Dynasty Trust: Wealth That Passes Across Generations Without Tax at Each Step

Why Dynasty Trusts Exist

Without dynasty planning, wealth passing across generations faces multiple tax events:

Generation 1 (Grantor) → Generation 2 (Children): estate tax at G1’s death on amounts above exemption (40% federal rate currently).

Generation 2 → Generation 3 (Grandchildren): estate tax at G2’s death on amounts above their exemption.

Generation 3 → Generation 4: another estate tax.

If G1 leaves $10M to children, who let it grow to $40M before dying, then to grandchildren who grow to $100M before death — each generation pays estate tax on the amount above exemption.

Estate tax compounded across generations: a $10M starting amount can be reduced by 40-50%+ across two or three generations through repeated taxation.

Generation-Skipping Transfer Tax (GST):

IRC §2601 imposes GST tax (40% rate, separate from estate/gift tax) on transfers to ‘skip persons’ — persons two or more generations below the grantor.

Without GST exemption: transferring assets directly from G1 to grandchildren would trigger GST tax in addition to gift/estate tax. Effective tax rate: ~58% (40% estate + 40% GST on the after-estate-tax amount).

GST exemption: $13.99M per person in 2025 (same as estate tax exemption). Allows transfer of up to $13.99M to grandchildren or further descendants without GST tax.

Dynasty trust uses GST exemption: assets allocated to dynasty trust are ‘GST-exempt’ — protected from GST tax at all future generational transfers.

Dynasty trust benefit:

Funded with $13.99M using GST exemption.

If trust grows to $100M over 40 years (compounding at 5% real growth): the $100M remains outside estates of children, grandchildren, etc. No estate tax at each generational transfer. No GST tax.

Tax savings vs. unprotected wealth: $40M+ of estate tax avoided across multiple generations on the $100M growth.

This is the power of dynasty trusts: compounding tax-free growth across generations.

Trust Duration and State Law

Dynasty trust duration depends on state law. The Rule Against Perpetuities (RAP) historically limited trust duration to ‘lives in being plus 21 years’ (typically 80-90 years from creation).

Many states have abolished or modified RAP for trust purposes, allowing longer or perpetual trusts:

Perpetual trust jurisdictions (no RAP):

– South Dakota (no RAP)

– Delaware (1,000-year trusts allowed)

– Nevada (365-year trusts)

– Alaska (perpetual)

– Wyoming (1,000-year)

– New Hampshire (perpetual)

– Tennessee (360-year)

Limited duration (modified RAP):

– Florida (360-year)

– Maryland (300-year)

– Many other states (90-year or extended periods)

Traditional RAP states:

– New York (lives in being + 21 years, with some exceptions)

– California (modified RAP — 90 years)

– New Jersey (modified)

Jurisdictional choice:

Wealthy families often establish dynasty trusts in perpetual-trust states (South Dakota, Delaware, Nevada, etc.) to make the most of duration.

Choosing trust situs:

– Trust document specifies governing state law – Trustee should be located in chosen jurisdiction (or have substantial nexus) – Some assets may need to be located in chosen jurisdiction – Annual administration costs (trustee fees) factor in For New York-resident grantors: trust can be governed by South Dakota or Delaware law even though grantor lives in NY. State has substantial trust-friendly law; trustee in that state.

Tax implications of trust situs:

– Federal income tax: federal rules apply regardless of state – State income tax: some states (NY) tax trusts based on grantor’s residence or beneficiary location; others (South Dakota, Delaware) don’t tax trust income – State estate tax: trusts in low-tax states avoid state-level wealth tax For families with substantial wealth in high-tax states (NY, CA, etc.): South Dakota or Nevada situs avoids state taxation on trust income.

Annual savings can be substantial: 5-10% state income tax on trust earnings × decades of compounding = millions of saved tax.

Funding the Dynasty Trust

Funding mechanics:

1. Grantor allocates GST exemption to trust at funding (Form 709 election).

2. Trust is now ‘GST-exempt’ — protected from GST tax at future transfers to skip persons.

3. Trust grows over time; distributions to beneficiaries don’t trigger GST or estate tax.

Funding amounts:

2025 GST exemption: $13.99M per person.

Married couple can fund up to $27.98M (using both spouses’ exemptions).

2026 (without extension): exemption sunsets to ~$7M per person.

Use-it-or-lose-it: 2025 represents final opportunity to use higher exemption before sunset.

