For Indian transfer pricing teams, October 2026 is more than another compliance month.

It is the final Form 3CEB cycle for transactions relating to FY 2025-26 before India moves to Form No. 48 under section 172 of the Income-tax Act, 2025 for Tax Year 2026-27 onwards. The change is not merely a renumbering exercise. Form 48 asks taxpayers to connect transaction data much more explicitly with the method, comparables, margins, aggregation and arm’s-length result supporting it. Income Tax India

And there is an immediate deadline point.

CBDT’s Circular No. 7/2026 dated 28 September 2026 extended the return deadline for specified ordinary audit cases from 31 October to 21 November 2026, with the corresponding audit-report date moving to 21 October. But that extension applies to persons in Serial No. 2 of the relevant section 139(1) table. Transfer pricing cases remain on their separate timetable: Form 3CEB for AY 2026-27 remains due on 31 October 2026 and the corresponding return remains due on 30 November 2026. Income Tax Department

That makes this a good moment to look beyond filing the old form and ask a more useful question:

Is the underlying TP data ready for the next reporting architecture?

Why This Really Is the Last Form 3CEB Cycle

The Income-tax Act, 2025 came into force on 1 April 2026. CBDT’s transition guidance confirms that income earned during 1 April 2025 to 31 March 2026 remains governed by the Income-tax Act, 1961 and is assessed as AY 2026-27. Income from 1 April 2026 onwards falls under the new Act as Tax Year 2026-27. Income Tax India

Accordingly, this year’s transfer pricing report still follows section 92E, Rule 10E and Form 3CEB. The Income Tax Department continues to describe Form 3CEB as the accountant’s report for international transactions and specified domestic transactions under the 1961 Act. Income Tax India

Under the new framework, the corresponding provision is section 172, Rule 85 and Form No. 48. CBDT itself describes Form 48 as the successor to Form 3CEB. Income Tax India

The statutory objective remains familiar: report covered transactions and support their arm’s-length treatment.

The way the information is organised, however, changes materially.

Form 48 Brings the TP Study Much Closer to the Tax Filing

Form 3CEB has historically required detailed reporting of international and specified domestic transactions, including values, counterparties and transaction categories.

Form 48 goes further in explicitly linking those transactions to the arm’s-length determination.

CBDT’s Form 48 FAQ confirms that the new form has six parts. It captures associated enterprises and transactions in Parts C and D, while Part E requires information regarding determination of the arm’s-length price and the amount of any adjustment. Income Tax India

More importantly, each transaction receives a system-generated transaction ID. Where transactions are aggregated because they are closely linked, the taxpayer must identify the relevant transaction IDs, state how much has been aggregated and separately track any balance not included in that aggregation. Income Tax India

The form then asks for the selected transfer pricing method and details of the comparables. Depending on the number of comparables, the taxpayer reports the relevant margin, arithmetic mean or median and, where applicable, the 35th and 65th percentiles. CBDT’s guidance contains separate illustrations for RPM, CPM and TNMM showing how the comparable result connects to the reported arm’s-length outcome. Income Tax India

CBDT’s own brochure identifies this as a deliberate feature: margins and comparables are now specifically requested, which the Department says can facilitate early closure of compliant, low-risk cases. Income Tax India

This changes the compliance mindset.

Under Form 48, inconsistencies between the ledger, transaction population, benchmarking report and filed form can become much more visible.

The Most Important Change Is Not the Form. It Is Data Discipline.

Consider a simple example.

An Indian software development centre provides services to three overseas group companies. The TP study treats the transactions together under TNMM because the activities, contractual terms and functional profile are closely linked.

Historically, the tax team might maintain one benchmarking analysis and separately prepare Form 3CEB using transaction values extracted from finance.

Under Form 48, that separation becomes harder to sustain.

The taxpayer must identify the AEs, classify the transactions, link them through transaction IDs, disclose any aggregation, identify the selected method and report the comparable result supporting the arm’s-length conclusion. Income Tax India

If finance reports ₹100 crore of services, the TP study analyses ₹96 crore and the agreement register supports ₹92 crore, the issue is no longer simply a year-end reconciliation problem.

It becomes a filing problem.

The future of TP compliance is not simply better benchmarking. It is better linkage between accounting data, legal arrangements and economic analysis.

