The Quick Read: You refinance an adjustable-rate loan from a private bank by applying for a brand-new fixed-rate loan that pays off the old note. The new lender reviews the property’s rent against the full monthly obligation, plus your credit, reserves, and appraised value. Nothing converts automatically, and every step is subject to underwriting.
- The new loan is a fresh application, not an edit of your ARM.
- Coverage is measured on the fixed, fully amortizing payment, not your old teaser or interest-only payment.
- Through select wholesale programs, leverage steps down as the balance climbs: 80% on a purchase or rate-and-term up to $1,000,000, then 75% to $3,000,000.
- Cash-out gets tighter fast and stops above $3,000,000.
- Your old bank’s prepayment terms and any relationship pricing belong in the math before you apply.
Think of this as a swap. The old loan leaves, a fixed one arrives, and the rent on the property has to carry the new payment.
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Rate source: Freddie Mac 30-yr average via FRED® — Federal Reserve Bank of St. Louis · effective Oct 15, 2026
Prefilled with starting assumptions — enter your own rent or nightly figures, taxes, insurance, and HOA for a more accurate picture.
Program parameters update from Lendmire’s centralized guideline source. Taxes and insurance are editable estimates.
As of Oct 15, 2026 · General Freddie Mac market benchmark, not a Lendmire loan offer. Rent, nightly rate, occupancy, taxes, and insurance are editable estimates. Short-term rental figures are estimates only and vary significantly by season, property type, management approach, and local short-term-rental rules — confirm local regulations before relying on them. Qualifying income for short-term rentals varies by program — some use appraisal market rent, others use documented STR history or projections — and is confirmed in underwriting. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
What Does This Refinance Actually Look Like?
A new lender pays off the private bank’s adjustable loan and replaces it with a fixed-rate loan. You are buying payment certainty with a new set of qualification rules.
Private banks often write jumbo ARMs with a long interest-only period. Your payment is low at first, then climbs when principal gets added. A fixed loan removes that second step. It also removes the market-driven reset.
The ARM mechanics are simple once you read the note. When the introductory period ends, the index plus the margin becomes your new rate, subject to caps. After that, changes follow the market, not your finances. The lender picks the index at application and sets the margin in the loan agreement, and neither generally changes after closing.
“Super jumbo” has no official definition. No agency sets a dollar line for it. Lenders draw their own. Across Lendmire’s wholesale network, the portfolio investor program runs from $150,000 to $10,000,000, while the standard DSCR program stops at $3,000,000.
DSCR loans are designed for non-owner-occupied investment properties. Because they are business-purpose investor loans, they are reviewed differently from a standard owner-occupied mortgage. Instead of your traditional personal-income documentation, the loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines.
Key Terms Defined
DSCR (debt service coverage ratio): Monthly rent divided by the full monthly obligation. A 1.00 means rent equals the payment.
PITIA: Principal, interest, taxes, insurance, and association dues. It is the payment the rent has to cover.
ITIA: The same payment without principal. Interest-only files are qualified on it.
Rate-and-term refinance: A new loan that replaces the old balance without pulling equity out.
Cash-out refinance: A new, larger loan that pays off the old one and hands you the difference.
Seasoning: The waiting period a lender wants between events, such as buying and refinancing. It is lender policy, not law.
Index and margin: The market benchmark plus the fixed markup that together set an ARM’s rate after reset.
Prepayment penalty: A charge for paying a loan off early, usually inside a set window.
Vesting: How title is held, whether personally or in an entity.
Step One: Read Your ARM Note
Pull the note before you call anyone. You need five items: the index, the margin, the caps, the first reset date, and the date any interest-only period ends. The CFPB’s ARM handbook walks through index, margin, and adjustment periods if the language is unfamiliar.
Then compare the right numbers. The new fixed payment should be compared to your post-reset payment, not today’s teaser payment. Comparing against the teaser makes every refinance look like a loss.
Also look for these in the note:
- A prepayment clause, a lock period, or a relationship clawback. Private-bank terms vary widely, so read yours.
- Any link between this loan and deposit or investment balances at the bank.
- Cross-collateral language tying this property to other loans.
Step Two: Run the Coverage Math on the Fixed Payment
This is where most private-bank borrowers get surprised. An ARM with an interest-only period was qualified without principal. A fully amortizing fixed loan adds principal back in. Coverage often tightens.
Run the number this way: monthly rent, divided by principal, interest, taxes, insurance, and dues. Rent comes from the lease or the appraiser’s market rent schedule. Taxes and insurance count, so a reassessment after a purchase can pull coverage down.
Across the wholesale network, 1.00 coverage earns full leverage. Select programs also review coverage from 0.75 to 0.99 up to $2,000,000, but LTV and terms adjust, subject to underwriting. Another path exists through a handful of lenders: no-ratio files reach $2,000,000 within a defined envelope of credit, housing history, and reserves, subject to underwriting.
