Knowledge Bank
Reference & Statutory Links
Curated official links and reference material for income tax, GST, and company law. Looking for a calculator or lookup tool? They've moved to their own home — visit Tools →
Utilities
Recurring Compliance Due Dates
Standard recurring due dates under general provisions. Specific due dates may be extended by CBDT/CBIC notification — always confirm the current due date before filing.
| Compliance | Frequency | Standard Due Date |
|---|---|---|
| TDS Payment (Non-Government Deductor) | Monthly | 7th of the following month |
| TDS Payment — March | Annual | 30th April |
| GSTR-3B | Monthly / Quarterly (QRMP) | 20th of the following month |
| GSTR-1 | Monthly / Quarterly | 11th of the following month |
| Advance Tax — 1st Instalment | Annual | 15th June (15% of liability) |
| Advance Tax — 2nd Instalment | Annual | 15th September (45% cumulative) |
| Advance Tax — 3rd Instalment | Annual | 15th December (75% cumulative) |
| Advance Tax — 4th Instalment | Annual | 15th March (100% cumulative) |
| TDS Return (24Q/26Q/27Q) | Quarterly | 31st of month following quarter-end (31 May for Q4) |
| ROC — Form AOC-4 | Annual | 30 days from AGM |
| ROC — Form MGT-7 / 7A | Annual | 60 days from AGM |
| Tax Audit Report (Form 3CD) | Annual | 30th September (subject to notified extensions) |
Acts
Bare Acts — Official Sources
Links to official government repositories for the full text of applicable Acts.
Rules
Rules & Regulations — Official Sources
Direct Tax
Indirect Tax
Corporate
Forms
Statutory Forms — Official Download Portals
Forms are linked to their official government portals rather than hosted here, so you always get the current version.
GST
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