Comprehensive Guide to Filing Form 39 for Tax Relief Under Section 157(1) of the Income-tax Act, 2025

The phenomenon of receiving accumulated financial dues in a single financial year often inadvertently pushes an assessee into a higher tax bracket. This sudden spike in tax liability, commonly referred to as the "bunching of income," can significantly diminish the actual financial benefit of receiving past dues. To neutralize this disproportionate tax burden, the revenue authorities have established a specific computational framework. Under the newly implemented Income-tax Act, 2025, the statutory mechanism to claim this neutralization is facilitated through Form 39.

This comprehensive guide explores the intricacies of Form 39, detailing its statutory backing, procedural requirements, and the technological enhancements that distinguish it from its predecessor.

The Statutory Evolution: From 1961 to 2025

The legislative transition from the legacy tax regime to the modernized framework has brought about significant procedural changes in how an assessee claims relief on lump-sum receipts.

Historically, under the Income-tax Act, 1961, an assessee was required to submit Form 10E, which was governed by Rule 21AA of the I.T. Rules, 1962. While this legacy form served its purpose, it was often criticized for its repetitive data entry requirements and lack of automated computational support, leading to widespread filing errors.

With the enactment of the Income-tax Act, 2025, the compliance landscape has been entirely revamped. The old Form 10E has been officially decommissioned and replaced by the highly advanced Form 39. This new form is strictly governed by Rule 73 of the newly notified I.T. Rules, 2026. The corresponding substantive law that empowers the assessee to claim this relief is Section 157(1) of the Income-tax Act, 2025, which perfectly mirrors the intent of its predecessor but operates within a vastly superior digital ecosystem.

Applicability: Who Must File Form 39?

The mandate to file Form 39 applies exclusively to an individual assessee who is categorized as an employee (including government servants, corporate employees, or those working in local authorities, universities, and cooperative societies) and has received specific types of consolidated payments during the current financial year.

An assessee is legally required to submit this form if they wish to claim tax relief on any of the following categories of receipts:

  • Arrears or Advance Salary: Any supplementary salary or additional family pension disbursed as an arrear for past periods or as an advance for future periods.
  • Gratuity Disbursements: Compensation received for past services rendered to an employer. The tax treatment and relief computation differ based on the tenure of service, specifically whether the service period is <15 years or >=15 years.
  • Retrenchment Compensation: Lump-sum financial settlements provided to an assessee at the time of job termination or role redundancy.
  • Commutation of Pension: The receipt of a consolidated upfront amount in lieu of periodic future pension payments.

Important Note: Filing Form 39 is an absolute statutory prerequisite. If an assessee fails to submit this form on the designated electronic portal, any claim for relief under Section 157(1) will be systematically rejected during the processing of their Income Tax Return (ITR), potentially rendering the return defective.

Structural Anatomy of the New Form 39

To streamline the compliance burden, the revenue department has engineered Form 39 with a highly structured, logical flow. The document is bifurcated into distinct segments, ensuring that the assessee only interacts with the fields relevant to their specific financial situation.