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Multi-Generational Wealth Transfer Simulator

Simulate the massive compound interest benefits of transferring wealth to your heirs through systematic annual gifting while you are alive, rather than waiting for an inheritance.

Your Assets & Horizon

Gifting Strategy

The 2026 IRS annual gift exclusion limit is $18,000 per person ($36,000 for married couples).

Wealth Transfer Comparison (After 20 Years)

Scenario A: Do Nothing (Inheritance Only)

Assets grow in your estate at 7%
Final Estate Value $19,348,422
Estimated Estate Tax (40% over exemption) -$2,939,368

Scenario B: Systematic Annual Gifting

You gift $54,000 total every year to your heirs. They invest it at 7%.
Final Estate Value $17,026,674
Heirs' Compound Gift Value $2,321,748
Estimated Estate Tax (40% over exemption) -$2,010,669
Net Family Wealth Advantage: +$928,699

About this tool

The wealth transfer simulator compares "hold to death" versus "systematic annual gifting" over a multi decade horizon, sizing the federal estate tax bite and the compounding advantage of moving assets out of the taxable estate. The 2026 federal exemption is 13.99 million USD per individual after the OBBBA 2025 made the TCJA doubled exemption permanent.

How it works

Scenario A (hold to death):
  Estate at death     = Assets x (1 + r)^years
  Estate tax          = max(0, Estate - 13.99M) x 40%
  Net family wealth   = Estate - Estate tax

Scenario B (annual gifting):
  Annual gift total   = Heirs x 19,000 USD (annual exclusion)
  Estate at death     = (Assets x (1+r)^n) - gifts x compounding annuity
  Heirs portfolio     = Annual gift x [((1+r)^n - 1)/r]
  Net family wealth   = (Estate - tax) + Heirs portfolio
  • Annual exclusion 2026: 19,000 USD per donor per donee (38,000 USD for a married couple gift splitting).
  • Lifetime exemption 2026: 13.99 million USD per individual (federal). Portability lets surviving spouse use both halves: 27.98 million USD MFJ.
  • Estate tax rate: 40 percent on amounts above the exemption (IRC Section 2001).
  • State estate tax: separate. OR, MA, WA, IL, NY, RI, CT impose estate tax with exemptions of 1 to 12.92 million USD. NJ, MD, PA, KY impose inheritance tax.

Worked example

A 70 year old widow has a 15 million USD investable portfolio and three adult children. Time horizon 20 years (life expectancy to age 90). Expected real return 5 percent (7 percent nominal minus 2 percent inflation).

  1. Scenario A (hold to death): 15,000,000 x (1.05)^20 = 39.8 million USD final estate.
  2. Estate tax A: (39.8M - 13.99M) x 40 percent = 10.32 million USD tax.
  3. Net family A: 39.8M - 10.32M = 29.48 million USD to heirs.
  4. Scenario B (gifting): 3 heirs x 19,000 USD = 57,000 USD per year out of the estate.
  5. Heirs portfolio B: 57,000 USD per year compounded at 5 percent for 20 years = 1.88 million USD outside the taxable estate.
  6. Estate B at death: 39.8M - 1.88M = 37.92 million USD remaining in the estate.
  7. Estate tax B: (37.92M - 13.99M) x 40 percent = 9.57 million USD.
  8. Net family B: (37.92M - 9.57M) + 1.88M = 30.23 million USD to heirs.
Result: Systematic gifting captures 750,000 USD of additional family wealth (29.48M vs 30.23M) without triggering Form 709 filings. Layering on direct tuition payments for 2 grandchildren (40,000 USD per year) and 529 plan front-loading (5 years of 19,000 USD up front per child) can lift the advantage above 2 million USD.

2026 estate and gift tax key numbers

Source: IRS Rev. Proc. 2025-32, IRC Sections 2001 and 2503, and the One Big Beautiful Bill Act of 2025 making the TCJA exemption permanent.

