Connecticut is the only state that levies its own gift tax on lifetime transfers, but several other states effectively reach recent gifts through estate tax look-back rules that pull those transfers back into a deceased donor’s taxable estate. So while state gift taxes barely exist as a category, the practical exposure for donors in a handful of states is real, and it sits on top of the federal rules that apply to everyone.
Connecticut’s Standalone Gift Tax
Connecticut is the sole state that imposes a gift tax on lifetime transfers. Residents who give property, and non-residents who give real or tangible property located in Connecticut, must file a state gift tax return (Form CT-706/709) whenever their Connecticut taxable gifts for the year exceed zero. That filing obligation exists even when no state tax is owed.
Connecticut ties its gift tax exemption to the federal basic exclusion amount. For 2025, the state exemption was $13.99 million, matching the federal figure for that year. Because Connecticut’s statute references the federal basic exclusion directly, the 2026 exemption should track the new $15 million federal level, though the state’s Department of Revenue Services had not published official 2026 guidance at the time of this writing.
Gifts that exceed the lifetime exemption are taxed at a flat 12% of the excess. Connecticut doesn’t use graduated brackets for its gift tax; the rate applies regardless of how large the overage is. Donors owe this independently of any federal gift tax.
Connecticut gift tax payments also function as prepayments against the donor’s eventual state estate tax liability. The state credits gift taxes already paid when computing estate tax at death, so donors aren’t taxed twice on the same dollars by the same state.
State Estate Tax Look-Back Rules
Most states don’t tax gifts during a donor’s lifetime, but a handful of states with their own estate taxes use look-back provisions that retroactively pull recent gifts into the taxable estate when the donor dies. The practical effect resembles a delayed gift tax, except the bill falls on the estate rather than the living donor.
The typical look-back window is three years before the date of death. If a donor makes a large gift and dies within that window, the gift’s value gets added back to the estate for state tax purposes. Because many state estate tax exemptions are far lower than the federal exemption, some as low as $1 million, this add-back can generate a state tax bill even when the federal return shows no tax due.
Consider a state with a $2 million estate tax exemption. A resident gives away $1 million, dies 18 months later with a $1.5 million estate, and the look-back rule adds the gift back. The state now sees a $2.5 million taxable estate, triggering tax on the $500,000 overage at rates that can reach 16% in some states. The heirs often don’t see this coming because the gift was legal, properly reported to the IRS, and well within the federal exemption.
These rules vary from state to state. Some states apply the add-back only to gifts of in-state property. Others have modified or narrowed their provisions over time. Minnesota, for example, maintains a three-year clawback for gifts exceeding the federal annual exclusion. Donors in declining health or planning late-life transfers should check their state’s specific estate tax rules, because the three-year clock starts when the gift is made and there’s no way to restart it once a diagnosis changes the picture.
The Federal Rules That Apply in Every State
Whether or not your state reaches gifts, the federal gift tax applies to any transfer of property where the giver receives nothing of equal value in return. Under Title 26 of the United States Code, the tax falls on the donor, not the recipient.1Office of the Law Revision Counsel. 26 USC Chapter 12 – Gift Tax Cash, real estate, stocks, forgiven loans, and below-market sales can all count as taxable gifts.
The annual exclusion lets you give up to $19,000 per recipient in 2026 without filing anything. You can give that amount to as many people as you want, each calendar year, with no reporting obligation.2Internal Revenue Service. What’s New – Estate and Gift Tax Gifts that stay under the annual exclusion don’t count against your lifetime exemption either.
When a gift exceeds $19,000 to any one person, the donor files IRS Form 709. Filing doesn’t mean writing a check. The excess simply reduces the donor’s lifetime exemption, which for 2026 is $15 million after Congress made that figure permanent through legislation signed in July 2025.2Internal Revenue Service. What’s New – Estate and Gift Tax The unified credit offsets, dollar for dollar, the tax that would otherwise be owed on those gifts, so no out-of-pocket tax is due until the full $15 million is used up.3Office of the Law Revision Counsel. 26 USC 2010 – Unified Credit Against Estate Tax
Once a donor exhausts the lifetime exemption, additional taxable gifts face federal rates that start at 18% and climb to 40% on the largest transfers. For most people, the $15 million threshold means the federal gift tax is a paperwork exercise rather than an actual bill.
