---
title: "GST Section 16(4) 2026: ITC Time Limit, RCM & Consequences"
description: "Understand GST Section 16(4) ITC time limit, how to identify the deadline, scope and applicability, RCM treatment, and consequences of missing the ITC deadline."
canonical: "https://busy.in/gst/gst-section-16-4-itc-time-limit-2026/"
author: "Bharat Choudhary"
published: "2026-01-05T15:00:00.000Z"
category: "GST"
---

-   Section 16(4) of the CGST Act sets the time limit for claiming Input Tax Credit (ITC) on invoices and debit notes.
-   The current deadline is the earlier of 30 November following the end of the relevant financial year or the date of filing the annual return for that financial year.
-   Filing GSTR-9 early can close the ITC window earlier than 30 November.
-   For debit notes, the date of the debit note is relevant from 01.01.2021, as clarified by CBIC.
-   For RCM supplies from unregistered suppliers, the relevant financial year is linked to the self-invoice issued by the recipient, subject to payment of tax and other ITC conditions.
-   ITC should not be claimed merely because an invoice exists. Conditions under Section 16(2), Rule 36 and GSTR-2B communication also matter.
-   If ITC is reversed due to non-payment to the supplier within 180 days, it can be re-availed after payment. Rule 37(4) says the Section 16(4) time limit does not apply to such re-availment.

This guide explains how Section 16(4) works in practical situations such as normal purchases, debit notes, RCM, imports, GSTR-2B delays, 180-day reversals and old ITC disputes.

# GST Section 16(4) - ITC Time Limit Rules

## **What is Section 16(4) of the CGST Act?**

Section 16(4) restricts the time within which a registered taxpayer can claim ITC for an invoice or debit note. In simple terms, it sets a legal closing date for claiming credit. Once that date passes, the taxpayer generally cannot claim that credit in a later GSTR-3B.

### **ITC Deadline Table**

| Financial Year of Invoice or Debit Note | Normal ITC Claim Deadline |
| --- | --- |
| FY 2022-23 | 30 November 2023 |
| FY 2023-24 | 30 November 2024 |
| FY 2024-25 | 30 November 2025 |
| FY 2025-26 | 30 November 2026 |

Note: This table assumes that [**GSTR-9**](https://tutorial.gst.gov.in/userguide/returns/FAQs_gstr9.htm) is not filed before 30 November. If the annual return is filed earlier, the annual return filing date becomes the deadline.

## **How to Calculate the ITC Deadline**

| Situation | What it Means | Example | ITC Deadline |
| --- | --- | --- | --- |
| Invoice or debit note belongs to a particular financial year | First identify the financial year of the invoice or debit note | Invoice dated 15 February 2026 belongs to FY 2025-26 | Move to the next step |
| GSTR-9 has not been filed before 30 November | The normal Section 16(4) deadline applies | For FY 2025-26, the next financial year is FY 2026-27 | 30 November 2026 |
| GSTR-9 is filed before 30 November | The [**annual return filing**](https://busy.in/gst/gst-returns/) date becomes the ITC deadline | If GSTR-9 for FY 2025-26 is filed on 10 October 2026 | 10 October 2026 |
| GSTR-9 is filed after 30 November | 30 November remains the deadline because it is earlier | If GSTR-9 for FY 2025-26 is filed on 20 December 2026 | 30 November 2026 |

## **Conditions That Must Be Checked Before Claiming ITC**

Section 16(4) only decides the time limit for claiming ITC. It does not make a credit eligible by itself. Before claiming ITC, the taxpayer should check whether:

-   A valid tax invoice, debit note or prescribed tax-paying document is available.
-   Goods or services have been received.
-   Supplier details have been furnished and communicated where required.
-   The ITC is not restricted under Section 38.
-   Tax has been paid to the government.
-   GSTR-3B has been filed.
-   Blocked [**credit under Section 17(5)**](https://busy.in/gst/what-is-blocked-credit-in-gst-a-guide-to-section-175/) does not apply.

## **Debit Note ITC Rules Under Section 16(4)**

Section 16(4) was amended by the Finance Act 2020, effective from 01.01.2021, to delink the debit note date from the underlying invoice date for ITC time-limit purposes. CBIC Circular 160/16/2021-GST clarified that from 01.01.2021, the date of issuance of the debit note, not the date of the original invoice, determines the relevant financial year for Section 16(4). The ITC time limit for the debit note is calculated separately based on the debit note's financial year.

