Debt Credit Ratio Calculator

Total monthly debt payments (currency/month)Every recurring debt obligation, including the housing payment.

Gross monthly income (currency/month)Income before tax and deductions.

Monthly housing payment (currency/month)The housing part of the debt above: mortgage principal and interest (plus escrowed taxes and insurance if you include them).

Monthly property tax (currency/month)Counted in the Canadian GDS and TDS ratios.

Monthly heating cost (currency/month)Counted in the Canadian GDS and TDS ratios.

Monthly condominium fee (currency/month)Half of this is counted in GDS and TDS.

Revolving balance Total balance carried on revolving credit lines.

Total credit limit

Target ratio (percent)The ratio you are aiming at. 43% is the general qualified-mortgage benchmark; 36% is a common conventional guideline.

Headline ratio

Back-end ratio (all debt)

30.00 %

Debt-to-Income Ratio Calculator

Debt-to-income ratio

30.00 %

Income left after debt

700.00 currency/month

Debt payment at the target ratio

430.00 currency/month

Room left before the target

130.00 currency/month

Worked out from Consumer Financial Protection Bureau - What is a debt-to-income ratio? and 2 other sources.

Aggregate arithmetic only: which obligations count, underwriting thresholds, taxes and lending advice are outside this calculation.

Ratio arithmetic on the figures you enter. Which obligations count, how income is documented and what threshold applies are lender and programme decisions - only your lender can tell you whether you qualify.

How this is worked out

2 steps

Back-end DTI = 100 x 300 / 1000 = 30%
At a 43% target the ceiling is 430 per month.

Results are general information, not financial, tax, legal, medical or engineering advice.