Insurance Curator High-net-worth estate planning increasingly relies on life insurance held in an Irrevocable Life Insurance Trust (ILIT) to provide liquidity, neutralize estate taxes, and preserve net-family-wealth. This article gives a practical, US-focused, step-by-step financial model (with worked examples and a comparison table) to quantify the net-wealth impact of using an ILIT versus leaving insurance in the estate — with attention to New York, California, and Texas fiduciary and tax considerations.
Executive summary (what you’ll get)
- A replicable model you can run for any US jurisdiction
- Inputs, formulas, and illustrative numbers for a large estate
- Scenario comparison: No ILIT, ILIT-funded (annual gifts), and premium-financed ILIT
- Sources and links to related case studies and advisor tools
Key assumptions and tax basics (US context)
- Federal estate tax: top rate assumed at 40% on taxable estate above the unified credit. (Check current exemption amounts for the tax year you model.)
- State estate/inheritance tax: New York has a state estate tax with a much lower exemption (important for NY taxpayers). California and Texas have no state estate tax (California has no estate tax; Texas has none).
- ILIT treatment: when properly drafted and administered (including lapse of Crummey notices where required), the policy death benefit is generally excluded from the insured’s estate, providing liquidity to pay taxes without increasing estate tax.
- Premium funding: ILITs can be funded by annual gifts (Crummey power), lump single-premium gifts, or premium financing. Gift-tax considerations and annual exclusion use must be modeled.
External references for baseline tax and cost context:
- IRS — Estate Tax: https://www.irs.gov/businesses/small-businesses-self-employed/estate-tax
- Life insurance cost guides (industry pricing context): https://www.policygenius.com/life-insurance/life-insurance-rates/, https://www.nerdwallet.com/article/insurance/how-much-life-insurance-costs
Step-by-step modeling framework
Step 1 — Inputs (example client: New York-based couple)
- Gross estate (assets) = $80,000,000
- Debts/administration = $2,000,000
- Net estate before exemption = $78,000,000
- Federal exemption (per individual) = use current year value (model uses $13.61M as an example; adjust for current year)
- Combined exemptions (spousal portability not assumed) = $27,220,000
- Desired insurance death benefit to fund tax/liquidity: $30,000,000 (survivorship policy)
- Estimated annual premium to fund SUL (illustrative): $350,000 / year (level premium)
- Alternative funding: single-premium of $4,500,000 (illustrative)
- Estate tax rate (federal) = 40%
- State estate tax: assume NY with low exemption (model focuses on federal for clarity; add NY tax per local schedule when needed)
Step 2 — Baseline: No ILIT (insurance in estate or no insurance)
- Taxable estate = Net estate before exemption − combined exemptions
= 78,000,000 − 27,220,000 = $50,780,000 - Federal estate tax = 40% × 50,780,000 = $20,312,000
- Net-family-wealth after federal estate tax = Net estate before exemption − federal estate tax
= 78,000,000 − 20,312,000 = $57,688,000 - If life insurance death benefit (e.g., $30M) is in the deceased’s estate, it increases the taxable estate and likely increases the tax — adding complexity and potential tax on the insurance proceeds.
Step 3 — ILIT-funded scenario (annual premium gifts)
- ILIT holds $30M survivorship policy; death benefit excluded from estate.
- Family funds premiums via annual Crummey gifts: $350,000 / year (for modeling simplicity assume funded for 20 years or until death; actual premium schedule varies)
- Gifts use annual gift exclusion and/or generate gift-taxable amounts that may use lifetime GST exemptions (advisor decision).
- For modeling, assume premium giftees are paid with annual cash outside the estate and no additional gift tax (using annual exclusion/GST planning). If lifetime exemptions are used, track reduction in exemption.
- At death:
- Estate taxable amount = 78,000,000 − 27,220,000 = 50,780,000 (unchanged because ILIT proceeds excluded)
- Federal estate tax = $20,312,000
- ILIT death benefit to beneficiaries = $30,000,000
- Net-family-wealth after tax = (Net estate after tax) + ILIT proceeds − cumulative premium cost (NPV)
= 57,688,000 + 30,000,000 − PV(premiums paid to date)
- If premiums total (NPV) $3,500,000 (10-year PV @ discount), then net-family-wealth ≈ $84,188,000.
Step 4 — Premium financing scenario (bank borrowed premium)
- Bank lends the ILIT premiums; the ILIT borrows and pays loan interest; at death, loan outstanding repaid from proceeds before residual paid to beneficiaries.