### **Debit Note Example**

| Particular | Details |
| --- | --- |
| Original invoice date | 16 March 2021 |
| Debit note date | 7 July 2021 |
| Invoice FY | FY 2020-21 |
| Debit note FY | FY 2021-22 |
| ITC deadline for debit note | 30 November 2022, unless GSTR-9 for FY 2021-22 was filed earlier |

In this example, the debit note belongs to FY 2021-22 because it was issued on 7 July 2021. Therefore, the ITC deadline should be calculated with reference to FY 2021-22, not FY 2020-21.

## **RCM and Section 16(4)**

RCM needs separate treatment because, in some cases, the recipient is responsible for issuing the invoice and paying GST. The relevant financial year for Section 16(4) depends on the document used for claiming ITC.

| Situation | Relevant Document | ITC Deadline is Based On |
| --- | --- | --- |
| Normal purchase | Supplier tax invoice | Financial year of the supplier invoice |
| RCM from registered supplier | Supplier tax invoice | Financial year of the supplier invoice |
| RCM from unregistered supplier | Self-invoice issued by recipient | Financial year in which the recipient issues the self-invoice |

Where the supplier is unregistered and the recipient is required to issue a self-invoice under Section 31(3)(f), CBIC Circular 211/5/2024-GST clarifies that the relevant financial year for Section 16(4) is the year in which the recipient issues the self-invoice. However, delayed self-invoicing or delayed RCM tax payment can still create interest and penalty exposure.

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## **Import IGST and Bill of Entry ITC**

Rule 36 treats a Bill of Entry, or similar customs document prescribed for assessment of IGST on imports, as a valid document for claiming ITC. The application of Section 16(4) to import IGST has seen recent advance ruling activity.

Some rulings have taken the view that time limits apply to import IGST claimed on the basis of Bill of Entry or the reassessed Bill of Entry. However, advance rulings are generally binding only on the applicant and the concerned officer or jurisdictional officer.

### **Practical Position for Importers**

Importers should treat Bill of Entry ITC as a high-risk area if it is not claimed within the normal Section 16(4) timeline. Maintain a separate import ITC register with:

-   Bill of Entry number and date
-   IGST paid
-   Month in which ITC appears in records
-   Month in which [**ITC is claimed in GSTR-3B**](https://busy.in/gst/matching-reversal-and-reclaim-of-itc/)
-   Reassessment order date, where applicable
-   Reason for delay, if any

## **GSTR-2B, Late Supplier Filing and Section 16(4)**

### **What Businesses Should Do**

A common issue is that the buyer has the invoice in their books, but the supplier has not reported it correctly in GSTR-1 or IFF. In such cases, the invoice may not appear in GSTR-2B, which makes ITC risky even if the invoice is genuine. Here is how businesses can handle common GSTR-2B issues:

| Situation | Practical Action |
| --- | --- |
| Invoice is not in GSTR-2B | Follow up with supplier immediately |
| Supplier has filed wrong GSTIN or invoice details | Ask supplier to amend details within allowed timeline |
| Deadline is approaching | Escalate high-value invoices to accounts, purchase and vendor teams |
| Supplier refuses to correct | Evaluate recovery from supplier or legal remedy |

Businesses using accounting software like BUSY [**Accounting Software**](https://busy.in/accounting-software/) can track purchase invoices, reconcile GSTR-2B, identify missing supplier entries, and follow up before the Section 16(4) deadline gets too close.

## **180-Day Payment Rule and ITC Re-Availment**

The 180-day payment rule is separate from Section 16(4). Under Section 16(2), if a recipient does not pay the supplier the [**value of the supply plus tax**](https://busy.in/gst/value-of-supply-under-gst/) within 180 days from the invoice date, ITC has to be paid or reversed with interest. This rule does not apply to RCM supplies.

Once the recipient later makes payment to the supplier, ITC can be re-availed. Importantly, Rule 37(4) says that the Section 16(4) time limit does not apply to re-availment of credit that was reversed earlier. For instance, in the example given below, the credit should have been validly availed first and then reversed due to non-payment. Re-availment is different from claiming fresh missed ITC.

