What if you don't have purchase invoices for your collection?

Why cost of acquisition matters

The taxable gain on a note sale is the selling price minus the cost of acquisition. Without evidence of the acquisition cost, the Income Tax Department may take the position that the cost is face value — making the selling price mostly taxable. For a note sold for ₹10,000, the difference between a documented acquisition cost of ₹3,000 and a zero acquisition cost is ₹3,000 of additional taxable income. For a large collection with high-value items, this difference can be substantial.

The cost of acquisition includes the purchase price plus any directly attributable costs — grading costs, transportation for acquisition, commission paid to an intermediary. It does not include general overhead or costs that are not specifically attributable to the note in question.

Alternative documentation the Income Tax Act permits

The Income Tax Act does not require GST invoices or formal receipts as the only acceptable evidence of acquisition cost. Courts and tribunals have accepted a range of alternative documentation: bank statements showing a payment on the acquisition date, WhatsApp messages referencing the transaction amount, handwritten receipts from private sellers, exchange correspondence establishing price, contemporaneous entries in a collection catalogue, and testimony from the seller.

A collector who maintains a detailed catalogue — recording acquisition date, source, price paid, and the notes' characteristics — has a defensible position even without formal invoices. The catalogue, especially if maintained consistently and over a long period, provides circumstantial evidence of when and at what price notes were acquired. Digital catalogues with file creation dates provide timestamped evidence that the records were not created retrospectively.

The cost inflation index — a partial solution for older holdings

For notes acquired before the tax authority's records and held for more than 24 months, the government's Cost Inflation Index (CII) provides an alternative mechanism. Even without precise acquisition cost records, if the collector can establish the approximate year of acquisition, the CII adjustment reduces the effective taxable gain by inflating the historical cost figure. The indexed cost of acquisition is used in calculating long-term capital gains, reducing the gain compared to using the original nominal cost.

If no acquisition cost can be established at all, Section 55(2) of the Income Tax Act provides for the fair market value of the asset as of certain reference dates to be used as the cost of acquisition for assets acquired before those dates. This provision may assist collectors of very old notes whose original acquisition cost is entirely undocumentable.

The practical solution — prospective documentation

The absence of historical invoices cannot be remedied retroactively in most cases. What a collector can do is build documentation prospectively — from this point forward, create a record of every acquisition, however informal the purchase. A simple spreadsheet noting the date, source, price, and description of every note acquired — maintained consistently — becomes valuable documentation over time. The discipline of documentation is more important than the format.

You cannot document the past. You can always document the present. The notes you buy today are the records you will need in ten years. Start the catalogue now.

Laws & authorities referenced in this chapter

Income Tax Act 1961 — §48 (computation of capital gains; deduction of cost of acquisition)

Income Tax Act 1961 — §55(2) (fair market value as cost where acquisition cost is undeterminable)

Income Tax Act 1961 — §48(ii) (Cost Inflation Index for indexed cost of acquisition)