Custom indexing, also known as direct indexing or separately managed accounts, is an investment strategy that involves purchasing the individual securities that make up an index, allowing investors to manage each holding separately. This personalized investment strategy offers various advantages over traditional index funds and ETFs, including the opportunity for tax optimization. This blog will explore what custom indexing is, and its tax impact on investing.

What is Custom Indexing?

In a custom indexing strategy, rather than buying shares of an index fund or ETF, investors buy the underlying stocks or other securities that make up a particular index. This strategy provides investors with more flexibility and control over their investment portfolios. They can personalize their portfolios by excluding certain companies or sectors and focusing on specific investment themes or ESG (Environmental, Social, and Governance) criteria.

Tax Advantages of Custom Indexing, Tax-Loss Harvesting

One of the most significant tax advantages of custom indexing is the opportunity for tax-loss harvesting. When individual securities in the portfolio decline in value, investors can sell them to realize a capital loss. These losses can offset capital gains elsewhere in the portfolio, reducing the investor’s overall tax liability.

In a traditional index fund or ETF, investors do not have control over the individual holdings in the fund, limiting their ability to use tax-loss harvesting as a strategy to optimize their tax situation.

Gifting and Estate Planning

Custom indexing can also provide advantages for gifting and estate planning. By holding individual securities, investors can choose specific lots to gift or bequeath, allowing for additional control and tax efficiency in wealth transfer strategies.

Lower Tax Impact from Redemptions

In custom indexed portfolios, investors do not have to worry about the tax impact of other investors’ redemptions, as they would in a mutual fund. In a mutual fund, when other investors sell their shares, the fund may need to sell securities to meet those redemptions, potentially generating capital gains distributions that are taxable to all the fund’s shareholders, regardless of whether they sold shares.

Potential Drawbacks

While custom indexing offers several tax advantages, it is important to note the potential downsides. Custom indexing may require a larger investment minimum compared to traditional index funds and ETFs, and may involve higher trading and management fees. It may also be more complex to manage, necessitating the involvement of a knowledgeable financial advisor or investment manager.


Custom indexing is an innovative investment strategy that can provide investors with greater control over their portfolios and enhanced opportunities for tax optimization. However, like all investment strategies, it is essential to weigh the potential benefits and drawbacks, and consider one’s financial situation, investment goals, and risk tolerance. Consulting a financial advisor or tax professional can help investors determine whether custom indexing is the right strategy for them.

Sources: openai.com 

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