A cash guarantee mortgage, more commonly sold as a pledged asset mortgage, lets you buy a home with little or no down payment by pledging liquid assets as additional collateral for the loan. Instead of liquidating cash, Treasury securities, CDs, or marketable investments to put 20% down, you deposit them into a segregated account the lender controls. Those pledged funds stand in for the equity a traditional down payment would create, so the loan carries a high loan-to-value ratio on paper but a risk profile the lender treats as if you had put 20% down.
How the Pledge Actually Works
You open a collateral account at or through the lender, fund it with qualifying assets, and sign a collateral pledge agreement that places a lien on those assets for the life of the loan or until your equity reaches a set threshold. You keep legal ownership of the assets the whole time. The lender can only reach them if you default.
The required deposit typically covers the gap between your actual down payment and a 20% equity position, because 80% loan-to-value is the point at which lenders normally require private mortgage insurance.1Consumer Financial Protection Bureau. Homeowners Protection Act (PMI Cancellation Act) Procedures On a $500,000 home with 10% down, you already have $50,000 in equity, so the collateral account needs another $50,000 to close the gap. Put only 5% down, and the gap widens to $75,000.
A third party can fund the account instead of the borrower. A parent pledging assets so an adult child can buy a first home is the usual version of this arrangement, and because no money changes hands, pledging generally sits outside the definition of a taxable gift.
What You Can Pledge
Lenders want collateral they can convert to cash quickly and predictably. The assets accepted at full face value are usually:
- Cash in savings or checking at the lending institution
- U.S. Treasury bills, notes, and bonds
- Fully vested certificates of deposit, typically at the same bank
- Money market funds
Publicly traded stocks, ETFs, and mutual funds are sometimes accepted, but the lender applies a haircut to account for price swings before it could sell. A lender might credit only 50% to 70% of a stock portfolio’s market value, so $100,000 in stock might satisfy only $50,000 to $70,000 of the collateral requirement.
Expect a seasoning rule: the funds generally must have sat in the account for 60 to 90 days before closing. That prevents borrowers from staging a short-term loan to look wealthier than they are.
Why Borrowers Use This Structure
The appeal comes down to two things: skipping mortgage insurance and not selling your investments.
On a conventional loan above 80% LTV, private mortgage insurance runs roughly 0.46% to 1.50% of the loan amount per year. On a $400,000 mortgage, that’s roughly $1,840 to $6,000 annually paid for coverage that protects the lender, not you. A pledged asset mortgage avoids PMI from day one.
The gap versus an FHA loan is wider. FHA charges a 1.75% upfront mortgage insurance premium plus annual premiums of 0.45% to 1.05% depending on the loan term, amount, and LTV.2U.S. Department of Housing and Urban Development. Mortgagee Letter 15-01 – FHA Mortgage Insurance Premiums On a $400,000 FHA loan, the upfront premium alone is $7,000, and the annual charges persist for the life of most FHA loans. Both charges disappear with a cash guarantee mortgage. Because the lender holds both the real estate and a pool of liquid collateral, borrowers can often negotiate a lower interest rate too.
The tax side matters just as much for anyone sitting on appreciated investments. Selling to fund a down payment triggers capital gains: 15% for most filers, climbing to 20% once taxable income exceeds $545,500 for single filers or $613,700 for married couples filing jointly in 2026.3Internal Revenue Service. Topic No. 409, Capital Gains and Losses High earners may owe another 3.8% net investment income tax on top, pushing the combined federal rate as high as 23.8%.4Internal Revenue Service. Net Investment Income Tax Pledging postpones that tax event entirely. You keep the positions, they keep earning, and you haven’t realized any gain. On $100,000 of unrealized gains, the deferred federal tax can easily exceed $20,000.