Run two scenarios. Say you hold a luxury rental where the interest-only ARM payment sits comfortably under rent. On the fixed amortizing payment, the same rent might land near 1.0x. That is borderline, not broken. Interest-only is also available on the new loan: a 120-month interest-only period on 30- and 40-year terms, 75% maximum, coverage of 0.75 or better, qualified on ITIA, subject to underwriting.
Passing coverage is not positive cash flow. Leave room for vacancy and repairs.
How Does Leverage Change at Super Jumbo Size?
Leverage steps down as the loan grows, and credit requirements climb. This ladder reflects select wholesale programs at coverage of 1.00 or higher. Every figure is a ceiling, subject to underwriting.
| Loan size | Rate-and-term | Cash-out | Credit |
|---|---|---|---|
| $150K–$1M | 80% | 75% | 660+ |
| $1M–$1.5M | 75% | 70% | 700+ |
| $1.5M–$3M | 75% | 60% | 720+ |
| $3M–$4M | 65% | — | 700+ |
| $4M–$6M | 60% on review | — | 700+ |
| $6M–$10M | 60% on review | — | 700+ |
Above $4,000,000, every request is reviewed case by case before submission, and only purchase or rate-and-term applies. Above $2,000,000, expect two appraisals. Above $3,000,000, the files want 0x30x24 housing history, 48-month event seasoning, and citizens or permanent residents only. Rural property is out at that tier.
Reserves are typically six months of PITIA on the subject property, or ITIA if interest-only. First-time investors usually need twelve. Cash-out proceeds never satisfy reserves.
Most borrowers swapping an ARM want rate-and-term. If coverage is thin, do that first. Cash-out can wait.
Step Three: Choose Rate-and-Term or Cash-Out
Rate-and-term pulls no equity. It carries the lighter qualification bar and the higher leverage ceiling.
Cash-out is a different file. Proceeds are unlimited at or below 60% LTV, and capped at $1,500,000 above 60%. There is no cash-out above $3,000,000, and none for credit at 680 or below above $1,500,000. Net cash is always lower than the LTV math suggests, because payoff, closing costs, reserves, and any prepayment charge come out first. Terms vary by lender guidelines, property type, leverage, credit profile, and full file review.
For a deeper look at whether a private-bank luxury rental can move into this kind of loan, see Lendmire’s piece Can a Private-Bank Luxury Rental Refinance Into Super Jumbo DSCR?.
DSCR vs. conventional financing
There are two common ways to finance an investment property, and they qualify you differently — here’s how investors weigh them.
Why investors choose it
- Qualifies on the property’s rental income — no personal tax returns, W-2s, or pay stubs needed to document income.
- No personal debt-to-income ceiling to clear, so existing mortgages and obligations don’t cap your borrowing the same way.
- Can be closed in an LLC, keeping the property inside a business entity.
- Built for scaling — not held to the limit on number of financed properties that conventional financing applies.
- Underwriting centers on the deal: generally qualifies when the rent covers the payment, a 1.00x coverage ratio being a common baseline (confirmed in underwriting).
- Designed specifically for investment property, including long-term and, where the program allows, short-term rentals.
Where it’s strong
- Often the lowest ongoing financing cost for a buyer who fully qualifies on personal income — a fit for a first property or a cost-first purchase.
Trade-offs for investors
- Requires full personal income documentation and must fit within a debt-to-income limit — salary, existing debts, and other mortgages all count.
- Typically held in your personal name rather than a business entity.
- Caps how many financed properties you can carry, which can become a ceiling as a portfolio grows.
- Evaluates you as a borrower as much as the property, which usually means more paperwork.
How investors usually choose: a first or single property often optimizes for the lowest financing cost; portfolio builders often optimize for leverage, vesting in an LLC, and scaling past conventional caps. The right answer depends on your goals, the property, and current guidelines — both paths run through select lenders in Lendmire’s wholesale network, with eligibility and terms confirmed in underwriting.
Step Four: Appraisal, Payoff, and Closing
The appraisal does two jobs. It sets value, which drives LTV. It also sets market rent, which drives coverage. For rentals, the rent schedule form is the 1007, and the 1025 covers 2–4 units.
Then handle the payoff. Request a payoff letter from your private bank. If the old note carries a prepayment penalty and its window is open, that is a closing cost. It does not follow you to the new loan, and the new loan starts its own clock.
Title, insurance, and entity documents come next. You may close in an LLC, subject to program terms, with no layered entities. Moving from personal title to an entity at refinance raises title and insurance questions, so raise them with your attorney early.
The loan is a business-purpose loan, and the federal rulemaking treats investment-purpose loans as business-purpose loans outside the ability-to-repay rules. That is why the file runs on rent. It is not a loophole. Lenders still review credit, assets, reserves, title, insurance, and the appraisal.
