Can You Use an HEI to Buy Another House? (2026 Guide)

In This Article:

• Can You Use HEI Money for a Down Payment?
• How Long Does It Take to Get HEI Funds?
• Do HEI Funds Need to Season Before Being Used as a Down Payment?
• Does an HEI Affect Your Debt-to-Income Ratio?
• Can You Put an HEI on the New House?
• Will Buying Another Home Break Your HEI Agreement?
• Scout’s Math Corner: How Expensive Is an HEI Down Payment?
• Is an HEI or HELOC Better for Down Payments?
• What Mistakes Do Buyers Make with an HEI Purchase?
• Common Questions

If you are holding a low primary mortgage rate in Scottsdale and eyeing a move-up or investment property, you are likely asking: can you use an HEI to buy another house? The short answer is yes, major home equity investment providers permit proceeds to be used as down payment capital. However, the real friction isn’t what the HEI company allows, but how your new mortgage lender underwrites the lien and whether Fannie Mae guidelines permit shared appreciation on your target property.

If the product itself is new to you, start with our Arizona home equity investment guide. If protecting your existing rate is the entire point of the exercise, our Protect My Rate hub covers the wider set of options.

Can You Use HEI Money for a Down Payment?

Yes, Home Equity Investment (HEI) funds can be used directly for a down payment. Major HEI providers structure their capital as flexible-use lump sums without restriction on property purchases. However, provider-specific underwriting conditions and contract terms determine how much net cash you actually walk away with.

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HEI Provider Down Payment Policies & Trade-Offs

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The real limit is usually not what you buy. It is how much equity your current home can release, which our Arizona home equity calculator will size for you, and whether the provider will touch your property type at all. Our guide to HEI approval for property in an LLC or trust covers the ownership side of that question.

How Long Does It Take to Get HEI Funds?

Plan on roughly three to six weeks from application to money in your bank account, and wherever possible finish that process before you rely on the proceeds for a purchase. Overlapping the two transactions can create real timing, sourcing, and underwriting risk.

Need funding on a tight schedule? See which HEI providers deliver the fastest closings.

A realistic sequence looks like this:

• Application and soft credit check. A few days. Most providers use a soft pull at the eligibility stage, which does not affect your score.
• Valuation. One to three weeks, depending on whether the provider uses an automated estimate, a desktop review, or a full appraisal.
• Underwriting and title work. One to three weeks. Existing liens, HOA status, and how the property is titled all surface here.
• Closing and funding. Several days after signing, with a cancellation period in some states.
• Money in your account. Roughly three to six weeks end to end, and longer if title turns up anything unusual.

Running the two at once is not impossible, and buyers do it. It is simply harder, because you end up with two underwriting processes that can each affect the other and a purchase contract whose financing depends on a transaction the seller knows nothing about. If you do overlap them, coordinate the timing with both your loan officer and your HEI provider up front.

Do HEI Funds Need to Season Before Being Used as a Down Payment?

No, Home Equity Investment (HEI) funds do not need to season before being used as a down payment. Fannie Mae conventional purchase guidelines do not require down payment funds to sit in an account for a set period, provided the source is fully documented.

See if an HEI is right for your situation and check your estimate today.

Fannie Mae Underwriting Requirements for HEI Funds

• No Waiting Period: The widely cited 60-day rule is a bank statement review window, not a seasoning requirement (Fannie Mae Selling Guide B3-4.2-01). Waiting 60 days does not bypass documentation rules.
• Large Deposit Sourcing: Any single deposit exceeding 50% of your total monthly qualifying income triggers automated sourcing requirements (Fannie Mae Selling Guide B3-4.2-02). Because an HEI lump sum exceeds this threshold, underwriters must verify the origin of the transfer.
• Secured Asset Documentation: Borrowed or lump-sum funds secured by real estate are acceptable for down payments (Fannie Mae Selling Guide B3-4.3-15). You must provide the HEI agreement terms, proof of asset transfer, and confirmation that the provider is not a party to the home sale.

Key Takeaway: Unlike uncollateralized personal loans (which are prohibited for conventional down payments) HEIs are secured by real property. Get written approval from your mortgage loan officer confirming they accept HEI proceeds before signing a purchase contract.

Does an HEI Affect Your Debt-to-Income Ratio?

Yes, an HEI can affect your Debt-to-Income (DTI) ratio, but there is no universal industry standard for how mortgage underwriters treat it. Because automated underwriting systems lack a specific product category for shared appreciation contracts, lender treatment varies widely depending on loan type, investor overlays, and manual underwriting reviews.

Curious if you qualify for an HEI? Get an estimate with no credit impact.

The Regulatory Conflict: Fannie Mae Guidelines

The classification ambiguity stems from two conflicting sections of the Fannie Mae Selling Guide:

1. Rule That Points Toward Counting It (Selling Guide B3-4.3-15)

• Guideline: When a secured loan does not require monthly payments, the lender must calculate an equivalent amount and consider that amount as a recurring debt.
• Collateral: Real estate is explicitly listed as acceptable collateral under this policy.

