How to Fold a Jumbo First and a HELOC Into One Jumbo Loan

The Quick Read: Nothing literally merges. A new first-lien loan pays off the old first mortgage and the HELOC at closing, both old liens are released, and the borrower is left with one lien and one payment. The new balance is the combined payoffs plus closing costs plus any cash taken out, so the plan lives or dies on appraised value, credit, reserves and how the file is vested.

• A HELOC paid off inside the new loan generally makes the deal a cash-out transaction, even if no cash comes back to the borrower.
• Folding in the HELOC adds to the balance, so the new loan can cross a county conforming limit and become jumbo.
• A combine reprices the whole balance, not just the HELOC slice. A cheap old first can be a reason to leave it alone.
• On a rental, the file clears two tests: enough equity under the cash-out leverage cap, and enough rent to cover the larger payment.

Investors usually search for this after a HELOC draw period ends, or when a variable payment starts to hurt. The mechanics are simple on paper. The friction is in the payoffs, the lien release and the leverage math. This piece walks through each step as it plays out on a file.

What “Folding Two Loans Into One” Actually Means

Folding means replacing, not merging. The new lender takes first position, the title company wires off both payoffs, and the old liens are released. Nolo explains lien priority this way: when a first mortgage is paid off by a new loan, the old first lender releases its lien, and the HELOC, as the oldest remaining recorded lien, would normally move up to first position.

A new lender will not accept that. It wants first position, so it needs one of two things. Either the HELOC is paid off and closed inside the new loan, or the HELOC lender signs a subordination agreement and the line stays open behind the new first. Folding the HELOC in means the first path. No subordination is needed because no second lien survives.

A short note for readers who landed here by mistake. A piggyback is the opposite structure: a smaller first plus a HELOC, built to stay under the jumbo threshold. This article covers going from two loans to one.

Key Terms Defined

Cash-out refinance: A new loan that pays off existing debt and may return cash, and that is generally labeled cash-out when a non-purchase HELOC is paid off.

Subordination agreement: A signed agreement in which a lender agrees to let its lien sit behind a newer first lien.

CLTV: Combined loan-to-value, meaning all liens on the property divided by its appraised value.

Payoff statement: A written figure from a lender showing what it takes to close the loan on a given date, including interest accrued to that date.

Lien release: The recorded document that removes an old lender’s claim on the property.

When a Loan Becomes Jumbo

Jumbo means larger than the county conforming limit. For the most recent limit cycle, the baseline one-unit limit is $832,750, up from $806,500, with a high-cost ceiling of $1,249,125 for one-unit properties, per Orrick’s summary of the FHFA announcement. Limits differ by county and by unit count, and FHFA does not reduce them when prices fall. The FHFA county limit list shows the number for a specific county.

Here is the catch. A first mortgage that sat under the county limit can cross it once the HELOC payoff is added. An ordinary house can turn jumbo through a cash-out. Check the county number before assuming which lane the new loan falls into.

How Underwriting Treats the Combine, Step by Step

Here is the sequence as it runs inside a file.

1. Payoff statements. Pull a first-mortgage payoff and a HELOC payoff. Revolving lines can still be drawn before closing, so the HELOC payoff can move. The new loan amount is the combined payoffs, plus closing costs, plus any cash the borrower wants.

2. Valuation. A new appraisal sets value. On a rental, the appraiser also reports market rent. Lines under $500,000 are often valued by an automated model, but a jumbo combine needs a full appraisal.

3. Leverage test. Combined payoff divided by appraised value must fit the cash-out cap for the loan lane. On a DSCR investor cash-out, most of the wholesale network tops out around 75% LTV, with about 6 months of seasoning as the common expectation. Short-term rental collateral is lower: cash-out tops out at 70% on a short-term rental, a different lane from the 75% standard-rental ceiling. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.

4. Review basis. A conventional jumbo reviews personal income and debt ratios. A DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines. Rent is divided by PITIA: principal, interest, taxes, insurance and any HOA dues. Folding in the HELOC raises the balance, so coverage falls. Rent has to cover the new, larger payment. Many select programs start at 1.00 coverage; a separate select-lender path goes below 1.00 with leverage and terms adjusted. Stronger ratios open better pricing and leverage.

5. Credit and reserves. A 620 floor exists in parts of the network, most programs want around 660, and 700 or better unlocks the strongest leverage tiers. Reserves vary by lender, leverage, loan size and transaction type. Around 6 months of PITIA is common, and loans above $1,500,000 typically step up to about 9 months. Loan sizes run up to $3,000,000 on standard programs (smaller balances available through select lenders), and above $2,500,000 the network generally holds to 30-year fixed structures.

6. Lien clearing at closing. The title company pays off both liens. A zero balance on the HELOC is not enough. The line must be formally closed, or the new lender will ask for a subordination. A frozen line with an open lien is the most common cleanup item on these files.

7. Recording. The new mortgage is recorded and the old liens are released.

Clearing 1.00 is not the same as positive cash flow. Coverage compares rent to PITIA only. Repairs, vacancy, management, utilities and capex sit outside the calculation, so a larger combined balance can pass the coverage test and still leave thin real cash flow.

