Tax loss harvesting is a valid way to offset capital gains, but the way it is executed matters, especially when multiple trading accounts are involved. While the strategy may look straightforward on trading screens, it can create unexpected reconciliation issues during income tax filing.
A commonly followed approach is to sell a position in Account A and simultaneously buy the same quantity in Account B, then reverse the transaction by selling in Account B and buying back in Account A. These trades are often executed on the same day, sometimes within minutes.
At the broker level, this usually appears compliant. Individual broker P&L statements clearly reflect realised losses, and market exposure is maintained across accounts without interruption.
The complexity emerges at the PAN level.
The Annual Information Statement (AIS) consolidates all equity transactions reported by exchanges and depositories against a single PAN, regardless of how many brokers or accounts are used. When identical buy and sell transactions occur across multiple accounts on the same day, the sequencing in AIS may not align neatly with broker level P&L statements. This often results in apparent mismatches in quantities or values, additional reconciliation work during ITR preparation, and avoidable follow-ups with tax professionals.
One practical way to reduce this risk is to avoid same day counter trades across accounts. Staggering the repurchase to the next trading day in the alternate account can help create clearer transaction trails in AIS and make reconciliation simpler.
The key takeaway is that effective tax loss harvesting is not just about booking losses. It requires consistency across trading execution, broker level P&L reporting, and PAN level AIS data.
What looks clean and correct on individual broker statements can still become complicated at the time of tax filing if AIS reporting is not factored in early.
This is not tax advice, but a process related observation for investors who manage positions across multiple trading accounts.