CGST Section 12: Time of Supply of Goods

Provisions under Section 12 of the CGST Act, 2017 relating to “Time of Supply of Goods”:

Bare text of Section 12

Time of Supply of Goods [*1]

(1) The liability to pay tax on goods shall arise at the time of supply, as determined in accordance with the provisions of this section.

(2) The time of supply of goods shall be the earlier of the following dates, namely: –

(a) the date of issue of invoice by the supplier or the last date on which he is required, under [*2] section 31, to issue the invoice with respect to the supply; or

(b) the date on which the supplier receives the payment with respect to the supply:

Provided that where the supplier of taxable goods receives an amount up to one thousand rupees in excess of the amount indicated in the tax invoice, the time of supply to the extent of such excess amount shall, at the option of the said supplier, be the date of issue of invoice in respect of such excess amount.

Explanation 1: For the purposes of clauses (a) and (b), “supply” shall be deemed to have been made to the extent it is covered by the invoice or, as the case may be, the payment.

Explanation 2: For the purposes of clause (b), “the date on which the supplier receives the payment” shall be the date on which the payment is entered in his books of account or the date on which the payment is credited to his bank account, whichever is earlier.

(3) In case of supplies in respect of which tax is paid or liable to be paid on reverse charge basis, the time of supply shall be the earliest of the following dates, namely: –

(a) the date of the receipt of goods; or

(b) the date of payment as entered in the books of account of the recipient or the date on which the payment is debited in his bank account, whichever is earlier; or

(c) the date immediately following thirty days from the date of issue of invoice or any other document, by whatever name called, in lieu thereof by the supplier:

Provided that where it is not possible to determine the time of supply under clause (a) or clause (b) or clause (c), the time of supply shall be the date of entry in the books of account of the recipient of supply.

(4) OMITTED [*3]

(5) Where it is not possible to determine the time of supply under the provisions of sub-section (2) or sub-section (3) or sub-section (4), the time of supply shall–

(a) in a case where a periodical return has to be filed, be the date on which such return is to be filed; or

(b) in any other case, be the date on which the tax is paid.

(6) The time of supply to the extent it relates to an addition in the value of supply by way of interest, late fee or penalty for delayed payment of any consideration shall be the date on which the supplier receives such addition in value.

Bare Text Amendments History

1. CGST Section 12 introduced vide GOI Notification dated 12/04/2017, followed with CBEC Notification 9/2017 on commencement date of 01/07/2017.

2. The text “sub-section (1) of” appearing in clause (a) of Sub-section (2) omitted, vide Section 6 of the CGST (Amendment) Act, 2018, followed with Notification 2/2019 on commencement date of 01/02/2019.

3. Sub-section (4) omitted vide Section 122 of the Finance Act 2025, commenced from 01/10/2025 vide Central Tax Notification 16/2025. Text thereof before omission:

“(4) In case of supply of vouchers by a supplier, the time of supply shall be,-

(a) the date of issue of voucher, if the supply is identifiable at that point; or

(b) the date of redemption of voucher, in all other cases.”

Commentary on Section 12 of CGST Act 2017

Section 12 determines when the GST liability on goods crystallises. Under GST, tax is not linked merely to movement of goods or receipt of consideration; instead, the law fixes a statutory point in time known as the time of supply.

This section ensures:

• Certainty in tax payment timelines

• Uniformity in return reporting

• Prevention of tax deferral by delaying invoicing or payment

The provision balances commercial realities with revenue protection by adopting the principle of earliest relevant event.

Sub-section (1): Charging Link Between Supply and Tax Liability

Core Principle: GST on goods becomes payable at the time of supply, not merely on sale, dispatch, or payment.

Significance

• Establishes time of supply as the decisive trigger for tax liability.

• Separates tax timing from contractual or accounting treatment.

This sub-section is declaratory and forms the foundation for the computational rules that follow.