### **Example**

| Event | Date |
| --- | --- |
| Invoice date | 1 June 2025 |
| ITC claimed | June 2025 GSTR-3B |
| 180-day period ends | Around 28 November 2025 |
| Supplier payment made | 15 February 2027 |
| Can ITC be re-availed after payment? | Yes, if it was earlier reversed under Rule 37 |

## **Section 16(5) and 16(6) Relief**

Sections 16(5) and 16(6) were inserted by Finance (No. 2) Act, 2024 with retrospective effect from 01.07.2017. Section 16(5) gives relief for invoices or debit notes pertaining to FY 2017-18, FY 2018-19, FY 2019-20 and FY 2020-21 if ITC was taken in a **Section 39** return filed up to 30 November 2021. Section 16(6) gives relief in certain cases where GST registration was cancelled and later revoked, subject to the conditions mentioned in the provision.

For central GST, Notification No. 22/2024-Central Tax is dated 8 October 2024 and allows rectification applications within 6 months from the notification date. Circular 237/31/2024-GST also confirms this process.

### **When Does the Rectification Process Apply?**

-   An order under Section 73, 74, 107 or 108 confirmed a demand for wrong ITC due to Section 16(4)
-   The [ITC is now available under Section 16(5) or 16(6)](https://busy.in/gst/complete-guide-to-input-tax-credit-under-gst-in-india/)
-   No appeal against that order has been filed
-   Application is filed within the prescribed time under Notification 22/2024-Central Tax

Circular 237 also clarifies that where proceedings are pending, or a demand notice has been issued but no order has been passed, the authority should take cognizance of Section 16(5) or 16(6). Relief is not limited only to cases where a final demand order already exists.

### **No Refund for Already Paid Amounts**

Section 150 of Finance (No. 2) Act, 2024 provides that no refund will be given for tax already paid or ITC already reversed because of the retrospective insertion of Section 16(5) and 16(6). CBIC Circular 237 repeats this position.

## **Consequences of Missing the ITC Deadline**

If ITC is not claimed within the Section 16(4) time limit, the business may lose the credit and may also face cash flow pressure, demand proceedings, interest and penalty exposure.

| Consequence | Practical Impact |
| --- | --- |
| ITC loss | Credit may become unavailable in later returns |
| Higher cash outflow | More output GST may need to be paid in cash |
| Working capital pressure | Missed ITC directly affects cash flow |
| Departmental demand | Wrongly claimed time-barred ITC may be disputed |
| Interest and penalty exposure | Demand proceedings may include interest and penalty |

For FY 2024-25 onward, Section 74A applies to determination of tax not paid, short paid, erroneously refunded or [**ITC wrongly availed**](https://busy.in/gst/reversal-of-input-tax-credit-in-gstr-2/) or utilised. Earlier periods may fall under Sections 73 or 74, depending on the facts of the case.

## **Practical Compliance Checklist**

| Check | Why It Matters |
| --- | --- |
| Maintain invoice-wise ITC tracker | Helps identify missed ITC before deadline |
| [**Reconcile GSTR-2B**](https://busy.in/accounting-software/gstr-reconciliation/) ****every month**** | Avoid year-end surprises |
| Track debit notes separately | Debit note date may determine the relevant FY |
| Keep RCM self-invoice register | Helps apply Circular 211 correctly |
| Track import IGST by Bill of Entry | Reduces risk of missing import credits |
| Avoid early GSTR-9 filing | Annual return filing can close the ITC window |
| Monitor 180-day supplier payment | Prevents reversal and interest exposure |
| Re-avail Rule 37 reversals correctly | Re-availment is not blocked by Section 16(4) |
| Follow up with suppliers before October | Gives time for GSTR-1 correction |
| Review old Section 16(4) demands | Some cases may qualify under Section 16(5) or 16(6) |

## **Conclusion**

Section 16(4) is one of the most important ITC control provisions under GST. The basic rule is simple: claim ITC by the earlier of 30 November after the relevant financial year or the date of [**filing the annual return**](https://busy.in/gst/guide-to-gstr-9/) . The practical challenge is that this deadline interacts with GSTR-2B, debit notes, RCM, imports, 180-day payment reversals, and old litigation relief.

The safest approach is to run monthly ITC reconciliation, track vendor filing gaps early, avoid filing GSTR-9 until ITC review is complete, and maintain separate registers for debit notes, RCM and import IGST. Also, businesses should correct two common misunderstandings: debit note ITC is not governed by a Finance Act 2023 [**reversal of rules**](https://busy.in/gst/reversal-of-input-tax-credit/) , and ITC re-availed after a 180-day reversal is not barred by Section 16(4).

