Best Low-Cost Index Funds for 2026: 10 Top Picks
Compare the best low-cost index funds for 2026, from Nifty 50 to S&P 500. See expense ratios, tax notes, and our top picks for long-term investors.
Frequently asked questions
What "low-cost" actually means For a plain vanilla index fund, anything above 0.30 percent expense ratio deserves a second look. Many now sit between 0.05 and 0.20 percent. ETFs often go lower, thoug
2. What is the total expense ratio, including any fund-of-fund layer?
Are index funds really better than active funds?
Not always, but usually, over long periods. Most active funds fail to beat their benchmark after fees. [Index funds](/blog/gen-z-investing-5-funds-winning-over-young-indians) guarantee you get the market return minus a small cost, which is a strong starting position.
How much should I put in a single index fund?
For a Nifty 50 or S&P 500 fund, one is enough for the core. You do not need five funds tracking the same index. Add a second only for genuine diversification, such as international exposure.
Can I lose money in an index fund?
Yes. If the market falls, your fund falls with it. Index funds remove manager risk, not market risk. The only real protection is a long holding period and the discipline to keep investing when prices drop.