index funds and etfs are both passive investment vehicles. both track a market index. both offer low-cost exposure to the market.
but they are not the same product. they trade differently. they cost differently. they suit different investors.
the terms are often used interchangeably. the distinction matters.
how they trade
the biggest difference is how they are bought and sold.
index funds. mutual funds. bought and sold directly from the fund house or through a platform. transacted at the end-of-day net asset value . all orders placed during the day get the same price. no real-time pricing.
etfs. traded on stock exchanges like shares. prices change throughout the day. buy and sell at market prices like any other stock . the investor can place limit orders. see the exact price at the time of the trade.
this difference changes behaviour. etfs offer flexibility. index funds offer discipline. an investor who panics during a midday drop cannot exit an index fund until the market closes.
costs and fees
index funds. expense ratios have come down significantly. a nifty 50 index fund typically charges 0.2% to 0.35% . there is no brokerage because the transaction is with the fund house.
etfs. expense ratios can be as low as 0.02% to 0.05% . but brokerage and transaction costs apply. there is a bid-ask spread to account for.
the total cost of an etf includes the expense ratio plus trading costs. a 0.02% expense ratio is not the full picture. the bid-ask spread can add 0.1% for less liquid etfs. the true cost may be higher than the expense ratio suggests.
minimum investment
index funds. sips can start from ₹500 or ₹100 . lumpsum investments are accepted. no demat account required .
etfs. the minimum investment is the price of one unit . no sip facility. a demat and trading account is mandatory . the investor needs to place a buy order during market hours.
for beginners with limited capital, index funds are easier to start with.
sip vs manual buying
index funds. sip is available. the money is deducted automatically. no manual intervention is required. the investor can set and forget.
etfs. no sip facility. the investor must log in and place a buy order every month. for many investors, this creates friction. it also creates a temptation to time the market.
the availability of sip makes index funds a better fit for salaried investors who want to build a disciplined investment habit.
tax efficiency
etfs have a structural tax advantage. they use an in-kind creation and redemption mechanism. no securities are sold. no taxable event is triggered for investors . this reduces capital gains distributions.
index funds may face capital gains distributions when investors redeem units. the fund manager may be forced to sell securities. this can trigger capital gains that get distributed to remaining shareholders.
in 2025, 52% of mutual funds distributed capital gains. only 7% of etfs did the same. the difference is structural.
tracking error
index funds. tracking error is usually small. but cash holdings can create drag. index funds must hold some cash for redemptions. this can cause slight underperformance.
etfs. tracking error is typically lower. the in-kind creation and redemption mechanism keeps the portfolio aligned with the index . cash drag is minimal.
side-by-side comparison
| factor | index fund | etf |
|---|---|---|
| how it trades | once daily, end-of-day nav | intraday, like a stock |
| expense ratio | 0.2% to 0.35% | 0.02% to 0.05% |
| sip availability | yes | no |
| demat account | not required | required |
| minimum investment | ₹500 sip, lumpsum accepted | price of one unit |
| tax efficiency | lower (cash redemptions trigger gains) | higher (in-kind redemptions) |
| tracking error | slightly higher (cash drag) | slightly lower |
which one to choose
choose an index fund if. starting with small amounts. wants the discipline of sips. does not have a demat account. prefers a set-and-forget approach.
choose an etf if. wants the lowest possible expense ratio. already has a demat and trading account. comfortable placing trades. wants real-time pricing and flexibility.
the practical answer for most beginners is index funds. they are simpler to start with. the sip facility removes the need to place trades every month. the demat requirement is not a barrier.
for investors who already have a demat account and are comfortable with trading, etfs offer slightly lower costs and better tax efficiency.
frequently asked questions
1. which is better for beginners: index funds or etfs?
index funds are often easier for beginners. they support sips. require no demat account. have no trading complexity. the sip facility makes them ideal for building a disciplined investment habit.
2. can index funds be held in a demat account?
yes. index funds can be held in demat or soa format. demat is not mandatory. soa format is simpler for most investors.
3. do etfs have lower costs than index funds?
etfs have lower expense ratios. but brokerage and bid-ask spreads add to the cost. the total cost of an etf may be higher than an index fund for smaller investments.
4. are etfs more tax-efficient than index funds?
yes. etfs use in-kind redemptions. this avoids triggering capital gains distributions. index funds may distribute capital gains when investors redeem units.
5. can an nri invest in both index funds and etfs?
yes. nris can invest in both through nre or nro accounts. index funds require nri kyc. etfs require a demat and trading account.
