Wraparound Mortgages: Seller Financing on Top of an Existing Loan

A seller with a 3% mortgage wants to sell for a price above the loan balance but cannot extract the equity in cash because the buyer cannot qualify for a new bank loan. A buyer wants to own the property and has a down payment but no W-2 income that would satisfy a conventional underwriter. Both of them are stuck — unless they use a wraparound mortgage.

A wraparound mortgage (also called a , an all-inclusive trust deed, or AITD) is a form of seller financing where the seller creates a new note for the buyer that wraps around the seller’s existing underlying loan. The underlying loan stays in place — the seller keeps making payments to the original lender — while the buyer makes a single, larger payment to the seller. The seller earns the spread between the two rates. The underlying mortgage never gets paid off; it sits inside the wrap, invisible to the buyer.

This is the structure that turns a acquisition into a cash-flowing note for the seller, and it is the mechanism behind the spread-based returns documented in the sub-to into wrap case study. Before diving into the mechanics, make sure you understand plain seller financing (where the seller carries a note on a free-and-clear property) and pure subject-to (where a buyer takes over an existing loan without seller financing on top). The wrap combines pieces of both — and adds the spread layer that makes it work economically for the seller.

What is a wraparound mortgage?

A wraparound mortgage is a new note — originated by the seller — that consolidates the seller’s existing underlying mortgage and the seller’s equity above it into a single payment from the buyer. The seller does not pay off the underlying loan at closing. Instead, the seller continues servicing the underlying loan and collects a larger monthly payment from the buyer that covers both the underlying debt and the seller’s spread.

The name comes from the structure: the new note wraps around the old one. The underlying mortgage sits inside the wrap like one box inside another. From the buyer’s perspective, there is only one payment — to the seller. The buyer typically does not interact with the underlying lender at all.

Think of it as a seller side hustle as a mortgage company. The seller already has a loan at 3% — the cheapest long-term debt available. Instead of paying it off and losing that cheap leverage, the seller re-lends the house to the buyer at a higher rate, keeping the spread as monthly cash flow. The seller is not giving the buyer a discount on the underlying loan; the seller is selling access to it — at a markup.

How the payment flow works

The mechanics are simpler than the legal term sounds.

On the underlying side: The seller has an existing mortgage — say a 30-year fixed at 3.5% with a balance of $210,000 and a monthly payment (principal and interest) of approximately $943. This loan stays exactly as it was before the wrap: same lender, same servicer, same rate, same amortization. The seller’s name remains on the loan. The seller sets up autopay or uses a third-party servicer to ensure the payment never misses the due date.

On the wrap side: The seller creates a new promissory note to the buyer — the wrap note — for an amount that includes both the underlying loan balance and the seller’s equity. Say the house is worth $300,000, the seller owes $210,000, and the seller wants to wrap the entire purchase price. The wrap note might be $295,000 at 7%, amortized over 30 years, with a monthly principal-and-interest payment of roughly $1,962.

The flow:

1. The buyer pays the seller ~$1,962/month on the wrap note.
2. The seller pays the underlying lender ~$943/month.
3. The seller keeps the difference: ~$1,019/month.

That difference — the spread — is the seller’s return on the $90,000 of equity they financed above the underlying loan, plus a rate markup on the $210,000 of debt the seller did not originate but controls. The math on that spread is the whole game.

The spread: why wraps exist

The economic reason to use a wrap instead of a plain seller-finance note or a cash sale is the spread. When a seller carries a note on a free-and-clear property, they earn whatever rate they charge on their own equity — typically 5% to 8%. With a wrap, the seller earns that rate on their equity plus a markup on the underlying bank’s money. The underlying bank lent the seller money at 3.5%. The seller re-lends that same money to the buyer at 7%. The 3.5-point spread on $210,000 of debt the seller did not fund is pure additional return.

The seller did not create the underlying $210,000. The bank did, years ago. The seller is earning a return on debt they did not originate — and on equity they already owned but that was sitting dormant. If the seller had sold for cash, they would have walked away with roughly $90,000 minus closing costs, which at a 5% return in a CD or bond fund produces about $375/month. With the wrap, the seller earns ~$1,019/month — nearly triple — plus principal paydown on both the wrap note and the underlying loan. The note itself is an appreciating asset: the wrap buyer is paying down the wrap principal, and the underlying bank loan is paying down itself.

