The Quick Read: When the interest-only window ends, a $4M balance starts amortizing over the years that remain. The rate on a fixed note stays put, but the payment steps up sharply, and rent coverage drops with it. For a borrower whose wealth sits in one stock, the loan is reviewed on the property, yet the cushion behind it can shrink at the worst moment.
- The reset changes the payment structure, not the rate, on a fixed-rate note.
- A 120-month interest-only period on a 30-year term leaves 20 years to repay the full balance.
- Your stock does not set the DSCR ratio. It matters through reserves and your ability to absorb a bad stretch.
- Model coverage on the amortizing payment before you sign, not just on the interest-only payment.
- A refinance at reset depends on the property, leverage and liquidity you have then, not today.
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. DSCR stands for debt service coverage ratio: the property’s monthly rent divided by its monthly debt obligation. Our complete DSCR loans guide covers the basics. This article covers one narrow situation: a large interest-only loan, a reset date, and a borrower with a lopsided brokerage account.
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Rate source: Freddie Mac 30-yr average via FRED® — Federal Reserve Bank of St. Louis · effective Oct 15, 2026
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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.
Key Terms Defined
Interest-only (IO) period: The stretch of the loan where payments cover interest only, so the balance does not fall.
Reset (or recast): The scheduled point where the loan switches from interest-only to payments that include principal.
ITIA: Interest, taxes, insurance and association dues. Lenders test coverage on this during the IO window.
PITIA: The same list with principal added. This is what the payment becomes after reset.
Reserves: Liquid funds left after closing that could cover payments if rent stops.
Concentrated position: A large share of your wealth in one company. Citizens Private Bank describes it as typically more than 10 to 20 percent of a portfolio.
Haircut: The percentage a lender trims off an asset, such as stock, because its value can swing.
What Actually Happens at Reset on a $4M Balance?
The balance does not change. The time left to repay it does. During the IO window, you pay only interest, so the loan balance stays flat. At reset, the lender recalculates the payment to retire that same balance over the remaining term.
Across the wholesale network we place large files with, a common structure is a 120-month IO period on a 30-year or 40-year term. On the 30-year term, that leaves 20 years of amortization. On the 40-year term, it leaves 30. Either way, you are not starting a fresh 30-year clock.
Two things people get wrong here. First, the rate does not reset on a fixed-rate note. Only the payment type changes. Second, the step-up is not caused by taxes, insurance or dues drifting upward. Those move on their own schedule. The recast is a separate event layered on top.
Here is how coverage behaves, using modeled ratios rather than real figures. Say a file clears 1.25x on ITIA at closing. After the recast, the same rent sits against a payment that now includes principal. That ratio can land below 1.00x. Coverage looks strongest on day one and weakest right after reset.
One more point: the IO lift only helps where the program tests on the interest-only payment. On the programs we place files with at this size, interest-only files are qualified on ITIA. Some lenders in the network stress-test the amortizing payment instead, so ask which test applies before you assume the lift.
Where a $4M Loan Sits on the Leverage Ladder
At this size, leverage is lower and the review is stricter. Through select wholesale programs, a purchase or rate-and-term loan in the $3M to $4M band typically tops out at 65% LTV with credit of 700 or higher. Above $4M, the ceiling is 60% on review, case by case before submission. Cash-out is not available above $3M. All of this is subject to underwriting.
Above $3M, most programs also add overlays. Expect 0x30x24 mortgage history, 48-month seasoning after a credit event, and citizens or permanent residents only. Two appraisals are required above $2M, and reserves run six months of ITIA on the subject property. Cash-out proceeds never count toward those reserves.
That last point shapes your exit. A refinance at reset on a balance this size is a rate-and-term move. It will not hand you cash to retire principal. If the plan was to pull equity out later to fund a paydown, the ladder says otherwise.
Why Concentrated Stock Changes the Risk
The stock does not qualify you, but it can weaken your cushion. A DSCR file qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. Your brokerage account is not income in the file. It shows up in two places: the reserves requirement, and your real-world ability to cover the property if rent stalls.
Here is the correlation problem. A single-stock drop can cut your liquid cushion right when the payment jumps. Weak equity markets can also coincide with tougher refinance conditions. You would be hit on three fronts at once: a higher payment, a smaller reserve, and fewer exits.
Selling is not a clean fix either. Schwab notes that tax on a large appreciated position is a major barrier to diversifying. Insider or affiliate status can also limit when you may trade, as Raymond James outlines for concentrated holders. You may not want to sell shares to pay down principal, and you may not be free to.
Remember that DSCR loans typically run full recourse to the borrower or guarantor, depending on the note and how title is held. Your stock does not drive qualification, but it is not irrelevant to the downside.
How Lenders Treat the Stock Account
Reserves are verified, not assumed, and volatile holdings count for less. Programs we see usually review recent brokerage statements to confirm that reserves exist and are liquid. They are not used to rebuild your income.
Most programs apply a haircut to market-based assets, and the percentage varies by lender, so we do not publish one. A stable, diversified account weighs more than a margin account with leveraged positions at the same balance. Unvested equity and stock options generally do not count. Only vested, liquid shares do.
Then there is borrowing against shares. A securities-backed line of credit lets you draw cash against a position without selling it. The catch is spelled out in the SEC’s Investor.gov alert on securities-backed lines: a concentrated portfolio can drop sharply, trigger a maintenance call, and force sales at the bottom.
Whether a given program counts borrowed funds as reserves is a program-by-program question. Ask before you structure around it. And never count the same shares twice, once as pledged collateral and again as reserves. Treat that as a hard rule for your own planning.
