Tax Invoice Credit and Debit Notes

ELEMENT

OPERATIVE CONTENT

Scope

Invoice + supplementary documents framework — tax invoice timing/particulars, digital payment facility, prohibition of unauthorised collection, tax-amount transparency, credit/debit notes.

Sections covered

5 sections — Sec 31 (Tax invoice), Sec 31A (Digital payment facility — FA 2019), Sec 32 (Prohibition unauthorised collection), Sec 33 (Tax amount on invoice), Sec 34 (Credit/Debit notes).

Commencement

1 July 2017 substantive commencement; Sec 31A effective 1 January 2020 (FA 2019); FA 2022 — Sec 34(2) 30-November outer limit substitution; FA 2020 — Sec 34(1) multiple credit notes per FY.

Major amendments

FA 2019 — Sec 31A inserted (digital payment); FA 2020 — Sec 34(1) multiple credit notes; FA 2022 — Sec 34(2) 30-Nov outer limit substituted ('September' → '30 November'); e-invoicing threshold timeline (Rs. 500 cr → Rs. 5 cr Aug 2023); FA 2024 — 30-day IRN reporting framework effective 1-Apr-2025.

Operative Rules

Rule 46 (Invoice particulars); Rule 47 (Service invoice timing — 30/45 days); Rule 48(4) (E-invoicing IRN framework); Rule 49 (Bill of Supply); Rule 50, 51 (Receipt/Refund voucher); Rule 52 (Payment voucher); Rule 53 (Credit/Debit note particulars); Rule 54 (ISD invoice); Rule 55 (Delivery challan).

Key Notifications

E-invoicing threshold Notifications 13/2020-CT, 70/2020-CT, 5/2021-CT (subsequent reductions); FA 2024 30-day reporting framework; Income-tax s. 269SU coordination.

SEC

MARGINAL NOTE

OPERATIVE GIST

AMENDMENTS

KEY CASES

KEY NOTIFICATIONS / RULES

31

Tax invoice

Multi-sub-section framework. Sub-s. (1) — goods invoice (before/at removal or delivery). Sub-s. (2) — services invoice within Rule 47 timelines (30/45 days). Sub-s. (3) — seven supplementary documents: (a) revised invoice, (b) Rs. 200 de minimis, (c) Bill of Supply, (d) receipt voucher, (e) refund voucher, (f) RCM self-invoice, (g) payment voucher. Sub-ss. (4)-(7) — continuous supply + termination + pre-delivery framework.

—

Bharti Airtel (substance over form); Mohit Minerals; Mafatlal

Rule 46 (Particulars); Rule 47 (Timing); Rule 48(4) (E-invoicing IRN); e-invoicing threshold Notifications

31A

Digital payment facility (FA 2019)

Single-sentence enabling provision. Government may prescribe class of registered persons to provide digital payment modes. Coordinated with Income-tax s. 269SU framework. Rs. 50 cr turnover threshold typical.

FA 2019 — new insertion effective 1-Jan-2020

Mohit Minerals (constitutional); Bharti Airtel; Mafatlal

Rule 5(c); Income-tax s. 271DB penalty framework

32

Prohibition of unauthorised collection

Sub-s. (1) — unregistered person prohibited from collecting tax. Sub-s. (2) — registered person collects only per Act/Rules. Article 265 constitutional discipline.

—

Mohit Minerals; Bharti Airtel; Mafatlal; Whirlpool

Sec 76 (Recovery cascade); Sec 122 (Penalty); Sec 54 (Refund framework)

33

Tax amount on invoice — transparency

Non-obstante transparency provision. Tax amount prominently indicated in assessment / invoice / similar documents. Tax forms part of price.

—

Mohit Minerals (Article 265); Bharti Airtel; Mafatlal

Article 19(1)(g) framework; Rule 46 coordination

34

Credit and debit notes

Sub-s. (1) — credit note triggers (excess value/tax, returns, deficiency). Sub-s. (2) — reporting + 30-November outer limit (FA 2022 substituted from 'September') + unjust-enrichment proviso (Mafatlal framework). Sub-s. (3) — debit note triggers. Sub-s. (4) — debit note reporting (no outer limit).

FA 2020 (multiple credit notes); FA 2022 (30-November outer limit)

Mafatlal (unjust-enrichment Constitution Bench); Bharti Airtel; Mohit Minerals; Vatika

Rule 53; coordination with s. 16(4) ITC outer limit

3. KEY DOCTRINAL FRAMEWORKS

• Mafatlal Industries (1997) 5 SCC 536 — 9-Judge Constitution Bench — unjust-enrichment doctrine; Section 34(2) proviso operationalises.