Benefit / limit2026 amountStatute
Federal estate exemption (individual)13.99M USDIRC Sec 2010(c), OBBBA 2025
Federal estate exemption (MFJ with portability)27.98M USDIRC Sec 2010(c)(4)
Federal estate tax rate40%IRC Sec 2001(c)
Annual gift exclusion (per donee)19,000 USDIRC Sec 2503(b)
Non citizen spouse annual exclusion190,000 USDIRC Sec 2523(i)
GST tax exemption13.99M USDIRC Sec 2631
529 plan front load (5 year election)95,000 USD per donorIRC Sec 529(c)(2)(B)
Direct tuition / medical paymentUnlimitedIRC Sec 2503(e)

Common mistakes

  • Gifting appreciated stock. Heir inherits your low basis, owes capital gains on sale. Hold appreciated assets to death for step up; gift cash and growth potential.
  • Skipping Form 709. Exceeding the 19,000 USD annual exclusion without filing starts a statute of limitations problem the IRS can later weaponise during estate audit.
  • Forgetting the state estate tax. Oregon (1M USD exemption) and Massachusetts (2M USD) can be more painful than federal for moderately wealthy estates.
  • Front loading 529 without spousal split. A 19,000 USD per year 529 contribution does not require Form 709. A 95,000 USD front load does and must be reported with the 5 year election.
  • Reciprocal SLATs. Both spouses funding identical mirror trusts triggers the reciprocal trust doctrine and the IRS pulls the assets back into the gross estate.
  • Ignoring the GST tax. Gifts to grandchildren that skip a generation can trigger Generation Skipping Transfer tax at 40 percent unless the GST exemption is allocated explicitly on Form 709.

Related tools and glossary

529 CalculatorInheritance TaxEstate TaxStep Up in Basis

Frequently asked questions

What is the 2026 federal estate tax exemption?

13.99 million USD per individual (27.98 million USD per married couple with portability) in 2026. The One Big Beautiful Bill Act (OBBBA) signed in 2025 made the TCJA-doubled exemption permanent rather than letting it sunset to roughly 7 million USD at the end of 2025. The federal estate tax rate above the exemption is 40 percent. Some states impose separate estate or inheritance taxes (OR, MA, WA, NY have exemptions of 1 to 12.92 million USD).

What is the annual gift exclusion in 2026?

19,000 USD per donor per recipient in 2026 (raised from 18,000 in 2024 and 2025 by inflation indexing under IRC Section 2503(b)). A married couple can split gifts to give 38,000 USD per recipient per year without filing Form 709. Gifts under the annual exclusion do not reduce the lifetime exemption. Direct payment of tuition or medical bills to the institution is unlimited under IRC Section 2503(e).

What is step up in basis and why does it matter?

Under IRC Section 1014, assets held until death pass to heirs with cost basis stepped up to fair market value on the date of death. A 100,000 USD stock with 20,000 USD basis becomes a 100,000 USD basis at death, wiping out 80,000 USD of unrealized capital gains. Gifted assets do not get the step up; the heir inherits the donor's basis. This creates a trade off: gift cash and growth assets early; hold appreciated assets to death.

What happens if I exceed the annual gift exclusion?

You file IRS Form 709 by April 15 and the excess reduces your lifetime exemption. You do not pay gift tax until the cumulative lifetime gifts exceed the 13.99 million USD exemption. Above that the federal gift tax rate is 40 percent. Most filers never owe actual gift tax; Form 709 is a tracking filing. Failure to file is a separate problem because of statute of limitations.

Sources and further reading

  • IRS Rev. Proc. 2025-32 (October 2025), 2026 inflation adjustments including estate exemption (13.99M USD) and annual gift exclusion (19,000 USD).
  • One Big Beautiful Bill Act of 2025 (Pub. L. 119-XX), making the TCJA doubled estate exemption permanent.
  • IRC Sections 2001 (estate tax rates), 2010 (unified credit), 2503 (gift exclusion), 2631 (GST exemption).
  • IRS Publication 559 (2025), Survivors, Executors, and Administrators, comprehensive estate planning guide.
  • State Estate and Inheritance Tax Survey, Tax Foundation (January 2026), state-level estate and inheritance tax map.

Last updated 2026-05-28.