7 October 2026 TDS/TCS Deposit Deadline: New Income-tax Act 2025 Compliance Guide

Summary: For most non-government deductors and collectors, 7 October 2026 is the due date for depositing tax deducted or collected during September 2026, subject to special rules for challan-cum-statement transactions and Government offices. This is the first October monthly deposit cycle operating fully under the Income-tax Act, 2025 and Income-tax Rules, 2026, which apply from 1 April 2026. The underlying TDS architecture has been reorganised: salary deduction is principally under section 392, other TDS is consolidated under section 393 and TCS under section 394, while Rule 218 prescribes payment timelines and modes. Businesses should not reuse old section codes merely because the commercial transaction resembles an old section 194C, 194J, 194I or 194A payment. September deductions should be reconciled by payee, payment nature, date of credit/payment, PAN, rate, threshold, lower/nil deduction documentation and the new payment code before remittance. Government deductors paying without challan have same-day remittance rules and related Form 137 reporting. Specified challan-cum-statement cases follow their separate 30-day timeline rather than the ordinary seventh-of-next-month rule. Late deposit after deduction can trigger interest and other consequences, while the Q2 TDS/TCS statement cycle for July-September 2026 follows separately on 31 October 2026 for applicable quarterly statements. Deposit and quarterly reporting are therefore two distinct controls.

Why 7 October 2026 Matters

The Income Tax Department’s current tax-payment guidance confirms that, under the Income-tax Act, 2025, the due date for payment of TDS continues to be prescribed by the Rules and that Rule 218 of the Income-tax Rules, 2026 retains the familiar monthly timetable. For a non-government deductor, tax deducted in a month other than March is generally deposited within seven days from the end of that month. Accordingly, ordinary TDS deducted during September 2026 is generally due by 7 October 2026.

TaxGuru’s October 2026 Tax Compliance Calendar identifies 7 October as the September TDS/TCS deposit date and separately identifies 31 October as the Q2 quarterly-statement date. The two obligations should not be merged: paying tax does not file the quarterly statement, and filing a statement cannot cure a late remittance.

Income-tax Act 2025: New Section Structure

From 1 April 2026, the current law reorganises withholding provisions. TaxGuru’s explanation of Section 393 of the Income-tax Act, 2025 explains the consolidated table-based structure for non-salary TDS. Salary withholding is principally dealt with by section 392, non-salary TDS by section 393 and TCS under section 394.

The commercial substance of many withholding rules remains familiar, but section references and payment codes have changed. This is operationally important for ERP masters, accounting software, challan preparation, vendor ledgers and quarterly reporting. A payer that deducted correctly but selects the wrong payment code can create reconciliation problems that later surface in TDS statements, deductee credit or notices.

TaxGuru’s section-code chart for TDS under the Income-tax Act, 2025 lists the new codes for common payments such as interest, contracts, professional services, rent, dividends, purchase of goods, VDA consideration and payments to partners.

Rule 218: Ordinary Rule and Important Exceptions

The Income Tax Department’s tax-payment FAQ confirms that Rule 218 retains the previous policy timetable. TaxGuru’s discussion of transition provisions for TDS payments likewise records that deductions from April 2026 onward are governed by the new Act/Rules timetable.

Non-government deductors

For ordinary monthly TDS, a non-government deductor generally deposits tax by the seventh day after the end of the month of deduction. March remains a special case with the prescribed 30 April date. September 2026 therefore leads to the 7 October 2026 deadline.

Government deductors

Government offices follow a separate mechanism. Where tax is paid without production of an income-tax challan through book adjustment, remittance is on the same day. Government deductors using challan follow the prescribed monthly timeline. Form No. 137 is the new TDS/TCS book-adjustment statement corresponding to the earlier Form 24G mechanism.

TaxGuru’s Form 137 guidance explains that the form is filed by Pay and Accounts Offices, Treasury Officers or Cheque Drawing and Disbursing Officers to report TDS/TCS paid through book adjustment under Rule 218.

Challan-cum-statement cases

Specified transactions use a separate challan-cum-statement mechanism and are generally paid within 30 days from the end of the month in which tax is deducted. These include categories corresponding to specified property, rent, contractor/professional and VDA transactions under the new framework. They should not be accelerated or misclassified merely because 7 October is the ordinary monthly deposit date.

September 2026 Reconciliation Before Payment

A robust deposit process begins with the books, not with the challan. The tax team should extract all September credits and payments that may trigger TDS/TCS and reconcile them with the withholding ledger. Year-end style scrutiny is useful even for a monthly deposit because the new Act uses different references and codes.

• Identify the earlier of credit or payment wherever the relevant TDS rule uses that trigger.
• Review provisions, suspense accounts and year-to-date vendor balances so that a book credit is not missed.
• Validate PAN and deductee residential status before applying the rate.
• Map the payment to the correct section 392/393 table entry and payment code.
• Verify threshold aggregation for the tax year rather than checking only the September invoice.
• Check lower/nil deduction certificates or valid declaration-based non-deduction documents.
• Reconcile tax deducted in the general ledger with the amount proposed for challan payment.
• Separate challan-cum-statement transactions from ordinary monthly TDS.
• Preserve challan identification and bank acknowledgement for Q2 statement reconciliation.

