SEBI just rewrote mutual fund category rules in 2026 — what changed for your equity and debt funds

On 26 February 2026, the Securities and Exchange Board of India issued circular HO/24/13/15(2)2026-IMD-RAC4/I/5764/2026 on the Categorization and Rationalization of Mutual Fund Schemes. The provisions were folded into the Master Circular for Mutual Funds, and the detailed category definitions that investors had read inside the SEBI (Mutual Funds) Regulations were relocated into the circular itself. The move builds directly on the original framework SEBI laid down in October 2017, which first sorted the industry into clean equity, debt and hybrid buckets.

If you hold an equity or debt fund, the headline question is simple: did the rules that decide where your money can actually go change? The short answer is that the 2026 action is a rationalisation and housekeeping exercise that consolidates the definitions in one place, rather than a teardown of the allocation floors that have governed schemes since 2017. But that consolidation is a good moment to re-read what your fund's category actually commits it to, because the gap between two similar-sounding labels such as Flexi Cap and Multi Cap can mean a 25% forced exposure to volatile mid and small caps. This Midday Pulse compares the two most-confused equity categories side by side, walks through the tax treatment that applies in FY 2025-26, and tells you which investor profile each one suits.

What the 2026 Rationalisation Actually Changed

The 2026 circular keeps the architecture of the 2017 categorization framework intact: equity schemes still sit in defined buckets such as large cap, mid cap, small cap, Flexi Cap, Multi Cap and ELSS, while debt and hybrid schemes keep their own duration-based and allocation-based categories. The substantive shift is structural. By moving the definitions from the Regulations into the Master Circular, SEBI can update category rules through circular amendments rather than the slower regulation-amendment route, which is why it is filed under rationalisation.

The one-scheme-per-category rule survives unchanged. An asset management company may still run only a single scheme in each category, with the long-standing exceptions for ELSS, index funds and ETFs tracking different indices, fund-of-funds with different underlying schemes, and sectoral or thematic funds. That rule is the reason your fund house cannot launch three near-identical large cap funds, and it remains the backbone of the framework consolidated in 2026. Below is the equity map as it stands, with the allocation floor each category must respect.

The market-cap boundaries themselves come from AMFI, not the AMC. Per the AMFI classification, the 1st to 100th company by full market capitalisation are large caps, the 101st to 250th are mid caps, and the 251st company onward are small caps. AMFI reviews this list every six months, so a stock can migrate from mid cap to large cap between two lists, and funds get a rebalancing window to comply.

Side-by-Side Comparison: Flexi Cap vs Multi Cap

Flexi Cap and Multi Cap are the categories investors confuse most often, and the 2017-to-2020 history explains why. Multi Cap is the older label, recast on 11 September 2020 when SEBI raised its minimum equity to 75% and imposed a floor of 25% each in large, mid and small caps. To give fund houses a free-hand alternative, SEBI created the Flexi Cap category on 6 November 2020, requiring only 65% in equity with no cap-wise sub-limit. The two have lived side by side ever since, and the 2026 circular leaves both definitions standing.

The practical difference is risk. A Multi Cap fund must keep at least a quarter of the portfolio in small caps and a quarter in mid caps at all times, which lifts return potential in a rising market but deepens drawdowns when small caps correct. A Flexi Cap manager can rotate the same money into large caps during a frothy small-cap phase, so the category typically rides out volatility with shallower falls. Neither is universally better, but the 25% small-cap floor is the single fact that should drive your choice. If you are mapping a 10-year or 15-year horizon, model both paths in our SIP calculator before committing, and use the lumpsum calculator if you are deploying a one-time corpus.

One more number matters: the expense ratio. Both categories sit inside SEBI's total expense ratio slabs, so a smaller fund can legally charge more than a large one. A 0.75% difference in expense ratio on a Rs 10 lakh corpus compounding for 15 years can quietly erode more than a year's worth of returns, which is why the category label is only half the decision.

Tax Treatment

Tax is decided by what is inside the fund, not by its category name. A scheme that holds more than 65% in domestic equity is an equity-oriented fund for tax purposes, so both Flexi Cap and Multi Cap qualify. Per the rules in force from 23 July 2024 and published by the Income Tax Department, short-term gains on units held for 12 months or less are taxed at 20%, and long-term gains on units held beyond 12 months are taxed at 12.5% on the amount exceeding Rs 1,25,000 in a financial year, with no indexation benefit.