What to fund:

Same considerations as SLAT (see SLAT guide):

– Appreciating assets (long-term growth) – Closely-held business interests (with valuation discounts) – Real estate (appreciating) – Securities expected to grow

Less ideal:

– Cash or money market (limited growth) – Bonds (modest growth) – Assets needed for current liquidity

Valuation discounts: minority interest, lack of marketability discounts on closely-held business interests can extend the effective funding (e.g., $13.99M of exemption supporting $18-23M of underlying value).

Timing: ideally well before December 31, 2025 to lock in current exemption. Late-year planning carries execution risk.

Subsequent funding: trust can receive additional gifts in future years (using lifetime exemption, annual exclusion, or paying gift tax) if more wealth transfer desired.

Dynasty Trust Structure

Trust document key provisions:

1. Beneficiaries: children, grandchildren, great-grandchildren, etc. May include spouses of descendants.

Class of beneficiaries: defined now, may include after-born descendants.

2. Trustee provisions:

Initial trustee, successor trustees, trustee selection process for distant future generations.

Often: institutional trustee for stability + family member co-trustee for relationship management.

3. Distribution standards:

Most common: HEMS (Health, Education, Maintenance, Support) discretionary standard.

Some trusts: more flexible discretionary distribution standards.

Some trusts: specific distributions at ages (e.g., 1/3 at 25, 1/3 at 30, 1/3 at 35).

Mandatory distribution at certain age (rare for dynasty trusts; defeats long-term protection).

4. Powers of appointment:

Limited powers of appointment may allow beneficiaries some discretion to redirect assets among classes of beneficiaries without triggering GST tax.

General powers of appointment should be avoided (would cause estate inclusion in beneficiary’s estate).

5. Investment provisions:

Trust portfolio diversification, investment management, risk tolerance over multigenerational period.

Trustee duties to diversify (Modern Portfolio Theory adoption in most states).

6. Distribution to non-skip persons (children):

Distributions to grantor’s children don’t trigger GST. But children’s beneficial interest may include trust corpus, potentially exposing it to estate tax in their estate if not structured carefully.

Solution: limit children’s interest to discretionary HEMS distributions, not corpus reach. Trust corpus remains protected.

7. Spendthrift provisions:

Protect trust assets from beneficiary’s creditors, divorces, lawsuits. Most dynasty trusts include strong spendthrift provisions.

8. Modification provisions:

Allow some flexibility for changing circumstances (tax law changes, family dynamics).

Common: ‘decanting’ provisions allowing trustee to distribute to new trust with modified terms; ‘protector’ role for limited modification authority.

9. State law selection:

Specify governing state law.

Trust situs may move over generations if needed for tax efficiency.

Tax Treatment During Trust Operation

Federal income tax during grantor’s lifetime:

Most dynasty trusts are grantor trusts (grantor pays income tax) during grantor’s lifetime. Reasons:

– Grantor trust status under §674-679 allows tax burn benefit – Grantor pays tax from outside trust; trust grows tax-free – Effectively additional gift to beneficiaries (without using exemption)

Common grantor trust triggers:

– Power to substitute property (§675) – Power held by non-adverse party (§674) – Income payable to grantor’s spouse (§677) – Foreign trust provisions (§679)

After grantor’s death: grantor trust status typically terminates. Trust becomes its own taxpayer.

Trust income tax:

– Compressed brackets: 37% top federal rate at ~$15,200 of trust income (2024-2025) – State income tax: depends on trust situs (none for South Dakota, Delaware, etc.) – NIIT applies to trust at lower threshold (~$15K)

Distributable Net Income (DNI):

Trust can deduct distributions of income to beneficiaries (Distributable Net Income).

Distribution shifts income tax from trust to beneficiary (at beneficiary’s typically lower individual rates).

Strategy: distribute income to beneficiaries at lower rates; retain capital gains in trust for compounding growth.

Capital gains: typically NOT distributable as DNI (stay in trust); taxed at trust rates.

Some trusts: ‘unitrust’ provisions converting income/principal characterization (allowing capital gains to be distributable).

Federal estate and GST tax on trust transfers:

Distributions to non-skip persons (children): no estate or GST tax. Distributions are not estate inclusion events for child.

Distributions to skip persons (grandchildren): generally GST-exempt because trust was allocated GST exemption.

Distribution back to grantor: would terminate exemption status. Avoid.

Trust terminations at duration limit: if state law requires termination after years/decades, the trust distributes per terms. GST treatment depends on whether GST exemption was properly allocated and structure followed.

