Between two U.S. citizen spouses, you can transfer money to your spouse tax free in any amount, at any time, with no federal gift tax, no income tax, and no requirement to file anything with the IRS. Cash, a check for seven figures, a brokerage account, a house deed — federal law treats the movement as an internal reallocation within a single economic unit. The picture changes when the receiving spouse isn’t a U.S. citizen, and retirement accounts follow their own rules regardless of citizenship.
Why There’s No Federal Tax Between Citizen Spouses
Two separate provisions of the tax code do the work. On the gift tax side, 26 U.S.C. § 2523 grants an unlimited marital deduction for property transferred to a spouse during your lifetime.1Office of the Law Revision Counsel. 26 USC 2523 – Gift to Spouse There is no annual cap and no lifetime cap. The type of asset doesn’t matter either — cash, real estate, stocks, vehicles, jewelry all qualify.
Because the deduction is unlimited, transferring to your spouse doesn’t consume any of your lifetime gift and estate tax exemption, which is $15 million per person for 2026.2Internal Revenue Service. What’s New — Estate and Gift Tax That exemption stays fully intact for later gifts to children, other relatives, or anyone else. Same-sex married couples get identical treatment; the IRS recognizes any marriage that was valid under the law of the place it was performed.3Internal Revenue Service. Frequently Asked Questions on Gift Taxes
On the income tax side, 26 U.S.C. § 1041 says no gain or loss is recognized when you transfer property to your spouse.4Office of the Law Revision Counsel. 26 USC 1041 – Transfers of Property Between Spouses or Incident to Divorce That’s the rule that lets you shift appreciated assets — a stock position, a rental property — without triggering the capital gain that would normally be due if you sold or gave it to anyone else.
The Catch on Appreciated Assets: Carryover Basis
The income tax isn’t erased when you move appreciated property between spouses. It’s postponed. Your spouse inherits your original cost basis.4Office of the Law Revision Counsel. 26 USC 1041 – Transfers of Property Between Spouses or Incident to Divorce
An example makes the point. If you bought stock for $20,000 and it’s now worth $200,000, handing it to your spouse costs nothing at the moment of transfer. But your spouse’s basis is still $20,000. When they sell, they’ll owe capital gains tax on the full $180,000 of appreciation. This carryover rule applies to every type of property — real estate, business interests, investment accounts. Large transfers of appreciated assets carry a future tax bill with them, so know what you’re moving before you move it.
If Your Spouse Isn’t a U.S. Citizen
The unlimited marital deduction is only available when the receiving spouse is a U.S. citizen. Green card holders don’t qualify. Long-term residents don’t qualify. Only citizenship does.1Office of the Law Revision Counsel. 26 USC 2523 – Gift to Spouse
In place of the unlimited deduction, gifts to a non-citizen spouse get a special annual exclusion. For 2026, the limit is $194,000.5Internal Revenue Service. Frequently Asked Questions on Gift Taxes for Nonresidents Not Citizens of the United States The figure adjusts for inflation. Anything above $194,000 in a calendar year begins to eat into your $15 million lifetime exemption, and once that’s exhausted, the excess is taxed at the 40% federal gift tax rate.
Staying under the cap means tracking everything — not just wire transfers or checks, but property put in your spouse’s name, shared expenses you cover on their behalf, and any other transfer of economic value. Once you cross $194,000, you have to file Form 709 to report the excess.
Qualified Domestic Trusts for Larger Wealth Transfers
For couples who need to move substantial wealth to a non-citizen spouse at death, a Qualified Domestic Trust (QDOT) can defer the estate tax that would otherwise be due. Assets go into the trust rather than directly to the spouse, and the trust must have at least one U.S. trustee. Distributions from the QDOT are then subject to estate tax as they’re paid out. A QDOT is an estate planning tool, not a lifetime gift tool — it doesn’t help you get around the $194,000 annual cap on lifetime gifts.
Retirement Accounts Are Different
The marital deduction covers most property, but you generally cannot move funds directly from your 401(k) or IRA into your spouse’s retirement account during an ongoing marriage. Those accounts are governed by plan rules and code provisions that treat distributions as taxable income to the account holder regardless of who ultimately receives the money.
The one situation that opens the door is divorce. IRA assets can be transferred to a former spouse’s IRA tax-free under a divorce decree or separation agreement, either by changing the name on the account or by a direct trustee-to-trustee transfer. The IRS then treats the transferred portion as if it had always been the recipient’s IRA.6Internal Revenue Service. Publication 590-A (2025), Contributions to Individual Retirement Arrangements (IRAs)
For employer-sponsored plans like a 401(k) or pension, dividing the account in divorce requires a Qualified Domestic Relations Order (QDRO), a court order that directs the plan administrator to pay a portion of benefits to the other spouse.7Internal Revenue Service. Retirement Topics — QDRO: Qualified Domestic Relations Order The receiving spouse can then roll the funds into their own IRA tax-free, or take a distribution that will be taxed as income but escapes the 10% early withdrawal penalty that normally applies before age 59½.8Internal Revenue Service. Retirement Topics – Divorce Without a QDRO, the plan has no legal basis to send money to anyone but the account holder.
When You Have to File Form 709
Transfers between U.S. citizen spouses require no filing. Nothing on your income tax return, no gift tax return, no disclosure. Form 709 becomes relevant only in specific situations:
- Gifts to a non-citizen spouse that exceed the $194,000 annual exclusion for 2026.9Internal Revenue Service. Instructions for Form 709 (2025)
- Gifts to any other individual (not your citizen spouse) above $19,000 in 2026.2Internal Revenue Service. What’s New — Estate and Gift Tax
- Gift-splitting elections, where you and your spouse agree to treat a gift to a third party as if each of you gave half. Both spouses file Form 709 even when no tax is due.
Form 709 is due April 15 of the year after the gift.9Internal Revenue Service. Instructions for Form 709 (2025) Filing Form 8892 gets you an automatic six-month extension, and an extension you’ve already requested for your personal income tax return automatically covers Form 709 without a separate filing.
If gift tax is actually owed and you miss the deadline, the failure-to-file penalty runs 5% of unpaid tax per month, capped at 25%. Returns more than 60 days late face a minimum penalty of $525 for returns due in 2026, or 100% of the tax owed, whichever is less. Interest runs daily at the federal short-term rate plus 3%.10Internal Revenue Service. Topic No. 653, IRS Notices and Bills, Penalties and Interest Charges Most spousal transfers produce no tax and no penalty risk. The exposure sits with non-citizen-spouse transfers over $194,000 once the lifetime exemption is used up, and with a filing failure the statute of limitations on assessment stays open indefinitely.
What About State Tax?
No U.S. state currently has a standalone gift tax. Connecticut was the last one to impose one, and it repealed the tax effective in 2023. Some states have estate or inheritance taxes with their own rules about spouses, and community property versus common law states treat ownership differently, which can matter for estate planning. None of that affects a straightforward cash transfer between two living spouses. If you’re moving large sums as part of a broader wealth strategy, your state revenue department’s guidance is worth a read.