The top 3 factors that affect the DSCR rate include the actual Debt Service Coverage Ratio (DSCR), Loan-to-Value, and your FICO (credit score).
The higher the DSCR is on a property, the lender is able to forecast a lower risk for lending the capital since the property may be positively cash-flowing and the investor is able to pay the monthly loan payments. Loan-to-Value, or LTV, refers to the loan amount as it relates to the actual value of the property.
Typically, DSCR loans will never exceed 80% LTV. That means that the borrower needs to bring about 20% +closing costs as a down payment for the loan. The lower the LTV, the less risk for the lender, hence a better rate.
Finally, your credit score is still a factor when determining the rate. Lenders use the score and it affects the final rate for your DSCR loan.
