The debt‑to‑income (DTI) ratio measures how much of your gross monthly income goes toward debt payments, including a projected mortgage. Lenders use DTI to gauge whether you can comfortably afford a loan; a lower ratio suggests less risk of missed payments.
Conventional loan DTI limits
For most conventional mortgages, the standard limits are:
- Front‑end (housing) DTI: 28% of gross monthly income.
- Back‑end (total) DTI: 36% of gross monthly income.
Many lenders in Washington will consider borrowers with a back‑end DTI as high as 43% or even 50% when other factors—such as an excellent credit score, a sizable down payment, or significant cash reserves—offset the higher debt load.
How DTI is calculated
Calculate DTI by adding all monthly debt obligations (mortgage principal, interest, taxes, insurance, car loans, credit‑card minimums, student loans, etc.) and dividing that sum by your gross monthly income. The result is expressed as a percentage.
Washington‑specific considerations
- Washington has no state income tax, which means your gross income used in the DTI calculation is not reduced by state tax withholdings.
- The Washington State Housing Finance Commission offers down‑payment assistance programs for first‑time buyers; such assistance is typically treated as a gift and does not increase your debt load, potentially improving your DTI.
- Most closings in Washington are handled by title companies rather than attorneys, but this procedural detail does not affect DTI calculations.
Meeting the standard DTI thresholds improves your chances of loan approval, but lenders will also look at credit history, employment stability, and cash reserves.
This article provides general information and does not constitute personalized financial advice.