In a significant compliance overhaul, the Income Tax Act, 2025 has introduced major changes to the Tax Collected at Source (TCS) return filing framework for Tax Year (TY) 2026-27. The reforms extend the due dates for filing quarterly TCS returns, replace the long-standing Form 27EQ with a new Form 143, and introduce a revamped reporting system aimed at improving data validation and faster tax credit processing.

While the return filing deadlines have been relaxed, the monthly TCS deposit timeline remains unchanged, making it crucial for businesses and tax professionals to distinguish between the two compliance requirements.

TCS Return Due Dates Extended

One of the most important changes is the extension of the due dates for filing quarterly TCS returns.

Earlier, TCS returns were required to be filed by the 15th day of the month following the end of each quarter. Under the new law, taxpayers can now file the return up to the last day of that month, providing additional time for reconciliation and compliance.

The revised filing calendar is as follows:

The extended timelines are expected to provide businesses with greater flexibility while preparing quarterly TCS statements.

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Form 27EQ Replaced by Form 143

Another major reform is the replacement of Form 27EQ with Form 143, effective from TY 2026-27.

According to the update, the new form has been introduced to modernize TCS reporting and improve tax administration. The key objectives include:

• Better data validation.
• Faster reflection of tax credits.
• Smoother and more efficient quarterly reporting.

Businesses using ERP systems or tax compliance software should ensure that their systems are updated to accommodate the new reporting format before filing returns.

Extended Return Filing Does Not Mean Extended Deposit Date

The update also cautions taxpayers against confusing the extension of the return filing deadline with the due date for depositing TCS.

The monthly TCS collected must still be deposited by the 7th day of the succeeding month, as prescribed under the law. This timeline has not been extended.

Failure to deposit TCS on time may attract interest under the Income-tax provisions.

Late Filing Consequences Continue

Although the return filing deadline has been extended, non-compliance continues to attract statutory consequences.

A delay in filing the quarterly TCS return may result in a late filing fee of ₹200 per day, subject to the prescribed limits. Delayed deposit of TCS, on the other hand, attracts interest separately.

Therefore, taxpayers must independently monitor both deposit and return filing obligations to avoid unnecessary financial exposure.

Businesses Should Update Compliance Systems

With Form 143 replacing Form 27EQ and revised filing timelines coming into force from TY 2026-27, businesses, tax deductors, collectors, chartered accountants and tax professionals should review their internal compliance processes.

Organizations relying on automated tax software should verify that the latest statutory changes have been incorporated well before the first quarterly filing under the new regime.

Key Takeaways

The Income Tax Act, 2025 introduces four major changes for TCS compliance:

• Form 143 replaces Form 27EQ from Tax Year 2026-27.
• Quarterly TCS return filing deadlines have been extended to the last day of the month following the relevant quarter.
• Monthly TCS deposit due date remains unchanged and continues to be the 7th of the succeeding month.
• Failure to comply may still result in late filing fees, interest and other statutory consequences.

The changes are intended to simplify quarterly reporting while strengthening data quality and tax credit processing. However, taxpayers must ensure that the relaxation in return filing timelines is not mistaken for an extension of the TCS payment deadline.

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