Which feature primarily drives tax efficiency in index funds?

• A. Maximize exposure to a single asset
• B. Ensure tax-exempt status
• C. Reduce risk through exposure to different asset classes
• D. Lower turnover and fewer capital gains distributions

Answer: (D)

Tax efficiency in index funds comes from low turnover that minimizes capital gains distributions. Because an index fund simply tracks a benchmark, it trades only to reflect changes in the index, not to pursue frequent profits. This means fewer taxable events for shareholders, so investors owe less tax each year. Lower turnover directly reduces the capital gains that get distributed to investors, which is what tax efficiency is all about.

The other options don’t drive tax efficiency. Maximizing exposure to a single asset would raise risk and doesn’t address taxes. Tax-exempt status isn’t automatic for ordinary index funds (that applies to specific bond funds like municipal bonds). Diversification across asset classes reduces risk, not taxes, and can complicate tax treatment depending on the assets.