The Quick Read: A DSCR cash-out refinance is a take-out loan on a finished rental, so it generally cannot fund an accessory dwelling unit (ADU) that is still unbuilt. The unit has to exist, be legal, and be rentable before its rent counts toward coverage. Most investors fund the build first, then refinance once the unit is leased. Lendmire is a mortgage broker, so it does not hold loans itself. It matches the file to a program in its wholesale network.
- Cash-out on a standard rental tops out at 75% LTV, with about 6 months of ownership seasoning, subject to lender guidelines.
- Rent from an ADU counts only after the unit is permitted, finished, and supported by a lease or appraiser market rent.
- Coverage of 1.00 is where select programs start, and credit floors begin at 620.
- Appraised value, not build cost, sets how much cash comes out.
- The right program depends on the property, the credit profile, and how much leverage the file needs.
What Does “Portfolio Bank” Actually Mean Here?
A portfolio bank keeps its loans on its own books instead of selling them. That is a statement about who holds the loan. DSCR describes how the loan is underwritten: qualification runs primarily on property-level rental income covering the payment, subject to lender guidelines.
The two labels overlap but are not the same thing. A bank can hold a loan and underwrite it on personal income. A non-QM lender can underwrite on rent and sell the loan into a securitization. Large retail lenders generally do not market DSCR programs at all. Smaller depositories sometimes write rental loans on a discretionary, relationship basis. Those decisions vary bank to bank, which is why a roster of “banks that offer” this would go stale and mislead.
Lendmire does not place bank portfolio loans. Its network is wholesale non-QM and DSCR lenders. The brokerage answers the real question instead: what these programs require, and how to line a file up with the right one. The best program for a given file depends on property type, credit, leverage, and documentation.
A second sense of “portfolio” matters here too. A portfolio DSCR loan, also called a blanket or cross-collateralized loan, puts several rentals under one note. Pooled rent is measured against pooled debt service. That structure comes up again below.
Key Terms Defined
DSCR (debt service coverage ratio): Monthly rent divided by the full monthly obligation of principal, interest, taxes, insurance, and any association dues.
Cash-out refinance: A new loan that pays off the old one and returns the difference in cash, limited by the program’s LTV ceiling.
ADU (accessory dwelling unit): A separate living unit on the same lot as a main house, either attached or detached.
Seasoning: The ownership period, measured from title recording, that must pass before cash-out is available.
Take-out loan: Permanent financing that pays off short-term construction or bridge debt once the project is done.
Pooled coverage: On a blanket loan, the combined rent of all properties measured against their combined debt service.
Why Can’t a DSCR Cash-Out Fund the Build?
Because the loan sizes against a property that already exists. The appraiser values the as-is property and estimates market rent for what is there. An unbuilt ADU has no appraised rent and no certificate of occupancy. An unpermitted unit is usually left out of both value and rent.
1. The lender confirms the property is a non-owner-occupied rental.
2. The appraiser values the property as it stands and reports market rent.
3. Coverage is calculated as rent divided by the full payment on the new, larger loan.
4. The cash-out amount is capped by the LTV ceiling, seasoning, and reserves.
5. The new loan pays off any build financing, and what is left is net cash to the investor.
Appraisal is where ADU files get hurt. A finished unit can appraise below what it cost to build, so expect little or no instant equity from the construction itself. An improvement may support a higher appraised value, depending on comps and underwriter review. Detached units in thin-sales areas are the hardest to support. Ask for an appraiser who has worked ADU comps.
Cost context helps set expectations. The Terner Center survey of California ADU owners found a median construction cost of $150,000, about $250 per square foot, with 71% of units costing less than $200,000. That is California only. Do not treat it as a national benchmark. It does show why a build can swallow most of the equity you hoped to pull out.
The Six-Step Path Most Investors Use
The common sequence is build first, refinance second. The build is funded outside the DSCR product, then a DSCR cash-out takes out that debt once the unit is leased.
1. Fund the build with whatever fits: an equity line, a construction loan, a bridge loan, or cash. 2. Pull permits and get final sign-off, plus a certificate of occupancy where required. 3. Lease the unit, or secure an appraiser-supported market rent. 4. Confirm seasoning. Across the network, about 6 months of ownership is the common expectation for cash-out. 5. Apply for the DSCR cash-out, sized at up to 75% LTV on a standard rental, or 70% on short-term-rental collateral. 6. The refinance pays off the build debt. Any leftover cash is net proceeds. Each figure is subject to lender guidelines and a complete review of property type, leverage, and credit.
