Section 16(2)(c) & 180-Day Rule Under GST: A Trap for Genuine Buyers?

Input Tax Credit (ITC) is projected as the heart of the GST system, intended to ensure seamless credit and prevent tax cascading. In practice, however, the combined effect of section 16(2)(c) and the 180-day payment condition in the second proviso to section 16(2) has created a situation where a completely compliant assessee can end up paying indirectly for the same tax twice—first to the supplier and then again to the department by way of ITC reversal with interest.

This write-up critically examines how these provisions operate, why they are fundamentally unfair to bona fide buyers, how courts across the country are reacting, and what practical protection genuine assessees can still build for themselves.

1. The Inherent “Catch-22” in Section 16

1.1 Basic structure of ITC entitlement

On paper, GST is straightforward: a registered person who purchases goods or services for business use is allowed to avail ITC if certain statutory conditions under section 16 are fulfilled. Two of these conditions are central to the current controversy:

  • Second proviso to section 16(2) – Payment to the supplier of the value of supply along with tax within 180 days from the date of invoice, failing which ITC is to be reversed along with interest.
  • Section 16(2)(c) – ITC is available only if the tax charged in respect of such supply has been actually paid to the Government by the supplier.

Put simply, the law tells the assessee:

  1. You must pay your supplier within 180 days, or else reverse ITC with interest.
  2. Even after timely payment, if the supplier withholds the tax and does not discharge it through GSTR-3B (whether by cash or by ITC), the department treats your ITC as ineligible.

The result is a classic “Catch-22”: the assessee follows every statutory requirement—receives the goods, holds a valid tax invoice, pays the supplier within 180 days, uses the goods for business—and yet can still be penalised because the supplier, an independent person, chooses not to pay the tax to the Government.

1.2 Obeying the law, still suffering the consequence

The unusual harshness lies in this mismatch of control and responsibility:

  • The assessee has no control over what the supplier does after collecting tax.
  • Yet the assessee’s ITC is made dependent on the supplier’s subsequent compliance.

The law effectively pushes the compliance burden for the supplier’s default onto the buyer, even though the buyer’s role ends after paying the value plus GST to the supplier through proper banking channels.

2. Double Recovery and Unjust Enrichment by the State

2.1 Two recovery targets for the same tax

Under the department’s interpretation, once the supplier collects tax but does not remit it, the State has two simultaneous recovery avenues for the same tax component:

  • The supplier – from whom tax can be recovered along with interest and penalty under section 73 / section 74.
  • The buyer – whose ITC can be denied or forced to be reversed with interest (and potentially penalty) on the ground that the condition under section 16(2)(c) is not met.

Nothing in the statutory framework prevents the department from:

  1. Issuing proceedings against the supplier to collect the entire output tax, interest and penalty, and
  2. At the same time, insisting that the assessee reverse ITC with interest because the supplier did not pay the tax.

In practice, both routes are frequently invoked, leading to economic double collection for one and the same tax amount.

2.2 Question of fairness under Article 265

Article 265 of the Constitution states that no tax shall be levied or collected except by authority of law. While authority may technically exist in the form of section 16(2)(c) and related provisions, serious concerns arise when:

  • The assessee has already borne the tax component in the price paid to the supplier; and
  • The Government still retains the right to recover the same tax from the supplier, while simultaneously denying ITC to the assessee.

The net impact resembles unjust enrichment—recovering tax effectively twice from different hands in respect of one taxable event—without proportional justification where the assessee is bona fide.

3. Why section 16(2)(c) Imposes an Impossible Obligation on Buyers

3.1 Lack of statutory power to monitor suppliers

Under the GST framework, a purchasing assessee has no legal or technical mandate to ensure that the supplier actually pays the tax collected. The assessee:

  • Cannot access the supplier’s GST portal,
  • Cannot view the supplier’s electronic cash ledger or ITC ledger,
  • Cannot confirm whether the supplier has fully paid his GSTR-3B liability.

The most that a genuine assessee can realistically do is:

  • Confirm that the supplier’s GSTIN is valid and active,
  • Ensure that the tax invoice complies with statutory requirements,
  • Verify that the invoice reflects in GSTR-2B,
  • Receive the goods or services,
  • Pay the consideration (including GST) through verifiable banking channels.

Beyond this, the assessee has no power to compel the supplier to deposit tax.