Setindiabiz10
GSTR-1, detailing outward supplies, is a key GST return for most Indian businesses, filed monthly (typically for > ₹5 crore turnover) or quarterly (for ≤ ₹5 crore turnover). Timely and accurate filing with documents like invoices is crucial, as delays incur penalties like late fees and ITC blockage. Monthly due date is the 11th of the next month, and quarterly is the 13th after the quarter💼.