• Bharti Airtel (substance-over-form) — substantive supply governs; invoice operationalises.

• Mohit Minerals — Article 246A + Article 265 constitutional framework for tax-collection discipline.

• Article 265 — no tax except by authority of law — Sec 32 transparency anchor.

• Article 19(1)(g) — right to carry on business — recipient's right-to-know on tax amount under Sec 33.

• Vatika — prospective-operation framework for FA 2022 Sec 34 substitution + FA 2019 Sec 31A insertion.

• Whirlpool — Article 226 writ jurisdiction for invoice / collection disputes.

• Calcutta Discount Co. — jurisdictional discipline + Officer's bounded authority.

FA YEAR

SECTION

NATURE

EFFECTIVE

OPERATIVE IMPACT

FA 2019

Sec 31A

Digital payment facility — new insertion

1 January 2020

Coordinated with IT s. 269SU framework

FA 2020

Sec 34(1)

Multiple credit notes per FY permitted

—

Operational simplification

FA 2022

Sec 34(2)

'30 November' substituted (was 'September')

1 October 2022

Coordinated with Sec 16(4) ITC outer limit

Notification 13/2020-CT

Rule 48(4)

E-invoicing Rs. 500 cr threshold

1 October 2020

Initial e-invoicing framework

Subsequent Notifications

Rule 48(4)

E-invoicing threshold reduction — Rs. 100 cr / 50 cr / 20 cr / 10 cr / 5 cr (Aug 2023)

Phased reduction

Progressive expansion

FA 2024

Rule 48(4)

30-day reporting framework for e-invoicing

1 April 2025

Tightening of reporting discipline

FORM GST

PURPOSE

STATUTORY ANCHOR

Tax invoice (Rule 46)

Primary GST invoice — comprehensive particulars

Sec 31(1)/(2) + Rule 46

FORM GST INV-01 (e-invoice IRN)

E-invoicing through IRP — IRN generation

Sec 31 + Rule 48(4)

Bill of Supply (Rule 49)

For exempt supplies + composition taxpayers — no tax shown

Sec 31(3)(c) + Rule 49

Receipt voucher (Rule 50)

On advance receipt

Sec 31(3)(d) + Rule 50

Refund voucher (Rule 51)

On advance received but no supply made

Sec 31(3)(e) + Rule 51

RCM self-invoice (Rule 46(t))

Recipient's self-invoice for RCM supplies from unregistered

Sec 31(3)(f)

Payment voucher (Rule 52)

On payment to RCM supplier

Sec 31(3)(g) + Rule 52

Revised invoice (Rule 53)

For pre-grant supplies within 1 month of registration

Sec 31(3)(a) + Rule 53

Credit note (Rule 53)

For value/tax/returns/deficiency reduction

Sec 34(1) + Rule 53

Debit note (Rule 53)

For value/tax increase

Sec 34(3) + Rule 53

ISD invoice (Rule 54)

ISD's distribution of credit

Sec 20 + Rule 54

ISD credit note (Rule 54)

ISD's correction credit note

Sec 20 + Rule 54

Delivery challan (Rule 55)

For job-work / sales-on-approval / inter-State stock transfer

Rule 55

EVENT / OBLIGATION

DUE DATE / TIMELINE

STATUTORY / RULE ANCHOR

Goods invoice — before/at removal or delivery

Per Sec 31(1)

Sec 31(1)

Services invoice — standard

Within 30 days of provision of service

Sec 31(2) + Rule 47

Services invoice — banking/insurance/telecom

Within 45 days

Rule 47

Revised invoice for pre-grant supplies

Within 1 month of registration grant

Sec 31(3)(a)

E-invoicing threshold — Rs. 5 cr+

1 August 2023 (operative current)

Rule 48(4) + Notification framework

E-invoicing 30-day IRN reporting (FA 2024)

1 April 2025 (initial threshold > Rs. 100 cr AATO)

Rule 48(4) + FA 2024

Credit note 30-November outer limit

30 November following end of FY OR annual return date, whichever earlier

Sec 34(2) proviso (FA 2022)

Debit note — no outer limit

Issue in subsequent return

Sec 34(4)