## About the author

**Bharat Choudhary**

As a Chartered Accountant with more than 8 years of experience, I have refined my skills in the field and developed a true passion for writing. I specialize in creating insightful content on topics such as GST, income tax, audits, and accounts payable. By focusing on delivering information that is both engaging and informative, I aim to share valuable insights that resonate with readers.

## Frequently asked questions

### What is the time limit for claiming ITC under Section 16(4)?

The time limit is the earlier of 30 November following the end of the financial year to which the [**invoice or debit note pertains**](https://busy.in/gst/a-guide-to-debit-notes-under-gst/) , or the date of filing the annual return for that financial year.

### What is the ITC deadline for FY 2025-26?

For FY 2025-26 [**invoices and debit notes**](https://busy.in/business-accounting-format/debit-note-format/) , the normal deadline is 30 November 2026, unless the annual return for FY 2025-26 is filed earlier.

### Should I file GSTR-9 before checking pending ITC?

No. Businesses should first review pending invoices, debit notes, RCM credits and import IGST before filing GSTR-9. [**Filing GSTR-9**](https://busy.in/gst/guide-to-gstr-9/) early can close the ITC window earlier than 30 November.

### Can ITC be claimed if the invoice is not in GSTR-2B?

Under current law, this is risky and generally should not be advised as a normal practice. Section 16(2)(aa) and Rule 36(4) require suppliers to report and communicate with the recipient through the prescribed system.

### What should I check before claiming ITC on a debit note?

Check the debit note date, confirm the financial year to which it belongs, and ensure the debit note is properly linked to the original supply. Also verify that it appears in the relevant GST records before [**claiming ITC**](https://busy.in/gst/input-tax-credit/) .

### Did Finance Act 2023 change the debit note ITC time limit?

No. The debit note delinking was through the Finance Act 2020, effective 01.01.2021. The Finance Act 2023 amended the language of the 180-day payment rule in Section 16(2), not the debit note time limit in Section 16(4).

### How does Section 16(4) apply to RCM from an unregistered supplier?

For RCM supplies from unregistered suppliers where the recipient issues a self-invoice, the relevant financial year is the year in which the recipient issues that self-invoice. Late self-invoicing can still attract interest and possible penalty.

### Does the 180-day payment rule apply to RCM?

No. The 180-day non-payment reversal rule excludes supplies on which tax is payable under reverse charge.

### What is the difference between re-availing reversed ITC and claiming missed ITC?

Re-availing reversed ITC means the taxpayer had claimed the credit earlier, reversed it because payment was not made within 180 days, and later reclaims it after making payment. [Claiming missed ITC means](https://busy.in/gst/gst-section-16-4-itc-time-limit-2026/) the credit was never claimed earlier. Section 16(4) does not block Rule 37 re-availment, but it can block fresh missed ITC.

### Does Section 16(4) apply to import IGST on Bill of Entry?

Rule 36 recognizes the Bill of Entry as a document for ITC on imports. Recent advance rulings have treated import [**IGST as subject to Section 16(4)**](https://busy.in/gst/the-different-types-of-gst-in-india-cgst-sgst-igst-and-utgst/) , but advance rulings are binding only on the applicant and the concerned officer. Importers should still treat delayed import ITC as a high-risk area.

### What is Section 16(5) relief?

Section 16(5) gives retrospective relief for ITC relating to FY 2017-18 to FY 2020-21, where the ITC was taken in a Section 39 return filed up to 30 November 2021.

### Is the Section 16(5) rectification application still open in 2026?

For CGST, the special rectification window under Notification No. 22/2024-Central Tax was linked to the notification dated 8 October 2024 and a 6-month application period. Taxpayers should check whether any separate state-specific notification or valid pending proceeding applies before assuming that relief is still available.

### Can a business get refund for tax already paid due to old Section 16(4) denial?

No. CBIC Circular 237 clarifies that no refund is available for tax already paid or ITC already reversed due to the retrospective insertion of Section 16(5) and 16(6).

### Does Section 16(4) apply to capital goods?

Yes. Section 16(4) applies to ITC on invoices and [**debit notes for goods or services**](https://busy.in/gst/a-guide-to-debit-notes-under-gst/) . Capital goods are not separately exempt from this time limit. Also, if depreciation is claimed on the GST component of capital goods, ITC on that tax component is not allowed.

## Related articles

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