2. Rule That Points Away From Counting It (Selling Guide B3-6-05)

• Guideline: Loans secured by a borrower’s financial assets are excluded from DTI math (provided collateral is documented). Furthermore, HELOCs requiring no monthly payment do not require lenders to calculate an equivalent recurring debt.
• Collateral: The financial assets list names stocks, bonds, and 401(k) accounts, but does not explicitly name real estate.

Why Underwriters Struggle to Calculate an HEI Payment

• No Stated Rate or Schedule: Unlike traditional mortgages, an HEI has no interest rate or monthly principal payment to work backward from.
• 5% Rule Doesn’t Apply: The standard 5% minimum payment calculation applies exclusively to revolving accounts (e.g., credit cards), which an HEI is not.
• No Direct Benchmark: Any online tool promising an exact monthly DTI conversion for an HEI uses an invented formula.

6 Questions to Ask Your Mortgage Lender (in Writing)

1. Acceptance: Will you accept HEI proceeds as a documented source of down payment capital?
2. DTI Calculation: How will your underwriting team calculate or impute the HEI on my primary home for qualifying DTI?
3. Liability Listing: Must the HEI be explicitly listed as a liability on my 1003 loan application, and under what category?
4. Occupancy Impact: Does converting my current primary home into a rental or second home impact my mortgage approval or HEI covenants?
5. Reserve Requirements: Do your guidelines require additional cash reserves because I am financing a second property?
6. Rental Offsets: Will you count projected rental income from my current home to offset housing liabilities?

Critical Risk Warning: Always disclose your HEI during the application process. Fannie Mae requires full disclosure of all non-credit-report liabilities. Leaving a recorded title lien off a signed loan application constitutes mortgage fraud, regardless of whether it saves your DTI ratio.

Can You Put an HEI on the New House?

Generally not on a home financed with a Fannie Mae eligible conventional mortgage. Fannie Mae does not permit a shared appreciation agreement on the financed property unless it qualifies as a Community Seconds transaction. This is the hard stop in the strategy, and almost no competing article mentions it.

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The rule states that unless it qualifies as a Community Seconds loan, an agreement under which a borrower is obligated to pay a third party, other than a co-owner, a share in any appreciation in the value of the subject property is not permitted. “Subject property” means the home being financed. Source: Fannie Mae Selling Guide B2-1.2-04, Subordinate Financing.

The scope is what makes the strategy work at all:

• It applies to the home being financed. Your existing HEI sits on the current home. The new purchase is the subject property. The restriction does not reach back across to the home you already own.
• It does block adding an HEI to the new house for as long as that conventional loan is on it. Do not assume you can buy with a mortgage and layer an equity share on top later.
• It also constrains the current home. If you later want to refinance the home carrying the HEI into a conventional loan, the agreement generally cannot simply move behind the new mortgage in line, and settling it is often the path. Our guide to refinancing a mortgage with an HEI in place covers that.

This is a Fannie Mae conventional financing rule, not a universal statement about every mortgage. FHA, VA, portfolio, and non-QM programs can treat this differently, so ask the lender financing the new house. The Community Seconds exception is real but rarely relevant here, since it covers affordability assistance programs rather than commercial HEI products.

The constraint on the current home belongs in your ten-year plan rather than a footnote. Taking an HEI on your low-rate home to buy a second property may mean accepting that a conventional refinance of that first home is off the table until you settle.

One thing this is not. Because the two agreements sit on different properties, there is no priority contest between them. There is nothing to subordinate, which is the term for moving one lien behind another in line. If a lender or an article raises subordination here, they are describing the refinance situation rather than the purchase.

Will Buying Another Home Break Your HEI Agreement?

Buying another home can breach your HEI agreement, though not because of how you spent the money. The risk sits in the occupancy terms attached to the home the agreement is recorded against, and it hides behind a reassuring headline. Flexible use of funds is one thing. What the contract requires of your current house is another.

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Several providers set conditions on who lives in the encumbered home:

• Unison generally requires the property on the contract to remain your primary residence, and its program guide has included specific limits on days away. Confirm the current occupancy requirements and any absence limits in writing, because the product has changed.
• Unlock states that converting the property to a second home or a rental during the term may cause it to lower your total financing limit, and notes that some areas do not permit rental investments.
• Point describes funding second homes and investment properties under different underwriting than a primary residence.

The case to think hardest about is the classic move-up, where the new house becomes your primary residence and the old one becomes a rental or second home. That is a change of occupancy on the property your HEI is recorded against, governed by your specific contract. Read the occupancy and conversion sections before you write an offer, not after you move.

If the new property is the investment and your current home stays your primary residence, you are on much safer ground. Our HEI on an investment property guide covers the reverse case, where the rental itself carries the agreement, and our HEI on a second home guide covers placing one on a property you already own.

Scout’s Math Corner: How Expensive Is an HEI Down Payment?

An HEI down payment can become significantly more expensive than traditional financing because your settlement cost scales with your home’s future value, not a fixed interest rate. Rather than charging monthly interest, providers take a contractually agreed share of your property’s future equity upon sale or refinancing.

