The first installment of 25 per cent under the Income Declaration Scheme 2016 will have to be paid by November 2016 to be followed by another installment of 25 per cent by March 31, 2017.
The remaining amount, according to a finance ministry statement, will have to be paid to the exchequer by September 30, 2017.
Earlier the tax, surcharge and penalty under the black money disclosure window were required to be paid by November 30 this year.
"During the course of meetings and seminars held in different parts of the country, various stakeholders have expressed concern that the time period available under the Scheme up to November 30, 2016 for making payment of tax, surcharge and penalty is very short, especially where funds in liquid form are not readily available with the declarants.
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In their meetings last month with Finance Minister Arun Jaitley, industry associations, CAs and tax professionals had expressed concerns over the payment schedule under the compliance window.
The Budget for 2016-17 announced a 4-month compliance window, allowing domestic black money holders to declare their unaccounted wealth, pay a tax and penalty of 45 per cent and escape prosecution and harsher punishment.
The window under the IDS 2016 opened on June 1 and will close on September 30. Tax and penalty on income declared, as per the original scheme, is to be paid by November.
The Central Board of Direct Taxes (CBDT) has already issued four sets of clarifications on the scheme in form of frequently asked questions (FAQs).