March 31 Survival Guide: 10 Steps for a Notice‑Free FY End

For founders, CFOs, and finance leaders, March 31 is not just the end of the financial year, it is the compliance stress test of your organization. A single mismatch in GST returns, an overlooked advance tax installment, or an unreconciled ledger can trigger expensive tax notices, interest penalties, or audits months later.

In 2025–26, regulatory scrutiny has intensified. With AI-driven tax analytics, GSTN data matching, and faceless tax assessments, authorities now identify discrepancies across filings almost instantly. This means that year-end compliance is no longer a formality, it is risk management.

For high-growth companies and MSMEs, the smartest strategy is to follow a structured year-end compliance checklist that eliminates reporting gaps before the financial year closes.

Below is the 10-step FY 2025-26 Year-End Compliance Checklist designed specifically for founders, CFOs, and finance teams who want a “notice-free” audit cycle.

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Why March 31 Compliance Matters More Than Ever?

Tax authorities now cross-verify multiple data sources simultaneously:

• GST returns vs books of accounts
• Income tax filings vs GST turnover
• TDS filings vs Form 26AS
• E-invoices vs GSTR-1

Even small inconsistencies can trigger automated notices.

For example:

• Interest under Section 234B or 234C applies when advance tax is unpaid or short paid.
• GST authorities flag mismatches between GSTR-1, GSTR-3B, and e-invoice data, which can lead to compliance scrutiny.

In short: March is the final opportunity to correct errors before the system detects them.

The FY 2025-26 Year-End Compliance Checklist (10 Critical Steps)?

1. Review Advance Tax Liability (Sections 234B & 234C)

If the total tax payable for the year exceeds ₹10,000, advance tax must be paid during the financial year.

Failure to do so triggers:

• Section 234B – Interest for non-payment of advance tax
• Section 234C – Interest for delayed installments.

The interest is calculated at 1% per month on unpaid tax until settlement.

Action for CFOs

• Calculate projected profit for FY 2025-26
• Pay any shortfall before March 31
• Review capital gains and other income not covered under TDS

2. Perform GST Input Tax Credit (ITC) Reconciliation

One of the most common triggers of GST notices is ITC mismatch.

Finance teams must reconcile:

• ITC as per books of accounts
• ITC claimed in GSTR-3B
• ITC reflected in GSTR-2B

If excess credit is claimed, it must be reversed immediately.

Example:

If books show ₹5,00,000 ITC but GSTR-2B reflects ₹4,60,000, the difference must be verified with vendors before claiming credit.

3. Reconcile GSTR-1 with GSTR-3B

Your outward supply data must match across returns.

Key checks:

• Turnover in GSTR-1 vs GSTR-3B
• E-invoice data vs GST returns
• E-way bills vs sales records

Mismatch here is a major audit trigger.

4. Verify Vendor Compliance to Protect ITC

Input credit depends on supplier compliance.

If vendors fail to file GSTR-1, their invoices will not appear in your GSTR-2B, making ITC ineligible.

Best practice

• Send vendor reconciliation statements in March
• Ensure major vendors have filed returns

5. Review Expense Ledgers for Missed ITC

Many businesses miss legitimate credits.

Examples include GST on:

• Bank charges
• Professional fees
• Office expenses

Review expense ledgers to claim eligible ITC before the year closes.

6. Check Reverse Charge Mechanism (RCM) Liability

Under GST, certain transactions require tax payment by the recipient instead of the supplier.

Examples:

• Legal services
• Director remuneration
• Import of services

Any unreported RCM liability should be paid using DRC-03 to avoid future penalties.

7. Validate E-Invoice and E-Way Bill Data

With the e-invoice system now widely applicable, every invoice generated through IRP must reconcile with GST filings.

Key reconciliations:

• E-invoice portal vs sales register
• E-way bills vs logistics records

This ensures your turnover matches across tax databases.

8. Review Fixed Asset Register

Before closing books:

• Verify capital asset purchases
• Check GST ITC eligibility
• Validate depreciation calculations

Errors here affect both GST and income tax reporting.

9. Reset Invoice Number Series for FY 2026-27

GST rules require businesses to maintain unique invoice numbering for each financial year.

Before April 1:

• Reset invoice series
• Update accounting software settings
• Train the finance team on the new numbering sequence.

10. Prepare Documentation for the Upcoming Audit

A well-documented audit file can prevent unnecessary notices.

Maintain ready documentation for:

• GST reconciliations
• Vendor confirmations
• Advance tax calculations
• Expense ledger analysis
• Financial statements

This ensures faster response to any future scrutiny.

The Hidden Risk Most CFOs Miss?

Many founders assume compliance risk begins during tax filing season.

In reality, the risk begins on March 31.

If books, GST filings, and tax calculations are inconsistent before year end, the issue will surface later during:

• GST audits
• Income tax scrutiny
• investor due diligence
• funding rounds

This is why sophisticated companies treat year-end compliance like a strategic financial audit.

How Rits Capital Protects Founders from Compliance Risk?

At Rits Capital, we work closely with founders, CFOs, and growing businesses to eliminate compliance gaps before they become costly notices.

Our advisory covers:

• Year-end tax and GST reconciliation
• Fundraising-ready financial structuring
• Investor due diligence preparation
• Capital raise advisory
• IPO readiness

Think of us as the financial safety net that ensures your company stays audit-ready and investor-ready simultaneously.

FAQs:

1. What is the last date to complete FY 2025-26 tax compliance tasks?

Most year-end compliance actions should be completed before March 31, 2026, including reconciliation of GST returns, advance tax payments, and financial statement adjustments.

2. What happens if advance tax is not paid before March 31?

If advance tax is unpaid or underpaid, interest may be levied under Sections 234B and 234C of the Income Tax Act, typically calculated at 1% per month on the unpaid amount.

3. Why is GST ITC reconciliation important at year end?

ITC must match across books, GSTR-3B, and GSTR-2B. Any discrepancy can lead to ITC reversal, penalties, or GST notices.

4. What is the most common reason for GST notices?

The most common triggers include:

• ITC mismatch
• GSTR-1 vs GSTR-3B differences
• Incorrect tax liability reporting
• Missing vendor invoices.

5. How can CFOs reduce tax scrutiny risk?

Maintain consistent data across:

• GST returns
• Income tax filings
• accounting books
• financial statements.

6. What is the role of vendor compliance in GST ITC claims?

If a vendor fails to file their GST returns, the invoice may not appear in GSTR-2B, making ITC unavailable to the buyer.

7. Should businesses review fixed asset registers before year end?

Yes. Asset purchases affect GST ITC eligibility, depreciation, and financial reporting, making year-end verification critical.

8. What is Reverse Charge Mechanism (RCM)?

RCM is a GST provision where the recipient of goods or services must pay GST instead of the supplier.

9. Why should companies reset invoice numbering each financial year?

GST rules require unique invoice numbers for every financial year, helping maintain compliance and traceability.

10. How can professional advisors help avoid tax notices?

Advisors conduct structured reconciliations, tax planning, and compliance reviews, reducing the risk of mismatches that trigger regulatory scrutiny.