For estates above the federal exemption ($30M combined for married couples in 2026, per the One Big Beautiful Bill Act of 2025), the math of doing nothing is brutal: 40% federal estate tax on the amount over the exemption. Three paths exist. Most families pick the one their parents picked — by default — and it's almost never the best one.
Drop in your current estate value, expected growth rate, annual spending, time until transfer, number of recipients for annual gifting (Scenario B), and how much you'd transfer to an irrevocable trust today (Scenario C). The calc projects each scenario forward, applies 2026 estate-tax rules, and shows you what actually lands with your heirs.
The "Trust Advantage" headline is the dollar difference between the trust strategy and doing nothing. For estates well over the exemption, the gap is often eight figures — which is why estate planning is the highest-leverage planning move for HNW families.
Illustration only. Models a married couple using gift-splitting and combined federal exemption: 2026 estate tax exemption of $30M ($15M × 2 via portability, per the One Big Beautiful Bill Act of 2025), $38K annual exclusion per recipient ($19K × 2), and 40% tax on the taxable amount. Trust scenario assumes a single irrevocable trust funded by both spouses for descendants. State estate taxes vary and are excluded. Trust strategies require qualified legal counsel and proper structuring. Trust-level taxation applies to assets held in trust.
The 2026 federal estate tax exemption sits at $15M per individual / $30M per married couple, made permanent by the One Big Beautiful Bill Act of 2025 — replacing the prior 2026 sunset back to roughly $7M/$14M. That removes the cliff most HNW planning was racing against. It does not remove the 40% tax on dollars above the exemption. For estates meaningfully north of $30M, every additional dollar of growth left inside the estate is taxed at 40% at death. The leverage from moving assets into a properly structured trust today is unchanged — what changed is that there's no longer a forced deadline. The opportunity cost of doing nothing, however, is.
The opportunity cost of doing nothing is the largest single planning expense most HNW families never see. Because the IRS collects it after you're gone, you never feel it. The kids do.
Annual gifting (Scenario B) uses the $38K-per-recipient annual exclusion ($19K × 2 for married couples). Steady, simple, doesn't touch the lifetime exemption. The downside is the slow pace — over 25 years and 4 recipients, that's $3.8M moved, which barely dents a $20M+ estate.
The irrevocable trust (Scenario C) is where the leverage lives. By transferring assets into a properly structured trust today, you remove them from your taxable estate — AND all future growth on those assets compounds outside the estate too. On a 25-year horizon with 6% growth, $3M transferred today becomes ~$13M outside the estate. That's $13M the IRS doesn't get a 40% bite of.
The honest tradeoffs: the trust is irrevocable (you give up control of those assets), it requires qualified legal counsel to structure, it has its own income-tax treatment, and the gift uses some of your lifetime exemption upfront. For most HNW families with estates well above the exemption, the math still strongly favors the trust strategy. For families closer to the line, it depends.
If your estate is approaching or above the federal exemption, this is a 30-minute conversation worth having well before you need it.