Gift Tax Calculator (2026)

Annual gifts mostly fly under the radar—until they do not

Gift tax is owed by the donor, not recipient. Annual exclusion gifts up to $19,000 per donee in 2026 avoid gift tax reporting for most cash or property transfers. Larger gifts consume lifetime unified exclusion ($15,000,000 basic exclusion amount in 2026 aligned with estate tax) before out-of-pocket gift tax applies at 40% marginal rate on cumulative taxable gifts.

Enter gifts by recipient, split with spouse if gift-splitting elected, direct tuition/medical exclusions, and prior taxable gifts. See Form 709 requirement flags and lifetime exemption remainder.

2026 key numbers

• Annual exclusion: $19,000 per donee
• Lifetime basic exclusion (gift + estate unified): $15,000,000
• Top gift/estate marginal rate: 40% on cumulative taxable transfers above exemption

How to use the calculator

Step 1 — List gifts by recipient

Cash, stock FMV, real estate appraised value.

Step 2 — Apply $19,000 exclusion per donee

Married donors can gift-split to double exclusion to $38,000 per donee when elected on Form 709.

Step 3 — Track lifetime exemption use

Taxable gifts reduce remaining estate exclusion—estate tax calculator.

Worked example

Parent gives child $40,000 cash in 2026 → $19,000 excluded, $21,000 taxable gift reducing lifetime exemption by $21,000—no cash gift tax due unless lifetime gifts exceeded $15 million cumulative.

Appreciated assets

Recipient takes donor’s basis—capital gains shift to recipient on sale. Compare estate holding until death step-up planning with estate and life insurance calculators.

529 superfunding

Five-year election can front-load 529 contributions using five years of exclusions—advanced Form 709 planning beyond simple calculator.

Common mistakes

• Ignoring gift value when helping with down payment over $19,000
• Reimbursing tuition to student instead of paying school directly
• Forgetting gift-split requires Form 709 even if no tax due

Related tools

Estate: estate tax calculator. Life insurance estate: life insurance estate tax calculator. Capital gain on gifted stock: capital gains tax calculator.

Form 709 filing when no tax due

Gifts exceeding annual exclusion require Form 709 even when lifetime exemption covers tax—reporting reduces remaining estate exclusion on unified schedule. Split gifts with spouse require both signatures and consistent reporting across returns.

Generation-skipping and 529

Generation-skipping transfer tax applies to gifts to skip persons (grandchildren) when GST exemption exhausted—$15,000,000 unified exclusion includes GST for 2026 planning amounts. 529 five-year front-load uses five annual exclusions per beneficiary when Form 709 filed with election.

Gift of partial interest in LLC or family business requires valuation discount appraisal—FMV not proportional book value. Crummey powers in trust gifts use annual exclusion for ILIT premiums—coordinate with life insurance estate calculator.

Reading your results for gift tax

The interactive panel above shows a transparent calculation trace in cents—use it to sanity-check inputs before you rely on any number for decisions. Tax software at filing time may differ when every credit, limitation, and state conformity rule is applied in full. Treat output here as structured planning math aligned to 2026 federal reference data where noted, not as e-file output or professional advice.

When your situation includes items this specialized tool simplifies—multiple entities, prior-year carryforwards, treaty elections, or state nonconformity—layer those facts manually or with a preparer. The goal is to narrow uncertainty enough to ask better questions, not to eliminate the need for review when dollars are material.

Recordkeeping that survives scrutiny

Keep source documents (forms, statements, logs, confirmations) that support every input you typed. IRS and state audits often start from third-party reporting; your job is to reconcile 1099s, K-1s, and broker exports to the story you file. Digital backups with dates beat reconstructed spreadsheets created after an notice arrives.

For gift tax, retain worksheets year to year when carryforwards exist—loss carryovers, credit carryforwards, passive loss suspensions, and basis schedules die silently if you change preparers and lose history.

Related tools on this site

Estate: estate tax calculator. Life insurance: life insurance estate tax calculator.

2026 federal brackets and payroll context

Ordinary income tax brackets and standard deductions for 2026 follow IRS Rev. Proc. 2025-32 ($16,100 single / $32,200 joint standard deduction; seven marginal rates from 10% to 37%). Social Security tax applies at 6.2% on wages up to the $184,500 wage base; Medicare continues at 1.45% with Additional Medicare Tax above threshold wages. These layers stack independently from specialized rules modeled in this gift tax tool—run the federal income tax calculator when you need the full return picture.

Quarterly estimated tax may be required when withholding does not cover liability—see the quarterly estimated tax calculator. Year-end refund or balance due comparisons belong in the tax refund estimator once withholding and payments are known.

Before filing season

Reconcile this gift tax calculator estimate against draft Form 1040 lines and attached schedules your software produces. Look for mismatches in basis, carryforwards, and state add-backs—the first pass with a specialized calculator often misses secondary limits that full return software catches. Update inputs when you receive final 1099s, K-1s, and corrected broker statements; January revisions are normal.

If results imply large balance due, adjust withholding or estimated payments before December 31 when possible—penalties accrue on underpayment even when you file timely in April. If results imply large refund, you may be over-withholding or overpaying estimates; tune W-4 or voucher amounts for better cash flow without chasing refunds as a savings strategy.

State returns often piggyback federal logic but diverge on conformity items. Re-run state tools when federal inputs change materially so you do not pay state estimates based on federal-only planning from this gift tax calculator page.

Sources and methodology

Annual exclusion $19,000 and estate basic exclusion $15,000,000 from IRS Rev. Proc. 2025-32 and 2026 inflation releases. Form 709 rules simplified. Educational—not estate planning advice.