Sec 31A digital payment effective

1 January 2020

FA 2019

FORM GST

FREQUENCY

DUE DAY

APPLICABILITY

Tax invoice

Per supply event

On supply event

Sec 31(1)/(2)

E-invoice IRN

Per supply event

Within 30 days of invoice (FA 2024)

Rule 48(4)

Credit / Debit note

Per adjustment event

Reporting in subsequent GSTR-1 / GSTR-3B

Sec 34

Receipt voucher (advance)

Per advance receipt

On receipt

Rule 50

RCM self-invoice

Per RCM supply

On receipt of supply

Rule 46(t)

Payment voucher (RCM)

Per RCM payment

On payment

Rule 52

REFERENCE

DATE

SUBJECT

OPERATIVE IMPACT

Notification 13/2020-CT

21 March 2020

E-invoicing Rs. 500 cr threshold

Initial framework

Notification 70/2020-CT

30 September 2020

E-invoicing further specifications

Operational refinement

Notification 5/2021-CT

8 March 2021

E-invoicing Rs. 50 cr threshold

Phased reduction

Notification 17/2022-CT

1 August 2022

E-invoicing Rs. 10 cr threshold

Phased reduction

Notification 10/2023-CT

10 May 2023

E-invoicing Rs. 5 cr threshold

Current operative (Aug 2023)

FA 2024 framework

—

30-day IRN reporting

1 April 2025 (initial threshold > Rs. 100 cr AATO)

Income-tax s. 269SU + s. 271DB

—

Digital payment facility parallel framework

Sec 31A coordination

Circular 178/10/2022-GST

3 August 2022

Liquidated damages / consideration framework

Coordination with credit note framework

Circular 92/11/2019-GST

7 March 2019

Post-supply discount framework

Sec 15(3)(b) + Sec 34 coordination

SECTOR

KEY POINTERS RELATING TO THIS CHAPTER

B2B large taxpayers

E-invoicing IRN framework — above Rs. 5 cr AATO (Aug 2023). 30-day reporting (FA 2024) effective 1-Apr-2025.

B2C operations

Rs. 200 de minimis simplification for small B2C — Sec 31(3)(b).

E-commerce

Section 9(5) ECO + invoice framework + ECO's tax-collection responsibility. Coordinated framework.

Restaurants / Hospitality

Composite supply framework + Section 9(5) post-FA 2021 + invoice framework.

RCM supplies (advocates / GTA / etc.)

Sec 31(3)(f) self-invoice + Sec 31(3)(g) payment voucher discipline.

Composition taxpayers

Bill of Supply only (Sec 31(3)(c)) — cannot show tax separately. ITC denial trade-off.

Exempt supplies (healthcare / education / charitable)

Bill of Supply discipline. ITC reversal under Sec 17(2).

Real Estate / Construction

Continuous supply framework (Sec 31(5)) + works contract invoice + advance receipt framework.

Manufacturing

Goods invoice — before/at removal. Delivery challan for job-work + inter-State stock transfer.

Banking / Insurance / Telecom

45-day invoice window under Rule 47. Continuous supply framework.

Multi-State Entities

ISD invoice (Rule 54) for input services distribution. FA 2024 mandatory ISD effective 1-Apr-2025.

Export operations

Export invoice + LUT / Bond framework + zero-rated framework coordination.

10. PRACTITIONER QUICK-REFERENCE — COMPLIANCE + STRATEGIC POSTURE

• For every supply, identify invoice category — tax invoice / Bill of Supply / Receipt voucher / RCM self-invoice / Payment voucher.

• For goods, invoice before/at removal or delivery (Sec 31(1)). For services, within 30 days (45 for banking/insurance/telecom) per Rule 47.

• For e-invoicing threshold taxpayers, IRN generation through IRP — Rule 48(4) + Rs. 5 cr threshold (Aug 2023).

• FA 2024 30-day IRN reporting framework — effective 1-Apr-2025 for above Rs. 100 cr AATO initially. Practitioner monitoring.

• Section 31(3)(b) Rs. 200 de minimis — B2C transactions below Rs. 200 may forgo invoice (subject to conditions).

• Composition taxpayers issue Bill of Supply only — tax not shown separately to recipient.

• For RCM, recipient issues self-invoice (Sec 31(3)(f)) + payment voucher (Sec 31(3)(g)). Maintain documentary discipline.

• Section 31A digital payment facility — for Rs. 50 cr+ turnover, coordinate with Income-tax s. 269SU compliance.