When a wrap fits

A wrap is not the answer to every deal. It fits a specific profile.

The seller must have a low-rate, fixed, fully amortizing underlying loan. The entire spread depends on the gap between the underlying rate and the wrap rate. If the underlying loan is at 6.5% and the wrap rate is 7%, the spread is negligible and not worth the complexity. The best wraps happen on loans originated between 2018 and 2021 — 30-year fixed conventional mortgages in the 2% to 4% range. Those loans are unicorns today, and they are the fuel for the wrap engine.

The seller must want more than the loan payoff. If the seller owes $210,000 and the house is worth $215,000, there is only $5,000 of equity to wrap — the spread might not justify the legal work. If the seller owes $210,000 and the house is worth $300,000, the $90,000 equity spread makes the wrap worth building.

The buyer must be unable or unwilling to use conventional financing. A buyer who qualifies for a 6.5% conventional loan with 20% down has no reason to accept a 7% wrap. The wrap buyer is someone the conventional system excludes: self-employed with bank-statement income, ITIN holders, buyers with a recent short sale or foreclosure who are temporarily locked out of the conventional market, or investors who have maxed out their conventional loan count.

The property must be a single-family or small multifamily with a long-term fixed loan. Commercial and multifamily loans with imminent balloons are bad wrap candidates — the balloon forces a refinance that destroys the spread. Short-term adjustable-rate debt similarly exposes the wrap to rate resets that could invert the spread.

Relationship to subject-to

Wraps and are closely related, but they are not the same thing.

Subject-to describes how the buyer acquires the property — the buyer takes title while the existing mortgage stays in the seller’s name. The buyer makes the payments; the deed transfers; the loan does not.

A wrap describes how the buyer finances the purchase — the seller creates a new note that wraps around the existing loan. The wrap note is the instrument; subject-to is the acquisition method.

In practice, most wraps happen this way: the buyer takes the property subject-to the underlying loan, and the seller simultaneously executes a wraparound note for the full purchase price. The buyer gets the deed (ownership). The seller gets a wrap note (future income). The underlying bank gets its monthly payment (business as usual, if no one looks too closely). The structure is: sub-to acquisition + wrap note = one transaction that looks clean to everyone except the underlying lender, who is kept out of the loop.

The distinction matters because the hybrid subject-to plus seller-finance structure is technically a different instrument: a first-position subject-to loan plus a separate second-position seller-carry note. A proper wrap merges both into a single all-inclusive instrument rather than two separate notes with different priority. The economic result is similar; the legal construction is different. Either way, the underlying loan never gets paid off at closing.

The due-on-sale risk

This is the structural risk that sits at the center of every wrap transaction.

Every conventional mortgage contains a : a contractual provision giving the lender the right to demand full repayment if ownership of the property transfers without the lender’s consent. When a seller wraps a mortgage, legal ownership transfers to the buyer — either directly via a recorded deed or indirectly through an entity structure. That transfer, if discovered by the underlying lender, can trigger an acceleration notice demanding the full loan balance, typically within 30 days.

Servicing: use a third party

The single biggest operational mistake in wrap transactions is the seller handling payments directly — collecting from the buyer and then manually paying the underlying lender each month. This creates three problems.

First, it introduces the risk of the seller forgetting, getting busy, or having a bank issue that causes a missed underlying payment. One missed payment can trigger a late notice from the underlying lender, escalate to a notice of default, and eventually draw scrutiny that leads to the due-on-sale acceleration you were trying to avoid.

Second, it creates a messy paper trail. If the buyer ever disputes a payment, the seller needs clean records. A handwritten ledger is not a defensible payment history in court.

Third, at scale it is unsustainable. An operator doing five or ten wraps cannot manually track dozens of payments across multiple servicers and buyers without eventually dropping one.

A licensed third-party loan servicer collects the buyer’s payment, automatically remits the underlying mortgage payment to the bank, sends the spread to the seller, tracks the amortization on both notes, issues annual tax statements, and maintains a compliant, auditable payment history. Companies that specialize in this — including Dovenmuehle, Allied Mortgage, and several servicers focused specifically on seller-financed and wrap notes — charge a small monthly fee (typically $15–$35 per note) that is negligible next to the risk of a missed underlying payment. Use a servicer from day one, not after the first problem.

