2026 South Asia Tax Calendar
Key dates for tax filings and compliance deadlines in South Asian markets including India, Pakistan, Bangladesh, and Sri Lanka in 2026.
January 2026
India GST monthly return (GSTR-1) deadline
Monthly GST outward supplies return filing deadline for Indian businesses.
Pakistan monthly sales tax return deadline
Monthly sales tax return filing deadline for registered businesses in Pakistan.
February 2026
India TDS quarterly return (Q3) deadline
Quarterly TDS return filing deadline for October-December 2025 in India.
March 2026
India advance tax fourth installment
Fourth and final installment of advance tax payment for FY 2025-26 in India.
April 2026
Bangladesh income tax return deadline
Annual income tax return filing deadline for individuals in Bangladesh.
June 2026
India income tax return filing begins
Online filing portal opens for income tax returns for FY 2025-26 in India.
July 2026
India income tax return deadline (non-audit)
Deadline for filing income tax returns for individuals and entities not requiring audit.
August 2026
Sri Lanka corporate tax return deadline
Annual corporate income tax return filing deadline in Sri Lanka.
September 2026
India income tax return deadline (audit cases)
Deadline for filing income tax returns for entities requiring tax audit in India.
October 2026
India GST annual return (GSTR-9) deadline
Annual GST return filing deadline for FY 2025-26 in India.
December 2026
India GST reconciliation deadline
Deadline for GST reconciliation and amendment of returns for FY 2025-26.