Gift Tax Return Instructions: Form 709, Schedule A, and Gift Splitting

To file Form 709, report each gift over the annual exclusion on Schedule A at fair market value as of the gift date, apply the $19,000 per-recipient exclusion and any marital or charitable deduction, run the cumulative tax computation in Part 2 against the unified credit, and submit the return by April 15 of the year after the gift. Here is how to file Form 709 step by step for a gift made in 2026, including the choices that determine whether the IRS can revisit your valuations years from now.

Do You Actually Have to File?

You must file Form 709 for any calendar year in which you give more than $19,000 to a single recipient.¹ The $19,000 ceiling is per recipient, so you can give that amount to as many different people as you like without filing anything.

Two other situations force a filing. If you and your spouse elect to split gifts so each of you is treated as giving half, both spouses must file Form 709 for that year, even when neither spouse’s share tops $19,000.² And any gift of a future interest, where the recipient cannot use or enjoy the property immediately, requires a return regardless of value.³

Several transfers are not gifts for this purpose and should never appear on the return. Tuition paid directly to a school and medical bills paid directly to a provider are fully exempt with no dollar cap.⁴ The word “directly” matters. Reimbursing your grandchild for a tuition bill they already paid is an ordinary gift, and the educational exclusion covers tuition only, not room and board, books, or fees.⁵ Gifts to a U.S. citizen spouse qualify for the unlimited marital deduction and are never reported. If your spouse is not a U.S. citizen, the 2026 exclusion is $194,000, and anything above that goes on Form 709.¹

529 Plan Front-Loading

A single large contribution to a 529 plan can be spread across five years for gift tax purposes. Contribute $95,000 to a grandchild’s 529 account in 2026 and you can elect to treat it as five annual gifts of $19,000. The election goes on Schedule A, and you then file Form 709 for the contribution year and each of the next four years until the spread is used up.⁶ If you die inside the five-year window, the portion allocated to years after your death is pulled back into your estate.

What to Gather Before You Start

Collect the full name, address, and Social Security number of every recipient of a reportable gift. Your own identifying information needs to match IRS records exactly. Mismatches delay processing and generate notices.

Each gift needs a detailed description on Schedule A. For publicly traded stock, that means the number of shares, whether common or preferred, the exchange, and the CUSIP number.⁷ For real estate, you need the full legal description and the deed recording date.

Every gift is reported at fair market value on the date you made it. For publicly traded stock, that is the mean of the high and low trading prices for the day. For anything that does not trade on an exchange, like a family business interest or a parcel of real estate, the IRS wants a qualified appraisal or a thorough written explanation of the valuation method.⁷ Skipping the appraisal on a closely held business interest is one of the fastest routes to an audit and an accuracy penalty.

Keep receipts and canceled checks that back up any exclusion you claim. For direct tuition or medical payments, the paper trail should show the money went straight to the institution or provider.

Filling Out Schedule A

Schedule A is where the math starts. List every reportable gift, identify each recipient, and give the fair market value of the property. Gifts subject only to gift tax go in Part 1. Gifts to skip persons (grandchildren, for example) that are also subject to the generation-skipping transfer tax go in Part 2. Gifts to trusts that could later trigger the GST tax go in Part 3.⁴

After the listing, subtract the $19,000 annual exclusion for each recipient who received a present-interest gift. Then subtract any marital deduction or charitable deduction that applies. What remains is your taxable gifts for the year, and that figure flows to Part 2 for the tax computation.⁸

Running the Tax Computation on Part 2

Part 2 adds the current year’s taxable gifts to the cumulative total from every prior year you filed. The unified rate schedule is applied to that combined figure. The top rate is 40%.⁹ You then subtract the unified credit, which for 2026 corresponds to a $15 million lifetime exemption.¹ Most filers never exhaust this credit and owe no actual gift tax. The return still matters because it records how much of the exemption you have used, which determines what your estate can shelter later.

Claiming a Deceased Spouse’s Unused Exclusion

If your spouse died after 2010 and the executor elected portability on Form 706, you can use your deceased spouse’s unused exclusion on your own Form 709. Schedule C has a dedicated section for calculating the deceased spousal unused exclusion (DSUE) amount. Attach the first four pages of the Form 706 the estate filed.⁴ The DSUE amount gets added to your own unified credit.

Electing to Split Gifts With a Spouse

Married couples can treat every gift made by either spouse during the year as if each spouse made half. That doubles the annual exclusion to $38,000 per recipient for 2026 and lets both lifetime exemptions absorb any excess.² The election is all-or-nothing for the calendar year; you cannot split some gifts and keep others separate.

Both spouses consent by signing their own Form 709. If only one spouse actually made gifts, the other still files a return to record the consent. Both spouses must have been U.S. citizens or residents at the time of the gift and must have remained married through the end of the year, or through the date of death if one spouse died.

Allocating GST Exemption on Schedule C

The generation-skipping transfer tax is a separate 40% levy that applies when you transfer property to someone two or more generations below you, or to a trust that benefits such a person. Each person has a GST exemption equal to the basic exclusion amount, which is $15 million for 2026.¹

When you allocate GST exemption to a transfer, the goal is to drive the inclusion ratio to zero, which permanently shields the property and its future growth from the GST tax. Cumulative GST exemption usage is tracked in Part 2 of Schedule C.⁸

For transfers to trusts that qualify as indirect skips, the law automatically allocates your unused GST exemption unless you affirmatively opt out.¹⁰ That default is helpful when you want it and dangerous when you don’t. If you make a gift to a trust that benefits both children and grandchildren and would rather save your GST exemption for a different transfer, elect out on Schedule A, Part 3 by checking the appropriate column and attaching a statement.

