Cash-out is nearly half of everything we fund — 47% of the $1.58 billion across 3,469 DSCR loans we closed between January 2025 and June 2026. But a meaningful slice of those borrowers walked in asking the wrong question. They were sitting on 3.5–4% first mortgages locked in 2020–2021, they needed $75K–$150K of equity for the next acquisition, and a full cash-out refinance would have repriced every dollar of that old loan at today's rates.

For those files, the right tool is usually a DSCR second mortgage — a fixed-rate, closed-end second lien that sits behind your existing first and leaves it completely untouched. Same 4% rate, same payment, same amortization schedule. The second is its own note, its own payment, its own lien.

Here's the catch: only a minority of the 50+ wholesale lenders on our panel offer a DSCR closed-end second (CES) at all. A handful do it well. That's the entire reason to run this through a broker — the product exists, but you won't find it by calling the lender that did your first.

This guide covers how a DSCR second works, the CLTV and combined-DSCR math that sizes it, typical 2026 terms, the blended-rate math on second vs. cash-out refi (with a worked example), and how it stacks up against the near-mythical investment-property HELOC.

What a DSCR Second Mortgage Actually Is

A DSCR second mortgage — also called a DSCR closed-end second or DSCR CES — combines two things:

"Closed-end" is the part that trips people up. It means you receive the full loan amount as a lump sum at closing and pay it back on a fixed schedule — like a normal mortgage, just in second position. There's no credit line, no draw period, no variable rate. That's the structural difference from a HELOC, which is an open-end revolving line.

The whole appeal is what doesn't happen: your first mortgage is never paid off, never re-underwritten, never repriced. The servicer doesn't change. The amortization clock doesn't reset. You keep the rate you'll probably never see again, and you borrow only the new money at today's pricing.

CLTV and Combined DSCR: The Two Numbers That Size the Loan

DSCR firsts are sized on LTV and the property's standalone DSCR. Seconds add one letter and one payment to each calculation.

CLTV — Combined Loan-to-Value

CLTV is both liens divided by appraised value:

Guidelines across our panel run 70% to 75% max CLTV on DSCR seconds, with a handful stretching a bit further for the strongest files. Compare that to first-lien programs — up to 85% LTV on purchases, and 75–80% on cash-out refis — and you can see the CLTV cap is the binding constraint. On the $600K property above, a 75% CLTV cap means total debt of $450,000, so the maximum second behind the $300K first is $150,000. The lower your existing first balance, the more room the second has.

Combined DSCR — Both Payments in the Denominator

The lender doesn't calculate DSCR on the second in isolation. They run a combined DSCR: gross monthly rent divided by the full PITIA on the first lien plus the P&I on the new second.

Combined DSCR ExampleAmount
Gross monthly rent (lease / Form 1007)$3,600
First lien P&I ($300K @ 3.875%, 30-yr)$1,411
Taxes + insurance$550
First lien PITIA$1,961
New second P&I ($100K @ 9.25%, 30-yr)$823
Combined monthly obligation$2,784
Combined DSCR ($3,600 ÷ $2,784)1.29

Most programs want the combined number at 1.0 to 1.15 or better; floors vary lender to lender across our panel, and pricing improves as the ratio climbs. Notice what the cheap first does for you here: because the existing PITIA is small, the combined DSCR stays strong even after adding the second. The same property refinanced entirely at 2026 rates would ratio much thinner — we'll show that exact math below. You can run your own scenario on our DSCR calculators.

