DSCR Loan Calculator for
Rental Properties

Understanding Your DSCR

Your debt service coverage ratio, or DSCR, compares a rental property’s qualifying monthly income with its estimated mortgage payment and required property expenses. DSCR lenders use this ratio to evaluate whether the property’s rental income can support the proposed loan.

Use the DSCR loan calculator to estimate your:

• Debt service coverage ratio
• Estimated loan amount
• Required down payment
• Additional rent needed to reach a 1.00 DSCR
• Purchase or cash-out refinance scenario
• Fully amortizing or interest-only payment
• Loan amount supported at different target DSCR ratios

A DSCR of 1.00 means the property’s qualifying monthly rent equals its calculated monthly expense. A ratio above 1.00 means the rent exceeds the expense, while a ratio below 1.00 means the property does not fully cover the calculated expense.

Calculator results are estimates. Final eligibility, loan amount, down payment, pricing and DSCR will depend on the appraisal, verified rent, property expenses, credit profile, reserves and lender guidelines.

How to Use the DSCR Loan Calculator

Enter the property, rental income and loan details to estimate the DSCR, loan amount, required down payment or potential gross cash out.

Transaction Type

Select Purchase or Cash-Out Refinance. The calculator adjusts the available inputs and results based on the selected transaction.

Purchase Price or Estimated Home Value

For a purchase, enter the expected purchase price. For a cash-out refinance, enter the property’s estimated current value. The lender will generally use the appraised value when determining the final loan amount and loan-to-value ratio.

Estimated Monthly Rent

Enter the property’s current rent or expected market rent. Final qualifying income may be based on the current lease, the appraiser’s market-rent estimate or another lender-approved calculation.

Down Payment

For a purchase, select the percentage you expect to put down. A larger down payment reduces the loan amount and monthly mortgage payment, which may improve the property’s DSCR.

Current Mortgage Balance

For a cash-out refinance, enter the current principal balance. The calculator uses this amount to estimate the property’s existing loan scenario and potential gross cash out.

Property ZIP Code

Enter the property ZIP code to estimate property taxes and homeowners insurance.

Actual Taxes, Insurance and HOA Dues

Enter property-specific expenses when available. Actual figures generally provide a more accurate result than ZIP-code estimates.

Interest Rate

Enter an estimated DSCR loan rate. A higher interest rate increases the monthly payment and generally lowers the calculated DSCR.

Loan Term

Select the expected repayment period. The calculator includes 30-year and 40-year loan term options.

Interest-Only Option

Choose whether to calculate the scenario using an interest-only payment. This may reduce the initial monthly payment and improve the estimated DSCR during the interest-only period.

Understanding Your DSCR Results

The calculator estimates how well the property’s monthly rental income covers the proposed mortgage payment and required property expenses.

Estimated Debt Service Coverage Ratio

DSCR is calculated by dividing qualifying monthly rent by the total monthly property expense.

DSCR = Qualifying Monthly Rent ÷ Monthly Property Expense

For example, a property with $5,000 in qualifying monthly rent and $4,000 in monthly property expenses has a 1.25 DSCR.

$5,000 ÷ $4,000 = 1.25 DSCR

Below 0.75 DSCR

The property’s qualifying rent covers less than 75% of the estimated monthly expense. Most DSCR loan programs will require a lower loan amount, larger down payment, higher rent, or different loan terms.

0.75 to 0.99 DSCR

The property’s rent does not fully cover the calculated payment. Some non-QM lenders may consider these scenarios with stronger credit, additional reserves, lower leverage, or adjusted pricing.

1.00 to 1.24 DSCR

The estimated qualifying rent is sufficient to cover the calculated monthly property expense. Available terms will still depend on the borrower, property, loan size, reserves, and lender guidelines.

1.25 DSCR or Higher

The property has stronger rental coverage and may qualify for a broader range of competitive DSCR loan options.

Estimated Loan Amount

The estimated loan amount is based on the property value, selected down payment, interest rate, loan term, and other entered details.

For a purchase, the calculator subtracts the down payment from the estimated property value. For a refinance or cash-out refinance, the available loan amount may be limited by the appraised value, existing mortgage balance, lender loan-to-value limits, and calculated DSCR.

Required Down Payment

The required down payment shows the estimated cash contribution for the selected purchase scenario.

A larger down payment may:

• Reduce the monthly mortgage payment
• Improve the property’s DSCR
• Lower the loan-to-value ratio
• Expand the available loan options

Additional Rent Needed for a 1.00 DSCR

When the entered scenario produces a DSCR below 1.00, the calculator estimates the additional monthly rent needed for qualifying income to equal the calculated monthly expense.

