How to fill out Form 709 — line by line, with a worked example

This guide follows the Form 709 (2025) revision — the current form posted by the IRS, used for gifts made during calendar year 2025 and filed in 2026 — together with the 2025 Instructions for Form 709. Gifts made during 2026 go on the 2026 revision, filed in 2027; the structure generally carries over year to year, but always confirm line numbers against the instructions for your filing year.

Who files Form 709 — and who doesn't?

You generally must file if, during the calendar year, you:

• Gave any one person (other than your U.S.-citizen spouse) more than the annual exclusion — $19,000 for 2026, per Rev. Proc. 2025-32;
• Made a gift of a future interest in any amount (the recipient can't use or enjoy it yet — common with some trust gifts);
• Want to elect gift splitting with your spouse — even if no tax is due and each half is under the exclusion; or
• Want to elect 5-year averaging for a large 529 contribution (more on that box below).

Who doesn't file: anyone whose gifts to each recipient stayed at or under $19,000 in present-interest gifts, plus payments made directly to a school for tuition or to a medical provider — those are excluded in unlimited amounts and never touch the form. And the recipient of a gift never files a 709; the return belongs to the giver. For the bigger picture of how the exclusion and exemption fit together, start with the gifting and gift tax guide.

What you need before you start

The form itself is short. The hard part is the records, because Form 709 is cumulative — this year's return has to agree with every return you've ever filed. Before you open the PDF, gather:

• Every prior Form 709 you've filed, with the year, the IRS office where it was filed, and the taxable-gift amount from each. Schedule B asks for all of it.
• Per-recipient totals for the year — every gift to each person, dated and valued, including the easy-to-forget ones: forgiven loan balances, below-market sales, paying someone's bill, 529 contributions.
• Cost basis for property gifts — Schedule A has a column for your adjusted basis, not just the value.
• Appraisals or valuation support for anything hard to value (closely held stock, real estate, discounted interests).

This is where most filings stall, and it's why keeping a running ledger beats reconstructing a year every April. The free Gift & 709 Ledger tracks per-recipient totals against the exclusion all year, and the Gift Tax & Form 709 Checker tells you quickly whether a filing is even required.

Part I — General Information: the checkboxes that trip people

Page 1 of the 2025 revision opens with identity lines (name, SSN, address, domicile, citizenship), then a run of yes/no questions. Three deserve attention:

The donee count

One line asks for the total number of donees listed on Schedule A, counting each person only once (line 17 on the 2025 revision). Simple — but it forces you to have a complete recipient list before you start.

The prior-709 question

"Have you (the donor) previously filed a Form 709 (or 709-A) for any other year?" (line 18a on the 2025 revision). Answer "Yes" and you must complete Schedule B with your full filing history. Answer "No" incorrectly and your lifetime running total breaks — a problem that compounds on every future return and, eventually, the estate tax return.

The gift-splitting question

The question about gifts by spouses to third parties (line 19 on the 2025 revision) is the gateway to gift splitting. Answering "Yes" sends you to Part III — Spouse's Consent on Gifts to Third Parties on page 2, where your spouse is identified and consents to treating gifts as made half by each of you. On the current revision the consenting spouse must also sign an attached Notice of Consent — per the instructions, the election isn't valid without it. Splitting doubles the per-recipient exclusion to $38,000 (2026), but it obligates both spouses: if each of you made reportable gifts, each files a separate 709, and the form suggests mailing both returns in the same envelope. The full mechanics are in the gift-splitting guide.

Schedule A — reporting the gifts

Schedule A ("Computation of Taxable Gifts") is where each gift gets its own row. On the 2025 revision, Part 1 covers ordinary gifts subject only to gift tax; Parts 2 and 3 cover generation-skipping transfers (direct skips and transfers in trust) — most family filers use Part 1 only. The columns, lettered (a)–(i):

• (a) Item number — sequential.
• (b) Donee's name and address and (c) relationship to donor.
• (d) Description of gift — "cash," or enough detail to identify property (for securities: name, CUSIP, share count).
• (e) Donor's adjusted basis — what you paid, relevant because the recipient generally takes carryover basis.
• (f) Date of gift and (g) value at date of gift — fair market value on the date given.
• (h) For split gifts, enter ½ of column (g) and (i) net transfer — column (g) minus column (h). If you're not splitting, (i) simply equals (g).

Two items above the grid matter. Question A asks whether any value reflects a valuation discount (attach an explanation if yes). And line B is the 529 5-year election — on the 2025 revision it reads: "If you elect under section 529(c)(2)(B) to treat any transfers made this year to a qualified tuition program as made ratably over a 5-year period, check here." That's the superfunding box: front-load up to 5 × $19,000 = $95,000 per donor per beneficiary ($190,000 for a splitting couple) and spread it over five years of exclusions. Check the box, attach the statement the instructions require, and see the 529 superfunding guide for the follow-on filings.