Typical DSCR Second Mortgage Terms in 2026

Because only a handful of our 50+ lenders offer the product, terms cluster tightly. Here's the realistic shape of the box:

FeatureTypical Range Across Our Panel
StructureClosed-end, fixed rate, fully amortizing (no draws)
Term10, 15, 20, or 30 years; 30-yr fixed is most common
Loan amountsRoughly $50K–$500K; sweet spot $75K–$250K
Max CLTV70–75%
Combined DSCR floor1.00–1.15; best pricing at 1.20+
Rate premium vs. a first lienTypically 1.5–2.5 points above where the same file prices as a first
Minimum FICOMostly 680+; a couple of lenders reach to 660
Prepayment penalty1–3 years, shorter than typical DSCR firsts
VestingPersonal name or LLC (with personal guarantee)
First lien requirementMust be an institutional lien in good standing; some cap the first's LTV too

On pricing: this week our strongest first-lien files are locking 6.50–6.875% and standard files run 7.25–8.00% (current tiers on our DSCR rates page). Apply the second-lien premium and a standard file's CES typically lands in the low-to-mid 9s. That sounds expensive until you remember it's only priced on the new money — which is the entire point of the next section.

One more structural note: the second lender will review your first mortgage. They'll want a payoff-free, current, institutional first lien — no private notes, no active forbearance, no lates in the last 12 months. A few also cap the first's standalone LTV or require the first to be a fixed rate, so bring your current mortgage statement to the first conversation.

The Blended-Rate Math: When a Second Beats a Cash-Out Refi

Here's the decision every sub-4%-first borrower faces, with real numbers. Same property as above: $600,000 value, $300,000 first at 3.875%, and the investor wants $100,000 for the next down payment.

Option A: Cash-Out RefiOption B: Keep First + DSCR 2nd
First lienNew $400K @ 7.625%Existing $300K @ 3.875% (untouched)
Second lien—$100K CES @ 9.25%
Total debt$400,000$400,000
Blended interest rate7.625%5.22%
Total monthly P&I$2,831$2,233
Monthly savings—$598/mo ($7,176/yr)
Combined DSCR (at $3,600 rent)1.061.29

The blended rate on Option B is (300,000 × 3.875% + 100,000 × 9.25%) ÷ 400,000 = 5.22%. Even paying 9.25% on the second, the portfolio-level cost of debt is nearly two and a half points below the refi.

The sharper way to see it is the marginal cost of the new money. The refi's annual interest is roughly $30,500; keeping the old first costs $11,625. So accessing $100,000 through a full refi costs you $18,875 a year in extra interest — an effective 18.9% rate on the cash you actually extracted. Nobody would knowingly borrow $100K at 18.9%, but that's precisely what giving up a 3.875% first to get it means.

And the DSCR line matters as much as the payment line. At $3,600 rent, Option A ratios at 1.06 — approvable, but thin, and priced accordingly. Option B ratios at 1.29, which is comfortably above the 1.16 median DSCR across our funded book and earns better pricing. On tighter rent, Option A might not qualify at all while Option B sails through.

When the Cash-Out Refi Still Wins

We broker both, so here's the honest other side. A full DSCR cash-out refinance is the better tool when:

The rule of thumb we use: if your first is more than about 1.5 points below today's cash-out pricing, run the second-mortgage math before you sign refi disclosures. Below that spread, the blended-rate advantage usually evaporates.

Sitting on a Sub-4% First?

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DSCR Second vs. HELOC on an Investment Property

Every investor's first instinct is "I'll just get a HELOC." On a primary residence, fine. On a rental, the market barely exists — most banks pulled investment-property HELOCs years ago, and the few that remain underwrite them like personal loans. We covered the full comparison in DSCR loan vs. HELOC; here's the second-lien-specific version:

FactorDSCR Closed-End SecondInvestment-Property HELOC
AvailabilityA minority of wholesale DSCR lenders — but they exist and we know whichRare; mostly local banks/credit unions, often existing customers only
Rate typeFixed for the full termVariable (prime + margin); moves with the Fed
QualificationProperty rent (combined DSCR); no tax returnsPersonal income, tax returns, full DTI
FundsLump sum at closingRevolving draws during draw period
Interest charged onFull balance from day oneOnly what you draw
LLC vestingYes, standardAlmost never
Typical CLTV cap70–75%Often 60–70% on rentals, with small line limits
Self-employed / no-doc friendlyYes — that's the productNo

The HELOC's one genuine advantage is flexibility: if you don't know when you'll need the money, paying interest only on drawn balances is real value. But for a defined use — a down payment, a renovation budget, a partner buyout — the fixed-rate CES wins on certainty, and it's the only realistic option if the property is vested in an LLC or your tax returns don't tell the income story a bank wants to read.

