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Tax Efficient Investing: Turning an Investor’s Tax Return Into a Plan

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Jeremy Milleson

Director, Investment Strategy

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While the tax conversation may seem to end on April 15, we think tax season could be the time to start a better approach to tax planning—a natural moment to reflect on how investments are managed, looking for ways to help reduce tax drag and increase the potential for after-tax performance going forward.


When tax pain is fresh, planning becomes real


During the strong markets of recent years, tax impacts may have faded into the background. But when investors recognize that the taxes they owe on realized gains or capital gains distributions can reduce their net return, then their attention tends to sharpen. 


For many investors, each tax season can bring a familiar sense of frustration. After a year of market moves and portfolio decisions, the tax bill makes the impact of taxes feel very real—and often very personal. That’s why this can be a particularly effective time for advisors to introduce clients to tax-aware investment approaches like direct indexing. Investors are already thinking about taxes, and the connection between portfolio decisions and after-tax outcomes is front and center.


Rather than focusing on last year’s tax bill alone, we view tax season as an opportunity to ask a more constructive question: How can we seek to improve the investor’s after-tax outcome next year and beyond?



What a tax return can reveal about an investor’s portfolio


A completed tax return often highlights investment characteristics that aren’t always obvious during the year. For example:

  • Realized capital gains may indicate frequent trading, rebalancing or the impact of capital gains distributions.
  • Portfolio turnover can be tax inefficient, reducing the net return even when pre-tax performance looks strong.
  • Tax drag, or the gap between pre-tax and after-tax returns, can quietly compound over time in taxable accounts.

These insights can serve as a diagnostic tool—not necessarily pointing to mistakes, but rather revealing where a portfolio may not be optimized for after-tax efficiency.


Consider the benefits of active tax management

Turning April 15 into a planning moment


Once tax returns are filed, investors often feel a sense of closure. But that moment can be reframed as a reset for the new tax year.


This is where direct indexing can enter the conversation. By holding individual securities rather than a pooled vehicle, direct indexing allows for greater flexibility in managing gains and losses throughout the year—helping investors potentially offset gains and defer taxes, while better aligning their portfolios with their tax situation.


Tax season is also a natural time to revisit broader planning topics, including:

  • Portfolio positioning for the year ahead, based on updated tax circumstances and asset allocation
  • Tax budgeting, designed to anticipate and manage needs for liquidity or planning for gain realization events in the future
  • Ongoing tax-aware portfolio management, rather than one-time year-end adjustments

The goal isn’t to eliminate taxes altogether, but to be more intentional about how and when they’re incurred.


Why direct indexing may fit the moment


While direct indexing isn’t new, its relevance often becomes clearer during tax season. When investors can directly connect portfolio structure to the tax outcomes they’ve just experienced, the value of a more customized, tax-aware approach tends to resonate more strongly.


Importantly, these conversations are most effective when framed as part of a long-term strategy, not a short-term fix. Tax efficiency is cumulative, and small improvements made consistently over time can meaningfully affect an investor’s long-term results.


The bottom line


April 15 may be the end of tax season—but it can also serve as a springboard for better planning. By using tax returns as a learning tool and treating tax season as a strategic checkpoint, investors may move to actively managing taxes, rather than merely reacting to them.


For many, that shift begins with understanding how their portfolio is constructed today—and whether a more personalized approach, such as direct indexing, could improve potential outcomes in the years ahead.




Parametric and Morgan Stanley do not provide legal, tax, or accounting advice or services. Clients should consult with their own tax or legal advisor prior to entering into any transaction or strategy described herein.


The views expressed in these posts are those of the authors and are current only through the date stated. These views are subject to change at any time based upon market or other conditions, and Parametric and its affiliates disclaim any responsibility to update such views. These views may not be relied upon as investment advice and, because investment decisions for Parametric are based on many factors, may not be relied upon as an indication of trading intent on behalf of any Parametric strategy. The discussion herein is general in nature and is provided for informational purposes only. There is no guarantee as to its accuracy or completeness. Past performance is no guarantee of future results. All investments are subject to the risk of loss. Prospective investors should consult with a tax or legal advisor before making any investment decision. Please refer to the Disclosure page on our website for important information about investments and risks.


03.25.2028 | RO 5340096

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