Sub-section (2): General Rule for Forward Charge Supplies

This is the default rule applicable to most supplies of goods under forward charge.

Clause (a): Invoice-Based Trigger

Rule: Time of supply is linked to:

• Date of invoice, or

• Last permissible date for issuing invoice under Section 31,
  whichever is earlier.

Practical Impact

• Delayed invoicing does not defer GST liability.

• Statutory invoice timelines override commercial practices.

Clause (b): Payment-Based Trigger

Rule: If payment is received before invoice, the date of receipt becomes relevant.

Key Point: The law adopts the earlier of invoice or payment, ensuring early taxation when consideration is received in advance.

Proviso: Excess Amount up to ₹1,000

Relief Measure: Minor excess amounts received (up to ₹1,000 beyond invoice value) may, at supplier’s option, follow the invoice date instead of payment date.

Purpose: Avoids unnecessary compliance complexity for small rounding or adjustment differences.

Explanation 1: Partial Supply Recognition

Meaning: Tax liability arises only to the extent covered by invoice or payment, whichever is relevant.

Practical Use: Supports:

• Part payments

• Progressive invoicing

• Stage-wise supply accounting

Explanation 2: Meaning of “Date of Receipt of Payment”

Rule: Earlier of:

• Entry in books of account, or

• Credit in bank account.

Compliance Insight: Book entries cannot be postponed to delay GST liability once bank credit occurs.

Sub-section (3): Time of Supply for Reverse Charge Supplies

This provision governs cases where recipient is liable to pay GST.

Clause (a): Date of Receipt of Goods

Priority Trigger: Actual receipt of goods by recipient is the first determinant.

Clause (b): Date of Payment by Recipient

Rule: Earlier of:

• Entry in recipient’s books, or

• Debit in bank account.

Clause (c): Thirty-Day Deeming Rule

Fallback Mechanism: If neither receipt nor payment occurs, time of supply is deemed as the day immediately after 30 days from supplier’s invoice date.

Rationale: Prevents indefinite postponement of RCM liability.

Proviso: Ultimate Residual Rule

If none of the above dates are identifiable, the date of accounting entry in recipient’s books becomes the time of supply.

Sub-section (4): Omitted – Vouchers (w.e.f. 01.10.2025)

Legislative Change: The specific time of supply rules for vouchers have been removed.

Implication

• Voucher taxation is now governed by:

  • General supply principles, or

  • Classification as goods or services, depending on facts.

• Reduces interpretational disputes around single-purpose vs multi-purpose vouchers.

Sub-section (5): Residual Rule Where Time Cannot Be Determined

Purpose: Acts as a last-resort provision to ensure taxability is not defeated.

Clause (a): Periodical Return Cases

Time of supply becomes the due date of return filing.

Clause (b): Other Cases

Time of supply is the date of actual tax payment.

This provision ensures no supply escapes taxation due to procedural gaps.

Sub-section (6): Interest, Late Fee and Penalty for Delayed Payment

Specific Rule: Additional consideration such as:

• Interest

• Late fee

• Penalty

is taxed only when actually received, not when it becomes due.

Rationale

• Such amounts are contingent and uncertain.

• Aligns taxability with real income recognition.

Practical Significance of Section 12

• Drives monthly tax payment discipline

• Directly impacts:

  • GSTR-1 reporting

  • GSTR-3B liability

  • Interest computation under Section 50

• Critical for:

  • Advance receipts

  • Partial supplies

  • Reverse charge compliance

Concluding Observations

Section 12 provides a structured, event-based framework to identify the precise moment when GST on goods becomes payable. By prioritising the earliest taxable event, the provision safeguards revenue while maintaining commercial neutrality.

The omission of voucher-specific rules and the continued relevance of residual provisions reflect the law’s evolution towards simplicity with certainty.

A clear understanding of Section 12 is indispensable for:

• Accurate return filing

• Avoidance of interest exposure

• Defence in audits and assessments