Lendmire, a mortgage broker, arranges these files through select lenders in its wholesale network across 41 markets, including Washington, D.C. Its complete DSCR loans guide covers the baseline program in more depth.
Where the General Rule Breaks
Relationship pricing disappears. Private banks may discount for deposits or investment balances. A DSCR loan has no such tie. You are trading that discount for a fixed payment, so weigh both honestly.
Owner-occupied collateral. If you live in the property, it is not a business-purpose loan, and DSCR does not apply. This refinance is for rentals only.
Short-term rentals. They qualify on twelve months of operating history on a refinance, at 80% of gross, with coverage of 1.00 or higher and loans to $2,000,000. Experienced investors only. Municipal permission has to be documented for the specific property. Short-term rental rules can vary by city, county, HOA, and property type, so confirm local rules before relying on projected rental income.
Thin rent. If coverage falls short, options include a paydown, interest-only structuring, or a sub-1.00 program through select lenders, where LTV and terms adjust.
Serial interest-only restarts. Refinancing into a new interest-only term resets the clock without reducing the balance, and costs recur each time. A refinance exit is a plan, not a guarantee.
Property type. Eligible collateral is 1–4 units, including warrantable and non-warrantable condos. Non-warrantable condos reach 75% and $1,500,000.
One practitioner observation: the files that stall most often are not the ones with thin coverage. They are the ones where the borrower compared the new payment to the teaser and found out late that the true comparison was the post-reset figure.
What Does the Decision Look Like in Practice?
Fixed wins when payment certainty matters more than the last point of cost. It is less compelling when you plan to sell soon, because the new loan may carry its own prepayment penalty. Market surveys report prepayment schedules stepping down over several years, and structures vary by program, so ask for the schedule before you apply.
A genuine toss-up: staying in the ARM can make sense if reset is far off, the caps are tight, and your hold period is short. Break-even depends on closing costs and how long you keep the property.
Act before the reset, not after. Approval is never guaranteed, and a file needs time on your side.
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.
If you are weighing a private-bank interest-only ARM against a fixed loan that is reviewed on bank statements instead of rent, Lendmire’s comparison of a private-bank IO ARM versus a fixed super jumbo bank statement loan lays out that tradeoff.
Frequently Asked Questions
Can my private-bank ARM convert to a fixed rate?
Not as a rule. A conversion would be a new application and a fresh underwrite. The new loan pays off the old note, so you qualify under whatever guidelines apply at that time.
Does a lower index mean a lower payment?
Not always. Caps and floors on some ARMs can stop a payment from falling even when the market moves down. Check your note.
Will my old prepayment penalty carry over?
No. It is a payoff cost due at closing if its window is open, and the new loan starts its own clock.
Can I close in an LLC?
Entity vesting is welcome, subject to program terms, with no layered entities. Title and insurance details should be settled before closing.
Is there a minimum coverage ratio?
A 1.00 earns full leverage on most select programs. Coverage from 0.75 to 0.99 is a real path to $2,000,000, with LTV and terms adjusting, subject to underwriting.
If you are buying or refinancing a high-balance rental property and want to see how the numbers work, Lendmire can help you compare super jumbo DSCR loan options based on the property income, the loan balance, credit profile, leverage, and investor goals. Call 828-256-2183.
Lendmire’s self-employed mortgages page presents both super jumbo programs, bank statement and DSCR, side by side.
About Lendmire
Lendmire is a non-QM mortgage brokerage (NMLS# 2371349) arranging DSCR investor loans in 41 markets, including Washington, D.C. DSCR eligibility is generally reviewed around property-level rental income rather than personal income, subject to lender and program guidelines, a fit for self-employed investors and LLC-owned portfolios. Lendmire was recognized as a Scotsman Guide Top Mortgage Workplace in 2025 and 2026.
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References
1. CFPB Ask CFPB: ARM index and margin
2. CFPB Consumer Handbook on ARMs
This article is part of Lendmire’s super jumbo DSCR loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How to Qualify for a 40-Year Super Jumbo DSCR Loan · Is Interest-Only Available on a Super Jumbo DSCR Loan? · Can a Retiree With a Large Portfolio Qualify for a Super Jumbo DSCR Loan?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
- North Carolina Real Estate Broker · License# 343312 · Verify on NCREC
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- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
Required disclosures. Lendmire (NMLS# 2371349) operates as a licensed mortgage broker, not a direct lender or depository. The discussion in this article is general in nature and should not be relied upon as financial, legal, or tax advice — every investment scenario is unique and should be reviewed by a qualified professional. Any loan inquiry is subject to lender underwriting, and this article is not a commitment to lend or a guarantee of approval. Mortgage rates, loan terms, and program guidelines vary by borrower, property, and state, and may change without notice. Equal Housing Opportunity. Verify licensure at NMLS Consumer Access.