Introduction
With the implementation of the Income-tax Act, 2025 effective from 1st April 2026, one of the most practical and immediate changes for taxpayers and professionals is the restructuring and renumbering of income tax forms. While the core compliance framework remains largely unchanged, the way forms are presented, numbered, and accessed on the e-Filing portal has been modernized to align with the new law.
To ensure a smooth transition, the Income Tax Department has introduced an “Income Tax Forms Navigator”, which helps taxpayers easily identify the corresponding forms under the new Act as compared to the old Income-tax Act, 1961.
Why Forms Have Been Renumbered under the New Act
Over the years, the Income-tax Act, 1961 accumulated a large number of forms with scattered numbering and complex references. Under the new Act, the objective is to:
- Simplify form identification
- Align forms with the structure of the new law
- Reduce confusion for taxpayers and professionals
- Improve digital navigation and filing experience
The renumbering does not change the purpose of forms but makes them more structured and logically mapped.
Dual Framework During Transition Period
During the transition phase starting from 1st April 2026, both the old and new Acts will operate simultaneously. As a result:
- Forms under the Income-tax Act, 1961 will continue for earlier years
- Forms under the Income-tax Act, 2025 will apply for Tax Year 2026–27 onwards
This dual system ensures that ongoing and past compliances are not disrupted.
Forms Available on the e-Filing Portal
To manage this transition efficiently, the Income Tax Department has categorized forms on the portal into three distinct tabs:
1. Forms as per Income-tax Act, 2025
This tab contains forms applicable for compliance under the new Act. Taxpayers filing returns or applications for Tax Year 2026–27 onwards must use these forms.
2. Forms as per Income-tax Act, 1961
This tab continues to host forms relevant for earlier years, such as Assessment Year 2026–27 (FY 2025–26) and prior periods.
3. Forms as per Other Acts
This includes forms related to other legislations such as:
- Black Money Act
- Equalisation Levy
Taxpayers must carefully select the correct tab to avoid errors in filing and mismatches in processing.
Source: Incometaxindia.gov.in
Precautions While Filing Forms
During the transition period, taxpayers must be extra cautious:
- Always select the correct Act (1961 vs 2025)
- Ensure correct Assessment Year or Tax Year selection
- Use updated form numbers for new transactions
- Avoid using old form references for post-April 2026 compliances
Incorrect selection may lead to rejection, mismatch, or delay in processing.
Gradual Expansion of Forms
The government has clarified that only 37 forms are currently enabled under the new Act. Additional forms will be made available in due course.
This phased rollout ensures:
- System stability
- Proper testing of forms
- Smooth user experience on the portal
Taxpayers should stay updated with notifications to track newly introduced forms.
Income Tax Forms Mapping Table (ITA 2025 vs ITA 1961)
| Sl. No. | Form No. (ITA 2025) | Form No. (ITA 1961) | Description |
| 1 | 1 | 3BB | Monthly statement by stock exchange for client code modification |
| 2 | 2 | 5B | Application for zero coupon bond notification |
| 3 | 17 | 3CF | Application for approval of company/research institution |
| 4 | 18 | 3CN | Application for affordable housing project notification |
| 5 | 19 | 3CS | Application for semiconductor manufacturing unit |
| 6 | 20 | 3CO | Application for agricultural extension project |
| 7 | 41 | 10F | Information for treaty benefit (non-resident) |
| 8 | 42 | 10FA | Application for Certificate of Residence |
| 9 | 50 | 3CEC | Application for pre-filing consultation |
| 10 | 51 | 3CED / 3CEDA | Application for Advance Pricing Agreement (APA) |
| 11 | 52 | 3CEF | APA Annual Compliance Report |
| 12 | 54 | New Form | APA Renewal Application |
| 13 | 55 | 34F | Application for Mutual Agreement Procedure |
| 14 | 80 | 65 | Tonnage tax scheme option |
| 15 | 104 | 10A | Registration of charitable trust (provisional) |
| 16 | 105 | 10AB | Registration of NGO / approval for deduction |
| 17 | 106 | 10AC | Order for registration/approval |
| 18 | 113 | 10BD | Donation statement by donee |
| 19 | 114 | 10BE | Donation certificate |
| 20 | 121 | 15G / 15H | Declaration for non-deduction of TDS |
| 21 | 127 | 27C | Declaration for non-collection of TCS |
| 22 | 141 | 26QB / 26QC / 26QD / 26QE | TDS challan-cum-statement (property, rent, etc.) |
| 23 | 145 | 15CA | Foreign remittance information |
| 24 | 146 | 15CB | CA certificate for foreign remittance |
| 25 | 152 | 28A | Intimation for advance tax demand |
| 26 | 174 | 10BBA | Pension fund notification |
| 27 | 180 | 9 | Approval of fund |
| 28 | 186 | 40C | Recognition of provident fund |
| 29 | 187 | 42 / 43 / 44 | Appeal related to fund approvals |
| 30 | 188 | New Form | Approval for gratuity/superannuation fund |
| 31 | 189 | 59 | Approval of public company issue |
| 32 | 190 | 59A | Approval of mutual fund investment |
| 33 | Form I (SWF) | Form I (SWF) | Sovereign Wealth Fund declaration |
| 34 | Form 1 (Ship Leasing) | Same | IFSC ship leasing declaration |
| 35 | Form 1 (IFSC Unit) | Same | IFSC unit declaration |
| 36 | Form 1 (Dividend Exempt) | Same | Dividend exemption declaration |
| 37 | Form 1 (Aircraft Leasing) | Same | IFSC aircraft leasing declaration |
Final Words
The introduction of the Income Tax Forms Navigator under the Income-tax Act, 2025 is a significant step towards simplifying tax compliance in India. While the underlying compliance requirements remain largely unchanged, the renumbering and restructuring of forms make the system more logical, user-friendly, and aligned with modern digital practices.
For taxpayers and professionals, the key to a smooth transition lies in understanding the mapping, selecting the correct forms, and staying updated with new developments.
As the new tax regime evolves, adapting to these procedural changes will be just as important as understanding the law itself.
