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How to Calculate DTI Ratio for Mortgage: Step-by-Step Guide

Last updated: April 07, 2025

Understanding DTI Ratio

Your Debt-to-Income (DTI) ratio measures the percentage of your monthly income that goes toward paying debts. It helps lenders evaluate your ability to manage monthly payments and repay loans.

There are two types of DTI ratios:

  • Front-End DTI: Includes housing-related expenses like mortgage payments, property taxes, and insurance.
  • Back-End DTI: Includes all monthly debt obligations, such as credit card payments, car loans, and student loans.