Spousal Gifts
Transfers between spouses who are both U.S. citizens are completely exempt from federal gift tax, with no dollar limit. The unlimited marital deduction wipes out the tax on any gift between married citizens, whether it’s a joint bank account, a house, or a multimillion-dollar portfolio transfer.4Office of the Law Revision Counsel. 26 USC 2523 – Gift to Spouse
The rules tighten when one spouse is not a U.S. citizen. Instead of an unlimited deduction, the donor spouse gets a heightened annual exclusion of $194,000 for 2026. Gifts above that amount require a Form 709 filing and reduce the donor’s lifetime exemption.5Internal Revenue Service. Frequently Asked Questions on Gift Taxes for Nonresidents Not Citizens of the United States This catches people every year because many couples assume spousal gifts are always tax-free.
Married couples can also elect to treat any gift made by one spouse as if each spouse made half. This effectively doubles the annual exclusion to $38,000 per recipient when both spouses consent.6Office of the Law Revision Counsel. 26 USC 2513 – Gift by Husband or Wife to Third Party The consent must be signed before April 15 of the year following the gift, and the election applies to all gifts made by either spouse during that entire calendar year. You can’t cherry-pick which gifts to split. One practical consequence: even if neither spouse’s individual gifts would otherwise require Form 709, electing to split means both spouses must file.
Tuition and Medical Payments
Payments made directly to a school for tuition, or directly to a medical provider for someone’s care, are completely excluded from the federal gift tax with no dollar cap. These qualified transfers don’t count against the annual exclusion or the lifetime exemption.7eCFR. 26 CFR 25.2503-6 – Exclusion for Certain Qualified Transfer for Tuition or Medical Expenses A grandparent who writes a $60,000 tuition check to a university and also gives the same grandchild $19,000 in cash has zero gift tax exposure on any of it.
“Directly” means directly. Reimbursing someone for tuition they already paid doesn’t qualify. Sending money to a trust earmarked for tuition doesn’t qualify. Paying for room and board, textbooks, or supplies doesn’t qualify; only tuition counts on the education side.7eCFR. 26 CFR 25.2503-6 – Exclusion for Certain Qualified Transfer for Tuition or Medical Expenses On the medical side, the exclusion covers the same expenses that qualify for the medical deduction under the income tax code, including health insurance premiums. If the recipient’s insurance later reimburses the expense, the exclusion is lost to the extent of the reimbursement.
How State and Federal Gift Taxes Overlap
When both a state and the federal government reach the same transfer, the federal system provides partial relief. The Internal Revenue Code allows an estate to deduct state death taxes actually paid when calculating the federal taxable estate.8Office of the Law Revision Counsel. 26 USC 2058 – State Death Taxes This is a deduction, not a credit. It reduces the base on which federal tax is calculated rather than directly offsetting the federal bill dollar for dollar.
The state tax gets calculated first. That payment then reduces the value of the estate for federal purposes, lowering the federal tax. Getting the order backwards means overstating the federal taxable estate and overpaying. For transfers large enough to trigger both Connecticut’s 12% gift tax and the federal 40% top rate, the combined effective rate can push past 45% of the gift’s value, though the deduction prevents pure stacking of the full rates.
Filing State and Federal Gift Tax Returns
Federal gift tax returns on Form 709 are due by April 15 of the year after the gift is made.9Internal Revenue Service. Instructions for Form 709 You must file whenever your gifts to any single recipient exceed the $19,000 annual exclusion, when you and your spouse elect to split gifts, or when you give a future interest in property regardless of value.10Internal Revenue Service. About Form 709, United States Gift (and Generation-Skipping Transfer) Tax Return
Filing a federal income tax extension using Form 4868 automatically extends the gift tax return deadline to the same date. Alternatively, Form 8892 requests a six-month extension for the gift tax return alone.9Internal Revenue Service. Instructions for Form 709 Neither extension gives extra time to pay any tax actually owed, only extra time to file the paperwork.
Connecticut donors must separately file Form CT-706/709 with the state Department of Revenue Services. The state form mirrors much of the federal data but applies Connecticut’s own exemption and rate. Keeping copies of both returns alongside supporting documents such as appraisals, bank statements, and deeds matters because both the IRS and state tax authorities can audit gift tax returns for years after filing.
The penalty for filing a late Form 709 is 5% of the unpaid tax for each month or partial month the return is overdue, up to a maximum of 25%.11Internal Revenue Service. Failure to File Penalty Interest accrues on top of the penalty from the original due date until the balance is paid.
Most donors who file Form 709 don’t owe any actual tax because the unified credit absorbs the liability. In those cases, the failure-to-file penalty calculates against zero, resulting in no financial hit. But unfiled returns leave the statute of limitations open indefinitely, meaning the IRS can revisit the gift’s valuation decades later. Filing on time, even when no tax is owed, starts the three-year clock on IRS challenges and locks in the reported value. Connecticut imposes its own penalties and interest for late or missing state returns, separate from any federal consequences.