Section 14 of CGST explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
Section 14 of the CGST Act, 2017 decides which GST rate applies when the rate changes around the time of a supply. It fixes the time of supply using three dates — the date the goods or services are supplied, the invoice date, and the date of receipt of payment — depending on whether the supply occurred before or after the rate change.
What Section 14 Says — In Plain English
When the GST Council changes a rate, transactions in progress straddle the change date, and it becomes unclear whether the old or new rate applies. Section 14 answers this by overriding the normal time-of-supply rules (Sections 12 and 13) for that limited purpose. It looks at three events — the actual supply, the invoice, and the payment — and asks which side of the rate-change date they fall on. A simple pattern emerges: whichever side holds two of the three events tends to fix the rate. The section also has a payment-date proviso: if payment is credited to the bank account more than four working days after the rate change, the date of credit (not the earlier book entry) is taken, to stop back-dating.
Clause / Sub-section Breakdown
| Situation | Sub-clause | Time of supply |
|---|---|---|
| Supply BEFORE change; invoice & payment both after | 14(a)(i) | Earlier of invoice or payment date (new rate) |
| Supply BEFORE change; invoice before, payment after | 14(a)(ii) | Invoice date (old rate) |
| Supply BEFORE change; payment before, invoice after | 14(a)(iii) | Payment date (old rate) |
| Supply AFTER change; payment after, invoice before | 14(b)(i) | Payment date (new rate) |
| Supply AFTER change; invoice & payment both before | 14(b)(ii) | Earlier of invoice or payment date (old rate) |
| Supply AFTER change; invoice after, payment before | 14(b)(iii) | Invoice date (new rate) |
Proviso: the date of receipt of payment is the earlier of the entry in the books or credit to the bank account; but if credited to the bank more than four working days after the rate change, the date of credit is taken.
Applicability & Scope — Who & When
- Whenever the GST rate on a good or service is increased or decreased and a transaction straddles the change date.
- It applies to both goods and services, overriding the normal time-of-supply rules in Sections 12 and 13 for that transaction.
- It is critical for correctly invoicing and paying tax around a Council-driven rate revision.
Worked Examples
Example 1 — new rate applies. The rate on a service rises from 12% to 18% on 1 October. A firm completes the service on 25 September (before the change), issues the invoice on 5 October and receives payment on 10 October — both after the change. Under Section 14(a)(i), the time of supply is the earlier of invoice or payment, i.e. 5 October, so the new 18% rate applies. On a ₹1,00,000 fee, GST is ₹18,000 instead of ₹12,000.
Example 2 — old rate applies. Same service completed on 25 September, but invoiced on 28 September (before the change) and paid on 10 October (after). Under Section 14(a)(ii), the time of supply is the invoice date (28 September), so the old 12% rate applies — GST of ₹12,000 on the ₹1,00,000 fee. Two of the three events (supply and invoice) fell on the old side, and the old rate follows.
Step-by-Step / How It Works in Practice
- Note the exact date the rate change takes effect (from the notification).
- For each straddling transaction, record three dates: supply, invoice, and payment.
- Check whether the supply was completed before or after the change (picks clause (a) or (b)).
- Apply the relevant sub-clause to fix the time of supply, then read off old vs new rate.
- Apply the four-working-day payment proviso if the bank credit is delayed, and invoice/pay tax accordingly.
Common Mistakes & Practical Notes
- Defaulting to Sections 12/13 during a rate change — Section 14 overrides them for the straddling transaction.
- Ignoring the payment proviso — a bank credit more than four working days after the change is dated by the credit date, not the book entry.
- Assuming the invoice date always controls — it depends on which of the six scenarios applies.
- Forgetting that the pattern is roughly "two events on a side fix that side's rate", which is a useful sanity check.
- Failing to reconcile invoicing systems on the change date, leading to short payment (demand under 73/74) or excess payment.
Penalties, Timelines & Related Sections
Section 14 has no penalty of its own, but applying the wrong rate causes short payment (attracting demand, interest and penalty under Sections 73/74) or excess payment (needing a refund claim under Section 54). It is a special rule that displaces Section 12 (time of supply of goods) and Section 13 (time of supply of services) only for rate-change situations, and works with the invoicing rules in Section 31 and the rate notifications under Section 9. Businesses should map every straddling transaction to the six scenarios above around each Council rate revision.
Recent Amendments & Context
The text of Section 14 has been stable since 2017, but it becomes practically important every time the GST Council revises rates — for instance rate rationalisation moves across goods and services. Each such revision sends businesses back to Section 14 to decide the rate on in-flight transactions, and CBIC change-of-rate notifications specify the effective date that anchors the six scenarios. The four-working-day payment proviso continues to guard against manipulation of payment dates around a rate change.