Pre-2026 sunset planning:

2025 GST exemption: $13.99M per person. 2026 (without extension): ~$7M.

For couples wanting to use full 2025 exemption: dynasty trust funding in 2025 with both spouses’ exemptions = $27.98M of GST-protected trust assets. Compared to 2026 of $14M, $13.98M of additional protection.

Over 50+ years: that $13.98M compounding at 5% real growth = ~$220M of additional protection.

Trustee Considerations

Selecting trustees for multi-generational trust is complex:

Lifetime of grantor: institutional trustee + family co-trustee common. Grantor may informally guide.

After grantor’s death: successor trustees take over. Trust document specifies how:

– Named successors – Family selection process (oldest descendant of grantor; majority vote of adult beneficiaries; etc.) – Trust protector role (limited modification authority)

Over multiple generations: trustee role may change. Initial trustees retire/die. New trustees needed.

Common patterns:

1. Institutional trustee as ‘anchor’ across generations. Bank or trust company provides continuity. Family co-trustee changes with each generation.

2. Family trustee with institutional advisor. Trust property in family hands but professional advisor for guidance.

3. Multiple independent co-trustees. Multiple individuals from different families or backgrounds, providing checks and balances.

Trustee fees:

– Institutional: 0.5-1% of trust assets annually for typical trusts; lower for very large trusts – Independent professional: $5K-$25K annually for individual – Family trustees: typically no fee, or minimal For $20M trust: institutional fee of 0.5% = $100K/year. Over 50 years: $5M+ of trustee fees.

For very large trusts ($100M+): negotiate lower fee rates with institutions.

Trustee duties:

– Prudent investment management – Distribute per trust terms – File trust tax returns – Maintain records – Communicate with beneficiaries – Coordinate with successor trustees Multi-generational continuity: the trustee role spans generations. Document and process matter.

Family communication: dynasty trusts work best with family communication, not secrecy. Beneficiaries should understand trust purpose, rules, and process.

Distribution Strategies

How distributions work over generations:

Tier 1 — Grantor’s children:

Children typically receive HEMS distributions (health, education, maintenance, support) as needed during their lives.

Trust corpus typically NOT distributable to children outright (would expose to their estate tax).

Children benefit from trust assets through discretionary distributions while alive.

Tier 2 — Grandchildren:

At children’s death (or earlier if trust allows), grandchildren become primary beneficiaries.

GST exemption protects against tax even on direct grandchild distributions.

Grandchildren receive HEMS or discretionary distributions during their lives.

Tier 3 — Great-grandchildren and beyond:

Pattern continues. Each generation receives discretionary support; trust corpus stays protected.

Distribution strategies:

1. HEMS standard: trustee has discretion within health/education/maintenance/support standard. Most common.

Pros: clear standard for trustee; defensible to IRS Cons: requires interpretation; may not match every family situation

2. Fully discretionary: trustee has complete discretion.

Pros: maximum flexibility Cons: trustee judgment varies; beneficiaries may feel uncertain

3. Specific distribution rights:

Beneficiary has right to specific distribution (e.g., college tuition, healthcare). Limited to specific purposes.

Pros: predictability Cons: less flexibility for changing circumstances

4. Unitrust distributions:

Annual distribution = % of trust assets (e.g., 4%). Predictable; aligns with portfolio income.

Pros: smooth income stream; aligns with portfolio management Cons: may not match actual needs

5. Specific age distributions:

Some trusts give beneficiaries outright distributions at specific ages (25%, 30%, 35%, full at 40, etc.). Less common for dynasty trusts since outright distributions defeat long-term protection.

Strategy mix: most dynasty trusts use HEMS for protection + additional discretionary trustee authority for flexibility. Modern trusts add unitrust provisions for predictable income.

Beneficiary education: beneficiaries should understand trust purpose and limits. Avoid ‘trust fund baby’ dynamics by providing meaningful but bounded distributions.

Distribution timing: trustees typically distribute as needed. Some trusts require annual review of distribution requests.

Combining Dynasty Trust with Other Vehicles

Dynasty trust is part of broader estate planning:

Dynasty trust + GRAT:

GRAT transfers appreciation to family with zero exemption. Remainder can pour into dynasty trust (already GST-exempt). Combines two strategies.

Dynasty trust + SLAT:

SLAT for spouse access + dynasty trust for non-spouse beneficiaries. Different vehicles for different family members.

Dynasty trust + ILIT:

Life insurance proceeds payable to dynasty trust. Insurance proceeds become GST-exempt; pass to grandchildren and beyond tax-free.

Dynasty trust + FLP (Family Limited Partnership):

FLP holds family business interests with valuation discounts. FLP interests transferred to dynasty trust. Discounts make the most of exemption use.

