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 , _7 T* S4 [( s! F+ ~3 bfrom 35% to 42% of gross income.; |+ P! ?9 J7 _: t3 ?; Y( l4 R
GDSR(gross debt service ratio)=(payment of principal and interest on mortgage+property taxes+heating costs+50% of condominium fees)/gross income.