Form 121 Declarations and Non-Deduction Cases

The new Rules also reorganise declaration-based non-deduction compliance. Where a payer relies on a valid statutory declaration under Form 121, the declaration must satisfy the current form, eligibility and procedural conditions. A declaration is not a substitute for checking whether the payee and income qualify. Payers should retain the declaration/UIN and ensure that reporting obligations linked to the declaration are completed.

Interest and Consequences of Late Deposit

TaxGuru’s TDS compliance guide for the Income-tax Act, 2025 transition notes the continuing distinction between failure to deduct and failure to deposit after deduction. Late payment after deduction generally attracts interest at 1.5% per month or part of a month for the relevant period, subject to the governing statutory provision. Other consequences can include assessee-in-default proceedings, expense disallowance in applicable cases and penalty/prosecution exposure depending on the default and facts.

The interest computation should not be postponed until quarterly return filing. If a September deduction has already become late, the deductor should compute the statutory interest through the date of actual payment and make the required remittance rather than treating 31 October as a second deposit deadline.

Q2 TDS/TCS Statements: 31 October Is a Separate Deadline

The quarter ended 30 September 2026 enters the quarterly reporting cycle after the monthly tax deposit. Applicable TDS/TCS statements for Q2 are due on 31 October 2026 under the current compliance calendar. This later date gives the deductor time to reconcile challans and deductee records, but it does not extend the September tax-payment date.

Before quarterly filing, reconcile each challan with the correct code, amount and deductee allocation; check PAN errors; identify short deduction or short payment; and verify whether correction is needed. Deductees depend on accurate reporting for tax credit, so a technically paid challan that is mapped incorrectly can still cause downstream problems.

Frequently Asked Questions

1. Is 7 October 2026 the TDS deposit date for September 2026?

For ordinary monthly TDS of most non-government deductors, yes, subject to the special rules and exceptions applicable to the transaction and deductor.

2. Does the Income-tax Act, 2025 change the monthly seventh-day rule?

The Income Tax Department states that Rule 218 of the Income-tax Rules, 2026 retains the same policy timeline for ordinary monthly deposits.

3. Should old sections such as 194C or 194J be used for September 2026 deductions?

The current transaction is governed by the Income-tax Act, 2025 framework from 1 April 2026. Payers should use the corresponding new section/table and payment code.

4. Are property, specified rent and VDA challan-cum-statement transactions due on 7 October?

Not merely because they occurred in September. Specified challan-cum-statement cases have their separate 30-day mechanism and must be tested under Rule 218/Form 141.

5. What is Form 137?

It is the new book-adjustment TDS/TCS statement for specified Government accounting officers, corresponding broadly to the earlier Form 24G mechanism.

6. Is 31 October 2026 another chance to pay September TDS without interest?

No. The quarterly statement deadline is separate from the monthly deposit deadline. A late deposit can attract statutory interest even if the quarterly statement is filed on time.

7. What should be checked before challan payment?

Payment nature, section/table, new code, PAN, residential status, threshold, rate, certificates/declarations, ledger amount and whether the transaction belongs to a challan-cum-statement category.

8. Does correct TDS payment complete Q2 compliance?

No. Applicable Q2 TDS/TCS statements must also be filed and reconciled separately.

Key Takeaways

• 7 October 2026 is the ordinary September TDS/TCS deposit deadline for applicable deductors/collectors.
• Current-period TDS uses the Income-tax Act, 2025 section/table architecture and new payment codes.
• Rule 218 retains the general seventh-of-next-month timetable, with specific exceptions.
• Government book-adjustment cases and challan-cum-statement transactions follow separate procedures.
• Late deposit after deduction can attract interest at 1.5% per month or part thereof under the applicable law.
• 31 October 2026 quarterly statement filing does not extend the 7 October payment deadline.
• ERP, challan and quarterly-statement mappings should use current codes rather than legacy section labels.

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Disclaimer: This article is for general informational and educational purposes only and reflects the Income-tax Act, 2025, Income-tax Rules, 2026, Income Tax Department guidance and related material reviewed as on 7 October 2026. It is not legal, tax, accounting or professional advice. TDS/TCS applicability, timing, rates, thresholds, payment codes, declarations, challan-cum-statement requirements, interest and reporting obligations depend on the payer, payee, residential status, transaction and applicable statutory provision. Readers should verify the live e-Filing portal, current Rules, notifications, circulars and transaction-specific requirements before payment or filing. TaxGuru, its owners, management, editors, authors, employees and associated persons accept no responsibility or liability for any loss, damage, interest, penalty, consequence, decision or action arising from reliance on or use of this article.