TDSR(Total debt service ratio)=(payment of principal and interest on mortgage+property tax +heating costs+50% of condominium fees+payments on other personal loan)/grss income. TDSR guidelines Currently range/ j* g4 B! a: c: |: F. P# C$ P1 _
from 35% to 42% of gross income.% F0 |/ [4 S8 ^+ s/ h$ V
GDSR(gross debt service ratio)=(payment of principal and interest on mortgage+property taxes+heating costs+50% of condominium fees)/gross income.