India Tax Calendar 2026 Checklist
A safe planning checklist for Indian salary taxpayers in 2026, with verification-first guidance for Form 16, ITR, advance tax, and regime comparison.
Important Indian tax dates to verify in 2026
RupeeCalc does not hardcode due dates as permanent facts because the Income Tax Department can extend or revise timelines. Use this page as a planning checklist, then verify dates on the Income Tax e-Filing portal before filing or paying.
| Topic | Typical user action | Verification required |
|---|---|---|
| Form 16 | Collect from employer and reconcile salary/TDS details. | Verify employer-issued Form 16 and AIS/Form 26AS. |
| ITR filing | Prepare return based on applicable ITR form and regime. | Check Income Tax e-Filing portal for the current due date. |
| Advance tax | Relevant for users with tax liability outside salary TDS. | Check current Income Tax Department guidance and professional advice. |
| Old vs new regime | Compare tax under both regimes before filing. | Business/profession users must check regime-switch restrictions separately. |
Useful calculators for this checklist
How to use this tax calendar without missing deadlines
Do not wait for the final filing month to organize tax documents. Salary users should review payslips quarterly, verify whether TDS is being deducted correctly, and check whether employer-declared deductions are actually supported by documents. A small monthly review reduces the chance of a large tax payable amount at filing time.
Use this calendar as a planning checklist. Due dates may be extended or changed by official notification, so always verify the final active deadline on the Income Tax Department portal. RupeeCalc intentionally avoids promising a filing outcome because tax utilities, forms, and deadlines can change during the year.
Quarterly review checklist
- April–June: confirm tax regime selection and salary structure.
- July–September: check Form 16 from the previous year and organize current-year proof.
- October–December: review deductions, HRA proofs, and TDS adequacy.
- January–March: submit proof to employer and estimate final tax payable or refund.
Document storage tip
Create one folder for the financial year and save salary slips, rent proofs, insurance receipts, investment proofs, loan certificates, bank interest certificates, capital-gain statements, and Form 16. A clean folder saves time during filing and helps explain differences between employer TDS and final return calculation.
Before relying on this page
Use this page together with the relevant calculator and source notes. Financial rules, bank terms, employer payroll handling, and official filing utilities can change. A good decision should be based on three checks: the estimate shown here, the source or formula behind it, and the final document issued by the bank, employer, government portal, or service provider.
If the number will affect tax filing, loan commitment, investment amount, or compliance, keep a copy of the inputs used and verify them again before acting. This habit prevents most mistakes caused by outdated assumptions or incomplete documents.