Two plans of the same mutual fund hold the same portfolio, run by the same manager, following the same strategy — and leave you with meaningfully different amounts of money.
The difference is the cost of distribution. A regular plan's expenses include distribution costs; a direct plan pays no distributor commission.
Most articles on this stop at "direct is cheaper." This one uses a real fund's actual published numbers, and finds two things that are not obvious: the expense ratio you see quoted is not the one you pay, and the gap between the plans is wider than the headline figures suggest.
The real numbers
HDFC Mutual Fund publishes a daily expense ratio disclosure for every scheme. Here is HDFC Flexi Cap Fund on 16 September 2026, taken directly from it.
| Component | Regular | Direct |
|---|---|---|
| Base Expense Ratio | 1.08% | 0.57% |
| Brokerage | 0.02% | 0.02% |
| Transaction cost | 0.01% | 0.01% |
| Statutory levies (incl. GST) | 0.26% | 0.17% |
| Total TER | 1.37% | 0.77% |
Look up this fund on almost any investment platform and you will see 0.57% for the direct plan. That is the Base Expense Ratio. What you actually pay is 0.77% — a third more.
Since April 2026, under the SEBI (Mutual Funds) Regulations, 2026, the BER excludes statutory levies, brokerage and transaction costs. Those are disclosed separately and charged on top. The headline number is now a component, not a total.
The gap is wider than it looks
Compare the two plans on BER alone and the difference is 0.51 percentage points. Compare the totals and it is 0.60 points.
The reason is in the levies row: 0.26% for regular against 0.17% for direct. GST is charged on the management fee, so a plan with a higher fee also carries a higher levy. The two costs move together, and the headline figure captures only one of them.
That 9 basis point discrepancy sounds academic. On the SIP below it is worth ₹70,944.
What the choice is worth
₹25,000 a month for fifteen years, at an assumed 12% gross annual portfolio return, using the actual total TERs above.
| Regular | Direct | |
|---|---|---|
| Total TER | 1.37% | 0.77% |
| Net return | 10.63% | 11.23% |
| Corpus | ₹1,10,79,607 | ₹1,17,23,210 |
| Post-tax | ₹1,02,40,508 | ₹1,08,00,443 |
Difference: ₹5,59,935.
One choice, on one form, once. Same portfolio, same manager, same holdings.
Run the same calculation using only the quoted BER figures — 1.08% and 0.57% — and you get ₹4,88,991. The real answer is ₹70,944 higher. Anyone comparing plans on the numbers shown on a platform is understating what they stand to gain.
Why a small percentage becomes a large number
The fee is charged against the value of the scheme's assets, not against what you contributed. As the portfolio grows, the rupee cost of the same percentage grows with it. The fee compounds alongside the money, which is why six-tenths of one percent turns into five and a half lakh over fifteen years.
What SEBI changed in April 2026
The framework above is new, and worth understanding before you compare any two numbers.
Under the SEBI (Mutual Funds) Regulations, 2026 — approved by the SEBI Board on 17 December 2025 and effective 1 April 2026 — the expense ratio was restructured as a Base Expense Ratio that excludes statutory levies. Caps also came down across the board for open-ended equity schemes:
| Scheme AUM | Old cap | New BER cap |
|---|---|---|
| Up to ₹500 Cr | 2.25% | 2.10% |
| ₹45,000–50,000 Cr | 1.10% | 1.00% |
| Above ₹50,000 Cr | 1.05% | 0.95% |
Index funds and ETFs fell from 1.00% to 0.90%, equity fund-of-funds from 2.25% to 2.10%, close-ended equity schemes from 1.25% to 1.00%. Brokerage caps were roughly halved, and the extra 5 basis points schemes with an exit load could charge was removed.
Slabs apply progressively, so a large fund's effective cap is a weighted blend. HDFC Flexi Cap is around ₹1.14 lakh crore, which is why its ratios sit as low as they do. A smaller actively managed fund will show a wider gap than the one modelled here — which makes ₹5,59,935 a conservative figure for most investors, not a generous one.
If you're already in a regular plan
This is where the calculation gets more interesting.
Switching is not a transfer. You redeem regular plan units and purchase direct plan units, and that redemption creates a taxable capital gain in the year it happens — a liability you would not otherwise have faced until the end.
Does the lower fee over the remaining years outweigh the tax crystallised now?
| Switch after | Tax at switch | Yrs in direct | vs staying |
|---|---|---|---|
| 3 years | ₹5,064 | 12 | +₹5,29,417 |
| 5 years | ₹46,922 | 10 | +₹4,04,520 |
| 7 years | ₹1,17,035 | 8 | +₹2,69,720 |
| 10 years | ₹2,90,170 | 5 | +₹94,631 |
| Never | — | 0 | — |
Staying regular the whole way gives ₹1,02,40,508 post-tax. Switching at three years gives ₹1,07,69,925; at ten years, ₹1,03,35,139.
Switching comes out ahead at every point tested — even ten years in, after ₹2.90 lakh of tax.
But watch the decay. At three years the tax is trivial and you capture almost the whole benefit. At ten years you keep about a sixth of it. The tax bill grows as your gains grow, while the runway for the lower fee to compound shrinks. Both move against you.
The conclusion isn't "switching is always right." It's that the answer stays yes, and gets less emphatically yes every year you wait.
The tax is prepaid, not lost
Worth understanding, because the intuitive way to think about this is wrong.
