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/ U) T) @1 ` B/ x3 ]4 x5 r5 \
from 35% to 42% of gross income. / }* b! Q. P v+ n+ w4 o8 G; cGDSR(gross debt service ratio)=(payment of principal and interest on mortgage+property taxes+heating costs+50% of condominium fees)/gross income.