GST Year-End Checklist for Financial Year 2025-2026: 10 Must-Do Actions

As Financial Year 2025-26 draws to a close, there’s a familiar rush that sets in for most businesses.

GST Year-End Checklist for Financial Year 2025-2026: 10 Must-Do Actions

Accounts teams are closing books. Management is reviewing numbers. And somewhere in the middle of it all, GST compliance quietly becomes the most critical task before 31 March 2026.

If you’ve ever received a GST notice because of a small mismatch or missed reconciliation, you already know year-end GST compliance is not just a routine exercise. It’s your last opportunity to fix errors before they become disputes. Many businesses also consult a tax consultant in Gurgaon during this time to review records and ensure everything is properly aligned.

That’s why a structured GST Checklist for Financial Year 2025-2026 is essential.

Under the CGST Act and broader GST law, compliance does not end with monthly or quarterly return filing. The end of the financial year is when businesses must pause, review, reconcile, and correct. Many businesses also consult a GST consultant in Gurgaon to ensure that reconciliations and corrections are handled properly before the year closes.

This practical and human-focused GST year-end compliance checklist for FY 2025-26 walks you through 10 important GST actions every business must complete before stepping into FY 2026-27.

1. Reconcile GSTR-1, GSTR-3B and Books - Don’t Trust the Portal Blindly

One of the most common mistakes businesses make is assuming that if the data is visible on the GST portal, it must be correct.

It isn’t always.

You must reconcile:

  • Outward supplies reported in GSTR-1
  • Tax paid in GSTR-3B
  • Sales as per books
  • E-invoice data from the Invoice Registration Portal
  • Turnover declared during GST registration

Even small mismatches can snowball into compliance issues later and may affect your GST return filing requirements.

A proper reconciliation ensures:

  • Correct tax liability
  • Consistency in aggregate turnover
  • Accurate GST return filing
  • Clean records in case of departmental scrutiny

Before March 2026 ends, sit with your accounts team and actually verify numbers line by line. It saves months of future stress.

Read more: Skyrocket Your Savings By Learning About Input Tax Credit Under GST

 Reconcile GSTR-1, GSTR-3B and Books - Don’t Trust the Portal Blindly

2. Conduct a Real ITC Health Check

If there’s one area where businesses unknowingly expose themselves, it’s Input Tax Credit (ITC).

Many assume that if ITC is visible in GSTR-2B, it is safe to claim. That’s not always true per GST regulations.

As part of your GST compliance checklist for FY 2025-26, ask:

  • Does ITC in books match GSTR-2B?
  • Has ITC been claimed only where invoice is reflected?
  • Were vendors paid within 180 days?
  • Has blocked credit under GST rules been avoided?
  • Is there any non-payment of GST under RCM?

Incorrect ITC claims can attract interest and penalty, even if the mistake was unintentional.

Before FY 2025–26 draws to a close, review ITC like an auditor would not like an optimist would.

Conduct a Real ITC Health Check

3. Review Reverse Charge Mechanism (RCM) Carefully

Reverse Charge Mechanism under GST is often forgotten until a notice arrives.

Non-payment of GST under RCM is a frequent reason for departmental queries.

Check whether:

  • Legal fees were subject to RCM
  • GTA services required RCM payment
  • Import of services attracted IGST
  • Director remuneration triggered RCM

If GST is payable under reverse charge, it must be paid - you cannot pay GST under forward charge instead.

If there was a reason for non-payment of GST, document it clearly.

RCM mistakes are easy to make and equally easy to prevent with a year-end compliance review.

Review Reverse Charge Mechanism (RCM) Carefully

4. Recalculate Aggregate Turnover - Especially If You’re Growing

Growth is good for business. But it can silently change your GST compliance obligations.

Check whether your aggregate turnover in Financial Year 2025-26:

  • Crossed e-invoicing threshold
  • Affected GST registration in new states
  • Impacted eligibility for the composition scheme
  • Changed eligibility for Quarterly Return Monthly Payment (QRMP)

Many businesses continue under old assumptions and forget that compliance requirements change with turnover.

As FY 2025-26 draws to a close, verify whether your current GST structure still fits your size.

