Marriage is a major life event. One that comes with all kinds of change, including financial. After getting married, there is so much to consider, from merging bank and brokerage accounts to setting up a will; from changing your withholding to updating retirement account beneficiary forms. If this seems like a lot to consider, it’s important to keep in mind that when a U.S. citizen marries a non-U.S. citizen, the situation gets even more complex.

Among some of the more complex tax considerations of mixed citizenship marriages are gift and estate taxes, which we will dive into below.

Gift and Estate Tax Overview

Before getting into the details on non-citizen spousal situations, here is a recap of the basics on U.S. estate and gift taxes. In the United States, estate and gift taxes are essentially a type of transfer tax, with the tax paid by the giver. Tax rates range between 18 percent and 40 percent of the assets transferred, but there are exemptions (with lifetime limits) that can reduce or even cancel out these taxes. Currently, the lifetime exemption is $13.61 million per person; however, this is set to drop to about $7.5 million starting January 1, 2026.

Gifting – No Free Ride in Marriage

When both spouses are U.S. citizens, there is an unlimited gift tax exemption, meaning no gift tax period. In the case where the recipient spouse is a U.S citizen, this still applies; however, when the spouse receiving the gifts is a non-U.S. citizen, then it’s different.

In the case where the U.S. spouse gifts to the non-citizen spouse, there are annual limits. For 2024, the annual aggregate limit for tax-free gifting is $185,000. Gifting beyond this amount starts to eat into the total lifetime exclusion.

Leaving Assets to Heiring Spouses

Leaving a bequest to a non-citizen spouse is very similar to gifting in that it also does not benefit from the uncapped marriage exemption. When a U.S. citizen dies and leaves assets to the non-citizen spouse, the estate tax can apply. After using up the lifetime limit, taxes on these bequests can be up to 40 percent. While each situation it unique, estate planning maneuvers such as setting-up trusts can prevent or mitigate the tax hit.

Reporting Requirement – It’s About More Than Just Paying Taxes

The concept of not needing to pay tax due to exemption limitations or gift/estate tax strategies is distinct from the reporting requirements. Here, the reverse situation is the tricky one: When the non-U.S. citizen makes a gift or bequest to the U.S. spouse. Despite having no tax implications, the U.S. spouse may need to comply with informational reporting requirements if the gifts or bequests are technically foreign-sourced and more than $100,000 (in any given year). Failure to comply with reporting standards can yield serious penalties.

Gift-Splitting is Different

Gift-splitting is a technique that allows a married couple to pool their individual annual gift limits and give more tax-free money to the same person. For example, each spouse gets an annual gifting limit of $18,000 they can give to any one recipient (per calendar year), without any tax considerations or use of the lifetime limits. Gift-splitting lets each spouse give this amount to the same person, effectively doubling the amount they can give together to any one person to $36,000. This is not allowed when one spouse is a non-U.S. citizen.

Conclusion

In the end, there is almost always an issue when the U.S. citizen spouse gifts or bequests to the non-U.S. citizen spouse (not the other way around). Keep these details in mind when tax planning and you’ll be on the right path. Also, it’s important to remember that these are the U.S. tax rules and regulations. Any tax implications for the non-U.S. citizen spouse in their country is beyond the scope of this article.

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