Five Things I Would Fix During the Current Form 3CEB Season

Rather than waiting until next year, this year’s compliance exercise can be used as a dry run for Form 48:

1. Build a complete AE and counterparty master. Confirm legal names, jurisdiction, tax identifiers and the precise basis of the associated-enterprise relationship. Form 48 uses structured AE identification and permits multiple relationship tests where appropriate. Income Tax India

2. Create transaction-level reconciliation. Every TP transaction should reconcile from ledger and related-party schedules to financial statements, agreements, Form 3CEB and the TP study. Avoid unexplained “reporting buckets” that combine unrelated activities.

3. Document why transactions are aggregated. If software services to multiple AEs, royalty and manufacturing transactions, or closely linked arrangements are tested together, preserve the economic rationale. Form 48 specifically asks how transactions have been aggregated and even addresses situations where a transaction is both aggregated and separately benchmarked. Income Tax India

4. Connect benchmarking to the reported transaction. Retain the method, tested party, PLI, comparable set, adjustments and statistical result in a format that can be traced directly to the reported transaction. A PDF benchmarking report sitting independently from the finance working is no longer enough.

5. Treat financing and intangible transactions as data-heavy items. Form 48’s transaction classifications call for specific information for loans, guarantees, royalties, intangibles and restructuring arrangements, including matters such as currency, interest rate, guarantee amount, royalty terms and restructuring details. Income Tax India

This is operational transfer pricing in its most practical form.

Why This Reflects a Wider Global Direction

India’s Form 48 is a domestic reporting requirement, not an OECD form.

But its direction is consistent with the broader evolution of international transfer pricing compliance.

Chapter V of the OECD Transfer Pricing Guidelines uses a three-tier documentation framework comprising the Master File, Local File and Country-by-Country Report. The stated objective is not simply record keeping. It is to provide tax administrations with reliable information for transfer pricing risk assessment and to encourage taxpayers to meaningfully assess their own compliance with the arm’s-length principle. OECD

Country-by-Country Reporting has now been implemented in around 120 jurisdictions and is specifically used for high-level TP and BEPS risk assessment. OECD

The international direction is therefore clear: tax authorities increasingly want structured information that allows the numbers, legal entities, economic activity and TP outcome to be viewed together.

Form 48 brings that philosophy closer to transaction-level Indian reporting.

Form 48 Does Not Replace the TP Study

There is an equally important caution.

A more detailed filing form does not remove the need for robust documentation.

Section 172 requires the accountant’s report, while the new Act separately deals with maintenance of prescribed TP information and documentation under section 171. Form 48 itself contains a documentation section, including a confirmation regarding prescribed records in applicable cases. Income Tax India

The filing therefore remains the output of the TP analysis, not the analysis itself.

A transaction may be correctly classified in Form 48 and still have a weak FAR analysis.

The correct method may be selected, but the comparable search may be stale.

The 35th to 65th percentile may be correctly entered, yet the cost base used for the tested party may be wrong.

Structured reporting improves visibility. It does not substitute technical judgement.

The Opportunity for TP Teams

I would therefore resist treating Form 48 as a 2027 implementation project.

The more effective approach is to use FY 2025-26 compliance to identify where the existing TP process still depends on spreadsheets assembled after year-end.

Which transactions require manual extraction?

Which related-party balances do not reconcile?

Which agreements no longer reflect actual conduct?

Which benchmark cannot be connected cleanly to the transaction reported?

Which loan, guarantee or royalty terms are known only to Treasury or Legal?

Those are the weaknesses to address now.

Because next year, more of that underlying analysis will sit much closer to the return itself.

Closing Perspective

Form 3CEB has been part of India’s transfer pricing compliance architecture for more than two decades. Its final filing season should not therefore be viewed only as the end of an old form.

It is an opportunity to prepare for a more structured compliance environment.

The most useful lesson is simple:

Form 48 will make it increasingly difficult for the TP report, the statutory filing and the underlying financial data to tell three different versions of the same transaction.

For TP teams, the priority before next year is not merely learning a new form.

It is building one reliable transaction dataset from which the accounts, agreements, benchmarking, documentation and statutory reporting can all be explained consistently.

That is the real transition.

Research basis

This article has been prepared using CBDT Circular No. 7/2026 and the Income Tax Department’s 29 September 2026 announcement, the Income-tax Act, 2025 and CBDT transition FAQs, the existing Form 3CEB and Rule 10E, official Form 48 FAQs and CBDT guidance under Rule 85, and the OECD Transfer Pricing Guidelines and Action 13 documentation framework. Research cut-off: 3 October 2026.