Stress-Testing the Reset Against a Stock Drawdown
Run the amortizing payment and the stock decline together, not separately. The table below is a planning frame, not a prediction.
| Stock scenario | Reserve cushion | What to do |
|---|---|---|
| Flat | Intact | Confirm coverage on the amortizing payment |
| Down moderately | Reduced | Shift reserves into diversified, liquid form |
| Down sharply | Thin or pledged | Pay down principal early or sell the property |
If coverage on the amortizing payment sits well above the program floor, a stock drop hurts less. If it sits near 1.00x or under, you are relying on the cushion to carry the property. That is the honest test.
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.
What Are Your Exit Paths at Reset?
You have four exits, and each depends on conditions you cannot see today. Compare them before you sign.
| Exit path | What must be true | Stock-related risk |
|---|---|---|
| Refinance | Coverage, LTV and reserves pass then | Weak stock and weak lending can coincide |
| Sell the property | Value supports payoff | Low if proceeds cover the loan |
| Hold and amortize | Rent covers the new payment | Cushion erodes if stock falls |
| Pay down with share sales | Shares are free to sell | Tax cost and insider limits |
A refinance is not a given. It needs coverage, leverage and reserves that qualify at that moment. A voluntary paydown before reset lowers the balance that has to amortize, which softens the step-up.
Where the General Rule Breaks
The usual story shifts in a few named cases.
- ARM instead of fixed. An adjustable IO loan stacks two changes: the amortization shift and a scheduled adjustment to the loan’s terms, so the payment can move for more than one reason.
- Longer IO windows. The longer the interest-only window, the shorter the amortization that remains, and the bigger the step-up.
- Short-term rentals. These files top out at $2M and qualify on documented operating history at a discount to gross rent. They are not the $4M conversation. Municipal permission is documented per property, and local rules vary.
- Sub-1.00 coverage. Select lenders in the network will review lower-coverage files, but LTV and terms adjust, subject to underwriting. At a $4M balance, expect that to mean less leverage, not more.
- Review above $4M. Every request is reviewed case by case, purchase or rate-and-term only.
A Reset-Proofing Checklist
Start well before the reset date. Work through these in order.
1. Model coverage on the amortizing payment now, at your current rent and again with flat rent.
2. Decide whether you will refinance, sell, or hold, and write down the trigger for each.
3. Move reserves toward diversified, liquid holdings that are not a single volatile position.
4. Check whether any shares are pledged, restricted or subject to insider rules.
5. Consider a voluntary principal paydown before reset if coverage looks thin.
6. Ask a tax professional about the cost of selling before you need to. Tax treatment varies; consult a qualified professional.
Frequently Asked Questions
What happens when the IO period ends?
The loan recasts. Your unchanged balance amortizes over the remaining term, so the payment includes principal and steps up. On a 120-month IO period with a 30-year term, you have 20 years left to repay the full balance.
Does my rate change at reset?
On a fixed-rate note, no. Only the payment structure changes. On an adjustable-rate interest-only loan, the amortization shift and an adjustment to the note terms can both land, which is why fixed and ARM structures behave differently.
Can I count my shares as reserves?
Often yes, if they are vested, liquid and verifiable, though lenders apply a haircut that varies by program. Programs typically want six months of ITIA on the subject property. Unvested equity and options generally do not count, and cash-out proceeds never satisfy reserves on the super jumbo programs we place. Everything is subject to underwriting.
What if my stock falls before reset?
Your DSCR ratio does not change, because it runs on rent and the property’s debt payment. Your cushion does shrink, and your refinance options may narrow. Stress-test the reset against a sharp decline now, and lean toward holding reserves in more than one position.
Can I refinance before the reset?
Possibly, if the property, leverage and reserves qualify at that time. At this balance size, a refinance is rate-and-term only, with no cash-out above $3M. Treat it as one option, not a guarantee.
Next Step
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. Lendmire is a mortgage broker arranging business-purpose financing through select lenders in its wholesale network, across 41 markets including Washington, D.C. Nothing here is a commitment to lend or tax or investment advice.
Lendmire’s self-employed mortgages page presents both super jumbo programs, bank statement and DSCR, side by side.
About Lendmire
A non-QM mortgage broker (NMLS# 2371349), Lendmire arranges DSCR financing for real estate investors in 41 markets — 40 states plus Washington, D.C. Because deals are underwritten primarily on property cash flow rather than personal income documentation, the structure suits self-employed buyers and entity-owned portfolios. Lendmire places loans through wholesale investor lenders; it is not a direct lender. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Citizens Private Bank – Concentrated stock strategies
2. Schwab – How to Manage Stock Concentration Risk
3. Raymond James – Concentrated holdings
4. SEC Investor.gov – Investor Alert: Securities-Backed Lines of Credit
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 a Luxury Condo DSCR Loan Works · How a Malibu Luxury Rental DSCR Loan Works · Super Jumbo DSCR vs Bank Statement Loan for an AUM-Based Borrower
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Legal disclosures. Lendmire (NMLS# 2371349) is a state-licensed mortgage brokerage that arranges financing through wholesale lender relationships. Lendmire is not a direct lender, depository institution, or registered financial advisor. The discussion above is general informational content about real estate financing — it is not financial, legal, or tax advice, and readers should consult licensed professionals for guidance on their individual circumstances. Loan inquiries are subject to lender underwriting; this article does not represent a commitment to lend. Loan terms, rates, and qualification standards vary by borrower, property, and state, and are subject to change at any time. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.