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Income-tax Act, 2025 | Section 171

Section 171 - Maintenance, keeping and furnishing of information and document by certain persons

Documentation is a statutory obligation, not an after-the-fact litigation file. The economic analysis should exist with the transaction records and reconcile to books, invoices, agreements and the accountant report.

Reviewed by CA Nikhil Gupta · Updated 9 October 2026

Section 171: operativeEffective 1 April 2026Tax Year 2026-27 onwardLegally reviewed 8 October 2026

Current law and effective date

Section 171 is controlled against the consolidated Income-tax Act, 2025 as amended by the Finance Act, 2026. The Act and Income-tax Rules, 2026 operate from 1 April 2026; earlier years and saved proceedings require the repeal-and-savings framework rather than automatic migration.

Primary statute: Income Tax Department consolidated Act   |   Rules: Notified Income-tax Rules, 2026

2-minute decode

Documentation is a statutory obligation, not an after-the-fact litigation file. The economic analysis should exist with the transaction records and reconcile to books, invoices, agreements and the accountant report.

Who should use this section

Persons entering international or specified domestic transactions who must maintain and furnish TP information, local documentation or master-file material.

Old-law bridge

section 92D

The old-law bridge is navigational, not automatic precedent transfer. Match the 1961 Act wording, saved proceedings, current 2025 Act text and effective date before importing an older interpretation.

Finance Act 2026 / current-law note

No section-specific Finance Act, 2026 textual substitution is separately flagged for section 171; the consolidated post-Finance-Act-2026 text remains the controlling version and must be used instead of pre-1 April 2026 extracts.

Professional alert

Application caution Rule 84 generally requires retention for nine years from the end of the relevant tax year. Preserve evidence in a retrievable, transaction-indexed form.

Connected Income-tax Rules, 2026 and Forms

RuleCurrent controlForm
Rule 84Transfer-pricing information and documentation-
Rule 123Master-file information and furnishing requirements56, 57

Worked application

A notice received on 5 September ordinarily requires a complete response within ten days unless an extension is sought and granted within the statutory limit.

Evidence / compliance checklist

  • local file (section 171 evidence control 1).
  • master file where applicable (section 171 evidence control 2).
  • inter-company agreements (section 171 evidence control 3).
  • segmented financials (section 171 evidence control 4).

Common mistake

A common section 171 error is to apply the old-law label or headline rate without rebuilding the current statutory conditions. For “Information and documentation”, the safer control is to test the exact taxpayer/transaction facts, the operative tax year, every linked Rule/Form and the Finance Act 2026 consolidated wording. Application caution Rule 84 generally requires retention for nine years from the end of the relevant tax year. Preserve evidence in a retrievable, transaction-indexed form.

Recommended approach

For section 171, start with the legal trigger in “Information and documentation”, document the evidence for that trigger, then run the computation or procedural step against the current text. As a cross-check, verify this provision-specific checkpoint: On notice, prescribed TP documentation is ordinarily furnished within 10 days; statutory extension can be up to 30 additional days.

Thresholds, periods and timing checkpoints

Related provisions and interaction map

Section 171 forms part of the sections 161-173 transfer-pricing code; apply Rules 77-124 only as relevant and cross-check sections 263, 286/296 plus treaty / PE provisions for this section.

Provision summary - verify verbatim text in the official Act

Text-status note: This guide does not reproduce the complete verbatim provision for section 171. Use the linked official consolidated Act before quoting sub-section language or preparing a filing, opinion or litigation document.

Persons entering into international or specified domestic transactions must keep prescribed information and documents for the prescribed period and manner. The Assessing Officer or Commissioner (Appeals) may require the information within ten days; on application, the period may be extended by up to thirty days. Constituent entities of international groups must also furnish prescribed master-file information.

Primary-source trail

Statute: Income-tax Act, 2025 as amended by Finance Act, 2026

Rules: Income-tax Rules, 2026

Law navigation: Income Tax Department 2025 Act / Rules hub

Quoting note: Use the official consolidated Act for verbatim legislative language.

FAQs

Does an old Income-tax Act, 1961 case automatically decide section 171?

No. The old-law bridge helps research, but transferability depends on materially matching language, transition rules and any Finance Act 2026 change.

Which text should be quoted in advice or litigation?

Quote the consolidated official statute for the relevant tax year. If this page presents a provision summary rather than complete statutory text, use the official consolidated Act for verbatim legislative language.

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