Tax guide

Important Tax Deadlines & Compliance Calendar

Track common tax deadlines for individuals and businesses, then confirm the due date and filing obligation for the relevant case.

Published 2026-06-07

ITR Filing Deadlines

Identify the return category and confirm the notified filing and verification dates.

Identify whether the taxpayer falls under a non-audit, audit, transfer-pricing, belated, or revised-return route
Confirm the notified due date on the Income Tax e-Filing Portal for the relevant assessment year
Record any extension notification instead of relying on an old calendar
Track return filing and e-verification as separate deadlines

Quarterly advance tax payment schedule.

June 15: 15% of tax liability
September 15: 45% of tax liability
December 15: 75% of tax liability
March 15: 100% of tax liability
Confirm applicability, exceptions, and the current instalment schedule before paying

Build the TDS calendar from the deduction type, challan month, and quarterly statement.

Identify the applicable TDS section, challan month, and quarterly return form
Confirm the deposit date and statement due date for the relevant period
Assign an owner for deductee PAN checks, challan matching, and return preparation
Retain challans, filed statements, acknowledgements, and correction records

Build the GST calendar from registration status, return frequency, and state-specific facts.

Identify each registration, return form, filing frequency, and tax period
Confirm the due date and any extension on the GST Portal
Schedule invoice, input-tax-credit, liability, and ledger reconciliation before filing
Retain ARN, payment, amendment, and annual-return records