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Portability: Sharing the Estate Tax Exemption

Posted by Nina Whitehurst | Jan 13, 2018 | 0 Comments

Portability is actually a simple concept. It means that if one half of a married couple doesn't use up the entirety of the federal estate tax exemption at death, the surviving spouse can use this leftover portion, plus his or her own exemption. It makes a high federal estate tax bill less likely. This provision has changed the way estate planning can be approached today.

Here are the basics:

  • Portability applies to a surviving spouse. It allows a surviving spouse to use a deceased spouse's unused estate and gift tax exclusion, shielding more money from estate taxes, beyond the estate tax threshold of $5.49 million per person in 2017 ($11.58 million per person in 2020).
  • Portability rules come with caveats. Individuals and advisers need to be aware that they must act quickly after the first spouse dies. That's because estate tax returns must be filed usually within nine months of the death to take advantage of portability.
  • An executor makes an election on Form 706. This will allow the surviving spouse to pick up the unused portion of the partner's gift and estate tax exemption.
  • Portability generally doesn't apply to state estate taxes. Many states have state estate taxes, and there is usually no portability provision at the state level. State estate tax levels may also be different from federal estate tax levels.
  • Portability doesn't help control bequests. Portability doesn't control how assets will be distributed to heirs. So control is a more important estate planning objective. Whether or not portability is an issue, families should consider trusts, for example, as useful tools for handing money to future generations.
  • Portability doesn't address asset appreciation. When the surviving spouse dies, only the original deceased spouse's estate would be protected, not any appreciation in the value of assets.

IRS regulations allow the value of assets going to the surviving spouse or charity to be estimated rather than a more formal and detailed appraisal. The estate tax return must be completed fully in other respects.

What if a couple's combined assets are far less, say, well below $5 million? Many experts still recommend taking advantage of portability because assets can rise in value, especially if the second death could be decades away.

Not opting for portability can shortchange a survivor, as it allows spouses to leave assets to each other free of estate tax. People have to be willing and able to plan ahead. Also, portability rules allow surviving spouses to carry the unused exemption of the last deceased spouse amount into their next marriage, but if the new spouse later dies only the most recent deceased spouse's unused exemption is if available to the surviving spouse except as to gifts made by the surviving spouse while the most recent spouse was alive. Let's just say it's complicated.

Tailor your estate plan to your individual situation and discuss portability with your wealth and tax advisers, as well as your estate attorney, as the law allows spouses to leave assets to each other free of estate tax.


About the Author

Nina Whitehurst

Attorney at Law Nina has been practicing law for over 30 years in the areas of estate planning, real estate and business law She is currently licensed in Alaska, Arizona, California, Colorado, Oregon and Tennessee. Her Martindale-Hubbell attorney rating is the highest achievable: 5 stars in peer...


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