A forgotten overseas bank account, ESOPs (employee stock option plans), a property inherited overseas, or even a foreign asset acquired from fully explained and taxed funds but inadvertently missed in Schedule FA (foreign assets) of the income tax return (ITR), can leave a taxpayer with a surprisingly complicated compliance problem years later. What may begin as a careless disclosure omission can eventually become a significant cause of concern entailing hefty tax, penalty and prosecution risk.Therefore, for many taxpayers, the issue may not be black money at all, but simply an old disclosure mistake that has become increasingly difficult to ignore. For them, the Foreign Assets of Small Taxpayers Disclosure Scheme, 2026 (FAST-DS) offers a rare opportunity to put such mistakes to rest. Effective 16 August 2026, this one-time amnesty scheme provides for a time-bound resolution to regularise specified foreign asset and foreign income cognisance and disclosure lapses. The application window of the scheme, closes on 31 December 2026, while 31 March 2026 is the crucial valuation date.The economics of coming cleanThe true appeal of FAST-DS lies not merely in the opportunity to come clean: it lies in the economics of doing so. Under the Black Money Act, undisclosed foreign income can attract 30% tax plus a penalty of 300% of the tax, effectively taking the combined tax and penalty burden to 120% of the undisclosed income, besides applicable interest and possible prosecution.In contrast, FAST-DS, for such eligible cases, requires 30% tax plus 30% penalty, effectively 60%. It also offers immunity from further tax and penalty and from prosecution in respect of the declared income or asset: e.g. on Rs.1 crore of eligible undisclosed foreign income or assets, FAST-DS liability would be Rs.60 lakh. The comparable tax and penalty exposure under the Black Money Act framework could reach Rs.1.2 crore, before interest and other consequences.Two eligibility bucketsThe scheme broadly addresses two situations: