Starting April 1, 2026, several income tax forms like Form 26AS, Form 16, Form 13 and others will be renamed as the new Income Tax Act, 2025 will be effective from this date. Over time, names like Form 26AS, Form 16, and others became quite familiar to salaried employees, pensioners, senior citizens and others. So, switching to the new form numbers under the Income-tax Act, 2025 might cause some initial hiccups, especially in the early days of the rollout.