To calculate DSCR, divide the property’s monthly rent by its full monthly payment — principal and interest, property taxes, insurance, and any HOA dues. For example, $1,600 of rent against a $1,300 total payment gives a DSCR of about 1.23. A result above 1.0 means the rent more than covers the payment.
The formula in one line
DSCR equals monthly rent divided by monthly PITIA: principal, interest, taxes, insurance and association dues. You can do the math monthly or yearly as long as you use the same time period on both sides. Most investors find monthly numbers easier because that is how rent and payments actually arrive.
Step 1: Find the monthly rent
Start with what the property can realistically rent for. If there is already a tenant, the current lease is your starting point. If it is vacant, rely on an estimate of market rent — what similar homes nearby are renting for right now.
During the loan process, an appraiser usually completes a rent schedule that compares the property with nearby rentals and states a market rent figure. Wholesale lenders often use that number, or the lease amount, based on their rules. For planning, look at comparable listings and be conservative. For our example, we will say the home rents for $1,600 per month.
Step 2: Add up the monthly housing payment
Build the full payment piece by piece, using simple round numbers as a teaching tool. Principal and interest is the loan payment itself; we will assume $1,000 per month rather than guess at pricing. Property taxes are quoted yearly: a $2,400 yearly bill is $200 per month. Insurance is the Oklahoma wild card — a $1,200 yearly landlord policy is $100 per month, and you want the wind/hail deductible in writing. Suppose the neighborhood HOA charges $0 (many Oklahoma single-family homes have none).
- Principal and interest (assumed): $1,000 per month
- Property taxes: $2,400 per year, or $200 per month
- Insurance: $1,200 per year, or $100 per month
- HOA dues: $0 per month
- Total monthly PITIA: $1,000 + $200 + $100 = $1,300
Step 3: Divide rent by the payment
Now divide: $1,600 of rent divided by a $1,300 payment equals about 1.23. In plain English, the rent covers the payment with about $300 a month left over.
That gap is not pure profit. DSCR leaves out repairs, vacancy between tenants, property management and any utilities you pay as the landlord. The ratio is a qualifying tool, not a full picture of cash flow, so budget for those costs separately.
Step 4: Read what the number means
Here is the general way to interpret the result. These are broad descriptions; each wholesale lender program sets its own minimums, so your broker will tell you how a specific number lands with specific programs.
- Above 1.0: the rent more than covers the payment. Higher ratios generally give more program options.
- Exactly 1.0: the rent and payment are equal. The property breaks even on the items in PITIA.
- Below 1.0: the rent does not fully cover the payment. Some programs may still consider it, but options narrow.
Three Oklahoma what-if scenarios
Using the same $1,300 payment, change one number at a time. Scenario A, lower rent: market rent comes in at $1,450 instead of $1,600, giving about 1.12 — still covered, but with less breathing room. Scenario B, rent below the payment: $1,200 of rent against $1,300 is about 0.92, a signal to revisit price, down payment, or the property itself.
Scenario C, insurance shock: if a wind/hail-heavy quote pushes the yearly premium to $2,400 instead of $1,200, the monthly payment rises to $1,400, and $1,600 divided by $1,400 is about 1.14. The same house, the same rent, a materially different ratio — which is exactly why insurance is step one in Oklahoma.
Interest-only payments and the ratio
Some DSCR programs offer an interest-only period. A few calculate the ratio on that lower interest-only payment, while others use the fully amortizing payment, so the same property can show two different ratios. The calculator on this site lets you toggle interest-only to see both. Ask which payment a program uses before you compare offers.
Common mistakes Oklahoma investors make
Most DSCR surprises come from a few easy-to-miss details. Check each of these before you get attached to a property.
- Using the seller’s old tax bill when the sale will trigger a new assessment.
- Pricing insurance as a homeowner policy instead of a landlord policy, or missing the wind/hail deductible.
- Forgetting HOA dues or a special assessment the HOA has already approved.
- Assuming top-of-market rent when the home needs updates to command it.
- Leaving out flood insurance when the property sits in a FEMA flood zone.
Run your numbers with us
Doing this math yourself is a great habit, and it helps you screen properties quickly before making offers. When you find one you like, DSCR Loans Oklahoma can help you firm up the numbers. As a Loan Daddy LLC brand, we arrange and shop financing from wholesale lenders, so we can show you how your ratio fits real program guidelines and what a realistic payment looks like for your scenario.
Frequently asked questions
What counts in the DSCR payment?
Typically principal, interest, property taxes, insurance, and any HOA dues, often abbreviated PITIA. Some programs also include items like flood insurance when it applies.
Does DSCR include repairs and vacancy?
Usually not. DSCR compares rent to the housing payment only. Budget separately for repairs, vacancy, management and utilities so your real cash flow holds up.
Whose rent number is used, mine or the appraiser’s?
Wholesale lenders typically use the lease amount, the appraiser’s market rent estimate, or a combination, based on their program rules. Your estimate is great for screening, but the appraisal usually sets the official figure.
How can I raise my DSCR?
The two levers are higher rent or a lower payment. A larger down payment, a lower purchase price, cheaper insurance or a property without HOA dues can all lower the payment and raise the ratio.