Dynasty trust + IDGT (Intentionally Defective Grantor Trust):

Sale of assets to dynasty trust for installment note. Grantor maintains income from note; trust holds appreciated assets. Combined wealth shift.

Dynasty trust + charitable trusts:

Some dynasty trusts include charitable remainder provisions. Family benefits during defined period; charitable purpose after.

Common thorough plan for $50M+ family:

1. ILIT for life insurance ($5-10M policy) 2. SLAT for one spouse’s exemption ($13.99M) 3. Dynasty trust funded with second spouse’s exemption ($13.99M) 4. GRATs for ongoing transfers without exemption use 5. FLP holding business interests with discounts 6. Personal retention of some assets for liquidity and step-up basis Total effect: substantial estate tax savings; multi-generational protection; family business preservation; flexibility for family needs.

Cost: thorough plan $50K-$200K initial; $10K-$50K annual maintenance. For estates $50M+, ROI is typically positive.

Common Dynasty Trust Mistakes

Issues we see:

1. Inadequate GST exemption allocation. Without proper GST election, distributions to grandchildren trigger 40% GST tax. Must allocate GST exemption explicitly on Form 709.

2. Mixing GST-exempt and non-exempt funds. Once GST exemption used on a trust, additional non-GST funding ‘mixes’ the trust. Best practice: separate trusts for exempt and non-exempt portions.

3. Improper trustee selection. Family disputes, trustee deaths without succession, conflicts of interest can disrupt long-term operations.

4. Distribution mechanics defective. Distributions to children that exceed HEMS standard may trigger estate inclusion at child’s death.

5. Grantor retaining incidents of ownership. Power to revoke trust, change beneficiaries, etc. defeats estate tax planning.

6. Inadequate spendthrift provisions. Beneficiary creditors, divorces can reach trust assets if not properly protected.

7. State law jurisdiction wrong. Trust governed by RAP-restricted state may terminate prematurely.

8. Investment management neglect. Trust assets need ongoing portfolio management. Set-and-forget doesn’t work for multigenerational growth.

9. Family communication failure. Beneficiaries unaware of trust purpose, expectations create resentment and confusion.

10. Not reviewing periodically. Tax law changes, family changes, asset changes — regular review (every 5-10 years) needed.

Professional team:

– Estate planning attorney specialized in dynasty trusts – CPA experienced with trust tax – Trustee (institutional, family, or both) – Investment manager for trust assets – Possibly: family business advisor, family wealth coordinator Cost: dynasty trust establishment $20K-$75K for legal. Annual administration $10K-$50K depending on complexity.

For substantial wealth ($25M+): worth investment many times over.

Long-Term Considerations

Dynasty trusts span decades. Multi-generational considerations:

Family dynamics evolve:

Grandparents fund the trust. Grandchildren they may never know will be primary beneficiaries. Future generations may have different values, needs, opportunities than grandparents anticipated.

Trust drafting flexibility:

Modern dynasty trusts include flexibility provisions: – Trust protector role (modify trust within bounds) – Decanting authority (move assets to new trust with modified terms) – Beneficiary advisory committees – Periodic review and modification provisions Tax law evolves:

GST exemption may change. Estate tax exemption may change. State estate taxes may emerge or disappear.

Trust must be drafted to accommodate tax law changes over decades. Tax flexibility provisions are essential.

Asset composition changes:

Initial funding may be tech stocks; in 50 years, portfolio may need different composition. Trustee’s investment authority must be adequate.

Family business may sell. Real estate may be developed. Cash position may grow.

Trust structure should accommodate diverse asset evolution.

Charitable purposes:

Many dynasty trusts include charitable remainder provisions or family foundation distributions. Family values evolve; charitable purposes should have flexibility.

Family education:

Beneficiaries should understand trust history, purpose, and rules. Family meetings, educational programs for next generations.

Without education, beneficiaries may resent the trust or fail to make the most of its value. With education, families build cohesion across generations.

Trustee continuity:

Institutional trustees provide continuity but lack personal family knowledge. Family trustees provide knowledge but may not survive across generations.

Co-trustee approach combines both: institutional anchor + family voice across generations.

Documentation:

Trust history, decision records, beneficiary communications should be archived. Future generations need context for trust decisions and family history.

Investment for long-term family wealth: dynasty trust establishment cost is significant but pales compared to ongoing tax savings over generations. For wealthy families seeking multigenerational wealth preservation, dynasty trusts are essential infrastructure.