You might ask how long the lower fee takes to recover the tax you just paid. Run that on portfolio value alone and the answer looks bad: switching at ten years, the direct plan's balance never catches the regular plan's within the remaining five years.
Yet the post-tax outcome is ₹94,631 better. Both are true.
The tax you pay at the switch is not a fee you hand over and never see again. It buys you a higher cost basis. Every rupee of gain settled now is a rupee not taxed at the end. On a post-tax basis — the only basis that matters, since you pay that tax eventually either way — the switch is ahead almost immediately.
The real cost is narrower than it looks: not the tax itself, but the compounding lost on money paid to the tax office years earlier than necessary.
Two ways to soften it
Switch new money first. Stop the regular SIP, start a direct one. No tax event, no cost, and everything from here compounds at the lower fee. The existing corpus can follow later.
Move the corpus in tranches. Redeeming across financial years lets each year's gain draw on its own ₹1.25 lakh Section 112A threshold instead of stacking the whole gain into one year. Note the threshold is aggregate across all your eligible Section 112A gains that year, not per fund — and with a SIP, each tranche's tax depends on which units are sold and how long they have been held.
Check your scheme's exit load terms before either.
What the commission buys
To be fair about it: a regular plan pays for distribution, and SEBI's own framing is that a regular plan involves intermediary guidance while a direct plan leaves the research and transactions to you. An adviser who talks you out of selling in a crash has earned more than 0.60% a year.
The question is whether you are getting that.
| Direct | Regular |
|---|---|
| Lower expense ratio | Higher expense ratio |
| No distributor commission | Includes distribution costs |
| You handle selection and transactions | May include guidance and servicing |
| Higher net return, all else equal | Can be worth it when the service changes your decisions |
If someone genuinely advises you, the fee may be fair. If a relationship manager sold you a fund in 2019 and you haven't heard from them since, you are paying a trail commission for nothing, every year, compounding.
How to check your own fund
The plan you hold. The fund name tells you — "Direct Plan" or "Regular Plan". If it doesn't say direct, it's regular. Your Consolidated Account Statement from CAMS or KFintech lists every folio with its plan. The two have different ISINs and different NAVs; the direct plan normally shows the higher NAV, because less has been deducted over time.
On 18 September 2026, HDFC Flexi Cap Fund Growth stood at ₹2,035.9670 in the regular plan and ₹2,242.7570 in the direct plan. Same scheme, same portfolio, same day.
What you actually pay. Every AMC publishes a daily TER disclosure showing BER, brokerage, transaction costs and levies separately, for both plans. That is the only place you will see your real total. Do not rely on the single figure a platform shows you — as above, it is the BER, and it is not the whole cost.
The order of operations
Across the three articles so far, on the same ₹25,000 SIP:
| Lever | Worth | Effort |
|---|---|---|
| Direct instead of regular | ₹5,59,935 | One decision |
| Tax harvesting | ₹2,13,735 | 14 annual sittings |
| Switching after 10 years | ₹94,631 | One decision, taken late |
Plan selection is worth roughly 2.6 times what harvesting is worth, for a fraction of the effort. Which suggests where the attention goes first.
The SIP Calculator lets you set the expense ratio — run 1.37% against 0.77% and watch the gap open.
Sources and assumptions
Primary data
- Expense ratios: HDFC Mutual Fund, Total Expense Ratio of Mutual Fund Schemes, TER report dated 16 September 2026, HDFC Flexi Cap Fund row. Regular plan BER 1.08%, brokerage 0.02%, transaction cost 0.01%, statutory levies 0.26%, total 1.37%. Direct plan 0.57%, 0.02%, 0.01%, 0.17%, total 0.77%. Published at hdfcfund.com statutory disclosures — the file is replaced monthly.
- NAVs: HDFC Mutual Fund published NAV page, HDFC Flexi Cap Fund Growth, 18 September 2026.
- Regulatory framework: SEBI (Mutual Funds) Regulations, 2026, approved by the SEBI Board on 17 December 2025, effective 1 April 2026. BER excludes statutory levies; revised caps as tabled above. See SEBI Board meeting release PR No. 84/2025.
- Direct plans introduced by SEBI with effect from 1 January 2013.
Model
- ₹25,000 monthly, 180 instalments at the start of each month, total contribution ₹45,00,000.
- 12% assumed gross annual portfolio return, compounded monthly. Not a forecast, and not a claim about any index.
- Total TERs of 1.37% and 0.77% held constant for fifteen years. In reality they change — HDFC's own disclosure is republished monthly.
- TER modelled as a straight reduction from the assumed gross return. Actual scheme expenses accrue through NAV daily, so real results differ.
- Section 112A LTCG at 12.5% on aggregate eligible gains above the ₹1.25 lakh annual threshold, plus 4% cess. No surcharge assumed, and no other Section 112A gains or losses in any year.
- Switch modelled as full redemption of the regular corpus after N years, tax settled on the gain, net proceeds reinvested in the direct plan, SIP continuing there.
- Exit load assumed nil. STT, stamp duty on switch-in (currently 0.005%) and NAV movement between redemption and repurchase are not modelled; their combined effect is small relative to the differences shown.
- No change in tax law across the fifteen years. Inflation not considered.
HDFC Flexi Cap Fund is used because its AMC publishes the underlying data openly, not as a recommendation. This article explains arithmetic. It is not investment advice and recommends no fund or scheme.