Frequently Asked Questions

Is a wraparound mortgage legal?

Yes — wraparound mortgages and all-inclusive trust deeds are recognized real estate instruments in most U.S. states. They are distinct from the underlying mortgage and are recorded as a separate lien against the property. However, the specific documentation, disclosure, and licensing requirements vary significantly by jurisdiction. Some states have explicit statutory provisions governing wrap mortgages; others treat them under general contract and secured-transaction law. Several states impose mortgage-lending licensing requirements on anyone who originates seller-financed loans above a certain number per year or to owner-occupant buyers. Consult a real estate attorney licensed in the property’s state before closing your first wrap — this is not a transaction type where you can safely rely on a generic template.

How is a wrap different from a hybrid subject-to plus seller-finance deal?

In a hybrid sub-to + seller-finance deal, you have two separate notes with two different priority positions: the underlying bank loan (first position) and a separate seller-carry note (second position). In a wrap, both are consolidated into a single all-inclusive instrument — the buyer signs one note with one rate, one payment, and one amortization schedule. The economic result is similar, but the legal construction differs, and which one you use depends on your state’s treatment of each instrument and the preferences of the title company and attorney handling the closing. The case study on sub-to into a wrap documents a real-world example of both layered together.

What happens if the buyer stops paying the wrap?

The seller has the same remedies available under any defaulted promissory note: they can initiate foreclosure on the wrap note to recover the property. However, this is complicated by the existence of the underlying loan — the seller must continue making the underlying payments throughout the foreclosure process to prevent the underlying lender from foreclosing first. Foreclosure timelines vary by state (ranging from roughly 60 days to over a year in judicial-foreclosure states), and the seller must budget for carrying the underlying payment during that window. Some wrap practitioners use an LLC equity-sale structure instead of a traditional recorded wrap note to enable faster recovery mechanisms (see the case study for details on that structure).

Can I use a wrap for an investment property, or only for an owner-occupied home?

You can use a wrap on both, but the regulatory layer changes. When the buyer intends to occupy the property as a primary residence, federal regulations under the Dodd-Frank Act and the CFPB may impose additional requirements on the seller — including ability-to-repay assessments, limits on balloon payments, and restrictions on loan originator compensation — even though no bank is involved. Investment-property wraps (non-owner-occupied) generally fall outside the CFPB’s owner-occupied consumer-protection framework, though state-level regulations may still apply. Again, this varies by jurisdiction, and the buyer’s stated occupancy intent matters. Work with an attorney who understands the intersection of seller financing and consumer finance regulation in the relevant state.

How does the seller’s tax situation work on a wrap?

The seller reports the gain from the sale under installment-sale rules (IRS Form 6252). Instead of recognizing the entire capital gain in the year of sale, the seller recognizes gain proportionally as they receive payments from the buyer — spreading the tax liability across the life of the note rather than taking it all at once. The interest portion of each payment is taxed as ordinary income. The seller continues deducting the mortgage interest on the underlying loan as investment interest where applicable. This is a significant tax advantage over a cash sale, and for many sellers it is the primary reason to consider a wrap instead of demanding cash at closing. The seller should engage a CPA familiar with installment-sale reporting before closing.

What is the relationship between wraps and the no-money-down approach?

Wraps are one of the core structures in the no-money-down toolkit. The buyer in a wrap transaction typically brings a down payment — often 10% to 20% — but that down payment goes to the seller, not to a bank. The underlying mortgage financing comes from the existing loan (which required $0 new origination), and the wrap note itself is seller-financed (no bank involved). A buyer who cannot qualify for conventional financing and cannot bring 20% down to a bank can still close a wrap with whatever down payment the seller agrees to accept. The seller, meanwhile, gets out from under the day-to-day ownership while keeping their low-rate financing working for them.

For the full map of creative-finance structures — including plain seller financing, pure subject-to, hybrid sub-to + seller notes, and the sub-to into wrap case study — start with the creative-finance overview.

This guide is educational and is not financial, tax, legal, or investment advice. Programs, lender policies, and tax rules change. Consult a licensed attorney, CPA, and lender before acting.