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Understanding Debt-to-Income Ratio

How your DTI ratio affects loan approval and what you can do to improve it.

Reviewed by the 365loan Editorial Team · Last updated July 7, 2026

Your debt-to-income ratio (DTI) compares your total monthly debt payments to your gross monthly income. It's one of the key numbers lenders use alongside your credit score to assess whether you can comfortably take on a new payment.

How to Calculate It

Add up all your monthly debt payments (loans, credit cards, car payments) and divide by your gross monthly income, then multiply by 100 for a percentage. There's no single fixed Canadian standard, but a DTI under roughly 36% is a commonly cited general guideline — individual lenders in our network set their own specific thresholds.

Why It Matters for Approval

A high DTI signals to lenders that a large share of your income is already committed, leaving less room for a new payment — this can affect both approval and the loan amount you're offered.

How to Improve Your DTI

  • Pay down existing debt balances before applying
  • Avoid taking on new debt shortly before a loan application
  • Increase your income, even temporarily, if possible

Understanding Debt-to-Income Ratio FAQ

What DTI ratio do lenders look for?

Standards vary by lender, but a DTI below roughly 36% is often viewed favourably as a general guideline, while a very high ratio (above 50%) may limit your approval odds or the loan amount you're offered.

Does my DTI affect my credit score directly?

No — DTI isn't part of your credit score calculation, but lenders check it separately during the approval process as an additional measure of your ability to repay.

Will applying affect my credit score?

Checking your rate uses a soft credit inquiry, which does not affect your credit score. A hard inquiry only occurs if you accept an offer and proceed with a lender.

How fast can I get funded?

Most applicants get a decision within minutes. Once you accept an offer, funds are typically deposited within 24 hours, and some lenders offer same-day funding.

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