Qualifying, Costs, and Prepayment Penalties

What the File Looks Like

A DSCR second underwrites like a lighter version of a DSCR first:

Closing Costs

Seconds are cheaper to close than refis for one simple reason: the loan amount is smaller and you're not re-doing the first. Expect origination points on the second's balance (not the combined debt), title on the second lien only, and no re-escrowing of taxes and insurance — your first's escrow account keeps running untouched. Where a full refi might also trigger months of rebuilt escrows at the table, the CES doesn't. Timelines run faster too: with an AVM-eligible file, 2–3 weeks door to door is realistic.

Prepayment Penalties

Most DSCR seconds carry a prepay, but shorter than firsts — typically 1–3 years versus the 3–5 year structures common on first liens. Reduced and zero-prepay options exist for a pricing adjustment, and state rules apply (California, for example, restricts prepays on certain property types). One planning note: if you expect to sell the property or refinance everything within two years, buy the prepay down or off at closing — the math on eating a penalty rarely works. Full breakdown in our DSCR prepayment penalty guide.

One Trap to Avoid: the Due-on-Sale Panic

Borrowers sometimes worry that adding a second violates their first mortgage. It doesn't. Recording a junior lien is not a sale or transfer; your first lender's consent is not required, and conventional first liens don't prohibit subordinate financing. What can cause trouble is moving the property into an LLC at the same time as the second — sequence that carefully and talk to us first.

Frequently Asked Questions

What is a DSCR second mortgage? +
A DSCR second mortgage is a fixed-rate, closed-end loan secured in second lien position behind your existing first mortgage on a rental property. It qualifies on the property's rent instead of your personal income, and your first mortgage — rate, payment, servicer — stays completely untouched.
How is DSCR calculated with two mortgages on the property? +
Lenders use a combined DSCR: monthly rent divided by the full PITIA on the first lien plus the P&I on the new second. Example: $3,600 rent against a $1,961 first PITIA and an $823 second payment is $3,600 ÷ $2,784 = 1.29 DSCR. Most programs want the combined number at 1.0 to 1.15 or better.
What is the maximum CLTV on a DSCR second mortgage? +
Guidelines across our panel run 70% to 75% combined loan-to-value — first balance plus new second, divided by appraised value. That is tighter than the 75-80% most lenders allow on a first-lien cash-out refinance, and it is the binding constraint on how much cash you can pull.
Is a DSCR second mortgage better than a HELOC on a rental property? +
For most investors, yes. Investment-property HELOCs are scarce, variable-rate, underwritten on your personal income and DTI, and almost never allow LLC vesting. A DSCR closed-end second is fixed-rate for the full term, qualifies on the property's rent, and can close in your LLC. The HELOC's advantage is revolving access — you only pay interest on what you draw.
Do DSCR second mortgages have prepayment penalties? +
Usually. Most DSCR seconds carry a 1-3 year prepayment penalty, shorter than the 3-5 year structures common on DSCR firsts. Reduced or zero-prepay options exist for a rate or fee adjustment, and states like California restrict prepays on some property types.
Can I get a DSCR second mortgage if the property is vested in an LLC? +
Yes. Like DSCR firsts, DSCR closed-end seconds allow LLC and corporate vesting with a personal guarantee from the members. This is a major advantage over bank HELOCs, which typically require the title in your personal name.

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DSCR Capital Partners is a brand of UTM Financial, LLC (NMLS #2591548), a licensed mortgage broker. Rate and payment figures are illustrative examples, not offers to lend. Informational only; not a loan commitment. Equal Housing Lender.