Form 709
The annual federal gift and generation-skipping transfer tax return. A donor making gifts above the annual exclusion to any donee must file. The form is also the principal vehicle for allocating GST exemption and for "adequate disclosure" of gift values that starts the three-year statute of limitations.
What is reported
All gifts made during the calendar year except those wholly excluded by:
- §2503(b) annual exclusion (per donee).
- §2503(e) medical and tuition exclusion.
- §2522 charitable deduction (donee identification still required on form).
- §2523 marital deduction (with limited filings for QTIP elections and gift-splitting).
Who must report
Any U.S. citizen or resident donor who makes taxable gifts or who must report particular gift events (e.g., gift-splitting, GST allocations, fractional-interest gifts of art to charity under §§170(o) and 2522(e)).
Thresholds
The annual exclusion is $19,000 per donee for both 2025 and 2026 (Rev. Proc. 2024-40; Rev. Proc. 2025-32). Gifts of present interests to a single donee exceeding the exclusion, and any gift of a future interest, require Form 709 reporting. Outright gifts to a U.S.-citizen spouse qualify for the unlimited marital deduction and generally do not require a return; for a non-citizen spouse the marital deduction is replaced by a higher annual exclusion — $194,000 for 2026 — and gifts above it must be reported. The lifetime basic exclusion amount for 2026 is $15,000,000 (§2010(c)(3) as amended by the One Big Beautiful Bill Act, Pub. L. 119-21), indexed for inflation from 2027.
The form
Form 709 (United States Gift and Generation-Skipping Transfer Tax Return). Filed annually by April 15 of the year after the gift (with automatic six-month extension via Form 8892 or Form 4868 personal extension that also extends Form 709 timing).
Penalties
- Failure to file: 5% per month of unpaid tax, capped at 25% (rare given exclusion shelter).
- Accuracy penalty: 20% on a substantial gift-tax valuation understatement (reported value 65% or less of correct value); 40% on a gross understatement (40% or less) (§6662(g), (h)).
- Late payment interest under §6601.
Adequate-disclosure rules
Under §6501(c)(9) the three-year statute of limitations begins to run on a gift only if the gift is "adequately disclosed" on a Form 709. Treas. Reg. §301.6501(c)-1(f) sets adequate-disclosure standards — description, identity, value, method of valuation, qualified-appraiser statement for substantial property. Inadequate disclosure leaves the gift open to assessment indefinitely.
Relief procedures
Late-filed Forms 709 may be filed with reasonable-cause defense. A late allocation of GST exemption may be made on a later-filed Form 709, generally using values as of the date of the late allocation (§2642(b)(3)); relief for a missed timely allocation or election may be sought under §2642(g) and Treas. Reg. §301.9100-3.
Recent guidance
The IRS continues to scrutinize valuation discount claims on family-entity-interest gifts and fractional-interest art gifts. Adequate-disclosure rigor is the principal defensive posture.
Common filings for luxury-asset transfers
- Annual exclusion gifts to family trust.
- Substantial gift to defective grantor trust for installment sale.
- Fractional-interest gift of art to museum under §170(o).
- GRAT funding with appreciated luxury asset.
- Charitable-remainder unitrust funding contribution.
- GST exemption allocation to dynasty trust.
Primary Sources
- 26 U.S.C. §§6019, 6075(b) (gift-tax filing requirements).
- 26 U.S.C. §2503 (taxable gifts).
- 26 U.S.C. §2513 (gift splitting).
- 26 U.S.C. §2642(b), (g) (GST exemption allocation and relief).
- Rev. Proc. 2025-32 (2026 annual exclusion and basic exclusion amounts) — irs.gov/pub/irs-drop/rp-25-32.pdf.
- 26 U.S.C. §6501(c)(9) (adequate disclosure SOL).
- Treas. Reg. §301.6501(c)-1(f) (adequate-disclosure standard).
- IRS Form 709 and instructions — irs.gov/forms-pubs/about-form-709.
Reviewed October 2026