000
Closing costs and prepaid items          -$9,800
                                        --------
Cash left the day after closing          $15,200

Retirement balance the file counts       $96,000
Added to the monthly budget                   $0


OPTION B — 10% down, funded by a plan loan
Savings on hand                          $46,000
Plan loan proceeds                      +$21,000
Down payment                            -$42,000
Closing costs and prepaid items          -$9,800
                                        --------
Cash left the day after closing          $15,200

Retirement balance                       $96,000
Less the outstanding plan loan          -$21,000
                                        --------
Retirement balance the file counts       $75,000
Added to the monthly budget           $385/month

Same cash in the bank on closing day. Same home. The differences: a mortgage $21,000 smaller, a retirement asset the file counts $21,000 lower, and $385 a month leaving the household that no ratio will ever display.

Whether that trade is worth taking depends on things the arithmetic cannot settle. How secure the job feels. Whether the monthly saving on the mortgage beats $385. What the $21,000 would have earned had it stayed invested, which nobody can tell you and anyone who claims to is guessing. What the arithmetic can do is put all of it on one page, where it stops being a vague worry about retirement and becomes a decision with four numbers in it. You can check the ratio side yourself and bring the result to a conversation.

Common questions

Is a 401(k) loan the same as a hardship withdrawal?

No, and the distinction matters for both taxes and mortgage treatment. A hardship withdrawal removes money from the plan permanently and is generally taxable income, potentially with an additional tax on top depending on your age. A loan borrows against the vested balance and is repaid, usually by payroll deduction, and is neither taxable nor penalized while it stays current. On the mortgage side, a lender treats withdrawn funds as ordinary cash you own, while a plan loan gets handled under the borrowed-funds rules: acceptable as a source, generally excluded from the debt ratio, and offset by a reduction in the retirement asset the file counts.

How much can I borrow from my 401(k) for a down payment?

Two ceilings apply, and the lower one wins. The IRS sets a fixed dollar cap and a separate cap at half the vested account balance, with a small-balance exception that lets a participant borrow a set minimum amount where half the balance falls below it; the current figures are published on the IRS plan-loans page linked above. A loan outstanding in the previous twelve months reduces the dollar cap by the highest balance that earlier loan carried. Separately, your own plan is free to set a lower limit or to prohibit loans entirely, so the number that actually governs your account comes from the plan administrator. Ask for the available amount in writing before you build a purchase around it.

Does a 401(k) loan show up on my credit report?

No. A participant loan from an employer retirement plan is not reported to the credit bureaus, so it does not appear on a credit report, does not affect a credit score, and does not show up in the debt list an underwriter pulls from the report. The underwriter learns about it from the retirement account statement, which shows the outstanding balance, and from the documentation of the loan itself. That is also why the repayment obligation is easy to overlook when you are budgeting: no automated system in the transaction is tracking it for you.

What happens to the loan if I change jobs after closing?

Leaving the employer with a balance outstanding generally causes the plan to treat the unpaid amount as distributed, which is called a loan offset and is taxable income for that year. Where the offset results from severance from employment or plan termination, the IRS allows the amount to be rolled into another eligible retirement plan by the due date of your federal income tax return for that year, including extensions, rather than within the usual 60 days. Rolling it over requires producing that amount of cash from another source, so the practical question is not whether the rule exists but whether you would have the money.

Can a plan loan fund closing costs and reserves too, or only the down payment?

Fannie Mae's borrowed-funds topic lists three acceptable uses: down payment, closing costs and reserves. The proceeds are not restricted to the down payment alone. The catch is in the same rule, where the retirement account is also being counted toward reserves, because its value then has to be reduced by the loan proceeds and related fees. Using plan-loan money to satisfy a reserve requirement backed by the same plan produces no net gain, since the account funding those reserves shrinks by exactly what was borrowed from it.

Jeff Moran · NMLS #483943

Mortgage broker in Bluffton, South Carolina, originating since 1996.

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Jeff Moran, mortgage broker in Bluffton, South Carolina, originating since 1996. NMLS #483943, through C2 Financial Corporation.