September 2015 is the start of the Jubilee which which goes through 2016. Time when debt is put away, the land is restored. Its called the leveling of God.
You are instructing me on Shemitta? I suggest you look at my FR page because my book on the topic long predates Cahn's and he's dead wrong about a number of its critical attributes which are obvious in Scripture (particularly Deuteronomy 31:10-11).
All debts were to have been forgiven at the start of Shemitta, which was eleven months ago. There is no definitive proof that the year to come is a Yoveil, which was more about setting slaves free and reintegrating tribal families with which to preserve the command structure and familial integrity of the national militia than it was about debt.
It might be the Jubilee—are scholars sure?