• Section 32 prohibition — unregistered cannot collect tax; registered cannot collect except per Act/Rules. Article 265 anchor.

• Section 33 transparency — tax amount prominently in all assessment / invoice documents.

• Section 34 credit note — three triggers + 30-November outer limit (FA 2022) + unjust-enrichment proviso (Mafatlal).

• Section 34 debit note — no outer limit (additional tax + interest from original date).

• Coordinate with Sec 16(4) ITC outer limit — both at 30 November following end of FY.

• For sales returns / post-supply discounts, Sec 15(3)(b) three-condition test + Circular 92/11/2019-GST.

THIS CHAPTER SECTION

OTHER CHAPTER / SECTION

NATURE OF COORDINATION

Sec 31 (Invoice)

Sec 12-13 (Time of supply); Sec 15 (Value); Sec 37 (GSTR-1)

Substantive supply chain

Sec 31A (Digital payment)

Sec 49 (Payment); Sec 122/125 (Penalty)

Payment ecosystem framework

Sec 32 (Prohibition)

Sec 76 (Recovery — tax collected but not paid); Sec 122 (Penalty)

Recovery cascade

Sec 33 (Transparency)

Sec 171 (Anti-profiteering); Sec 31 (Invoice)

Pass-through framework

Sec 34 (Credit/Debit notes)

Sec 15 (Value); Sec 16 (Recipient ITC reversal); Sec 37 (GSTR-1)

Adjustment framework

Sec 34(2) proviso (Unjust-enrichment)

Sec 54 (Refund); Sec 57 (Consumer Welfare Fund)

Refund framework

Sec 31(3)(c) Bill of Supply

Sec 10 (Composition); Sec 11 (Exemption)

Exempt/composition framework

Sec 31(3)(f) RCM self-invoice

Sec 9(3)/(4) (RCM); Sec 16 (ITC on RCM)

RCM compliance

Sec 31(5) Continuous supply

Sec 13 (Time of supply for services)

Continuous service framework

Rule 48(4) E-invoicing

Sec 37 (GSTR-1 auto-population)

E-invoicing integration

SEC

TITLE

FILE NAME (CLICK / NAVIGATE)

PARA

SIZE

31

Section 31 - Tax invoice

Section 31 - Tax invoice.docx

182 para

44 KB

31A

Section 31A - Digital payment facility

Section 31A - Digital payment facility.docx

182 para

43 KB

32

Section 32 - Prohibition of unauthorised collection

Section 32 - Prohibition of unauthorised collection.docx

183 para

43 KB

33

Section 33 - Tax amount on invoice

Section 33 - Tax amount on invoice.docx

183 para

42 KB

34

Section 34 - Credit and debit notes

Section 34 - Credit and debit notes.docx

184 para

43 KB

FILE LOCATION DIRECTORY

All section files for this chapter are located at — C:\Users\caaru\OneDrive\Documents\Claude\Projects\GST Act\Chapter-by-Chapter\Chapter VII - Tax Invoice Credit and Debit Notes\ Total 5 section files. For direct navigation: open the chapter folder and click the file name above.

13. KEY TAKEAWAYS — CHAPTER OVERVIEW

• Chapter VII is the documentary spine — every supply generates documentation under Sec 31's seven-category framework + Sec 34 credit/debit note framework.

• E-invoicing framework (Rule 48(4)) is operationally transformative — Rs. 5 cr threshold (Aug 2023) + FA 2024 30-day reporting (1-Apr-2025).

• Section 31 invoice timing discipline directly affects time-of-supply under Sec 12 / 13 — late invoicing triggers time-of-supply pushback.

• Section 32 + Section 33 — Article 265 constitutional discipline anchors tax-collection + transparency framework.

• Section 34 credit note framework — Mafatlal unjust-enrichment Constitution Bench framework + FA 2022 30-November outer limit.

• Sec 31(3) seven supplementary documents — comprehensive operational framework for advance receipts, RCM, refund vouchers, etc.

• For composition + exempt supplies, Bill of Supply discipline — no tax shown to recipient.

• Bharti Airtel substance-over-form discipline — substantive supply governs; invoice operationalises.

• FA 2022 + FA 2024 amendments — Section 34 30-November outer limit + e-invoicing 30-day reporting — significant operational evolution.

• Practitioner's invoice + documentary discipline is foundational for ITC chain + audit-defensibility + recipient compliance.