The law
Income-tax Act 1961, Sec 50AA(a) (now Sec 76)
Gain on units of a Specified Mutual Fund acquired on or after 1 April 2023, or on a market linked debenture, is deemed short-term, whatever the holding periodSource
Income-tax Act 1961, Sec 50AA (now Sec 76) computation
Gain = redemption or sale value minus cost minus transfer expenses; no indexation; no deduction for STTSource
Income-tax Act 1961, Sec 50AA (now Sec 76) Explanation (Specified Mutual Fund)
A fund investing more than 65% of its total proceeds in debt and money market instruments, or a fund investing 65% or more in such funds, measured on the annual average of daily closing figuresSource
Specified Mutual Fund definition, effective date
AMC reckoner states the 65% debt test applies from 1 April 2025 (earlier test was equity of not more than 35%)Source
Income-tax Act 1961, Sec 2(42A) and Sec 112 (now Sec 2(101) and 197)
Units not covered by Sec 76 (old Sec 50AA; bought before 1 April 2023) are long term after 24 months (12 months if listed) and taxed at 12.5% without indexation for transfers on or after 23 July 2024Source
AMC tax reckoner FY 2025-26
Units bought before 1 April 2023: long term after 24 months (12 months for listed units), 12.5%Source
Income-tax Act 2025, Sec 76
From tax year 2026-27, the same rule continues as Sec 76, overriding Sec 2(101) (holding period) and Sec 72 (computation)Source
Income-tax Act 1961, Sec 47(xviii) (now Sec 70) and (xix)
Switch on consolidation of two schemes, or of plans within a scheme, is not a transfer; an ordinary switch between funds is a transferSource
Government fee
No government fee. Short-term gain is added to total income and taxed at slab rates; long-term gain on pre-April 2023 units at 12.5% plus surcharge and cess. Source: https://incometaxindia.gov.in/Tutorials/15-%20LTCG.pdf
Late fee or penalty
Sec 428 (old Sec 234F) fee of ₹5,000 (₹1,000 if total income does not exceed ₹5 lakh) for a return after the due date. Source: https://www.incometaxindia.gov.in/w/section-234f . Loss carry forward lost on a belated return (Sec 121, old Sec 80). Source: https://www.incometaxindia.gov.in/w/section-80-7