What Is STP in Mutual Fund
What is STP in mutual fund terms: a standing instruction that moves a set amount from one scheme into another, on a fixed date, until you stop it. SEBI describes it as a facility to transfer the invested amount periodically “from one scheme to another schemes launched by the same Mutual fund by giving a single instruction”.
The part most pages skip is the cost. Each transfer is a redemption from the source scheme, so a twelve-month plan creates twelve separate taxable events rather than one. On a ₹12 lakh plan that arithmetic is worked out below, and it is not trivial.
Dhanvantri Capital Services Private Limited, known as Dhanvantree, is an AMFI-registered mutual fund and Specialised Investment Fund distributor, ARN-194216, and a distributor of portfolio management services registered with APMI, APRN10201. This page is general information, not a computation of your position.
What is STP in a mutual fund, mechanically
Two transactions, repeated. On each transfer date the fund house redeems units from the source scheme and uses the proceeds to buy units in the target scheme at that day’s applicable NAV. You give the instruction once, and it runs on its own until you stop it or the source runs dry.
The usual setup is a lump sum parked in a liquid or short-duration scheme, moving into an equity scheme over several months. The money stays invested while it waits rather than sitting idle, though a liquid scheme is still a market-linked product and its return is not contracted.
SEBI’s condition is the one people get wrong: both schemes must be run by the same mutual fund. You cannot transfer from one fund house into another. To change fund house you redeem, wait for the money, and invest afresh.
What is STP in a mutual fund: the three types
Fund houses offer the same mechanism in three shapes, and what separates them is the rule that sets the amount moved on each date. One is predictable, one depends on how the source scheme performed, and one is decided by the fund house rather than by you.
Fixed STP. The same rupee amount every time. The common choice, and the one the example below uses.
Capital appreciation STP. Only the gain made in the source scheme is moved. The original capital stays where it is. In a flat month nothing moves at all, so the transfer amount is unpredictable.
Flexi STP. The amount varies with a rule set by the fund house rather than by you. The rule itself is not standard across the industry, so read the scheme document for the formula rather than assuming it works the way another fund house’s version does. Availability also differs.
What STP in a mutual fund costs on your tax return
Every transfer is a redemption, and the tax follows from that fact alone. Almost no page on this subject puts a number on it, so the figures below are worked through in full. The cost is real, it grows as the plan runs, and it is the main thing to weigh before choosing a length.
Where the source is a liquid, overnight or short-duration scheme, it will usually hold more than 65% in debt and money market instruments, measured on annual average daily closing figures. A scheme meeting that test is a specified mutual fund, and its gains are charged at your slab rate with no holding period to wait out and no concessional rate.
Two conditions sit on that. The treatment applies to units acquired on or after 1 April 2023; units bought before that date are outside it. And the 65% test turns on what the scheme actually holds, so check the scheme’s own classification rather than assuming from its name. The definition itself was rewritten with effect from 1 April 2026; the slab-rate treatment of these funds did not begin then.
Illustration, not a quotation. ₹12,00,000 placed in a liquid scheme returning 6.50% a year, with ₹1,00,000 transferred into an equity scheme every month for twelve months.
| Transfer | Gain booked in that transfer |
|---|---|
| Month 1 | ₹539 |
| Month 3 | ₹1,608 |
| Month 6 | ₹3,189 |
| Month 9 | ₹4,746 |
| Month 12 | ₹6,277 |
| All twelve | ₹41,203 |
₹43,963 is left in the liquid scheme at the end, because it kept earning while the balance ran down.
| Your slab | Tax on the STP gains |
|---|---|
| 30% plus cess | ₹12,855 |
| 20% plus cess | ₹8,570 |
| 5% plus cess | ₹2,143 |
Three things follow.
The gain rises with each transfer, because the units being redeemed have been held longer. The last transfer books more than ten times the gain of the first. Against that ₹41,203 of gain, the ₹60 of stamp duty is noise.
Twelve transfers mean twelve separate disposals to account for, not one. Each can produce a gain or a loss, depending on how the source scheme moved between the purchase and that transfer, and each has to be accounted for when you work out your capital gains for the year.
None of this is a reason against an STP. It is the price of keeping the money invested while it waits. What the number does tell you is that a longer plan is not free, and that the comparison worth making is against whatever you would otherwise have done with the lump sum.
For how the gains are classified, see short-term capital gain tax on mutual funds.
Exit load on the source scheme
Exit load is charged only where the units leaving are still inside the source scheme’s load period, which on a monthly plan is usually not the case after the first transfer. The timing of that first transfer is therefore the only part worth checking before you set the instruction up.
Liquid schemes carry a graded exit load for redemptions made within seven days, which SEBI directed AMFI to put in place. Scheme documents filed with SEBI set out the daily figures, typically 0.0070% on day one falling to 0.0045% by day six, and nil from day seven onwards. Your own scheme’s document is what governs.
