Section 34: Credit notes — grounds, reporting and adjustment

Section 34 of the Central Goods and Services Tax Act, 2017 permits a registered supplier to issue a credit note in specified circumstances, including when the invoice taxable value or tax charged exceeds the amount payable, goods are returned, or goods or services are deficient. The Act also sets a reporting cut-off and limits when the supplier may reduce output tax liability. Central Goods and Services Tax Act, 2017, Section 34

Grounds for a credit note

Under section 34(1), a registered supplier may issue a credit note where an invoice has been issued and one of the listed circumstances applies: the taxable value or tax charged exceeds the amount payable for the supply; goods supplied are returned; or supplied goods or services are deficient. The credit note must contain prescribed particulars. Central Goods and Services Tax Act, 2017, Section 34(1)

The provision does not say that every commercial price adjustment automatically reduces output tax. Check the transaction against the statutory grounds and the applicable prescribed particulars before reporting a tax adjustment. Central Goods and Services Tax Act, 2017, Section 34(1)–(2)

Reporting cut-off

A registered person issuing a credit note must declare its details in the return for the month in which it is issued. The declaration cannot be later than 30 November following the end of the financial year in which the supply was made, or the date the relevant annual return is furnished, whichever is earlier. The tax liability is adjusted in the prescribed manner. Central Goods and Services Tax Act, 2017, Section 34(2)

When assessing the reporting window, identify the financial year of the supply, the month the credit note was issued, and the date the relevant annual return was furnished. Apply the earlier of the two statutory dates. This checklist summarizes section 34(2); it does not add a separate deadline or remedy. Central Goods and Services Tax Act, 2017, Section 34(2)

Limit on reducing output tax

Section 34(2) does not permit a supplier to reduce output tax liability if the input tax credit attributable to the credit note, where availed by a registered recipient, has not been reversed by that recipient. In other cases, reduction is not permitted if the incidence of tax on the supply has been passed on to another person. Central Goods and Services Tax Act, 2017, Section 34(2), proviso

The statutory test is recipient ITC reversal where availed for a registered recipient, and tax incidence not passed on in other cases. Section 34 does not make portal acceptance or a particular portal state the test in the text cited here; verify any separate operational portal rule against its current official source before relying on it. Central Goods and Services Tax Act, 2017, Section 34(2), proviso

Practical document review

For a proposed credit-note adjustment, gather the original invoice, evidence for the applicable section 34(1) ground, the credit note and its particulars, the financial year of supply, the issue month, the relevant annual-return filing date, and recipient information needed to assess the section 34(2) proviso. These are review inputs, not additional statutory conditions beyond those described above.

• Identify which section 34(1) ground applies and document the facts supporting it [Central Goods and Services Tax Act, 2017, section 34(1)].
• Check the credit note's prescribed particulars against the applicable current rules.
• Work out the reporting cut-off under section 34(2), using the earlier of 30 November after the supply financial year and the relevant annual-return filing date [Central Goods and Services Tax Act, 2017, section 34(2)].
• Assess the output-tax reduction condition in the section 34(2) proviso [Central Goods and Services Tax Act, 2017, section 34(2), proviso].
• Retain the source documents and return information used in the assessment.

FAQ

Does every commercial adjustment reduce output tax?

Section 34 allows a credit note for the circumstances it lists. Whether the supplier may reduce output tax also depends on the reporting requirement and the proviso in section 34(2). Central Goods and Services Tax Act, 2017, Section 34(1)–(2)

What is the section 34(2) reporting cut-off?

The return for the month of issue, no later than 30 November after the financial year of supply or the date the relevant annual return is furnished, whichever is earlier. Central Goods and Services Tax Act, 2017, Section 34(2)

Must the recipient reverse ITC?

Where a registered recipient availed ITC attributable to the credit note, the supplier's output-tax reduction is not permitted if that ITC has not been reversed. Central Goods and Services Tax Act, 2017, Section 34(2), proviso

Does this section require a portal acceptance status?

Section 34's cited text describes the ITC-reversal / tax-incidence tests, not a portal-status test. Any separate portal requirement needs its own current official source. Central Goods and Services Tax Act, 2017, Section 34(2), proviso

Sources

• India Code, Central Goods and Services Tax Act, 2017, section 34 (consolidated text through Finance (No. 2) Act, 2024): https://indiacode.gov.in/server/api/core/items/1f98f6d0-ec9d-42f0-bd50-dc34d25998e1
• The section 34 text used here is current as amended by the Finance Act, 2025, which substituted the proviso to sub-section (2) with effect from 1 October 2025.

What to send for a review

Send the original invoice with supply year, reason with agreement terms, note date, recipient credit position and return filings under the Central Goods and Services Tax Act, 2017, Section 34. The review returns your eligibility check with the cut-off computation and reporting rows.