Qualifying 2. Debt Service Ratio (TDS and GDS)

The second important criteria when qualifying for a loan is “debt service” ratio. There are two ratios being considered: gross debt service (GDS) and total debt service (TDS).


Total Debt Service (TDS): Mortgage Payment + Other debt payments + Heat + (1/2 condo fee + leasehold monthly costs if applicable)

The first affordability rule is that your total monthly debt cannot exceed 40% of your monthly income. This includes housing costs and other debts, such as car loans and credit card payments. Lenders add up these debts to determine what percentage they are of your gross household monthly income. This figure is your Total Debt Service (TDS) ratio.

For credit score lower than 680, it must be 40% or less; for score >680, it must be 44% or less.

Gross Debt Service (GDS): Mortgage Payment + Heat + (1/2 condo fee + leasehold costs if applicable)

The second affordability rule is that your monthly housing costs shouldn’t be more than 32% of your gross household monthly income. Housing costs include monthly mortgage principal and interest, taxes and heating expenses — known as P.I.T.H. for short. Lenders add up these housing costs to determine your Gross Debt Service (GDS) ratio.

For credit score lower than 680, it must be 32% or less.

5 Responses

  1. [...] It clearly states the credit score needed for specific loan to value (LTV). It also states the TDS and GDS requirements. Click here to download. Possibly related posts: (automatically generated)Self Employed Mortgage [...]

  2. [...] obvious and the most straight forward one. If your can debt service the mortgage payment (see qualifying article), you can get a high ratio mortgage up to 100%, and pay insurance premium 3.10%, so it will be [...]

  3. [...] strategy is if you are someone who has high debt service ratio and is just close to being qualified, this 3% money can be used to pay off your existing debt and [...]

  4. [...] As long as the applicant has credit score of 640 or higher, with minimum 3 tradelines and 1 with 36 months history, he/she can qualify for the 100% financing or 100% refiannce if he/she can debt service. [...]

  5. [...] CMHC – Self-Employment (BFS) Policy Change Posted on April 7, 2009 by 1dayapproval CMHC will no longer accept  applicants under their Self Employed program who own and incorporate a company.   Will still however do “sole proprietor”  under  that program.   If applicant is incorporated they will now have to fully qualify. [...]

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