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 ' Y; P7 U( i, M8 K% t& _; Hfrom 35% to 42% of gross income.# s5 k6 k6 a* A" p% r" a- B' E2 U
GDSR(gross debt service ratio)=(payment of principal and interest on mortgage+property taxes+heating costs+50% of condominium fees)/gross income.