The law
Income-tax Act 1961, Sec 70(2) (now Sec 108)
Loss on a short-term capital asset can be set off against gain on any other capital assetSource
Income-tax Act 1961, Sec 70(3) (now Sec 108)
Loss on a long-term capital asset can be set off only against long-term capital gainSource
Income-tax Act 1961, Sec 71(3) (now Sec 109)
Capital loss cannot be set off against income under any other headSource
Income-tax Act 1961, Sec 74(1) (now Sec 111) and (2)
Unabsorbed capital loss is carried forward and set off only against capital gains, for not more than 8 assessment yearsSource
Income-tax Act 1961, Sec 80 (now Sec 121)
Loss under Sec 111 (old Sec 74) can be carried forward only if determined in a return filed within the time allowed by Sec 263 (old Sec 139(3))Source
Income-tax Act 2025, Sec 536(2)(m) and (n)
Losses of years before 1 April 2026 keep their character and are set off under the 2025 Act as the 1961 Act allowed; a late loss return for AY 2024-25 that failed Sec 263 (old Sec 139(3)) cannot be carried forwardSource
Income-tax Act 1961 to 2025 mapping
Sec 70 becomes Sec 108, Sec 71 becomes Sec 109, Sec 74 becomes Sec 111, Sec 139 becomes Sec 263Source
Income-tax Act 1961, Sec 115BBH (now Sec 194)
Loss on virtual digital assets cannot be set off against any other income, including capital gainsSource
Government fee
No government fee. Source: https://www.incometax.gov.in/iec/foportal/help/all-topics/e-filing-services/file-itr-2-online/itr-2-UM
Late fee or penalty
A return filed after the Sec 263(1) (old Sec 139(1)) due date loses the carry forward of the year's capital loss (Sec 121, old Sec 80). Source: https://www.incometaxindia.gov.in/w/section-80-7 . Fee under Sec 428 (old Sec 234F) up to ₹5,000 (₹1,000 if income up to ₹5 lakh). Source: https://www.incometaxindia.gov.in/w/section-234f