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DSCR Stress Test Calculator

Lenders require DSCR ≥ 1.20-1.25 at loan origination — but what about 3 years in, when rates have risen, vacancy has spiked, and operating costs have inflated? This calculator runs base/adverse/severe scenarios so you can see how much headroom your deal actually has.

Base annual NOI

Monthly debt service

Covenant DSCR

Adverse vacancy NOI hit %

Adverse opex NOI hit %

Severe vacancy NOI hit %

Severe opex NOI hit %

Base DSCR

1.441

Adverse DSCR

1.254

Severe DSCR

1.009

$ NOI cushion to covenant breach

$53,600

NOI cushion %

16.8%

NOI below which covenant breaches

$266,400

How the math works

Base $320K NOI / $222K debt service = 1.44 DSCR. Adverse (13% total NOI hit): 1.25 DSCR — right at covenant. Severe (30% hit): 1.01 — covenant breach. Cushion at base: $54K NOI (17%) before breach.

If severe scenario breaches covenant, you're either underwriting with not-enough buffer or taking on too much leverage. Target 1.35+ DSCR at origination as a practical floor.

Editorial noteMaintained by EveryCalc - Reviewed June 2026

EveryCalc calculators are designed for fast, practical estimates with transparent inputs and no required account. We use plain formulas, visible assumptions, and related tools so visitors can check the result from more than one angle.

Results are informational only. For financial, tax, legal, medical, construction, or other high-impact decisions, verify the output against primary sources or a qualified professional.

Learn more about our review process on the EveryCalc methodology page.

How this calculator works

What this page estimates

This DSCR Stress Test Calculator is built to give a quick, browser-based estimate for dscr stress test. Lenders require DSCR ≥ 1.20-1.25 at loan origination — but what about 3 years in, when rates have risen, vacancy has spiked, and operating costs have inflated? This calculator runs base/adverse/severe scenarios so you can see how much headroom your deal actually has. The inputs stay on the page during normal use, and the result should be treated as an estimate for planning, comparison, or education rather than professional advice.

Calculation approach

The calculator applies the standard relationship implied by the inputs, then formats the answer so it can be checked and reused. For finance tools, the most important step is using consistent units, rates, time periods, and assumptions before comparing the result with another calculator or outside quote.

Example workflow

For example, start with a realistic value you already know, change one input at a time, and watch how the answer moves. That makes it easier to tell whether the result is being driven by the main amount, the rate, the time period, or a unit conversion.

Practical checks

Use current, real-world numbers when the result affects money, health, tax, or legal decisions.
Run a low, base, and high case when the inputs are estimates.
Check the related calculators below when the next decision depends on a different assumption.

How to interpret the dscr stress test result

Best use

Use the result as a planning number for comparing payments, rates, returns, tax reserves, or cash-flow choices before you request a quote or make a commitment.

Cross-check

Compare the answer with the contract, lender estimate, tax form, brokerage statement, payroll record, or invoice that will control the real-world outcome.

Watch for

Do not rely on a single optimistic rate, return, or fee assumption. Money pages work best when you run low, base, and high cases and keep professional advice separate from the estimate.

This page belongs to the Finance calculator library, so the answer should be read in the context of the decision you are modeling rather than as a universal rule.

Before relying on this dscr stress test estimate

Most calculator mistakes come from the inputs, not the arithmetic. Use this short audit before you reuse the answer in a spreadsheet, quote, application, or important conversation.

Confirm source numbers

Match balances, rates, fees, taxes, income, and payment dates against the lender quote, payroll record, tax form, statement, invoice, or contract.

Separate cash flow from total cost

A lower monthly payment can still cost more over time if fees, interest, taxes, or a longer term are hidden in the structure.

Run conservative cases

Test at least one higher-cost or lower-return case before using the output for a purchase, refinance, investment, loan, or tax decision.

Rerun this page when the rate, price, term, fee, tax rule, income, expense, or expected holding period changes.

How to Use

Enter base NOI, current monthly debt service, and the loan's target DSCR.
Enter stress shifts for rate, vacancy, and operating cost.
See DSCR at each scenario and how much NOI cushion exists before covenant breach.

Frequently Asked Questions

What's a DSCR covenant?

A loan covenant requiring your property to maintain a minimum DSCR (typically 1.15-1.25). Breach can trigger 'cash trap' (all rents go to lender reserves) or default (lender can foreclose). Monitor quarterly.

Which stress matters most?

Vacancy usually dominates. A 6% vacancy rising to 12% cuts NOI 6-10% typically — enough to push a 1.25 DSCR to 1.14. Rate rise matters less if you're fixed; mostly matters at refinance.

What's a healthy DSCR buffer?

1.35+ at origination gives 10-15% buffer over typical covenant. 1.45+ gives cushion for a full vacancy cycle. Lenders won't lend above your target DSCR to maximize buffer — you have to underwrite conservatively on rent and operating expense.

How do lenders verify?

Annual operating statement with rent roll. Most commercial loans require quarterly financial reporting. Some require tenant estoppel certificates. Falsified DSCR = fraud; automated review of trailing 12-month numbers catches misreporting fast.