March 2027 Tax & Compliance Due Dates: Year-End Tax Planning & Final Advance Tax
- shubhamtulsian05
- Jun 14
- 2 min read
March 2027 compliance calendar for Indian businesses and individuals — every GST, TDS, advance tax, and income tax deadline in one place. Bookmark this and share it with your finance team at the start of the month.
📅 All March 2027 Compliance Deadlines
7th March 2027 — TDS/TCS deposit: Deposit TDS deducted in February 2027.
11th March 2027 — GSTR-1 (Monthly filers): File outward supply return for February 2027.
13th March 2027 — GSTR-1 IFF (QRMP): Optional IFF for QRMP taxpayers for February 2027 invoices.
15th March 2027 — Final Advance Tax Instalment (Q4): 100% of advance tax for FY 2026-27 must be paid by 15th March. This is the most important advance tax deadline — shortfall after this date attracts interest under Section 234B for the entire year.
15th March 2027 — Presumptive Taxation Advance Tax: Taxpayers under Section 44AD or 44ADA who opted for presumptive taxation must pay their entire advance tax liability in a single instalment by 15th March.
20th March 2027 — GSTR-3B (Monthly filers): Summary return and GST payment for February 2027.
22nd March 2027 — GSTR-3B (QRMP — Category I): QRMP taxpayers in Category I states including Gujarat.
24th March 2027 — GSTR-3B (QRMP — Category II): QRMP taxpayers in Category II states.
31st March 2027 — Last day of FY 2026-27 — TAX PLANNING DEADLINE: Final day to make tax-saving investments under Section 80C (ELSS, PPF, LIC, NSC), 80D (health insurance), 80G (donations), NPS contribution under 80CCD(1B), and all other deductions for FY 2026-27. Any investment made after this date counts for next year.
31st March 2027 — Updated Return (ITR-U): Last date to file Updated Return (ITR-U) for AY 2024-25 (FY 2023-24) — 2 years from end of relevant assessment year.
Don't Miss These Deadlines — Consequences
GST late fee: ₹200 per day per return, plus 18% interest on unpaid tax.
TDS interest: 1% per month for late deduction; 1.5% per month for late deposit.
Advance tax: Interest under Sections 234B and 234C — 1% per month on shortfall.
How PGT & Associates Can Help
PGT & Associates handles complete monthly compliance for businesses across India — GST returns, TDS, advance tax, and all statutory filings. Contact us at +91-87994-99189.
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