80C is Now Section 123: What Changed and What Stayed the Same
Section 80C is now Section 123 under the Income Tax Act 2025. The Rs 1.5 lakh deduction limit, eligible investments, and old-regime-only rule are unchanged – only the number changed.
Section 80C is now Section 123 under the Income Tax Act 2025. The Rs 1.5 lakh deduction limit, eligible investments, and old-regime-only rule are unchanged – only the number changed.
Marginal relief caps your tax at the amount by which your income exceeds ₹12 lakh. Worked examples for the new regime, the relief zone up to ₹12,70,588, and who doesn’t qualify.
Form 16 becomes Form 130, Form 26AS becomes Form 168, and 15G/15H merge into Form 121 from April 1, 2026. Complete old-to-new form number table with dates, FAQ, and what stays the same.
Old section numbers change under the Income Tax Act, 2025: 80C becomes Section 123, 139 becomes Section 263, 115BAC becomes Section 202. Full verified old-vs-new mapping table.
Section 139A (PAN) is now Section 262 under the new Income Tax Act 2025. Your PAN stays valid — only the section number changed.
Section 115BAC (new tax regime) is now Section 202 under the new Income Tax Act 2025. Same slabs, same default regime — only the number changed.
Section 234F (late filing fee) is now Section 428 under the new Income Tax Act 2025. Same Rs. 5,000/Rs. 1,000 fee — only the number changed.
Section 139 (ITR filing) is now Section 263 under the new Income Tax Act 2025. Same due dates, same return types — only the number changed.
Section 44AB (tax audit) is now Section 63 under the new Income Tax Act 2025. Same limits, same process — only the section number changed.
If you pay tax under Section 44ADA, your advance tax works differently from everyone else. Instead of four quarterly payments, you get to pay everything in one single instalment by 15th March. Sounds simple. But missing this one deadline can cost you interest and penalties. This guide covers exactly what you need to do and …