Closing an open trading position by executing an opposite transaction — selling if long or buying if short — to realise the profit or loss.
Squaring off means closing an open trading Position by executing the reverse trade. If you have a long position (bought shares), you square off by selling the same quantity. If you have a Short Position (sold shares or futures), you square off by buying back. The difference between your entry and exit price, multiplied by quantity, is your realised profit or loss.
In Indian markets, squaring off is particularly important for intraday traders. All intraday positions on NSE/BSE must be squared off before 3:15-3:20 PM (cutoff times vary by broker). Positions not squared off by the trader are automatically closed by the broker's Risk Management System (RMS) at the prevailing market price — a forced square-off that may result in unfavourable execution, especially in fast-moving markets.
For futures positions, squaring off before the monthly or weekly expiry avoids physical delivery obligations. SEBI's physical settlement mandate for stock futures means that if you hold a stock futures position to expiry, you must give or take delivery of the underlying shares. This requires full margin (not just futures margin), making pre-expiry square-off the practical choice for most traders.
The timing of square-off can significantly impact outcomes. Many Indian traders experience the "3:15 effect" — a rush of auto-square-off orders from multiple brokers hitting the market simultaneously near the end of the day, causing sudden price movements. Savvy traders either square off their positions well before this window or factor the potential impact into their trading plan.
Understanding the tax implications of squaring off is also important. Intraday square-offs (opening and closing within the same session) are classified as speculative income under Indian tax law and are taxed at your slab rate. Delivery-based trades (where the position is held overnight or longer) qualify for capital gains treatment — STCG at 20% for holdings under 12 months and LTCG at 12.5% for longer holdings.
India Context
Intraday positions must be squared off by 3:15-3:20 PM. Brokers auto-square-off if not done manually. Physical delivery applies to stock futures held to expiry. Intraday P&L taxed as speculative income.