A refinance surplus can turn into a cash contribution when cash flow, value or interest rates change. Separate each shock, identify the binding loan constraint and reconcile net proceeds to payoff.
This is a hypothetical stress case. It does not describe an actual borrower, completed transaction or forecast. The purpose is to show why a refinance model should test cash flow, collateral value and borrowing cost independently before combining them. A borrower can remain current on today’s loan and still be unable to refinance its maturity balance.
The starting property has $500,000 of annual cash flow accepted for underwriting, an $8 million modeled value and a $4.8 million principal payoff. Assume 2% of the new loan is spent on refinancing costs. Additional reserve deposits, accrued payoff interest and prepayment charges are excluded and would be separate uses in an actual file.
Establish the same tests in every scenario
The hypothetical new lender limits debt to the lowest of 65% LTV, 1.25× DSCR and 9% debt yield. The base payment uses 6.5% interest and 30-year monthly amortization. No initial interest-only period is assumed for sizing.
The OCC’s refinance-risk guidance discusses current underwriting, prevailing rates and stress testing. The numerical thresholds here are original model inputs, not its prescribed limits. Holding the tests constant isolates the effects of the selected changes.
Keep “value” and “NOI” separate inputs for the initial sensitivity exercise. If your valuation method derives value from NOI and a cap rate, reconnect them in a second model and avoid counting the same decline twice without explanation. The isolated value shock here represents an independently assumed collateral-value change.
Base case: value limits the refinance
At $8 million of value, 65% LTV supports $5.2 million. At $500,000 of cash flow, the DSCR ceiling is approximately $5,273,694 and the debt-yield ceiling is $5,555,556. The value test therefore limits the new loan to $5.2 million.
After 2% costs, net proceeds are $5.096 million. Paying $4.8 million of principal leaves $296,000 before the excluded uses. That is the model’s starting cushion, not a guaranteed cash-out distribution.
Change one assumption at a time
The income shock reduces cash flow by 15% to $425,000 while holding value and rate constant. The value shock reduces value by 15% to $6.8 million while holding income and rate constant. The rate shock raises interest to 8% while holding the other inputs at their original amounts.
| Scenario | LTV ceiling | DSCR ceiling | Debt-yield ceiling | Modeled loan | Binding test |
|---|---|---|---|---|---|
| Base | $5,200,000 | $5,273,694 | $5,555,556 | $5,200,000 | LTV |
| NOI falls 15% | $5,200,000 | $4,482,640 | $4,722,222 | $4,482,640 | DSCR |
| Value falls 15% | $4,420,000 | $5,273,694 | $5,555,556 | $4,420,000 | LTV |
| Rate rises to 8% | $5,200,000 | $4,542,783 | $5,555,556 | $4,542,783 | DSCR |
| All three changes | $4,420,000 | $3,861,366 | $4,722,222 | $3,861,366 | DSCR |
The governing constraint changes. In the rate shock, value remains $8 million but payment capacity supports much less debt. In the value shock, cash flow remains $500,000 but collateral limits proceeds. Those require different conversations and cannot be explained by one generic statement that “the lender reduced leverage.”
Convert each loan amount to a cash requirement
Apply costs to the new loan amount, then subtract the unchanged $4.8 million payoff. Do not calculate 2% of property value or use the old principal as the fee base unless the actual fee agreement says so.
| Scenario | New-loan costs at 2% | Net after costs and payoff |
|---|---|---|
| Base | $104,000 | $296,000 surplus |
| NOI shock | $89,653 | $407,013 contribution needed |
| Value shock | $88,400 | $468,400 contribution needed |
| Rate shock | $90,856 | $348,073 contribution needed |
| Combined shock | $77,227 | $1,015,862 contribution needed |
The combined shortfall is not the sum of the individual shortfalls. Loan sizing takes the minimum of multiple nonlinear or differently affected constraints. Adding three independently calculated deficits would misstate the combined case.
Trace the cause before choosing a response
If income is the issue, distinguish a temporary interruption from a persistent loss and support the distinction with leases and collections. A lender might recognize different evidence under a different structure, but a more optimistic spreadsheet cannot establish it.
If value is the issue, examine the appraisal assumptions and available evidence. A factual correction can matter; a sponsor’s preferred price is not independent support. If the rate is the issue, compare payment structures and total obligations, including the principal remaining at the next maturity. A longer amortization can improve current sizing while leaving more debt outstanding later.
An equity contribution may solve the modeled principal gap but not every underwriting condition. The sponsor must still retain required liquidity, pay excluded costs and satisfy the actual lender’s requirements. Conversely, holding a cash reserve does not establish that an extension is contractually available.
Turn the stress into a dated action plan
Record the current payoff, intended refinance date, data needed to confirm accepted cash flow, report lead times and loan notice deadlines. Assign a decision point early enough to evaluate sale, equity or other feasible alternatives if the downside persists.
Identify the source of any proposed contribution and its availability under stress. Borrowing the contribution elsewhere introduces new debt service, collateral or consent issues; it is not equivalent to cash equity with no further obligations.
The stress model should finish with a decision threshold: the amount of accepted cash flow, value or sponsor cash needed for the chosen path to work. Review that threshold as actual evidence changes. The useful output is an actionable funding requirement, not a colorful sensitivity table detached from the maturity calendar.
Sources and evidence
- OCC Bulletin 2024-29 — Refinance RiskTransaction-Level Risk Management and Risk-Rating Considerations and Portfolio-Level Analysis · Checked 2026-10-21 · Bank supervisory context; hypothetical stress inputs are not forecasts or regulatory minimums.
Source dates and applicability matter. Report an error or a changed source.