Coluntino Law

Tax Planning

Portability in Estate Planning: Maximizing Your Estate Tax Exemption

By Ralph Coluntino, Esq.3 min read

Frequently asked questions

Do I have to file an estate tax return even if my spouse's estate is below the exemption amount?
Yes. To preserve portability and transfer your deceased spouse's unused exemption to you, you must file an estate tax return within nine months of death, even if no estate tax is owed. You can request a six-month extension if needed, but missing this deadline means losing the portability benefit.
How does portability affect the step-up in basis for inherited assets?
Assets passed to a surviving spouse through portability receive a step-up in basis to their full market value at the date of death, regardless of how ownership was structured. This can reduce capital gains taxes if you later sell those assets.
Can portability replace the need for a credit shelter trust in my estate plan?
For many married couples, portability offers a simpler alternative to credit shelter trusts or bypass trusts, which were previously used to preserve both spouses' exemptions. However, your individual circumstances may still benefit from a trust-based plan, so consult with an estate planning attorney to determine the best approach.

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