This result is based on the original property value, selected down payment, estimated loan amount and entered property expenses. It shows the rent needed to preserve the entered loan scenario rather than reducing the loan amount.

DSCR Slider

The slider shows the estimated loan amount and required down payment the current monthly rent may support at different target DSCR ratios.

Moving the slider to a higher DSCR generally reduces the supported loan amount because the same rent must cover a smaller monthly property expense.

Moving the slider to a lower DSCR may increase the supported loan amount, although lender eligibility, loan-to-value limits and program requirements still apply.

The additional-rent result remains based on the original loan scenario entered into the calculator.

Monthly Property Expense

The monthly property expense may include principal, interest, property taxes, insurance, HOA dues, and other entered housing expenses.

These costs make up the denominator in the DSCR calculation.

How Is DSCR Calculated?

Residential DSCR lenders commonly use the following formula:

DSCR = Qualifying Monthly Rent ÷ Monthly PITIA

PITIA generally includes principal, interest, property taxes, insurance, and association dues.

DSCR Calculation Example

Assume an investment property has:

• $4,500 in qualifying monthly rent
• $2,750 in principal and interest
• $700 in monthly property taxes
• $250 in monthly insurance
• $100 in HOA dues

The total monthly property expense is $3,800.

$4,500 ÷ $3,800 = 1.18 DSCR

The property would fall within the calculator’s eligible range.

What Affects Your DSCR?

Monthly Rental Income

Higher qualifying rent improves the DSCR when monthly property expenses remain unchanged. The lender may use the current lease, the appraiser’s market-rent estimate, or another approved source.

Property Value

The property value affects the proposed loan amount and loan-to-value ratio. For a purchase, the lender will generally use the lower of the purchase price or appraised value.

Down Payment

A larger down payment reduces the loan balance and monthly payment, which may improve the property’s DSCR.

Interest Rate

A higher interest rate increases the monthly principal and interest payment and generally lowers the DSCR.

Property Taxes and Insurance

Taxes and insurance can vary significantly by property and location. Flood insurance, wind coverage, landlord insurance, reassessment, and changes in exemptions can materially affect the monthly expense.

HOA Dues

Condominium and homeowners association dues are generally included in the monthly property expense and may reduce the calculated DSCR.

Interest-Only Payments

An interest-only payment may be lower during the initial period, which can improve the estimated DSCR. The payment may increase after the interest-only term ends.

How to Improve Your DSCR

Increase the Down Payment

A larger down payment reduces the loan amount and monthly mortgage payment.

Use Accurate Rental Income

Enter a realistic lease amount or market-rent estimate. Rent that cannot be supported by the lease or appraisal may not be accepted by the lender.

Enter Actual Property Expenses

Use the property’s actual taxes, insurance, and HOA dues when available to produce a more accurate estimate.

Compare Interest-Only Options

An interest-only DSCR loan may improve the initial rental coverage when it aligns with the investor’s financing goals.

Reduce the Requested Cash Out

For a refinance, lowering the requested loan amount may reduce the payment and improve the property’s DSCR.

Reevaluate the Purchase Price

Use the maximum property value at a 1.00 DSCR to identify a price range supported by the expected rent.

Work With an Experienced DSCR Mortgage Broker

DSCR requirements vary by lender. LendFriend Mortgage reviews programs with different minimum ratios, leverage limits, interest-only options, rent calculations, cash-out guidelines, and property requirements to find the right fit for each investment.

DSCR Purchase, Refinance, and Cash-Out Calculations

DSCR Purchase Calculator

For a purchase, the calculator estimates the loan amount and required down payment based on the property value and selected down payment percentage. It then calculates the DSCR using the expected rent and projected monthly property expense.

DSCR Refinance Calculator

For a refinance, enter the current property value, proposed loan amount, rental income, interest rate, loan term, and property expenses.

The result can help determine whether a new loan may replace short-term financing, adjust the loan term, reduce the payment, or improve monthly cash flow.

DSCR Cash-Out Refinance Calculator

For a cash-out refinance, the calculator estimates how the proposed loan amount may affect the property’s DSCR and available equity.

Requesting more cash out generally increases the loan balance and monthly payment, which may reduce the DSCR.

DSCR Calculator Results Are Estimates

This calculator is provided for educational purposes only. It does not represent a loan approval, commitment, guaranteed interest rate, or final DSCR determination.

Actual results may vary based on the appraised property value, approved market rent, lease terms, property expenses, credit profile, loan-to-value ratio, cash reserves, property type, loan amount, interest rate, prepayment terms, and lender guidelines.

LendFriend Mortgage can review the property, expected rent, transaction type, requested loan amount, and investment goals to determine which DSCR loan programs may fit the scenario.