Doubt: I have 100 shares of X. 50 bought initially are over 1 year old so selling them would qualify ass LTCG and 0% tax. 50 shares were bought 6 months prior to average - so is it possible to sell only the previous holding. Does any trading interface differentiate between these holdings?
You’re speaking of First-In-First-Out Accounting. That is a perfectly appropriate method to account for your delivery trades. When you sell 50 shares out of the 100 you currently hold, it is considered that your initial 50 shares have been sold. Hope this helps. Cheers.