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 ! @; ^9 Y Q: \0 N6 G$ O& g- Vfrom 35% to 42% of gross income.8 ]8 ^' o; k6 G: k' D
GDSR(gross debt service ratio)=(payment of principal and interest on mortgage+property taxes+heating costs+50% of condominium fees)/gross income.