Last Day For Filing In Income Declaration Scheme The government has ruled out any extension Till Now to the September 30 deadline for filing income disclosure under the black money compliance window. Under the IDS, people can disclose their undeclared income and escape prosecution. The scheme, which was launched on June 1 to uncover black money, closes on September 30. Those disclosing assets under the IDS will have to pay 45% tax plus penalty. Also the payments can be made in three instalments till November 2017.