Exchange as transfer

Converting preference shares into equity shares of the same company fits the ordinary definition of an exchange: one kind of ownership is swapped for another, and neither side is money. By the general rule, that would make it a taxable transfer.

But the Income Tax Act carves out a specific exception. Section 47(xb) says this particular conversion is not treated as a transfer at all. No capital gains tax arises on the conversion itself.

The tax bill does not disappear — it is simply postponed to whenever the resulting equity shares are eventually sold.

The general rule, from Section 2(47): converting one asset into another counts as an exchange, and an exchange is a transfer, so capital gains tax should apply.

The exception, Section 47(xb): conversion of preference shares of a company into equity shares of that same company is specifically excluded from the meaning of transfer. So the conversion moment itself triggers no capital gain.

What carries forward to the eventual sale:

• Cost of acquisition of the new equity shares = the cost of acquisition of the original preference shares (not their fair market value on the date of conversion).
• Period of holding of the equity shares is reckoned from the date the preference shares were originally acquired, not from the date of conversion.

The effect is that the tax the conversion would otherwise have triggered is deferred, in full, until the equity shares are actually sold — at which point both the gain and its long-term or short-term character are measured over the whole period, preference-share ownership included.

Mr Iyer buys 20,000 preference shares of ABC Ltd on 1 January 2010 at Rs 10 each (Rs 2,00,000 total). On 1 January 2023, they convert into equity shares at a ratio of 2 preference shares for 1 equity share, giving him 10,000 equity shares. The fair market value of the equity shares on the conversion date is Rs 25 each, but this figure plays no role in the tax computation.

He sells all 10,000 equity shares on 25 August 2024 at Rs 35 each, paying STT.

Conversion (1 Jan 2023):     No transfer under Section 47(xb) - no capital gain here

Sale (25 Aug 2024):
  Period of holding: 1 Jan 2010 to 24 Aug 2024 = over 14 years -> long-term
  Full value of consideration = 10,000 x 35     = Rs 3,50,000
  Cost of acquisition (of the preference shares) = Rs 2,00,000
  Long-term capital gain                         = Rs 1,50,000
  Taxable above Rs 1,25,000 exemption, at 12.5% under Section 112A

Had the fair market value of Rs 25 on the conversion date been used as the cost instead, the gain would have been understated at Rs 1,00,000 rather than the correct Rs 1,50,000 — exactly the mistake this rule is designed to prevent.

Chapter 13 (Tax provisions for Special Cases), section 13.7, "Taxation in case of conversion of Preference Shares into Equity Shares," works through this Section 47(xb) exclusion with the worked example reproduced above. Expect a question that gives the fair market value on the conversion date as a distractor, testing whether you correctly ignore it and instead carry forward the original preference-share cost and acquisition date.

• The fair market value on the date of conversion is irrelevant to the cost of acquisition — using it instead of the original preference-share cost is the most common error.
• The holding period runs from the original preference-share purchase date, not the conversion date — this can turn what looks like a recent acquisition into a long-term asset.
• The exclusion applies only to conversion into equity of the same company — converting into equity of a different company would not fall under Section 47(xb).
• No transfer at conversion does not mean no tax ever — it means the tax is deferred to the eventual sale of the equity shares, computed over the combined holding period.