How Is DSCR Calculated?
DSCR is generally calculated by dividing a property’s qualifying monthly rental income by its monthly housing expense — often principal, interest, taxes, insurance, and any HOA dues (PITIA). For example, $3,200 in rent divided by a $2,480 monthly expense is approximately a 1.29x DSCR. Exact calculation methods vary by program and investor.
Key Takeaways
- A common formula is qualifying rental income ÷ monthly housing expense (PITIA).
- PITIA often means principal, interest, taxes, insurance, and HOA dues.
- A result above 1.00x means income exceeds the applicable expense under the calculation.
- Exact methods and inputs vary by lender and program.
The DSCR Formula
A widely used version of the ratio divides the property’s qualifying monthly rental income by its monthly housing expense. The housing expense is often summarized as PITIA: principal, interest, taxes, insurance, and any homeowners association (HOA) dues.
Different programs may define qualifying income and the expense denominator differently. Some use gross rent, some use market rent from an appraisal, and some make adjustments. Always treat a self-calculated DSCR as an estimate.
DSCR Interpretation
The table below shows how DSCR results are generally interpreted.
| DSCR | General Interpretation |
|---|---|
| Below 1.00x | Rental income is below the applicable housing expense under the calculation. |
| 1.00x | Rental income approximately equals the applicable housing expense. |
| Above 1.00x | Rental income exceeds the applicable housing expense. |
Why Your Underwriting DSCR May Differ
A DSCR you calculate yourself may differ from the figure a lender uses. Underwriting may apply a specific rent source, vacancy assumptions, or expense definitions that change the result. Use estimates to understand a scenario, and confirm the qualifying figure through the loan process.
Simple DSCR Calculation
- Monthly Rent
- $3,200
- Principal & Interest
- $1,850
- Taxes + Insurance + HOA
- $630
- Monthly PITIA
- $2,480
- Estimated DSCR
- 1.29x
This hypothetical property generates approximately 1.29 times the monthly housing expense under this simplified calculation. Actual lender calculations may differ.
Figures are illustrative only, do not represent an offer or approval, and are not specific loan terms. Actual calculations, eligibility, and terms vary by program, property, and investor guidelines.
Frequently Asked Questions
- What does PITIA stand for?
- PITIA generally stands for principal, interest, taxes, insurance, and association (HOA) dues — the components often used to represent a property’s monthly housing expense.
- Is DSCR based on gross or net rent?
- It depends on the program. Some programs use gross rent while others make adjustments. The qualifying method is defined by the lender and investor.
Have a specific property in mind?
Run your scenario or talk through the details with our team.
Related Resources
This article is for general educational purposes only and is not financial, legal, tax, or lending advice, a commitment to lend, or an offer to enter into a rate-lock agreement. All loans are business-purpose investor loans subject to underwriting, property review, investor guidelines, and applicable law. Program availability and terms vary by state and transaction. Simple DSCR is an assumed business name of WooHoo Mortgage LLC, NMLS #2347993.