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 range5 b' z8 k9 P8 \1 m4 |8 H; n
from 35% to 42% of gross income. ) N; S# c+ Q) X. K" d& \% R* ^GDSR(gross debt service ratio)=(payment of principal and interest on mortgage+property taxes+heating costs+50% of condominium fees)/gross income.