Multi-Generational Wealth Planning for $5M–$50M Families

The goal isn't simply to minimize estate taxes — OBBBA largely solved that for this wealth band. The real challenge is transferring wealth in a way that builds rather than destroys family capital: financial, relational, and human. That requires a coordinated strategy across gifting vehicles, trust structures, and family governance.

The OBBBA backdrop: what changed

Before planning any transfers, understand the current tax context. The One Big Beautiful Bill Act (OBBBA), signed July 2025, permanently raised the federal estate, gift, and generation-skipping transfer (GST) exemption to $15 million per person ($30M per married couple).¹ This ended the sunset countdown that drove aggressive trust creation in 2024.

For most $5M–$50M families, this means:

• Federal estate tax is no longer a primary driver for those under $15M per person
• Trusts built specifically to beat the TCJA sunset may need re-evaluation
• State estate taxes often remain relevant — seventeen states still impose them at much lower thresholds²
• The focus shifts from "how do we reduce estate tax exposure" to "how do we transfer wealth in a way that serves the family"

Annual gifting: the floor of any strategy

The annual gift tax exclusion is $19,000 per recipient in 2026 ($38,000 for married couples using gift-splitting).¹ Gifts within this exclusion require no gift tax return and don't touch your lifetime exemption.

At $5M+ net worth with multiple children and grandchildren, annual gifting compounds meaningfully:

This is tax-free wealth transfer that requires only organization, not legal complexity. Most families in the $5M–$50M range underuse this lever simply because it isn't systematized.

IRC §2503(e): unlimited direct payments

Separate from the annual exclusion: tuition paid directly to an educational institution and medical expenses paid directly to a provider are fully exempt from gift tax with no dollar limit, and they don't count against the $19,000 annual exclusion.³ Paying a grandchild's $85,000/year private university tuition directly to the school is gift-tax-free on top of the $19,000 annual exclusion gift you make in the same year.

529 plans and superfunding

529 plans allow an accelerated gift tax election: you can contribute up to five years of annual exclusions in a single year per beneficiary and elect to treat it as spread over five years for gift tax purposes.⁴ For 2026:

• Single filer: up to $95,000 per beneficiary (5 × $19,000)
• Married couple: up to $190,000 per beneficiary (5 × $38,000)

A couple with four grandchildren can superfund $760,000 total ($190,000 × 4) in a single year. Invested at 7% annual returns, $190,000 per child compounds to ~$730,000 over 18 years — a full college funding stack with investment income on top, all outside the estate.

SECURE 2.0 §126 added a backstop for overfunded 529s: unused balances can roll to a Roth IRA for the beneficiary, subject to a $35,000 lifetime cap and a 15-year minimum account age.⁵ This reduces the risk of over-funding a 529 for a beneficiary who ends up not needing it for education.

UTMA/UGMA vs trusts: custodial accounts are often wrong for this bracket

UTMA and UGMA accounts are simple custodial accounts that transfer to the child outright at the age of majority (typically 18 or 21 depending on state).⁶ For $5M+ families, this is usually the wrong vehicle for substantial transfers:

• An 18-year-old receiving $500,000 outright has no legal mechanism for parental guidance
• The assets are included in the minor's financial aid calculations
• Kiddie tax applies to unearned income above $2,700 (2026) for minors under 19 (or full-time students under 24) — taxed at parents' rate

A discretionary trust with a trustee (independent or family member) gives the grantor control over timing and purpose of distributions. Common structures:

• 2503(c) minor's trust — must distribute at 21, but simpler to administer for annual exclusion gifting than a standard trust
• Discretionary family trust (spray trust) — trustee has full discretion over who among beneficiaries receives income and principal, timing, and purpose; best for large transfers with multi-generational intent
• Irrevocable life insurance trust (ILIT) — holds life insurance outside the estate, designed to provide liquidity; already covered in the estate planning guide

GRATs: transferring appreciation gift-tax-free

A Grantor Retained Annuity Trust (GRAT) is one of the most efficient tools available at $5M–$50M for transferring appreciation on high-growth assets — private company shares, concentrated stock, or aggressive equity positions — without using any lifetime exemption.⁷

How it works: You transfer an asset to the GRAT. The trust pays you back an annuity stream equal to the original value plus an IRS-prescribed interest rate (the §7520 rate, typically 4–5% in 2025–2026). Anything the asset grows beyond that hurdle rate passes to heirs gift-tax-free at the end of the term. If the asset underperforms, it simply returns to you — a "zeroed-out" GRAT.

When GRATs work:

• Asset has strong expected appreciation (private company pre-exit, concentrated equity, real estate)
• §7520 rate is low relative to expected returns (the lower the hurdle, the easier it is to beat)
• 2- to 5-year terms are common; longer terms increase mortality risk (if grantor dies, GRAT collapses)

The downside: No step-up in basis on assets passing through a GRAT — heirs inherit the grantor's carryover basis. Compare against simply holding assets until death, where the full basis steps up under §1014, before committing. For low-basis positions, a GRAT may save transfer tax while creating a capital gains problem for heirs.

SLATs: giving while retaining indirect access

A Spousal Lifetime Access Trust (SLAT) allows you to make an irrevocable gift to a trust that benefits your spouse — using your lifetime exemption — while your spouse retains access to the assets during their lifetime.⁸ If the trust is designed correctly, the assets exit your taxable estate while remaining accessible via your spouse.

Key risks:

• Divorce risk: If you divorce, you lose indirect access to the assets permanently
• Reciprocal trust doctrine: Both spouses can't make SLATs for each other on the same day with identical terms — the IRS may collapse them. Use different trustees, different terms, different asset classes, and different dates
• Death of the spouse: Assets no longer accessible after spouse dies

SLATs made the most sense before OBBBA when the exemption sunset loomed. With the permanent $15M exemption, the urgency is lower — but SLATs still make sense for estates approaching $15M per person (especially with growing wealth), for state estate tax planning, and for asset protection.