The Cost Formula Explained

The settlement obligation is governed by three primary variables: Amount Owed at Settlement = Future Home Value × (Initial Equity Share % × Exchange Rate Multiplier)

• The Exchange Rate Multiplier: Providers frequently apply a multiplier (e.g., 2×) to compensate for taking no monthly payments. Taking 15% of your equity today at a 2× exchange rate means surrendering 30% of your home’s total value at settlement.
• Asset Correlation Risk: Because your payoff obligation moves in tandem with the Phoenix real estate market, strong appreciation on your current home directly increases your total funding cost.

10-Year Settlement Projections (Scottsdale Move-Up Scenario)

Baseline Assumptions: $700,000 current home value | $300,000 initial mortgage balance | $105,000 cash advance (15%equity draw) | 2× exchange rate (30% provider share at exit).

10-Year Annual Appreciation	Year 10 Home Value	Total Amount Owed at Exit	Net Cost of $105,000 Advance	Illustrative Annualized Cost	Key Underwriting Takeaway
0%	$700,000	$210,000	$105,000	7.2%	Flat market costs double the original advance under a 2× multiplier.
3%	$940,741	$282,222	$177,222	10.4%	Aligns closely with historical national appreciation averages.
4%	$1,036,171	$310,851	$205,851	11.5%	Realistic baseline projection for Valley home appreciation.
6%	$1,253,593	$376,078	$271,078	13.6%	Strong market performance dramatically expands the settlement bill.
8%	$1,511,247	$453,374	$348,374	15.8%	A rapid growth decade makes the down payment cost more than the cash raised.

Underwriting Decision Test: An HEI down payment makes financial sense only if the projected equity appreciation on Home B (plus mortgage interest saved by placing a larger down payment) exceeds the total appreciation surrendered on Home A.

Pre-Offer Verification Checklist

1. Request Written Scenarios: Obtain settlement estimates directly from the provider across 0%, 3%, 5%, and 8%annual appreciation models.
2. Identify Risk Adjustments: Verify whether the provider applies a starting value discount (e.g., appraising your home at 92% of market value upfront), which further increases effective settlement costs.
3. Check Return Caps: Ask if the contract contains a maximum annualized return ceiling (often capped around 18% to 20%) to protect against runaway market spikes.

Request a written settlement calculation from each provider using your own home value, funding amount, expected holding period, and exit scenarios at several appreciation rates. For the settlement side of the picture, see our HEI settlement costs guide and HEI term-end strategy.

Is an HEI or HELOC Better for Down Payments?

An HEI beats a HELOC for a down payment mainly when the monthly payment is what blocks your mortgage approval, because the HEI usually costs more in a rising market. The comparison that matters is not just the price of the money. It is which option still lets you qualify for the loan on the new house while keeping the rate on the old one.

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The pattern is that an HEI takes a monthly payment out of the equation and puts uncertainty in its place, while a HELOC or home equity loan gives you a DTI hit you can calculate in advance. If your ratios are tight, a known payment you can plan around may be worth more than a payment-free product your lender might assign a number to anyway.

If your existing rate is already at or above today’s pricing, the whole calculation changes and the cash-out refinance stops being the villain of this story. Our HEI vs cash-out refinance comparison works through that case, and the Arizona HELOC guide covers the line of credit path in detail.

What Mistakes Do Buyers Make with an HEI Purchase?

The most common mistake is sequencing: relying on HEI proceeds while already under contract on the new house, which leaves two underwriting processes running against a closing date you do not control. Four others account for most of the remaining trouble.

• Assuming the funds need to season. Buyers push their purchase out by two months for a rule that does not exist, and still have to document the deposit anyway.
• Not getting the DTI answer in writing. The loan officer who reassured you on the phone is not the underwriter who decides. An email costs nothing and settles it.
• Planning to add an HEI to the new property. A shared appreciation agreement generally is not compatible with a Fannie Mae eligible conventional first mortgage, and buyers who counted on a second draw find out late.
• Overlooking the occupancy terms on the old house. Especially in a move-up, where the current home quietly becomes a rental and the agreement recorded against it may not allow that.

A fifth is less a mistake than a misunderstanding. Many HEIs require settlement by the end of their contractual term, and that clock does not pause because you now own two properties. Confirm your term and any extension or default provisions. If the plan is to sell the first home to cover settlement, you have made your housing plan and your settlement plan the same decision.

Using an HEI to Buy Another House: Common Questions

Curious if you qualify for an HEI? Get an estimate with no credit impact.

EquitySquirrel is an educational resource operated by Scout Media LLC, not a lender or home equity agreement provider. This content does not constitute financial, legal, or investment advice. Mortgage underwriting guidelines and provider terms vary and are subject to change; confirm current requirements with your lender and provider directly. Calculations shown are illustrative and do not represent an offer from any provider. Consult a licensed mortgage professional and, where a recorded agreement is involved, an attorney before making decisions about your home equity. Aleksandra Kadzielawski, Lic #SA694336000.