How to File GSTR-3B for May 2026 Before the June 20 Deadline
GSTR-3B for May 2026 is due 20 June 2026 for monthly filers. This step-by-step guide covers what's now auto-locked from GSTR-1, how to fill Table 4 ITC, how to pay through the cash and credit ledgers, and exactly what a late return costs in interest and late fee.