The Terner Center ADUs for All report notes that few financing products fit ADU construction. That gap is why sequenced financing is normal rather than a workaround.
Run the coverage math twice, with and without the ADU rent. The new payment is larger because the loan is larger. A legal ADU adds a second rent stream, which can lift coverage on a thin file. But if the main house only covers the old loan, the bigger payment can push the ratio down before the ADU rent arrives. Lenders are reviewing the whole picture, not just the new unit.
Keep one distinction straight. Clearing 1.00 is not the same as positive cash flow. DSCR compares rent to the full monthly obligation only. Repairs, vacancy, management, utilities, and capital expenses sit outside the calculation.
What Programs Look Like Across a Wholesale Network
These are ranges across the network, not quotes. Every file is underwritten individually, subject to lender guidelines.
| Item | Typical network range |
|---|---|
| Cash-out LTV, standard rental | Up to 75% |
| Cash-out LTV, short-term rental | Up to 70% |
| Seasoning before cash-out | About 6 months |
| Coverage | 1.00 is where select programs start |
| Credit | 620 floor; most want around 660; 700+ for strongest tiers |
| Reserves | About 6 months PITIA; about 9 months above $1,500,000 |
| Loan size | Up to $3,000,000 on standard programs |
Coverage below 1.00 is available through select lenders in the network, with leverage and terms adjusted. That is a separate path from the programs that start at 1.00. A larger down payment or lower leverage can lift coverage, but it does not erase credit floors, reserve rules, or property eligibility. The strongest files clear both tests: enough equity and enough rental coverage.
Reserves usually have to come from funds other than the cash-out proceeds. Plan for that before applying.
Short-term-rental ADUs are tighter. Expect a score of 640 or higher and about 12 months of hosting history. Short-term rental rules can vary by city, county, HOA, and property type, so investors should confirm local rules before relying on projected rental income.
Property type matters. Manufactured homes, log homes, and barndominiums are not offered through these programs. An ADU built as a conventional detached or attached unit on a single-family, 2-4 unit, condo, or townhome property is the typical fit.
How Does a Portfolio DSCR Loan Change the Picture?
If you own several rentals, one note can secure all of them. The network has two structures:
| Feature | 30-year portfolio DSCR loan | Rental portfolio term loan |
|---|---|---|
| Properties | 2 to 20 | Five or more |
| Loan size | $300,000 to $5,000,000 | $500,000 to $50,000,000 |
| Leverage | Up to 80% on purchase and rate-and-term | Up to 75% |
| Term | 30-year, interest-only period available | Fixed 3, 5, 7, 10-year, balloon at maturity |
| Recourse | Personal guarantee typical | Recourse or non-recourse options |
Cash-out on either structure never exceeds 75% of pooled value. Coverage on the 30-year structure is measured on the pool, so stronger properties can offset weaker ones. A rental with thin coverage can sit in the pool, but underwriting tests the pooled coverage, the leverage, and the terms. Small multifamily of five or more units fits only the rental portfolio term loan.
An ADU on one property in the pool is just one more rent stream, once it is legal and leased. It can lift pooled coverage. The catch is release and substitution: partial releases follow the loan documents, and the remaining pool must still cover its debt service. Read those terms before pooling a property you may want to sell.
For a cash-out inside the first six months of ownership, the amount is capped by the seasoning rule, and the loan is also capped at 90% of total cost (purchase price plus documented improvements). From six to twelve months the cap is 100% of total cost. The 75% ceiling still applies, so the loan is the lower of the two. After twelve months, appraised value alone is the basis. A rate-and-term refinance is not subject to the cost-basis cap.
Credit on the portfolio programs starts at 640, with some structures wanting 680 or 720. Some require a special-purpose entity, typically an LLC, subject to lender program eligibility. Owner-occupied, co-op, mixed-use, and commercial property are ineligible in the pool.
Funding Options Compared
| Option | Role | Limit for ADU builds |
|---|---|---|
| DSCR cash-out | Take-out after lease-up | Cannot fund unbuilt unit |
| Equity line | Build funding | Separate product, owner-occupied use |
| Construction or bridge loan | Build funding | Short-term, needs exit plan |
| Cash | Build funding | Ties up capital |
The build loan needs an exit. That exit is the DSCR refinance, so line up the seasoning clock, the lease, and the appraisal before the short-term debt matures.
