SEI Enhances Integrated Tax Management Capabilities for Greater Portfolio Flexibility and After-Tax Outcomes

OAKS, Pa., Sept. 22, 2026 – SEI^® (NASDAQ:SEIC) today announced enhancements to its integrated tax management capabilities for separately managed accounts (SMAs) and unified managed accounts (UMAs), expanding advisors' ability to personalize portfolios, manage embedded unrealized gains, and pursue improved after-tax outcomes for investors.

SEI's integrated approach to tax management is designed to incorporate tax considerations across portfolio design, implementation, trading, and ongoing management. The latest enhancements build on SEI’s nearly two decades of tax overlay experience and a significant expansion of tax-management capabilities in 2025, further strengthening the firm’s offering by broadening the universe of eligible securities, increasing flexibility during portfolio transitions, and providing advisors with greater systematic control over capital gains realization.

As demand for tax-aware investing continues to rise, advisors are increasingly looking for scalable ways to deliver personalized tax-management solutions. In fact, 92% of advisors serving high-net-worth investors report being asked for tax guidance¹, while 76% of firms identify improving tax management capabilities as a top development priority².

The enhancements further support coordinated tax-loss harvesting, wash-sale awareness, portfolio optimization, and investor reporting through SEI's integrated tax-management process. New capabilities are designed to give advisors greater control and flexibility, including:

• Expanded asset eligibility designed to incorporate eligible mutual funds* alongside exchange-traded funds (ETFs) and individual securities within SEI's tax-management framework, expanding opportunities to transition existing portfolios while seeking to minimize tax consequences.
• Enhanced tax transition optionality, where a new implementation option provides greater flexibility for investors with significant unrealized gains, enabling portfolios to transition over time based on balancing tax-sensitive objectives with traditional tracking-error constraints.
• Greater gains budget control and systemization that enables advisors to establish specific annual net realized gains targets, helping them align portfolio implementation and ongoing management with investor tax preferences and planning objectives.

Erich Holland, Head of SEI’s U.S. Wealth & Advisor Business, said:

"Investors no longer view tax efficiency as a complementary benefit to portfolio management; they expect it to be embedded in the investment process. These enhancements reflect our continued commitment to making tax management more intentional, flexible, and integrated throughout the investor experience.

"By expanding eligible assets, introducing greater flexibility for tax-sensitive transitions, and giving advisors more precise control over gains realization, we're helping them deliver a more personalized experience while seeking to improve after-tax outcomes. Tax management is not simply a feature—it is a central philosophy that should inform how portfolios are designed, implemented, and managed over time."

¹BlackRock, Advisor Trends Survey, January 2026.
²Cerulli, The Cerulli Report – U.S. Managed Accounts 2026, July 2026.
*SEI sponsored mutual funds and ETFs are not currently eligible.
 

About SEI^®

SEI (NASDAQ:SEIC) is a leading global provider of financial technology, operations, and asset management services within the financial services industry. SEI tailors its solutions and services to help clients more effectively deploy their capital—whether that’s money, time, or talent—so they can better serve their clients and achieve their growth objectives. As of June 30, 2026, SEI manages, advises, or administers approximately $2.1 trillion in assets. For more information, visit seic.com.

Forward-looking statements

This communication contains forward looking statements within the meaning of the rules and regulations of the Securities and Exchange Commission. In some cases, you can identify forward looking statements by terminology, such as “may,” “will,” “expect,” “believe,” “can,” “continue,” “seek,” or similar expressions.

SEI’s forward looking statements include its current expectations as to:

• the benefits of its integrated tax-management capabilities and related enhancements for investors;
• the demand for and adoption of tax-aware investment management solutions by financial advisors and investors; and
• the capabilities of SEI’s tax-management framework and the degree to which those capabilities may assist advisors in managing unrealized gains, portfolio implementation, capital gains realization, tax-loss harvesting, and investor objectives.

You should not place undue reliance on any forward looking statements, as they are based on the current beliefs and expectations of management and are subject to significant risks and uncertainties, many of which are beyond management’s control or are subject to change. Although management believes the assumptions upon which the forward looking statements are based are reasonable, they could be inaccurate. Some of the risks and important factors that could cause actual results to differ from those described in SEI’s forward looking statements can be found in the “Risk Factors” section of SEI’s Annual Report on Form 10‑K for the year ended Dec. 31, 2025, filed with the Securities and Exchange Commission. SEI undertakes no obligation to update or revise any forward looking statements, whether as a result of new information, future events, or otherwise.

SMAs are offered through SEI’s Managed Account Solutions program.

SEI Investments Management Corporation (SIMC) does not represent in any manner that the tax consequences described as part of its tax-management techniques and strategies will be achieved or that any of SIMC's tax-management techniques, or any of its products and/or services, will result in any particular tax consequence. The tax consequences of the tax-management techniques, including those intended to harvest tax losses, and other strategies that SIMC may pursue are complex and uncertain and may be challenged by the IRS. Neither SIMC nor its affiliates provide tax advice. SIMC is a wholly owned subsidiary of SEI Investments Company (SEI).

Please note that (i) any discussion of U.S. tax matters contained in this communication cannot be used by you for the purpose of avoiding tax, penalties and/or interest which may be imposed by the IRS or any other taxing authority; (ii) this communication was written to support the promotion or marketing of the matters addressed herein; and (iii) you should seek advice based on your particular circumstances from an independent tax advisor. Accordingly, Clients should confer with their personal tax advisors regarding the tax consequences of investing with SIMC and engaging in the tax-management techniques described herein (including the described tax loss harvesting strategies) based on their particular circumstances. Clients and their personal tax advisors are responsible for how the transactions conducted in an account are reported to the IRS or any other taxing authority on the Client’s personal tax returns. SIMC assumes no responsibility for the tax consequences to any Client of any transaction.