Financing a Home Without Liquidating Your Portfolio: The Options, and Who Decides

Can you buy a home without selling your investments?

Yes, for most of the purchase price. Financing the home with a mortgage lets the portfolio stay invested; the part you must still fund in cash is the down payment and closing costs, unless you use a structure that pledges securities in place of a down payment.

The decision is less about whether you can borrow than about which kind of borrowing, and who should make the call. This post is written from the lender's seat at Mbanc Private Client Lending, and it is deliberately limited to qualification: what each route requires, what it leaves invested, and what it asks of you in return. It does not tell you whether to sell. That is a tax decision for your CPA and an allocation decision for your wealth manager, and a lender who offers an opinion on either has stepped outside its role.

The desk's own route is the AR Loan, which qualifies you on the portfolio without moving or pledging it: (eligible assets less funds to close less required reserves) / 84 = monthly qualifying income. The full method is in the guide to qualifying for a jumbo loan using assets.

What are the ways to finance a home without liquidating?

There are four financing routes and one non-financing route, and they differ mainly in what they ask of the portfolio. The table sets them side by side.

If your income is strong and documentable, the second route is often the simplest: the Founder Loan reads 12 or 24 months of deposits, and the Operator Loan reads 1099s at 90% of gross receipts (see the jumbo loan guide). If your income is modest relative to your wealth, the third route reads the wealth directly.

How much of the portfolio stays invested if you finance?

Financing keeps roughly the loan amount invested, less the extra closing costs of borrowing; paying cash spends it. A $2,400,000 loan keeps about $2,365,000 more in the portfolio at closing than an all-cash purchase.

Note what the example assumes: the household had $500,000 in cash and still sold some securities to fund the down payment. An asset-based mortgage reduces how much you sell; unless your cash covers the down payment, it does not reduce it to zero. Only a pledge structure does that, at the cost set out in Exhibit 1.

What are the tax considerations, and who decides them?

Your CPA decides them. A lender can describe the public rules at the level of a definition; it should never tell you whether selling or borrowing is better for your taxes.

At that level, two rules frame the question. Under IRS guidance, selling a capital asset produces a gain or loss equal to the difference between your adjusted basis and the amount realized, and gains on assets held more than a year are generally long-term while those held a year or less are short-term. And under current law the mortgage interest deduction is limited to interest on up to $750,000 of acquisition debt, or $375,000 if married filing separately; the One Big Beautiful Bill Act of July 2025 kept that limit in place. On a $2,400,000 loan amount, that limit covers less than a third of the balance. Your CPA, not your lender, decides how this applies to you.

Those two rules pull in different directions, and the right answer depends on basis, holding periods, state taxes, other income, estate plans and much else the desk does not see and should not. What the desk can do is give your CPA a precise scenario: the loan amount, the payment, whether it is interest-only, and the written terms. How CPAs can work alongside the desk is covered in the CPA's guide.

Who should be at the table when you make this decision?

Four advisors: your accountant, your wealth manager, your attorney and your mortgage banker, each answering a different question. A sophisticated client's advisory table has four seats, and Mbanc fills the fourth.

• The accountant answers what selling would cost in tax, and what the interest is worth, if anything, as a deduction.
• The wealth manager answers what the capital is expected to do if it stays invested, how concentrated the portfolio is, and whether a mortgage fits the household's risk.
• The attorney answers how title should be held, whether in your name or a revocable trust, and how the home fits the estate plan.
• The mortgage banker answers what qualifies, at what loan amount, on what structure, and in writing.

Mbanc finances; it does not advise, invest, manage money or prepare returns, and it takes custody of nothing. That is why the AR Loan can read a portfolio managed elsewhere without disturbing the wealth manager's work. The model is set out in the four-seat advisory table.

Does financing add risk that a cash buyer does not carry?

Yes. A mortgage adds a fixed monthly obligation and puts a lien on the home, and that is true however large the portfolio. A borrower who keeps $2,000,000 invested has also taken on a $2,000,000 debt, and the two do not move together.

Markets can fall while the payment stays the same. On an asset-based mortgage, a decline does not affect the loan, which is a real advantage over a securities-based line, but it does reduce the wealth that pays it. On an interest-only loan, the payment rises when the interest-only period ends, and the file is qualified on the fully amortizing payment precisely so that the income supports the later figure.

Paying cash is a legitimate answer, and sometimes the right one: when the household values having no debt over keeping capital invested, when the purchase is small relative to the portfolio, or when the property cannot be financed, such as a co-op or a home under construction.

Can I pay cash now and take a mortgage later?

Yes, through a later cash-out refinance, which returns equity to you as cash and is underwritten like any other loan. Under Mbanc's guideline, refinancing a free-and-clear home is cash-out by definition. On a primary residence, cash-out LTV steps down as the loan amount rises and depends on credit, with no cash-out above $3,000,000; exact LTV is a file conversation. Cash in hand can be capped at $1,000,000 depending on LTV, and the appraised value can be used once you have held title for 6 months; before that, the lower of your purchase price plus documented improvements or the appraisal governs.

Buying with cash first can win a competitive offer, and refinancing afterward can restore liquidity once the dust settles. The financed alternative is to buy with the mortgage from the start; the property-level work (appraisal, title, condo review) follows once you are under contract. The trade-off of paying cash first is that you will go through qualification after the purchase rather than before it, and pay closing costs on the refinance.

Who is this approach not for?

Financing to keep a portfolio invested is not for a buyer who would be uncomfortable carrying a payment through a market decline, a buyer whose loan amount would be under $1,000,000, or one whose wealth is mostly real estate or private company stock that the asset formula does not read.

It is also not the right desk for a buyer whose W-2 income and tax returns already qualify them for a conventional jumbo, which will usually price better. For the buyer it does fit, Mbanc Private Client Lending, the $1,000,000-minimum desk of Mortgage Bank of California Inc. dba Mbanc, starts with a 15-minute call with Mayer Dallal: no application, no credit pull, and a direct answer on what the file would take. The program summary is on the asset-based jumbo loans page.