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 range3 r# Z5 ]$ K1 B4 P5 Q
from 35% to 42% of gross income. 3 }6 n: l' J+ u$ {0 rGDSR(gross debt service ratio)=(payment of principal and interest on mortgage+property taxes+heating costs+50% of condominium fees)/gross income.