Send my situationA short note is enoughStart my application
New BuyersFind My Loan quizHome buying guideFirst time buyer benefitsPrequalification vs preapprovalFHA loansVA loansUSDA loansHomeReady and Home PossibleFlorida down payment helpTrue cost of a mortgageCash to closeFlorida homestead exemptionFHA readiness quizConventional or FHA quiz
InvestorsInvestor loans overviewDSCR loansVacation rental loansConventional investment loansHow to calculate DSCRAll calculatorsRental property calculatorDSCR calculatorAirbnb break even calculatorRunning the numbers on a rentalDSCR and alternative financingReal estate investing guidesConstruction loansSelf employed borrowersNon QM loans
Loan ProgramsAll loan programsConventional loansFHA loansVA loansUSDA loansJumbo loansVA vs FHA vs USDAFHA vs conventionalMortgage insurance and feesGift fundsBank statement and alternative incomeVA funding feeVA IRRRL refinanceVA loan denied?Refinance and HELOCCash out refinance requirements
FloridaFlorida guidesCentral Florida marketsFlorida homesteadFHA loan limits by countyUSDA eligible areasCondo financingHome insurance and inspectionsProperty researchTitle and ownershipVeteran property tax benefitsFlorida short term rental rulesVacation rental loansRental taxes and CDD feesRental insurance requirements
LearnHow underwriting worksAutomated underwritingLender overlaysUnderwriting conditionsQualifying for a mortgageRates and pricingDown payment and cashPreapproval to closingOwning your mortgageHome equityQuestions answeredAll guidesCalculators and toolsAbout DaneContact
About DaneA to Z index
Send my situationStart my application
Running the Numbers on a Rental

Your Rental Qualifies for a DSCR Loan. Does It Actually Make Money?

Separate residential loan coverage from operating profit and calculate the cash a rental actually leaves after expenses.

A rental can pass a lender's coverage test and still need money from your checking account every month.

That is the first separation I would make when reviewing a DSCR deal. Qualification tells us whether the file fits a lending program. Profitability tells us whether owning the property produces a return worth the cash and risk. Those calculations can use different income and expense definitions.

A ratio above 1.00 does not resolve the investment decision until you know what went into the ratio.

Three numbers that should never share one label

Residential investor programs may compare an accepted monthly rental amount with principal, interest, taxes, insurance and association obligations. Some adjust the rental amount or use a different qualifying payment. The selected program's written method controls.

Commercial property analysis commonly compares net operating income with debt service. NOI deducts operating costs, including property taxes and insurance, before principal and interest. That is a different numerator and denominator.

Owner cash flow goes further. It considers actual loan payments and the cash needed for capital replacements, setup costs and other uses that may not sit inside either underwriting formula.

I want these separately labeled on the worksheet. Calling all three cash flow makes a weak property look stronger than it is.

Follow one property through the ledger

Assume a hypothetical vacation rental generates $72,000 annually in lodging receipts after cancellations and refunds. This figure excludes separately collected lodging taxes and cleaning charges that exactly offset an equal cleaning expense. There is no additional vacancy deduction because $72,000 is the assumed revenue actually collected during the year.

For the financing illustration, assume a particular program accepts that amount without another adjustment. Monthly accepted rent is $6,000. Full monthly principal, interest, taxes, insurance and association expense is $4,000. The residential coverage calculation is therefore $6,000 divided by $4,000, or 1.50.

This assumption describes the example only. It is not a claim that every STR lender accepts all collected revenue or uses this payment.

Now open the operating ledger.

Annual cash item ** Hypothetical amount**
Lodging revenue collected $72,000
Management -$14,400
Utilities and internet -$6,000
Repairs and routine maintenance -$3,600
Supplies and replacements treated as current operating costs -$1,800
Platform and payment costs -$2,160
Cash before the full housing payment $44,040
Full annual housing payment -$48,000
Cash result before capital reserve -$3,960
Additional capital replacement reserve -$3,600
Cash available to the owner after that reserve -$7,560

The property has a 1.50 ratio under the assumed residential loan calculation and a $7,560 annual cash deficit after the stated reserve. That is approximately $630 a month the owner must supply.

Every expense here is hypothetical. A real quote or operating history can change the outcome. The lesson is the missing expense categories, not the particular dollar amounts.

Reconcile the commercial calculation too

Split the $4,000 monthly housing payment into $3,000 principal and interest and $1,000 for taxes, insurance and association obligations. Annual principal and interest are $36,000. Annual property operating charges embedded in escrow and association payments are $12,000.

The other operating costs in the table total $27,960. Deducting those costs and $12,000 of property charges from $72,000 produces $32,040 of NOI before the additional capital reserve. Dividing $32,040 by $36,000 of annual debt service gives approximately 0.89.

This commercial comparison shows NOI before the separately stated replacement reserve. Some commercial underwriting conventions include that reserve in NOI. Including the $3,600 reserve here would reduce that numerator to $28,440 and coverage to 0.79. Keep the convention visible rather than treating different ratios as contradictory.

The building did not change. The definitions changed. Neither calculation should be relabeled to imply that it answers the other's question.

Do not subtract the full $48,000 housing payment inside NOI and then subtract the $36,000 loan payment again. That would count principal and interest twice. Do not omit property taxes and insurance merely because a servicer collects them through escrow.

A reserve is cash you may need before the bill arrives

The $3,600 capital reserve in the example is an ownership planning assumption. It is not a universal lender requirement and it is not automatically a current tax deduction.

A roof, air conditioner, pool system or furnishing package can require cash in a year when the income statement otherwise looks fine. Setting money aside smooths the planning; it does not make the underlying replacement free.

The initial furnishing budget is a separate acquisition cash use. Recurring replacement allowances should reflect what will wear out after launch. Counting the same purchase in both categories for the same period overstates costs, while omitting replacement entirely overstates the return.

This is why I would review the cash needed to launch the rental alongside its operating performance. A profitable year three does not fund an empty bank account in month two.

Self management changes who does the work

Removing the illustrated $14,400 management charge would improve the immediate cash result substantially. It also transfers work to the owner. Guest communication, pricing, cleaner coordination, complaints and emergencies still need someone responsible.

I would run a self managed case and a paid management case rather than quietly deleting the expense. If the purchase only works when your time costs nothing and you are always available, that is a material condition of the investment.

Similarly, a property manager's quote may exclude marketing, maintenance coordination or other charges. Use the agreement's actual fee base and exclusions before assuming the advertised percentage is the full cost.

Test the gap you are actually exposed to

A useful downside case changes the assumptions that could plausibly disappoint: booked nights, nightly rate, annual insurance, association charges or repair expense. Keep the comparison consistent. If you reduce actual collected revenue, do not add another arbitrary vacancy deduction covering the same lost bookings.

For this example, another $6,000 of lost lodging revenue would not merely reduce a comfortable profit. With costs unchanged, it would deepen the deficit from $7,560 to $13,560. Some variable expenses may fall, so the actual revised ledger should show those adjustments explicitly.

A lender's permitted ratio is a financing gate. My investment decision also needs a complete expense ledger, enough cash for an uneven year, and a return that justifies the work. When those disagree, I would fix the deal before celebrating the approval.

Sources

  1. AD Mortgage Non QM Loan Eligibility Guidelines, September 24 2026, section 6.6.13. Open source
  2. IRS Publication 527, Residential Rental Property. Open source
  3. OCC Commercial Real Estate Lending handbook, glossary NOI definition, reviewed October 16 2026. Open source

Talk it through with Dane.

You do not need to be ready to apply. Send the property, the question or the plan, and I will tell you what I see.