India income tax resource centre

Income Tax in India: PAN, Return Filing, Deductions, Rules and Appeals

A practical guide to key income tax obligations in India, including Permanent Account Number (PAN), income tax returns, exemptions, deductions, tax compliance, assessments and appeals.

Important: Tax provisions, rates, forms and due dates may change by financial year and assessment year. The linked archive includes historical material; verify current requirements through the Income Tax e-Filing portal and Income Tax Department before taking action.

Understanding Indian income tax

Income tax applies to taxable income determined under the relevant law and the taxpayer's residential status, income category, exemptions and permitted deductions. Individuals may need to compare the default new tax regime with the old regime where an option is available. Businesses, professionals, companies, trusts and other entities have different filing and compliance requirements.

For tax year 2026-27 and later periods, check the applicability and commencement of the Income-tax Act, 2025 and the associated rules and transitional provisions. Earlier assessment years remain subject to the law applicable to those periods.

PAN and taxpayer identification

Learn when PAN is required, how to apply, when to quote it in transactions, and how to report changes.

Income tax returns, e-filing and deadlines

Return filing involves choosing the applicable ITR form, reconciling AIS and Form 26AS, paying outstanding tax and completing e-verification.

Exemptions, deductions and tax planning

Eligibility for deductions depends on the applicable tax regime, taxpayer category and assessment year. Some provisions linked below are historical or no longer available.

Income tax law, rules, rates and compliance

Review statutory provisions, tax audits, TDS, business expenses and reporting obligations. Older financial-year rate tables are preserved as historical references.

Assessment, appeals and remedies

Assessment notices and appeals are subject to statutory procedures and strict deadlines; confirm the applicable provision and order date.

International tax reference articles

Country-specific articles below include historical tax years and should not be relied upon as current rates.

Other compliance resources

Related employer compliance guidance.

Frequently asked questions

Where can I file my income tax return?

Use the official income tax e-Filing portal to file returns, view notices, verify returns and access taxpayer services.

Is PAN necessary for every transaction?

No. PAN quoting is required for specified transactions and circumstances under applicable law. See the PAN transaction guidance linked above.

Are all listed deductions available under the new tax regime?

No. Several deductions and exemptions are restricted or unavailable under the new regime. Check eligibility for the relevant tax year.

Can I rely on the older tax rate articles?

Historical rate articles are useful for their stated financial years only. Confirm current rates using official tax schedules.