Government has warned those caught with illicit wealth within the country would have to cough up 90% in tax and penalty and also face up to 7 years in jail if they fail to declare it during the four-month compliance window.
The window, announced by Finance Minister Arun Jaitley in his Budget 2016-17, will begin on June 1 and provides an opportunity to avoid prosecution with payment of 30% tax and 15% penalty.
Read more from our special coverage on "BLACK MONEY"
After the end of the window, the penalty will increase to 60% while 30% tax will also have to be paid -- thus doubling the total payout to 90% from 45%.
Revenue Secretary Hasmukh Adhia said the government's crackdown has led to over Rs 20,000 crore of domestic black money being unearthed in the last two years and if the tax department has information about any a black money holder, he will be debarred from availing of the window.
"If you do not declare (under the compliance window) and you are caught, then you will be charged 200% penalty (on base tax rate of 30%). Which means it becomes 90% (30% tax plus 60% penalty) and be prosecuted under the Income Tax Act," Adhia said.
"If we know your undisclosed income by any means, somebody has already informed us about it, and we have made a raid, in response to that information, we have given you an assessment notice, then also they cannot make disclosure under the compliance window," Adhia clarified.
The compliance window is proposed to be open from June 1 to September 30, 2016 and the payment can be made within two months of declaration.