Recommended: Draft a Professional GST Show Cause Notice(SCN) Reply Letter Format in Word

Recalculate Aggregate Turnover - Especially If You’re Growing

5. Review Composition Scheme Position

If you are under the GST Composition Scheme, year-end is the right time to evaluate:

  • Whether you are still eligible
  • Whether aggregate turnover crossed limits
  • Whether any inter-state supply was made
  • Whether quarterly return filing was completed correctly

If you plan on opting to pay GST under regular scheme in April 2026 (FY 2026-27), plan early.

Transition impacts pricing, input tax credit availability, and compliance burden.

Year-end planning prevents confusion in the new financial year.

Review Composition Scheme Position

6. File or Prepare LUT for FY 2026-27

If you export goods or services without payment of IGST, filing the Letter of Undertaking (LUT) is critical.

Before stepping into FY 2026-27:

  • Ensure LUT for FY 2025-26 is properly documented
  • Prepare LUT for FY 2026-27
  • File LUT for FY 2026-27 on the GST portal before April 2026

Failure to renew LUT means IGST may become payable on exports.

It’s a small compliance step but missing it can disrupt cash flows significantly.

File or Prepare LUT for FY 2026-27

7. Clear Outstanding Tax Liability Before 31 March 2026

There is psychological comfort in closing the financial year with zero pending dues.

Before 31 March 2026:

  • Verify no pending GST liability exists
  • Pay GST under forward charge wherever applicable
  • Clear reverse charge dues
  • Pay interest on delayed tax payment
  • Ensure all GST return filing is completed

Even a small unpaid amount can trigger automated compliance issues on the GST portal.

Close the year clean.

Read more: Confused About Which ITR Form NRIs Should File? Here's a Simple Guide

Clear Outstanding Tax Liability Before 31 March 2026

8. Check E-Invoice and IRP Compliance

E-invoicing compliance has become a critical GST requirement.

Verify:

  • All applicable invoices were uploaded to Invoice Registration Portal
  • IRN and QR codes were generated
  • No manual invoices were issued in violation of GST rules
  • Credit notes are properly reported in GST return

Incorrect e-invoicing can impact customers’ ITC claims and damage business relationships.

Year-end GST compliance is also about protecting your reputation.

Check E-Invoice and IRP Compliance

9. Review GST Liability, Advances & Place of Supply

Before finalizing books for FY 2025–26:

  • Review advances received
  • Check unbilled revenue
  • Confirm IGST vs CGST/SGST classification
  • Verify tax is payable on goods or services correctly

Errors in place of supply can result in paying tax under the wrong head.

These issues often go unnoticed until audits unless checked during year-end compliance.

Review GST Liability, Advances & Place of Supply

10. Organise Compliance Records Like You Expect an Audit

Ask yourself honestly:

If a GST audit notice arrives tomorrow, are your compliance records ready?

Ensure documentation includes:

  • Tax invoices
  • Debit/credit notes
  • E-way bills
  • RCM workings
  • ITC reconciliation
  • Proof of tax payment
  • LUT copies
  • Communication related to compliance issues

GST compliance obligations extend beyond filing. Documentation protects you under GST law.

Recommended: An Easy Guide By DSRV India: How To Register A Startup In Gurgaon

Organise Compliance Records Like You Expect an Audit

Additional Practical GST Actions Before March 2026

As Financial Year 2025-26 draws to a close, also:

  • Review pending GST refund claims
  • Respond to open GST notice matters
  • Update GST software for FY 2026-27
  • Review compliance requirements under new GST provisions
  • Conduct internal GST compliance audit

A structured compliance check list for FY 2025-26 ensures nothing important is missed.

Why This GST Year-End Compliance Check Really Matters

GST is not just about tax payment. It is about demonstrating compliance.

Many disputes under GST arise not because businesses intended to evade tax but because they did not conduct a proper year-end GST compliance review.

A thoughtful GST Checklist for Financial Year 2025-2026 helps you:

  • Protect input tax credit
  • Avoid unnecessary penalties
  • Reduce litigation risk
  • Ensure smooth transition into FY 2026-27
  • Stay aligned with GST regulations

Many businesses also consult a GST consultant in Gurgaon during the year-end review to ensure reconciliations and compliance checks are properly completed.

When 2025-26 draws to a close, take a moment to pause and ask:

Have we truly ensured compliance or have we just filed returns?

Because under the Goods and Services Tax regime, prevention in March 2026 is far easier than litigation in 2027.

A careful GST year-end compliance checklist for FY 2025-26 is not just about ticking boxes.

It’s about closing the financial year with confidence.

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