Section 16 of GST: Eligibility and Conditions for Input Tax Credit Explained

One of the biggest promises of the GST regime from 2017 in India was the concept of “seamless flow of input tax credit” (ITC). It simply means that businesses could claim credit for the taxes they already paid on their purchases or inputs, and use that credit to offset the tax payable on their sales or outputs.

This way, GST ensures tax is collected only on the “value added” at each stage of the supply chain, avoiding the cascading effect of “tax on tax”.

But here’s the catch: while the concept is pretty straightforward, the law governing ITC itself is filled with conditions, timelines, and restrictions. The heart of these rules lies in Section 16 of the CGST Act, 2017. So, let’s break it down in plain English and see what it really means for businesses like yours.

The Core Principle: Subsection (1)

Section 16(1) says:

“(1) Every registered person shall, subject to such conditions and restrictions as may be prescribed and in the manner specified in section 49, be entitled to take credit of input tax charged on any supply of goods or services or both to him which are used or intended to be used in the course or furtherance of his business and the said amount shall be credited to the electronic credit ledger of such person.”

What this means for you is:

• If you are a registered GST taxpayer, you can claim ITC on purchases made for your business.
• For example: As a manufacturer buying raw materials, or a trader buying goods for resale, or a consultant paying GST on professional services like rent or accounting.
• But you can only use this credit to reduce your GST liability, that is, your output taxand not for personal consumption.

16(2): The Conditions:

“(2) Notwithstanding anything contained in this section, no registered person shall be entitled to the credit of any input tax in respect of any supply of goods or services or both to him unless….”

Here is where things get a little stricter. Section 16(2) lays down four golden conditions you must satisfy before claiming ITC.

1. Possession of Tax Invoice or Debit Note (Clause a)

You must always have a valid invoice or debit note issued by a GST-registered supplier. This is your proof that GST has been charged properly. Furthermore, always ensure invoices clearly mention the supplier’s GSTIN, tax amount, and HSN/SAC codes.

2. Supplier Must Upload Invoice in GSTR-1 (Clause aa)

The said supplier has to file their outward supplies (GSTR-1), and the invoice must appear in your GSTR-2B. No reflection in GSTR-2B means no ITC for you. It matters as this shift’s compliance burden on recipients. If your supplier delays filing, your ITC could get blocked as well.

3. Receipt of Goods/Services (Clause b)

You can claim ITC only after receiving goods or services. Even if goods are delivered to your agent, warehouse, or another person on your instructions, it counts as receipt. For example, if you order raw materials to be delivered directly to your job worker, you’re still eligible for ITC.

4. Invoice Should Not Be Restricted in GSTR-2B (Clause ba)

Introduced in 2022, this ensures that if an invoice is marked as “restricted” in your GSTR-2B, you can’t claim ITC on it. This restriction may happen if the supplier hasn’t filed returns, paid taxes, or is flagged as risky by the Department.

5. Tax Must Be Paid to Government (Clause c)

The supplier must actually deposit GST with the government, either in cash or by using their ITC. While you can’t directly verify this, the system (via GSTR-2B) ensures only compliant suppliers’ invoices are reflected.

6. Filing of Returns by Recipient (Clause d)

You can only claim ITC if you’ve filed your own GSTR-3B return, as a taxpayer; such is a mandatory requirement on your part.

Special Provisions in Subsection (2)

• Goods received in instalments: ITC is available only when the last lot is received.
• Payment within 180 days: If you don’t pay your supplier (value + tax) within 180 days of the invoice date, you must reverse ITC with interest. You can reclaim it once you make a payment.

Take an example– If you buy goods worth ₹1,00,000 + GST 18,000 and don’t pay within 6 months, you’ll have to reverse the ITC of ₹18,000 plus applicable interest. Once you pay, you can re-avail the ITC.

16(3): Depreciation Restriction:

“(3) Where the registered person has claimed depreciation on the tax component of the cost of capital goods and plant and machinery under the provisions of the Income Tax Act, 1961 (43 of 1961), the input tax credit on the said tax component shall not be allowed.”

It means that if you claim depreciation on the GST component of capital goods under the Income Tax Act, you cannot claim ITC on that tax amount. You can only opt for one and not both. Take an example: If you buy machinery for ₹10 lakh + ₹1.8 lakh GST and claim depreciation on ₹11.8 lakh, ITC on ₹1.8 lakh is not allowed.

16(4): Timelines for Claiming ITC:

“(4) A registered person shall not be entitled to take input tax credit in respect of any invoice or debit note for supply of goods or services or both after the ⁶[thirtieth day of November] following the end of financial year to which such invoice or ⁷[****] debit note pertains or furnishing of the relevant annual return, whichever is earlier.

