Taxpayers will be barred from filing GST returns after three years from the due date as per Finance Act 2023 amendment to CGST Act.This restriction will be implemented on the GST portal from July 2025 tax period, requiring taxpayers to file pending returns before July 2025.The move aims to bring certainty to the tax system but may negatively impact taxpayers with pending filings due to various reasons.Another advisory mentions that from July 2025, auto-populated liability in GSTR-3B will become non-editable, allowing amendments through form GSTR 1A.