A monthly STP transfers roughly thirty days apart, so after the first month every unit leaving is well past day seven. The load matters for a weekly STP, or for a first transfer scheduled too soon after the money arrives.
The target scheme is a purchase, so no exit load applies on that leg. Its own exit load starts counting from the day each set of units is bought, which is covered below.
Two small charges complete the picture, and both are worth naming because a plan repeats them.
Stamp duty of 0.005% on each purchase. Every transfer buys units, so every transfer attracts it. On ₹1,00,000 that is ₹5 a time, and ₹60 across a twelve-month plan. Not a reason to do anything differently, but it is a real cost that lists of STP benefits leave out.
Securities transaction tax on the redemption leg, only if the source is equity-oriented. At 0.001% of the amount redeemed. The usual source for an STP is a liquid or short-duration scheme, which is not equity-oriented, so in the common setup this does not arise at all.
Which day's NAV each leg gets
Both legs follow the ordinary cut-off rules, and those rules are not identical for the two schemes involved. The redemption side and the purchase side are each measured against their own scheme’s deadline, which is why the transfer date you pick is the one thing that matters here.
The redemption from a liquid or overnight scheme follows that scheme’s cut-off. The purchase into an equity scheme follows the 3.00 pm equity cut-off and the rule that funds must be available for utilisation before it.
The fund house processes both on the transfer date, because the money never leaves the mutual fund. That does not guarantee the same date’s NAV on both sides: The purchase into an equity scheme is not decided by the 3.00 pm cut-off alone: the funds must also be available for utilisation before it. Both conditions have to be met for that day’s NAV to apply to the units you receive.
What the units you buy inherit
Each transfer buys a fresh set of units in the target scheme, and every set carries its own purchase date rather than inheriting the date the plan began. That single detail decides two separate things later on, and both of them surprise people who assume the plan is treated as one investment.
That date governs two things later. The target scheme’s exit load period starts from it. And the holding period that decides short-term against long-term runs from it, not from the day you first started the plan.
So a twelve-month STP into an equity scheme leaves you with twelve sets of units of twelve different ages. When you eventually redeem, the oldest go first, which usually works in your favour. That mechanism is set out in partial withdrawal.
When an STP adds nothing
The mechanism solves exactly one problem: a lump sum you already hold and do not want to commit to a volatile scheme on a single day. Where that is not the problem you have, it adds taxable events, statement rows and administration without adding anything in return.
The money arrives monthly anyway. A salary or rent going into an equity scheme each month is already spread over time. Routing it through a liquid scheme first adds taxable events for no reason.
The target scheme is not volatile. Moving from one debt scheme into another over six months achieves very little, and each transfer is still taxed.
The amount is small. On ₹50,000 the mechanics, the twelve statement rows and the twelve gain calculations cost more attention than the spread is worth.
You want to change fund house. An STP cannot do it. Both schemes must belong to the same mutual fund.
Investing the lump sum at once is also a legitimate choice. An STP buys a smoother entry, not a higher return, and whether a smoother entry is worth the extra tax events depends on the size of the sum and on how you would feel about a sharp fall the week after investing it. The choice is yours.
Frequently Asked Questions
A standing instruction that moves a fixed amount from one scheme into another scheme of the same fund house on a set date, repeatedly, until you stop it.
No. SEBI’s description is explicit that the transfer is into “another schemes launched by the same Mutual fund”. Changing fund house means redeeming, waiting for the proceeds, and investing again.
Yes. Each transfer is a redemption from the source scheme and produces a capital gain or loss. A twelve-month plan produces twelve of them. Where the source scheme qualifies as a specified mutual fund and the units were acquired on or after 1 April 2023, each gain is taxed at your slab rate regardless of how long the units were held. Units bought before that date follow the ordinary rules for the scheme.
Only on units still inside the source scheme’s load period. On a monthly plan that is usually just the first transfer, if it is scheduled within days of the money arriving. Liquid schemes charge a graded load only within the first seven days.
They answer different questions. A SIP invests money as it arrives, month by month. An STP spreads out a lump sum you already hold. If you have the lump sum, an STP applies; if the money arrives monthly, a SIP does.
There is no regulatory minimum or maximum, and fund houses set their own. Longer plans spread the entry further and book more taxable events along the way. The trade-off is between those two, and it is yours to make.
Yes. It is an instruction, not a lock-in. Stopping it leaves whatever remains in the source scheme, where it carries on as an ordinary holding.
No. The redemption and the purchase are handled inside the same fund house, which is why the instruction runs on its own and why both schemes must belong to it.
Disclaimer: The views expressed here are of the author and do not reflect those of Dhanvantree. Mutual funds are subject to market risks, please read the scheme documents carefully before investing.