⁸[Provided that the registered person shall be entitled to take input tax credit after the due date of furnishing of the return under section 39 for September, 2018 till the due date of furnishing of the return under the said section for March, 2019 in respect of any invoice or invoice relating to such debit note for supply of goods or services or both made during the financial year 2017-18, the details of which have been uploaded by the supplier under sub-section (1) of section 37 till the due date for furnishing the details under sub-section (1) of said section for the month of March, 2019.]”

It states that you must claim ITC for an invoice by the 30th November of the next financial year or before filing the annual return, whichever is earlier. As an example, for FY 2023–24 invoices, ITC must be claimed by 30th November 2024. This deadline ensures businesses can’t keep ITC claims open indefinitely and also helps eliminate bogus ITC claims.

Special Relaxations: Subsections (5) & (6):

“(5) Notwithstanding anything contained in sub-section (4), in respect of an invoice or debit note for supply of goods or services or both about the Financial Years 2017-18, 2018-19, 2019-20 and 2020-21, the registered person shall be entitled to take input tax credit in any return under section 39 which is filed up to the thirtieth day of November, 2021.

(6) Where registration of a registered person is cancelled under section 29 and subsequently the cancellation of registration is revoked by any order, either under section 30 or pursuant to any order made by the Appellate Authority or the Appellate Tribunal or court and where availment of input tax credit in respect of an invoice or debit note was not restricted under sub-section (4) on the date of order of cancellation of registration, the said person shall be entitled to take the input tax credit in respect of such invoice or debit note for supply of goods or services or both, in a return under section 39,–

    (i) filed up to the thirtieth day of November following the financial year to which such invoice or debit note pertains or furnishing of the relevant annual return, whichever is earlier; or
   
    (ii) for the period from the date of cancellation of registration or the effective date of cancellation of registration, as the case may be, till the date of order of revocation of cancellation of registration, where such return is filed within thirty days from the date of order of revocation of cancellation of registration, whichever is later.]”

• Extended ITC Claim (for old years):
  Due to tax regime changes and pandemic disruptions, relaxations were put in place for the concerned years. So, for FYs 2017–18 to 2020–21, ITC could be claimed till 30th Nov 2021. This was, in all, a one-time relaxation provided to the taxpayers.
• Cancellation & Revocation of Registration:
  Now, if your GST registration is cancelled and later restored, you can still claim ITC for invoices issued during that period, provided that you file returns within 30 days of the said revocation.

Putting It All Together: The ITC Checklist

To simplify, here’s a quick humanised checklist before claiming ITC:

1. Do you have a valid GST invoice/debit note?
2. Does the invoice appear in your GSTR-2B as well (uploaded by the supplier)?
3. Have you actually received the goods/services?
4. Is the invoice not marked as restricted?
5. Has the supplier paid GST (system verified)?
6. Have you filed your GSTR-3B?
7. Have you paid your supplier within 180 days?
8. Are you claiming ITC before 30th November of the next FY?

If all answers are Yes, your ITC claim is safe.f

Why Section 16 Matters

Section 16 may look complex, but it’s the backbone of GST compliance. Here’s why it matters. It prevents fraudulent ITC claims by linking the buyer’s ITC with the supplier’s compliance. It also ensures credit flow only for genuine business expenses. Furthermore, keeps businesses disciplined about timely payments and returns. It also encourages due diligence in choosing reliable suppliers on the part of businesses.

Human Side of ITC Compliance

For small businesses, these rules sometimes feel harsh. Imagine losing ITC just because your supplier didn’t file on time, even though you paid them. That’s why many trade bodies have argued that the burden should not shift entirely to recipients.

But until the law changes, the practical takeaway is: do business only with compliant suppliers. Tools like GSTR-2B reconciliation, vendor compliance tracking, and timely follow-ups are no longer optional as now they’re survival tactics.

Final Thoughts

Section 16 of the CGST Act strikes a balance between allowing businesses to enjoy ITC benefits and preventing misuse of the system. While the conditions seem restrictive, they are designed to safeguard revenue and ensure tax discipline.

As a taxpayer, your best strategy is:

• Maintain clean documentation,
• Reconcile GSTR-3B with GSTR-2B monthly,
• Pay suppliers on time,
• Claim ITC within deadlines.

Remember, ITC is not a privilege, but it’s a right, but only when you follow the law’s conditions

Author Details-Apoorva Lamba (3rd Year Student, Madhav Mahavidyalya, Jiwaji University, Gwalior)