Section 12 – Time of Supply of Goods

Section 12 – Time of Supply of Goods

(Under the CGST Act, 2017)

Section 12 of the CGST Act, 2017 prescribes the statutory rules for determining the time of supply in respect of goods. The time of supply is the point at which GST liability legally arises. This determination is critical because tax becomes payable at that moment, irrespective of when the final settlement of consideration takes place. The provision must be read together with Section 31 (Tax Invoice) and Section 14 (Change in Rate of Tax), since invoice timing and rate changes directly influence tax liability. The section adopts an event-based structure and attaches tax liability to the earliest legally recognised commercial trigger.

Section 12(1) – Applicability

Sub-section (1) provides that the time of supply of goods shall be determined in accordance with this section. It establishes a distinct statutory framework for goods, separating them from services, which are governed by Section 13. Though concise, this sub-section forms the foundational rule that tax liability on goods arises only when the time of supply event defined under Section 12 occurs.

Section 12(2) – Time of Supply in Normal Cases (Forward Charge)

Section 12(2) lays down the general rule for determining the time of supply in forward charge cases. The time of supply is the earliest of:

• Date of issue of invoice
• Last date to issue invoice under Section 31
• Date of receipt of payment

The inclusion of the “last date to issue invoice” ensures that a supplier cannot defer tax by delaying invoice issuance. Further, the date of receipt of payment is treated as the earlier of book entry or bank credit, thereby preventing artificial postponement through accounting adjustments.

Advance Received for Goods

Earlier, since “receipt of payment” was included in Section 12(2), GST was payable even on advances received for supply of goods. Later, the Government issued Notification No. 66/2017 – Central Tax under Section 148, providing that tax on outward supply of goods shall be paid at the time of issuance of invoice and not at the time of receipt of advance.

Accordingly, the present legal position is:

• GST is not payable on advance received for supply of goods.
• Tax becomes payable only when the tax invoice is issued.
• This applies to both full and partial advances.

This relaxation applies to outward supply of goods under forward charge as governed by Section 12(2). It does not apply to reverse charge cases under Section 12(3) and is not applicable to persons paying tax under Section 10 (Composition Scheme).

Therefore, where advance is collected for manufacturing or trading transactions, GST liability arises only at the time of removal or delivery of goods along with issuance of invoice. The benefit is available only where the transaction qualifies as a supply of goods; if the transaction is in substance a service or a works contract treated as service, the time of supply shall be determined under Section 13.

Section 12(3) – Time of Supply under Reverse Charge

Where tax is payable under reverse charge, the liability shifts to the recipient of goods. In such cases, the time of supply is the earliest of:

• Date of receipt of goods
• Date of payment (earlier of book entry or bank debit)
• Thirty days from the date of issue of invoice by the supplier

If none of these events can be determined, the time of supply becomes the date of entry in the books of account of the recipient. The inclusion of receipt of goods as a trigger is particularly significant in goods transactions, and the thirty-day ceiling ensures that tax under reverse charge cannot be indefinitely postponed.

Section 12(4) – Time of Supply of Vouchers

(Omitted w.e.f. 01.10.2025 – No Longer Operative)

Section 12(4), which earlier governed time of supply of vouchers relating to goods, has been omitted by the Finance Act, 2025, notified through Notification No. 16/2025 – Central Tax dated 17.09.2025, with effect from 01.10.2025. Accordingly, this sub-section is no longer in force.

Earlier Position (Prior to 01.10.2025)

Before omission, the provision determined taxability as follows:

• Identifiable goods → tax at time of issue of voucher
• Non-identifiable goods → tax at time of redemption

The principle was that tax arose when the underlying supply became ascertainable. Pre-01.10.2025 transactions remain governed by the earlier provision.

Section 12(5) – Residual Provision

If the time of supply cannot be determined under sub-sections (2) or (3), the Act provides a fallback mechanism. The time of supply shall be:

• The date on which a periodical return is required to be filed, or
• The date on which tax is paid, in any other case

This ensures that no supply escapes taxation due to technical uncertainty or interpretational gaps.

Section 12(6) – Interest, Late Fee or Penalty

Where additional consideration is received by way of interest, late fee, or penalty for delayed payment of consideration, the time of supply for such additional amount is the date of receipt. The principal supply continues to be taxed under Section 12(2), while the interest or penalty component becomes taxable only upon receipt.

This avoids retrospective taxation of delayed payment charges.

Section 12(7) – Change in Rate of Tax

Where there is a change in GST rate applicable to goods, the determination of time of supply depends upon the relationship between:

• Date of supply
• Date of invoice
• Date of receipt of payment

Depending on whether these events occur before or after the rate change, the applicable rate is determined in accordance with the statutory matrix. Section 14 must be read together with this provision to ensure proper rate application and to prevent timing manipulation for tax advantage.