- Advantages: maintain liquidity while preserving capital elsewhere. Risks: interest rate risk, credit, margin calls.
- Example: single initial loan for single-premium of $4,500,000 vs. using family capital of $4,500,000.
- Net-family-wealth must incorporate loan cost and interest: if cumulative financing cost (NPV) = $1,200,000, then net benefit reduces accordingly.
Illustrative comparison table (simplified)
| Scenario | Estate tax paid (federal) | ILIT death benefit to family | Net-family-wealth (approx.) |
|---|---|---|---|
| No ILIT (baseline) | $20,312,000 | $0 (or in-estate, taxable) | $57,688,000 |
| ILIT — annual premiums ($350k) | $20,312,000 | $30,000,000 | $84,188,000 (after PV premiums) |
| ILIT — premium financed (single-premium $4.5M) | $20,312,000 | $30,000,000 − loan outstanding | ~$82,988,000 (after loan interest cost) |
Notes:
- Table uses illustrative PVs and assumes ILIT death benefit is fully excluded from the insured’s estate.
- State estate tax (NY) would lower net-family-wealth in all scenarios for NY residents; Texas/California differences should be modeled separately (California no estate tax; Texas no estate tax).
Practical model formulas (copyable)
- Taxable estate = Gross estate − debts − exemptions
- Federal estate tax = max(0, (Taxable estate) × federal_rate)
- Net estate after tax = Net estate before exemption − federal estate tax
- Net-family-wealth with ILIT = Net estate after tax + ILIT death benefit − PV(total premiums or financing costs) − gift-tax (if any)
- NPV of premiums = sum_{t=0..n} Premium_t / (1 + r)^t (choose r = advisor discount rate; 3–6% typical)
Where ILITs add value — decision drivers
- Liquidity to pay federal (and state) estate taxes without forcing asset sales (real estate, family businesses)
- Estate-free death benefit preserves net-family-wealth and can equalize bequests across heirs
- GST planning and dynasty trust integration for multi-generation wealth transfer
- Premium financing can accelerate coverage for time-sensitive tax windows (but adds interest and collateral risk)
Pricing and carrier notes (US market context)
- Survivorship (second-to-die) universal life or survivorship whole life are common ILIT-friendly products. Major carriers used in HNW markets include Prudential, MassMutual, Pacific Life, and Northwestern Mutual.
- Pricing variability:
- For a healthy 60-year-old couple, a $10M second-to-die policy can span a wide range. Illustrative advisory ranges seen in practice: $100k–$300k/year for annual premiums depending on product, underwriting and credited interest assumptions; single-premium options often range $1M–$5M.
- Carriers publish product specs and large-case underwriting options; brokers commonly shop carriers to obtain competitive pricing and credited interest assumptions.
- For consumer-facing rate context see:
- Policygenius — Life insurance rates and factors: https://www.policygenius.com/life-insurance/life-insurance-rates/
- NerdWallet — How much life insurance costs: https://www.nerdwallet.com/article/insurance/how-much-life-insurance-costs
(Important: the numbers above are illustrative ranges — obtain firm quotes from carriers or a broker for underwriting-specific accurate pricing for your clients in New York, California, or Texas.)
Integration with related analyses and tools
For deeper scenario testing and tools, see these related case studies and modeling resources:
- Modeling Estate Tax Outcomes: Insurance vs Gifting — A Side-by-Side Case Study
- Premium Financing Stress Test: Real-World Scenario Analysis for a $50M Estate
- Survivorship Policy Modeling: When Second-to-Die Coverage Beats Single-Life Solutions
Key risks and implementation steps
- Draft ILIT properly (Crummey powers, trustee independence, funding mechanics).
- Coordinate gifts, keep gift-tax records, and consider GST exemption strategy.
- Policy ownership timing: purchases within 3 years of death require special attention to estate inclusion rules (lookback in some jurisdictions).
- Stress‑test interest-rate sensitivity for premium-financed ILITs and run mortality-performance scenarios.
Suggested immediate advisor steps:
- Run the model with client-specific inputs (age, health, jurisdictions).
- Obtain 3–5 carrier firm quotes for SUL or survivorship products.
- Evaluate gift-tax vs. financing tradeoffs and document ILIT governance.
Quantifying an ILIT’s net-family-wealth impact requires accurate inputs and scenario testing. Use the formulas above and adapt state-specific taxes (NY vs Texas vs California) to compute client-specific outcomes, and obtain carrier quotes for precise premium figures before making a funding recommendation.