The form follows the tax year that starts on 1 April 2026
Sub-rule (1) limits the rule to the return of income for the tax year commencing on 1 April 2026, when that return is required under section 263(1), section 268(1)(a), or section 280. The host does not print a second tax year on that sentence.
The forms FAQ is labelled assessment year 2026-27, financial year 2025-26. Its ITR-1 line is a resident other than not ordinarily resident, total income up to Rs. 50 lakh, salary, one house property, other sources, long-term capital gains under section 112A up to Rs. 1.25 lakh, and agricultural income up to Rs. 5000. Rule 164 uses section 198, not section 112A, and it puts the house-property count at not more than two. Those are two documents. This page does not fold them into one row.
An updated return under section 263(6) is a different filing. The extra tax on that return, and the four financial years the department note lists during tax year 2026-27, stay on the updated-return page.