One concept controls whether the annual exclusion applies at all: present vs. future interest. The exclusion only covers gifts the recipient can use now. Outright cash is a present interest; many trust gifts are future interests unless a withdrawal right (a "Crummey" power) converts them — and future-interest gifts must be reported no matter how small.

Schedule A ends with Part 4 — Taxable Gift Reconciliation: total gifts, minus total annual exclusions, minus marital and charitable deductions, equals taxable gifts, which carries to the tax computation on page 1.

Schedule B — prior-period gifts (your lifetime running total)

Schedule B ("Gifts From Prior Periods") is one row per prior 709: (a) the calendar year, (b) the IRS office where that return was filed, (c) applicable-credit amounts for post-1976 periods, (d) pre-1977 specific exemption, and (e) the taxable gifts you reported. The total of column (e) is your lifetime running total of taxable gifts, and it feeds directly into this year's tax computation — the gift tax is computed on cumulative gifts, which is what pushes long-time givers up the rate brackets.

This is where people with lost records get stuck. A missing 709 from fifteen years ago means you can't complete Schedule B accurately, and estimates propagate forward onto every future return. If prior returns are gone, request copies or transcripts from the IRS, check with the CPA or attorney who prepared them — and if you suspect returns were never filed for reportable years, read the guide to catching up on unfiled 709s before filing this year's.

The tax computation — why most filers owe $0

Part II on page 1 runs the math: this year's taxable gifts (Schedule A, Part 4) plus prior taxable gifts (Schedule B) gives total taxable gifts; the tentative tax is computed on the cumulative total using the Table for Computing Gift Tax in the instructions (brackets run from 18% up to a top rate of 40%), minus the tax attributable to prior gifts. Then comes the line that saves nearly everyone: the applicable credit amount — the credit equivalent of your lifetime exemption, $15,000,000 basic exclusion for 2026 under Rev. Proc. 2025-32 (made permanent by 2025 legislation and indexed going forward). The credit absorbs the tentative tax until cumulative taxable gifts exceed the exemption. "Using exemption" just means this offset: each dollar of taxable gifts reduces what's left to shelter future gifts — and your estate — by a dollar. No cash changes hands with the IRS until the whole exemption is gone.

A worked example: one parent, one child, $50,000

Meet Pat Example — an unmarried, obviously illustrative parent who gives one child $50,000 in cash during 2026, has never filed a 709 before, and makes no other reportable gifts. Here's the whole return, number by number (using the 2025 revision's layout; confirm against the 2026 form when it posts):

1. Part I: one donee (the child); prior-709 question — "No," so Schedule B is skipped; gift-splitting question — "No" (no spouse).
2. Schedule A, Part 1, one row: column (b) the child; (d) "cash"; (f) the gift date; (g) value $50,000; no splitting, so (i) net transfer = $50,000.
3. Schedule A, Part 4: total gifts $50,000; annual exclusion −$19,000 (2026, one recipient); no deductions; taxable gifts = $31,000.
4. Part II tax computation: total taxable gifts $31,000 (nothing prior). Tentative tax from the rate table: roughly $6,220 (the table's lower brackets — confirm the exact figure against the Table for Computing Gift Tax in the current instructions).
5. Applicable credit: Pat's credit — equivalent to the full $15,000,000 exemption — is vastly larger than $6,220, so it wipes the tentative tax out entirely. Tax due: $0.
6. The real cost: Pat's remaining lifetime exemption drops by the $31,000 of taxable gifts — from $15,000,000 to roughly $14,969,000. That $31,000 also becomes the first entry on Schedule B of every future 709 Pat files.

That's the whole event: a filing, a $31,000 haircut to a fifteen-million-dollar allowance, and zero dollars of tax.

Deadlines and extensions

Form 709 is due April 15 of the year after the gift — the 2026 return is generally due April 15, 2027 (shifted for weekends/holidays). Two ways to extend, per the instructions:

• Extending your income tax return (Form 4868) automatically extends the gift tax return too; or
• If you're not extending your income taxes, file Form 8892 for an automatic 6-month extension of the 709 alone — generally to October 15.

Either way, an extension extends the time to file, not the time to pay any tax actually due. And a rule that surprises couples every year, straight from the instructions: "Spouses may not file a joint gift tax return." Each spouse with reportable gifts files their own Form 709 — even when splitting gifts.

Common questions about filling out Form 709

This guide is general information, not tax or legal advice. Gift and exemption figures are indexed and change; verify current numbers with the IRS and consult your CPA or attorney.