Summary
Tax Calendar for September 2025 is a vital guide for every taxpayer aiming to stay compliant and stress-free during one of the busiest months in the financial year. With multiple due dates announced by the Income Tax Department, this essential calendar highlights key deadlines for advance tax payments, TDS/TCS deposits, ITR filing, and tax audit submissions. September 2025 is particularly active for individuals, businesses, and corporate entities alike, making it crucial to track each compliance date carefully. By following this tax calendar, taxpayers can avoid penalties, late fees, and last-minute pressure while ensuring smooth adherence to Indian tax laws.
Tax Calendar September 7, 2025 – TDS/TCS Deposit Deadline
The first key deadline falls on September 7, 2025. This is the last date for depositing tax deducted or collected at source (TDS/TCS) for the month of August 2025. Government offices making payments without challan must also deposit the same on this date. Additionally, any Form 27C declarations received from buyers in August must be uploaded by this deadline. Timely compliance here ensures that your transactions remain valid and penalty-free.
Tax Calendar September 14, 2025 – Issue of TDS Certificates
By September 14, 2025, deductors must issue TDS certificates for July 2025 under Sections 194-IA (transfer of immovable property), 194-IB (rent payments by individuals/HUFs), 194M (contractual payments by individuals/HUFs), and 194S (virtual digital asset transactions). These certificates are vital for taxpayers to claim credit while filing their returns.
Tax Calendar September 15, 2025 – A Crucial Date for Multiple Tax Obligations
One of the most important compliance dates this month is September 15, 2025. Several key deadlines fall on this day:
- Advance Tax Payment: Taxpayers must pay the second instalment of advance tax for AY 2026-27. Non-payment or underpayment can attract interest under Sections 234B and 234C.
- Form 24G Filing: Government offices must file Form 24G for August where TDS/TCS was deposited without challan.
- Stock Exchange Reporting: Stock exchanges must submit Form 3BB for August, detailing client code modifications.
- Extended ITR Filing Deadline: For taxpayers not subject to audit, the extended due date to file ITR for AY 2025-26 also ends on this day. Along with ITR, related declarations and forms such as 80GG (house rent deduction), 80RRB, 80QQB, 89 (relief for salary arrears), and 89A must be submitted.
- Tax Regime Options: Taxpayers must also exercise options regarding the new tax regimes under Sections 115BAC, 115BAD, 115BAE, and concessional rates under 115BBF.
Clearly, September 15 is a make-or-break date for taxpayers and demands timely preparation.
Tax Calendar September 30, 2025 – Audit Reports and Challan-Cum-Statements
The month ends with another major compliance deadline on September 30, 2025:
- Challan-Cum-Statements: Deductors must file challan-cum-statements for August 2025 under Sections 194-IA, 194-IB, 194M, and 194S.
- Tax Audit Reports (Section 44AB): For assessees subject to audit, tax audit reports must be filed by September 30, 2025. This applies to corporates, businesses, and professionals whose ITR due date falls on October 31.
- Other Audit Reports: Forms 10B, 10BB, 3AC, 3AD, 3AE, and 3CE must also be furnished, covering deductions, slump sales, exemptions, and special business activities.
- Form 9A and Form 10: Trusts and institutions intending to accumulate or apply income for future years must submit these forms.
- Reports Under Special Provisions: Reports and certificates under Sections 80LA, 80JJAA, 115JB, 115JC, 115VW and for specified funds/exempt incomes are also due.
Tax Calendar Current ITR Filing Status (As of August 30, 2025)
The Income Tax Department has reported that over 3.98 crore ITRs have already been filed, with nearly 3.8 crore verified. Out of these, 2.51 crore returns have been processed. The e-filing portal now has 13.30 crore registered individual users, showing strong adoption of digital compliance tools.
Tax Calendar: Final Thoughts
The Tax Calendar for September 2025 is loaded with significant deadlines that taxpayers cannot afford to miss. From advance tax and TDS/TCS compliances to filing ITRs and audit reports, September is a decisive month for staying tax compliant. Taxpayers should prepare well in advance, keep their financial documents ready, and file returns or reports within the stipulated dates. Timely action not only prevents penalties but also ensures smoother financial planning and stress-free compliance.
Note: All information and images used in this content are sourced from Google. They are used here for informational and illustrative purposes only.
Frequently Asked Questions (FAQs) on Tax Calendar for September 2025
Q1. What are the key income tax deadlines in September 2025?
The major deadlines are September 7 (TDS/TCS deposit for August), September 14 (issue of TDS certificates for July), September 15 (advance tax second instalment, Form 24G filing, extended ITR filing due date), and September 30 (tax audit reports, challan-cum-statements, and other prescribed reports).
Q2. What is the due date for filing ITR for non-audit cases in September 2025?
The extended due date for non-audit income tax return (ITR) filing for AY 2025-26 is September 15, 2025.
Q3. Who is required to submit audit reports by September 30, 2025?
Assessees subject to tax audit under Section 44AB must submit their audit reports by September 30, 2025. This includes corporates and businesses whose ITR filing due date is October 31.
Q4. What is the deadline for depositing TDS/TCS deducted in August 2025?
The last date to deposit TDS/TCS deducted or collected in August 2025 is September 7, 2025.
Q5. When must TDS certificates for July 2025 be issued?
TDS certificates under Sections 194-IA, 194-IB, 194M, and 194S for July 2025 must be issued by September 14, 2025.
Q6. What is the due date for paying the second instalment of advance tax for AY 2026-27?
The second instalment of advance tax must be paid on or before September 15, 2025.
Q7. What forms and declarations are due on September 15, 2025?
On September 15, taxpayers must submit declarations under Sections 80GG, 80RRB, 80QQB, relief claims under Sections 89 and 89A, and exercise options under Sections 115BAC, 115BAD, 115BAE, and 115BBF.
Q8. Which audit-related forms are due by September 30, 2025?
Forms such as 10B, 10BB, 3AC, 3AD, 3AE, and 3CE must be submitted by September 30, covering exemptions, slump sales, deductions, and specified business activities.
Q9. What is the ITR filing deadline for taxpayers requiring an audit?
For taxpayers whose accounts require audit, the last date to file ITR for AY 2025-26 is October 31, 2025.
Q10. How many ITRs have been filed so far in the current filing season?
As of August 30, 2025, over 3.98 crore ITRs have been filed, nearly 3.8 crore returns have been verified, and 2.51 crore ITRs have been processed.