“Cash-Out” Even With No Cash Back

Many borrowers assume that taking nothing out makes this a rate-and-term refinance. It usually does not. For a contrast, the agency side draws the line clearly: Fannie Mae’s cash-out refinance rules list paying off subordinate liens of any age as an acceptable cash-out use, while its limited cash-out category only allows paying off seconds that were used to buy the property. DSCR and non-QM jumbo programs are not agency products and set their own labels. Across the wholesale network, a no-cash payoff of a HELOC on a rental is generally still treated as cash-out. Lenders classify these individually, so the scenario has to be tested before the borrower plans around a rate-and-term label.

The practical effect: the cash-out leverage cap, not the higher purchase cap, governs the file.

The Four Structures Side by Side

A combine is one choice among several. This table shows how they compare.

What You Give Up

A combine reprices the entire balance, not just the HELOC piece. Say an investor holds a first that is about half of the property’s value and a line that is about 15% of it. Moving all of that into a new loan means the old, cheaper first disappears along with its terms. Keeping the first and borrowing only the slice needed can cost less, even if it means a smaller second loan.

The break-even test has four inputs: the old blended cost, the new loan’s cost, closing costs and any early-closure fee on the old loans, and how long the investor expects to hold. A new first mortgage also resets amortization. Costs and the reset both land on a new first, so the longer the hold, the better a combine looks.

Payment structure matters too. A HELOC is typically interest-only during the draw and then amortizes, while the new first is fully amortizing from day one. The monthly number often rises even if the cost of money falls. The coverage ratio feels that rise.

The reasons people do combine are real. A variable payment and the end of the draw period push many investors to consolidate into one fixed-structure loan. HELOCs can also be frozen or reduced when credit or debt ratios worsen, which is a risk to a borrower who relies on the line for later deals. Tax treatment can depend on how the funds are used and how the property is held; investors should keep clear records and speak with a qualified tax professional before relying on any deduction.

Where the General Rule Breaks

Purchase-money HELOC. If the HELOC funded the purchase, agency logic treats it differently than a HELOC drawn for other uses. Non-QM treatment is lender-specific, and no standard published treatment exists for DSCR payoffs of a HELOC. Test the scenario with the lender before pricing the plan.

LLC-held rentals. Agency limited cash-out requires moving title out of an LLC into the individual borrower. DSCR programs allow entity vesting on many files, subject to program terms. The investment HELOC side is stricter: lines generally require personal or revocable-trust title, so an entity-held rental usually points to a DSCR cash-out refinance rather than a home equity line.

HELOC on a different property. If the HELOC is secured by another property, refinancing the first needs no subordination at all. Nolo notes that subordination only matters when the lines share collateral.

Subordination is voluntary. If an investor keeps the line open, the HELOC lender is not obligated to sign, and a larger first balance makes signing less likely. Lenders usually agree only when the equity covers both loans.

Seasoning. The agency cash-out rule asks that the existing first be at least 12 months old by note date, and it does not apply to subordinate liens paid off in the deal. DSCR seasoning is lender policy. About 6 months is the common expectation across the network, so a recent purchase can stall a combine on documentation alone, since the settlement statement proves the ownership date.

Ineligible collateral. Manufactured homes (single- and double-wide), log homes and barndominiums are not offered in the network’s DSCR programs.

Thin equity. If the combined payoff does not fit under the leverage cap, the choices are a paydown to close the gap, a smaller transaction that leaves one loan in place, or waiting for value or balance to improve.

The Investor Decision in Practice

Picture an investor with a rental valued well above the county conforming limit, a first mortgage on it and a HELOC drawn to buy another property. The combine works when four things line up: the combined payoff fits under a cash-out cap near 75% LTV on a standard rental, rent covers the new full payment at the program’s coverage floor or better, credit sits at or above the tier the leverage requires, and reserves are documented. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.

Now change one input. Same property, but short-term rental collateral. The cash-out ceiling drops to 70%, hosting history of about 12 months is expected, and a 640-plus score is typical. The same balance that fit before may not fit now.

On documentation, gather these before applying:

• Both payoff statements and the HELOC closure plan
• Lease or rent-roll evidence, and entity documents if the property is LLC-held
• Reserves statements
• Insurance quote and HOA information where relevant
• Settlement statement if the property was bought recently

This is the file-prep list that prevents preventable gaps. It does not guarantee approval. For the broader program picture, see Lendmire’s complete DSCR loans guide.

If you are weighing a combine on a rental and want to see how the numbers work, Lendmire, a mortgage broker arranging DSCR financing through select lenders across 41 markets including Washington, D.C., can compare structures based on the property, equity, credit profile, leverage and your goals. Program details are subject to lender guidelines, and nothing here is a commitment to lend.

About Lendmire

As a mortgage broker (NMLS# 2371349), Lendmire helps homeowners and real estate investors in its 16 full-service states open home equity lines of credit arranged through wholesale lenders. Lendmire is never the lender; line amounts, ceilings and terms are set by the lender under its guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

Investors who want the broader program framework can review how DSCR loans work.

References

1. Nolo: What a Subordination Agreement Means

2. Orrick Infobytes: FHFA Announces Conforming Loan Limit Increases

3. CalculatedRisk: FHFA Announces Baseline Conforming Loan Limits

4. FHFA: Fullcountyloanlimitlist2026 Hera Based Final Flat.xlsx

5. Fannie Mae Selling Guide: Cash-Out Refinance Transactions