New income-tax form numbers from 1 April 2026: the old-to-new list

The forms most people search for:

Looking for another section? The free income-tax section finder maps 167 provisions from the 1961 Act to the Income-tax Act, 2025.

From FY 2026-27 all four follow the same due dates: 31 July, 31 October, 31 January and 31 May. The TCS statement used to be due on the 15th; it now moves with the TDS returns. See TDS return due dates and the TDS and TCS rate chart.

For how the salary certificate is read and checked, see Form 16 explained; the content is the same under the new number.

Four separate forms became one. The person deducting still needs no TAN for these payments; they pay with PAN through Form 141. See the Form 141 guide, TDS on property purchase and TDS on rent.

Form 121 is one form for everyone; the separate senior-citizen version has gone. See tax on FD interest for when you can give it.

See when Forms 145 and 146 are required.

See TAN registration and 12A and 80G registration.

FY 2025-26 is still reported in Form 3CEB, due on 31 October 2026. Form 48 applies from tax year 2026-27. See the Form 3CEB due date guide, Form 3CEB filing and master file and CbC filing.

The Act also replaces the “assessment year” with the “tax year”: income of FY 2026-27 is taxed in tax year 2026-27.

Use the new numbers for anything that relates to tax year 2026-27 onwards. For earlier years, follow the form the income-tax or TRACES portal offers for that year, and expect bank and employer documents to quote both numbers for a while. Software and payroll vendors updated their templates at different speeds, so a Form 16 that says “Form 130” and one that still says “Form 16” can both be genuine for different years.