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 f$ f* j0 T& ]; k9 `1 Cfrom 35% to 42% of gross income.1 S& X5 z; L0 e, [1 G% u% n3 Q
GDSR(gross debt service ratio)=(payment of principal and interest on mortgage+property taxes+heating costs+50% of condominium fees)/gross income.