The debt side changed more sharply. For debt-oriented schemes bought on or after 1 April 2023, the Finance Act 2023 removed both the 20%-with-indexation long-term rate and the indexation benefit entirely. Gains are now added to your income and taxed at your slab rate no matter how long you hold, which puts a 30%-bracket investor at a real disadvantage versus equity funds. That single change, layered on top of the 12.5% equity LTCG rate, has pushed many goal-based investors toward equity-oriented categories for horizons beyond three years. The Rs 1,25,000 annual exemption on equity LTCG also makes disciplined STCG versus LTCG planning worth the effort, since harvesting gains up to the exemption each year is legal and resets your cost base.

Who Should Pick Which

The choice between Flexi Cap and Multi Cap comes down to how much forced mid and small cap exposure you can stomach, and over what horizon. Use the profiles below as a starting filter, then confirm the specific scheme's actual portfolio rather than trusting the label alone.

Choose Flexi Cap if you are a first-time equity investor or have a horizon under seven years. The absence of a small-cap floor means the manager can defend your capital by shifting to large caps in a correction, and the 65% equity minimum still keeps it firmly equity-oriented for the 12.5% LTCG rate. It is the cleaner core holding for a single-fund equity allocation.

Choose Multi Cap if you have a horizon beyond ten years, an existing emergency buffer, and the temperament to sit through 30%-plus drawdowns. The mandated 25% each in mid and small caps is a structural bet on India's broader market, and over long cycles that bet has historically rewarded patient investors, though past performance never guarantees the next cycle. If you already hold a dedicated small cap fund, a Multi Cap allocation on top can over-concentrate you in the 251st-onward market-cap segment, so check your combined exposure first.

For tax-saving goals, neither beats ELSS, which carries the same 80% equity floor as a large cap fund, a three-year lock-in, and Section 80C eligibility in the old regime. And if your goal is genuinely conservative, a Flexi Cap or Multi Cap fund is the wrong tool entirely; a debt allocation or a guaranteed scheme such as PPF, which you can project in our PPF calculator, or the NPS for retirement, fits better. Match the category mandate to the goal, not the other way round.

The takeaway from the 2026 rationalisation is not panic, it is housekeeping. SEBI consolidated the rulebook; your job is to confirm your scheme still does what you signed up for. Re-read the category line in your fund's scheme information document, check the 25% small-cap floor question, and verify the fund's actual cap allocation in its latest monthly portfolio disclosure before your next SIP instalment.

FAQ

What did the SEBI 26 February 2026 circular actually change?

The circular HO/24/13/15(2)2026-IMD-RAC4/I/5764/2026, dated 26 February 2026, is a categorization and rationalization measure. Its provisions were incorporated into the Master Circular for Mutual Funds, and the detailed category definitions were moved out of the SEBI (Mutual Funds) Regulations into the circular. It builds on the original October 2017 framework that defines the equity, debt and hybrid scheme buckets.

What is the difference between a Flexi Cap and a Multi Cap fund?

A Flexi Cap fund must hold at least 65% in equity but the manager is free to move across large, mid and small caps with no sub-limit. A Multi Cap fund must hold at least 75% in equity with a minimum of 25% each in large, mid and small caps. Multi Cap therefore carries a built-in mid and small cap floor that Flexi Cap does not.

Are equity mutual fund gains taxed at 12.5%?

Long-term capital gains on equity-oriented funds (more than 65% in domestic equity) held for over 12 months are taxed at 12.5% on gains above Rs 1,25,000 in a financial year, with no indexation, from 23 July 2024. Short-term gains on units held for 12 months or less are taxed at 20%.

How are debt mutual funds taxed after the 2023 rule change?

For debt-oriented schemes (35% or less in equity) bought on or after 1 April 2023, the Finance Act 2023 removed the long-term capital gains benefit and indexation. Gains are added to your income and taxed at your applicable slab rate, regardless of how long you hold the units.

Can a fund house run two schemes in the same category?

No. Under the categorization framework now housed in the Master Circular, an asset management company may offer only one scheme per category. The exceptions are ELSS, index funds and ETFs tracking different indices, fund-of-funds with different underlying schemes, and sectoral or thematic funds.

How are large, mid and small cap stocks defined?

AMFI publishes the list. The 1st to 100th company by full market capitalisation are large caps, the 101st to 250th are mid caps, and the 251st company onward are small caps. The list is reviewed every six months, so a stock can migrate between buckets.

Does the 2026 circular change my existing SIPs?

The circular is a rationalisation and consolidation of definitions rather than a change to the 25%, 65% or 80% allocation floors that already governed your scheme. Your existing systematic investment plans continue, but it is worth re-reading your scheme's category to confirm its mandate still matches your goal.