Family Limited Partnerships (FLPs) and valuation discounts

A Family Limited Partnership holds family assets (typically real estate, a business interest, or investment portfolio) and allows the senior generation to gift limited partnership interests to the next generation at a valuation discount — typically 15–35% for lack of marketability and lack of control.⁷

Example: A $10M real estate portfolio inside an FLP. A 20% limited interest might be valued at $1.6M for gift tax purposes rather than the pro-rata $2M, because LP holders can't compel liquidation or control management. Gifting that interest uses only $1.6M of lifetime exemption instead of $2M — a 20% discount.

IRS scrutiny: FLPs are effective but subject to audit challenge if not structured properly. The partnership must have a genuine business purpose beyond tax savings, the assets must actually be transferred (not just paper), and the senior generation should not retain de facto control over LP assets. Requires competent estate and tax counsel.

The harder problem: raising financially capable heirs

Most wealth destruction across generations isn't tax-driven — it's behavioral. The research on inherited wealth finds that outright transfers to unprepared beneficiaries frequently leads to worse outcomes than modest support combined with earned financial independence.⁹

HNW families who successfully preserve wealth across generations typically do several things differently:

• Involve children in family financial decisions early — not in dollar amounts, but in frameworks: how do we think about risk, about spending, about tradeoffs? Annual family meetings with the advisor present normalize financial literacy without requiring disclosure of the full picture
• Match-gift rather than give outright — children earn contributions to accounts based on earned income (e.g., Roth IRA contributions matched by the parents for every dollar the child earns), creating both financial structure and incentive
• Stage distributions by age and demonstrated responsibility — trusts distributing at 25, 30, and 35 give more runway to build maturity before receiving substantial assets
• Separate the family governance layer from the financial plan — a family council or annual family meeting is separate from investment reviews; it addresses values, shared philanthropy, family lending policies, and purpose

Dynasty trusts and the $30M+ threshold

For families approaching or above $30M, a dynasty trust — designed to hold assets for multiple generations without triggering estate tax at each generational transfer — begins to make sense. These trusts can last for very long periods (up to perpetuity in some jurisdictions like South Dakota and Nevada), skip the GST tax for each generation, and require generation-skipping transfer (GST) exemption allocation to fund.

For families in the $5M–$20M range, dynasty trusts are premature; the administrative cost and irrevocability outweigh the benefit. Revisit this structure if the estate approaches $15M per person and significant further growth is expected.

Putting the pieces together

A practical priority sequence for $5M–$50M families building a multi-generational strategy:

1. Systematize annual gifting — set up a gifting calendar, include children's spouses, superfund 529s in a year with large taxable income to reduce overall tax drag
2. Review trust structures vs UTMA accounts — replace custodial accounts with appropriately designed trusts for larger intended transfers
3. Model the GRAT opportunity — if you have high-growth assets (business equity, concentrated stock), a GRAT analysis is worth running before any other transfer mechanism
4. Address state estate tax exposure — if you're in Massachusetts, Oregon, or another low-exemption state and your estate exceeds the state threshold, state-specific planning belongs on the agenda even if federal is fine
5. Build the family governance structure — start with a family meeting cadence; add a mission statement and written distribution philosophy if the family is large enough

A fee-only wealth advisor who specializes in HNW families does more than model portfolios — they quarterback the team: coordinating with the estate attorney on trust language, reviewing beneficiary designations annually, running GRAT and FLP analyses, and facilitating the family conversation that legal structures alone cannot create.

1. IRS — 2026 Tax Inflation Adjustments including OBBBA amendments. Confirms $15M estate/gift/GST exemption (OBBBA permanent); $19,000 annual exclusion; $38,000 gift-splitting for married couples.
2. Tax Foundation — Estate and Inheritance Taxes by State (2026). Seventeen states plus DC impose estate or inheritance taxes at thresholds well below the federal $15M.
3. IRC § 2503 — Taxable Gifts (Cornell LII). §2503(e) excludes direct tuition and medical payments from gift tax with no dollar cap; also governs the annual exclusion and §2503(c) minor's trust rules.
4. SavingForCollege.com — 10 Rules for Superfunding a 529 Plan (2026). $95,000 single / $190,000 married superfunding limits for 2026 based on $19,000 annual exclusion; Form 709 election requirements.
5. IRS — SECURE 2.0 Changes: RMD and 529 Rules. §126 — 529-to-Roth rollover: $35,000 lifetime cap, 15-year minimum account age, annual Roth contribution limit applies.
6. IRC § 2503(c) — Minor's Trusts (Cornell LII). Requirements for gifts to minor's trusts to qualify for the annual gift exclusion; distributions must be permitted at age 21.
7. IRC § 2702 — Special Valuation Rules for GRATs (Cornell LII). Governs grantor retained annuity trusts; present-value formula for retained interest against the §7520 rate.
8. Kitces — SLAT Overview: Benefits, Risks, and Reciprocal Trust Doctrine. Comprehensive analysis of SLAT mechanics, divorce and death risks, and how to avoid the reciprocal trust doctrine.
9. Kitces — Family Governance and Inherited Wealth. Discussion of behavioral factors in generational wealth transfer and family governance structures.

Estate and gift tax values reflect 2026 rules including OBBBA (signed July 2025). §7520 rate changes monthly — verify current rate at IRS.gov when modeling GRATs. Trust structures require estate attorney review; state laws vary. Content is for informational purposes only.