If you forget to allocate GST exemption in the year of the gift, a late allocation on a subsequent Form 709 is allowed. The catch: a late allocation uses the fair market value on the date the late allocation is filed, not the original gift date. If the asset doubled in value, you need twice as much exemption to hit a zero inclusion ratio. On-time allocation is almost always cheaper.

Adequate Disclosure and the Three-Year Clock

Here is the reason to file carefully even when no tax is due. The IRS normally has three years after you file a gift tax return to challenge the value you reported or assess additional tax.¹¹ Once that window closes, the valuation is locked in. If you never file, the clock never starts, and the IRS can revisit the gift when settling your estate decades later.

The three-year clock only starts if the gift is adequately disclosed. A bare entry like “100 shares of stock to daughter” is not enough for a hard-to-value asset. The Treasury regulations require:¹²

A description of the property transferred and whether anything was received in return.
The identity and relationship of the donor and recipient.
For gifts to trusts, the trust’s tax ID number and either a summary of the trust terms or a copy of the trust document.
A detailed explanation of how fair market value was determined, including financial data relied on, any restrictions on the property, and any discounts claimed.
A statement identifying any position that conflicts with published IRS regulations or rulings.

Publicly traded securities are easier: list the exchange, the CUSIP number, and the mean of the high and low quoted prices on the gift date. Interests in entities that are not publicly traded, like an LLC membership interest, require much more, including the fair market value of 100% of the entity, your pro rata share, and an explanation of any valuation discounts. A qualified appraisal that meets IRS standards satisfies the valuation disclosure requirement on its own. Either way, give the IRS enough to evaluate the valuation without having to ask you questions. Do that, and the gift is finalized after three years. Skip it, and the question stays open.

Deadlines, Extensions, and Where to Send It

Form 709 is due by April 15 of the year after you made the gift. You cannot file it before January 1 of that year. An extension on your income tax return using Form 4868 automatically extends Form 709 to October 15. If you do not need an income tax extension but want more time for the gift tax return, file Form 8892 for a separate six-month extension.⁷

An extension gives you more time to file, not more time to pay. Any gift tax owed is still due by April 15. Interest and penalties begin accruing on unpaid balances after that date.

If the donor died during the calendar year, the executor files the Form 709. It is due no later than the due date for the donor’s estate tax return, generally nine months after the date of death.

Mailing Address

Paper returns go to a single address regardless of where you live:⁷

Department of the Treasury
Internal Revenue Service Center
Kansas City, MO 64999

Private delivery services like FedEx or UPS go to Internal Revenue Service, 333 W. Pershing Road, Kansas City, MO 64108.

Electronic Filing

The IRS accepts Form 709 electronically through its Modernized e-File (MeF) system.¹³ Not all tax preparation software supports gift tax e-filing, so check with your preparer. For a straightforward return, electronic submission is faster and eliminates mailing risk.

Amending a Return You Already Filed

If you find an error on a Form 709 you already submitted, file a new Form 709 and check the amended return box in Part 1, line 15. Attach a statement explaining what changed, along with a copy of the original return.⁷ Amended returns go to a different address: Internal Revenue Service Center, Attn: E&G, Stop 824G, 7940 Kentucky Drive, Florence, KY 41042-2915.

Penalties for Late Filing and Undervaluation

If you owe gift tax and file late, the failure-to-file penalty is 5% of the unpaid tax per month, capped at 25%.¹⁴ The failure-to-pay penalty runs at 0.5% per month on any tax not paid by April 15, also capped at 25%.¹⁵ When both apply in the same month, the filing penalty is reduced by the amount of the payment penalty, so the combined rate is effectively 5% per month for the first five months.

Valuation mistakes carry their own penalties. If you report a gift’s value at 65% or less of its actual fair market value, the IRS can impose a 20% accuracy penalty on the resulting underpayment. If the reported value is 40% or less of the correct amount, the penalty doubles to 40%.¹⁶ These penalties make a professional appraisal cheap by comparison, especially for real estate or closely held business interests where reasonable people can disagree on value.

Even when you owe no tax because your gifts fall within the lifetime exemption, skipping the return leaves the statute of limitations open indefinitely. The real cost is not a penalty assessed today but an IRS challenge to your valuations years from now, when the property may have appreciated well beyond what you originally reported and when assembling evidence to defend the valuation is far harder.

1
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
2
Office of the Law Revision Counsel. 26 USC 2513 – Gift by Husband or Wife to Third Party
3
Internal Revenue Service. About Form 709, United States Gift (and Generation-Skipping Transfer) Tax Return
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IRS.gov. 2025 Instructions for Form 709
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Office of the Law Revision Counsel. 26 USC 2503 – Taxable Gifts
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Office of the Law Revision Counsel. 26 USC 529 – Qualified Tuition Programs
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Internal Revenue Service. Instructions for Form 709 (2025)
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Internal Revenue Service. Form 709 (2025)
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Internal Revenue Service. What’s New – Estate and Gift Tax
10
Office of the Law Revision Counsel. 26 USC 2632 – Special Rules for Allocation of GST Exemption
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Office of the Law Revision Counsel. 26 USC 6501 – Limitations on Assessment and Collection
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eCFR. 26 CFR 301.6501(c)-1 – Exceptions to General Period of Limitations on Assessment and Collection
13
Internal Revenue Service. Modernized e-File (MeF) for Gift Taxes
14
Internal Revenue Service. Failure to File Penalty
15
Internal Revenue Service. Failure to Pay Penalty
16
Office of the Law Revision Counsel. 26 USC 6662 – Imposition of Accuracy-Related Penalty on Underpayments