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Guide
Form 12BB (now Form 124)
What goes in the declaration, the proofs, landlord PAN above ₹1 lakh, and what happens if you miss the deadline.
Read guide→GuideTDS on salary
How employers estimate annual tax, spread it over the months, and report it, under section 392 of the new Act.
Read guide→Free toolHRA exemption calculator
The least-of-three rule, with the 50% limit for eight metro cities from FY 2026-27.
Open calculator→Official references
The statutory sources behind this page. We keep our guidance aligned to them — verify anything time-sensitive directly.
- Ministry of Corporate AffairsCompanies Act filings, forms and fee schedules
- Income Tax DepartmentReturns, forms, rates and e-filing utilities
- GST PortalRegistration, returns and rate notifications
Facts on this page are checked against these sources; the date of the last check is shown at the top of the page. It is general guidance, not advice on your specific facts. How we write and check our guides.