March in India isn’t just the last month of the financial year, it’s when every unreconciled invoice, every overdue MSME payment, and every unclaimed deduction either gets fixed or gets lost for good. Here’s a priority-based checklist to close the year strong instead of scrambling through it.
Who Should Read This?
MSMEs, startups, Private Limited Companies, LLPs, sole proprietors, in-house finance teams, accountants, and any business owner preparing for year-end closure.
Immediate: Before 15 March
- Pay the fourth advance tax instalment, due 15 March, completing 100% of your estimated tax liability for the year
- Send payment reminders to overdue receivables — cash collected before 31 March strengthens your closing position
- Check every MSME vendor’s payment status — if any payment is approaching or past the 45-day (or 15-day, without a written agreement) window, this is your single highest-priority action item
Before 31 March
- Clear all outstanding MSME vendor payments. Under Section 43B(h), missing the 45/15-day window doesn’t delay the deduction, it disallows it entirely for this year, pushing it to whenever payment is actually made.
- Finalize Section 80C, 80D, HRA, and home loan interest claims if you’re using the old tax regime — these opportunities close at year-end.
- Reconcile GSTR-2B against your Purchase Register. Once a vendor hasn’t filed their GSTR-1, the window to chase them down for that month’s Input Tax Credit can close within days, not weeks.
- Reconcile GSTR-1 against your Sales Register, confirming every invoice shows as “Included in Return.”
- Complete a full bank reconciliation across all accounts, bringing suspense entries to zero.
- Conduct a physical inventory count around 31 March.
- Compute and book depreciation, along with any outstanding expenses.
Immediately After Year-End
- Deposit March TDS by 30 April.
- Confirm your 31 March closing balance matches your 1 April opening balance in your accounting software — a mismatch here signals an unreconciled entry.
- Start a fresh invoice series for the new financial year (e.g., TR/25-26/001), configuring e-invoicing IRN generation from day one if turnover exceeds ₹5 crore.
- Begin reconciling GSTR-9 while the year’s data is still fresh, even though the filing deadline (31 December of the following year) feels distant.
Ongoing Monthly Practices
- Reconcile GST and TDS every month, not just at year-end
- Collect MSME vendor declarations as new vendors onboard, not retroactively in March
- Clean up old advances and inter-company balances in January-February, before the year-end crunch begins
Year-End Compliance Calendar
| Deadline | Task |
|---|---|
| 15 March | Fourth advance tax instalment due |
| 31 March | MSME vendor payments, GST/GSTR-2B reconciliation, tax-saving investments, bank reconciliation |
| 30 April | March TDS deposit due |
| Ongoing through the year | Monthly GST/TDS reconciliation, MSME declaration collection |
| 31 December (following year) | GSTR-9 annual return due (prep during March recommended) |
Real Examples: What Delay Actually Costs
A business that lets GSTR-2B reconciliation sit untouched until 28 March, only to discover a supplier never filed their GSTR-1, can lose an entire month’s Input Tax Credit with zero time left to fix it — recoverable credit becomes a straight write-off. Similarly, a firm paying an MSME vendor on day 50 instead of day 45 doesn’t just pay a small penalty, it loses the entire expense deduction for that year under Section 43B(h), a cost that can run into tens of thousands of rupees for a single overdue payment.
Documents and Reports to Review
- Bank reconciliation statements for every account
- Purchase register and GSTR-2B
- Sales register and GSTR-1
- MSME vendor confirmations and payment ledgers
- Physical inventory reports
- Fixed asset register and depreciation schedules
- Outstanding expense reports
Common Year-End Mistakes
- Doing everything in the last week of March. Reconciliation issues discovered this late often have no time left to fix.
- Ignoring MSME vendor declarations until year-end. Collecting these as vendors onboard throughout the year avoids a scramble in March.
- Leaving TDS credits unreconciled. Mismatches here surface later as intimation notices or defective return flags.
- Failing to reset invoice numbering for the new year. This creates duplicate invoice risk and complicates audits.
- Postponing compliance until after 31 March. Several of these tasks, particularly GST ITC claims, have hard cutoffs that don’t wait for a more convenient month.
Given how many of these tasks interlock, and how unforgiving the deadlines genuinely are, it’s worth having a CA manage your year-end close rather than handling it internally under time pressure. Tax Vic’s Compliance Management and Ongoing Accounting Support services help businesses close the fiscal year cleanly and start the new one compliant.
Key Takeaways
Closing the fiscal year strong comes down to prioritization: clear MSME payments and finalize tax-saving investments before 31 March, reconcile GST diligently rather than at the last minute, and treat compliance as a continuous monthly discipline rather than a March-only scramble. Businesses that adopt this continuous close approach consistently face a lighter, less error-prone year-end than those who don’t.
Need help with this? If you’d like a CA to help manage your year-end financial close, book a 15 min free consultation with Tax Vic.
Author: CA Reetu Bhandari
Published: 20 February 2025
Last Reviewed: 18 July 2026
