Four questions per asset decide whether a foreign asset you never put in Schedule FA falls in Category A — 30% tax plus an amount equal to that tax, about 60% of value — or Category B, a flat fee. On a ₹40 lakh holding that is the difference between about ₹1 lakh and about ₹24 lakh. The portal will not tell you which one you are in; it starts after you have decided.
The Rules do not accept a closing balance or a guess. This is the method for each class — the worksheet above applies it, but the underlying figures are yours to gather.
| Asset class | Prescribed basis at 31 March 2026 | What you will be asked to produce |
|---|---|---|
| Immovable property | Higher of acquisition cost and open-market value on the valuation date | A valuation report from a recognised valuer |
| Quoted shares & securities | Higher of cost and the average of the lowest and highest quoted price on the valuation date | Broker/exchange statement showing the day's high and low |
| Unquoted equity shares | Higher of cost and a formula value computed on the company's underlying assets less liabilities, allocated per share | The company's balance sheet as at the valuation date |
| Other unquoted securities | Higher of cost and prescribed open-market value | A merchant banker's or accountant's report |
| Bank account | Aggregate of qualifying deposits into the account from the date it was opened to the valuation date, with prescribed adjustments — not the closing balance | Full account history from opening. This is usually the hardest document to get and the one people underestimate. |
| Bullion, jewellery, drawings, artistic work | Higher of cost and open-market value on the valuation date | A registered valuer's report |
| Interest in a partnership, AOP or foreign entity | Prescribed allocation of the entity's net assets to your interest | The entity's accounts and the partnership/operating agreement |
FAST-DS is six weeks old. Everything below was read off a published source in August–September 2026, and the two points where professional sources still disagree are flagged on the face of the result rather than resolved silently.