Where the Rule Breaks
Owner-occupied main house. DSCR is a business-purpose product for non-owner-occupied property. Because these are business-purpose investor loans, they are reviewed differently from a standard owner-occupied mortgage. The CFPB’s Regulation Z commentary lists the factors for judging business purpose, and the agency’s TILA exam procedures treat credit to improve non-owner-occupied rental property as business-purpose credit. An owner who lives in the house usually builds with a personal-income product first, converts to a rental, then refinances. Lenders make their own business-purpose call, so this is not a legal conclusion.
Unpermitted ADU. Expect it to be excluded from value and rent. The main house may have to qualify alone.
Weak coverage. Sub-1.00 paths exist through select lenders with adjusted leverage and terms. No-ratio structures are available only through select lenders, generally for borrowers who already own a primary residence.
Thin comps. A low appraisal can cut both value and rent. A signed lease at market rent and an appraisal review request can help.
Entity vesting. Closing in an LLC is common, subject to lender program eligibility. On recourse structures, lenders typically still want a personal guarantee, while non-recourse structures look to the real estate with recourse limited to carve-outs such as fraud and bankruptcy.
What to Ask Before You Apply
- Is the ADU permitted, finished, and signed off?
- Do I have a lease or an appraiser-supported market rent?
- Has the 6-month seasoning clock run, measured from title recording?
- Does coverage clear after the larger payment, with and without ADU rent?
- Are reserves documented from funds other than the cash-out?
- Does the program allow my property type and vesting?
Bring the permit and final sign-off, the lease, entity documents, reserves statements, and a build-cost record. If the main house or another property is already under a blanket loan, bring those loan documents too.
When a bank route will not work, skip it. Large retail lenders mostly do not market DSCR programs, and a relationship-based bank may not lend on a rental with a fresh ADU. A broker that shops several wholesale lenders can match the file to the program that fits. Lendmire’s complete DSCR loans guide covers qualification in more detail. For owner-occupied alternatives, see Lendmire’s piece VA Cash-Out Refinance Requirements to Build an Accessory Dwelling Unit.
If you are buying or refinancing a rental property and want to see how the numbers work, Lendmire can help you compare DSCR loan options based on the property income, credit profile, leverage, and investor goals. Reach the team at 828-256-2183.
Frequently Asked Questions
Do big banks offer portfolio DSCR cash-out refinances?
Large retail lenders generally do not market DSCR programs. Some smaller depositories hold rental loans on their own books and decide case by case. Programs differ by institution, so no fixed roster applies.
Can projected ADU rent count toward coverage before it is built?
No. Rent counts once the unit is legal, finished, and supported by a lease or appraiser market rent. An unpermitted unit is usually left out of value and rent.
How much cash can I pull out after the ADU is done?
It depends on appraised value, rent used for lender review, the new payment, reserves, and the ceiling. Cash-out tops out at 75% LTV on a standard rental, subject to lender guidelines. The ADU may support a higher value, but it can appraise below build cost.
Does a blanket loan help if I own several rentals?
It can help, because coverage is measured on the pool, so stronger properties can offset weaker ones. Cash-out stays at or below 75% of pooled value, and release terms govern selling one property later.
Can I use this on my own primary home?
No. DSCR is for non-owner-occupied rentals. An owner-occupant typically builds with a different product, converts to a rental, then refinances.
For how equity extraction works on an investment property, see Lendmire’s guide to cash-out refinance on an investment property.
About Lendmire
Lendmire, NMLS# 2371349, is a non-QM mortgage broker serving real estate investors in 41 markets, including Washington, D.C., through DSCR investor loan programs. Qualification is generally reviewed around the subject property’s rental income, not the borrower’s W-2 history — a practical fit for LLC-titled portfolios and self-employed investors. All scenarios remain subject to lender review and program guidelines. Two consecutive Scotsman Guide Top Mortgage Workplace recognitions (2025, 2026).
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Informational only. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
References
1. Terner Center ADU owner survey
2. Terner Center and CCI, ADUs for All
3. CFPB Regulation Z, section 1026.3
This article is part of Lendmire’s investment property cash-out refinance program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Banks That Offer a DSCR Cash-Out Refinance on a Two-to-Four Unit Investment Property · Banks That Offer a DSCR Cash-Out Refinance on an Airbnb With Less Than a Year of Bookings
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Important disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage brokerage. Lendmire is not a direct lender, depository institution, or financial advisor. All loan inquiries are subject to lender underwriting; this article does not constitute a commitment to lend. Rates, terms, and program guidelines are subject to change without notice and vary by borrower profile, property type, and state. Information in this article is general in nature and is not financial, legal, or tax advice. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.