Reference
The tax glossary
Indian tax runs on jargon. Each term below gets one page and one job: a definition you can actually use. The full set grows to ~150 terms with the database rollout.
Tax year
The single 12-month period (1 April to 31 March) used by the Income-tax Act 2025 for both earning and assessment.
Read the definition →Marginal relief
A cap that stops your tax from exceeding the extra income that triggered it.
Read the definition →Effective tax rate
Total tax divided by total income: what you actually pay overall.
Read the definition →AIS (Annual Information Statement)
The Income Tax Department's statement of everything it knows about your financial year (salary, interest, dividends, securities trades, property deals), compiled from reporting entities.
Read the definition →Payment code (TDS)
The numeric identifier the Income-tax Act 2025 assigns to each TDS payment type in the Section 393 table, replacing the 1961 Act's section-based identification (194C, 194J and so on).
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