For a third-party guarantor, pledging is cleaner than gifting. The 2026 annual gift tax exclusion is $19,000 per recipient, but that threshold only matters when assets actually change hands.5Internal Revenue Service. Revenue Procedure 2025-32 – Inflation Adjusted Items for 2026 Pledging without transferring ownership sidesteps the question.
Who Qualifies
Standard underwriting still applies. Lenders look at your credit score, debt-to-income ratio, and employment history the way they would for any conventional loan. Conventional loans generally require a minimum 620 FICO, but lenders offering pledged asset mortgages often set the floor higher, commonly in the 700 to 760 range. Your back-end debt-to-income ratio generally cannot exceed about 43% to 45%, with exceptions available for strong compensating factors.
The defining requirement is simply having the liquid assets to fund the collateral account. This isn’t a product for someone scraping together a minimum down payment. It’s built for borrowers who could pay cash but have good reasons not to.
Availability narrows the field further. Pledged asset mortgages come primarily from private banks, wealth management arms of large banks, and brokerage firms with affiliated lenders. Local credit unions and online mortgage shops generally don’t offer them. Expect the lender to require a broader relationship, usually an investment account or a minimum asset level, as a condition of the loan.
The Risks You’re Taking On
This is where most borrowers underestimate what they’re signing. A pledged asset mortgage puts both your home and your investment portfolio in the line of fire. Default on the loan, and the lender can foreclose on the property and liquidate the pledged collateral to cover any remaining balance. You’re exposed on two fronts instead of one.
If the collateral includes marketable securities and their value drops, the lender can demand that you top up the account to restore the required collateral level. The loan value of the pledged assets must equal or exceed the outstanding loan obligation at all times.6Schwab Bank. Pledged Asset Line Frequently Asked Questions If you can’t meet the call fast enough, the lender can sell assets out of the account at its discretion, potentially locking in losses at the worst possible moment. Some lenders will try to notify you first, but they’re not always required to.
A guarantor’s exposure is just as real. A parent who pledges $80,000 in securities for a child’s mortgage can watch those assets get sold if the child defaults or the market drops. This is a legally enforceable obligation, not a symbolic one.
And then there’s opportunity cost. While the assets are pledged, you can’t borrow against them, can’t liquidate them for an emergency, and can’t move them to another brokerage. The collateral is technically yours, but your ability to use it is frozen for years.
Getting the Collateral Released
The pledge ends when your loan-to-value ratio drops below a threshold set in the agreement, most commonly 80%. Two paths get you there: paying down principal over time, or an increase in the property’s appraised value.
To trigger release based on appreciation, you’ll submit a formal request and pay for a new certified appraisal. Residential appraisals typically cost between $575 and $1,300 depending on location and complexity. If the appraisal shows your loan balance is 80% or less of fair market value, the lender is obligated to terminate the pledge and return the funds. Expect a contractual window of roughly 10 to 15 business days for the return to actually hit your account after verification.
Borrowers who simply make scheduled payments eventually hit the 80% mark through amortization alone, at which point the release becomes routine but still requires a formal request.
When It Actually Makes Sense
The math favors a cash guarantee mortgage when three conditions overlap: you hold a concentrated portfolio with large unrealized gains, you’re in a tax bracket high enough that selling would be expensive, and you plan to keep the home long enough that the interest rate savings and avoided insurance premiums add up. For a borrower with $200,000 in appreciated stock facing a combined 23.8% capital gains rate, the deferred tax alone can top $25,000.
It makes less sense if your liquid assets are mostly cash earning little, because the opportunity cost of locking them up is real but the tax benefit is close to zero. It also gets dangerous when the collateral is volatile stock that could trigger a call during a downturn, forcing you to deposit more at exactly the moment you’d least want to.
Read the pledge agreement before signing anything, pay particular attention to the collateral call and liquidation clauses, and model the scenario where your pledged assets drop 30% in a single quarter. If that scenario doesn’t leave you with enough slack to meet a call without panic, the product is probably not the right fit, however attractive the tax deferral looks on paper.