On July 8, 2022, the IRS issued a new procedure that can be used to extend estate tax portability for up to five years after the death of a spouse.

This could be extremely useful for individuals who sought estate planning more than two years after the death of their spouse.

In 2010, Congress enacted legislation that permitted the estate of a deceased person to “port” their federal estate tax credit (currently $12.06 million) for use by the estate of their surviving spouse upon that spouse’s death. The election is beneficial for couples who did not sign wills during their lifetimes that provided for this.

Before this new procedure, the estate elected portability by filing an estate tax return within the statutory limits after the death of the first spouse — that is, essentially, within 18 months after the death. After that, the executor would have to file for a letter ruling and submit substantial evidence to extend the portability.

Even if a deceased spouse did not have a taxable estate, the couples’ combined estates could be very substantial.

As of January 1, 2026, unless the law changes, the federal estate tax exemption will fall to $6 million. In context, for example, the heirs of a couple who owned $12 million in assets, with the first spouse having died with a small estate, would face federal estate tax at 40-50+% of the amount over $6 million, plus state taxes in states like New York.

A portability election could greatly reduce or eliminate the estate tax on the death of the second spouse.

The new election is simple. The executor (formal or informal) files an estate tax return, which says on the top that it is filed to elect portability under the applicable regulation.

For more information on this development, or assistance with estate planning, please contact the author of this article.

©2026 Carlton Fields, P.A. Carlton Fields practices law in California through Carlton Fields, LLP. Carlton Fields publications should not be construed as legal advice on any specific facts or circumstances. The contents are intended for general information and educational purposes only, and should not be relied on as if it were advice about a particular fact situation. The distribution of this publication is not intended to create, and receipt of it does not constitute, an attorney-client relationship with Carlton Fields. This publication may not be quoted or referred to in any other publication or proceeding without the prior written consent of the firm, to be given or withheld at our discretion. To request reprint permission for any of our publications, please use our Contact Us form via the link below. The views set forth herein are the personal views of the author and do not necessarily reflect those of the firm. This site may contain hypertext links to information created and maintained by other entities. Carlton Fields does not control or guarantee the accuracy or completeness of this outside information, nor is the inclusion of a link to be intended as an endorsement of those outside sites.

Related Capabilities

Related People

Jump to Page

Carlton Fields, P.A. Cookie Preference Center

Your Privacy

When you visit our website, we use cookies on your browser to collect information. The information collected might relate to you, your preferences, or your device, and is mostly used to make the site work as you expect it to and to provide a more personalized web experience. For more information about how we use Cookies, please see our Privacy Policy.

Strictly Necessary Cookies

Always Active

Necessary cookies enable core functionality such as security, network management, and accessibility. These cookies may only be disabled by changing your browser settings, but this may affect how the website functions.

Functional Cookies

Always Active

Some functions of the site require remembering user choices, for example your cookie preference, or keyword search highlighting. These do not store any personal information.

Form Submissions

Always Active

When submitting your data, for example on a contact form or event registration, a cookie might be used to monitor the state of your submission across pages.

Performance Cookies

Performance cookies help us improve our website by collecting and reporting information on its usage. We access and process information from these cookies at an aggregate level.

Powered by Firmseek