7th of every monthTDS / TCS deposit for the preceding month, where applicableTax desk
11th of every monthGSTR-1 filing for monthly filersGST desk
13th of every monthInvoice furnishing / IFF and QRMP checks, where applicableGST desk
15th of every monthPF / ESI and payroll compliance review, where applicableCompliance desk
20th of every monthGSTR-3B filing for monthly filersGST desk
15 June / Sept / Dec / MarAdvance tax instalments, where applicableTax desk
30 SeptemberIncome-tax audit report deadline, subject to notificationsAssurance desk
31 OctoberIncome-tax return deadline for audit cases, subject to notificationsTax desk