The $15 Million Estate Tax Exemption: What Still Needs Planning

What the 2026 federal exclusion actually means

Section 2010(c) sets the basic exclusion at $15 million and specifies inflation adjustment after 2026. The IRS estate-tax table confirms the 2026 amount. The change followed Public Law 119-21. No scheduled sunset means the current provision has no automatic expiration; Congress can still amend it.

The exclusion operates through the unified transfer-tax credit. Taxable lifetime gifts affect the calculation at death. A household balance-sheet total is not itself a taxable estate, and marriage does not create one combined estate-tax return.

When the $30 million shorthand can mislead

Two people may each have a $15 million basic exclusion in 2026, but their remaining capacity depends on prior transfers and their own facts. At the first death, the unused amount does not automatically become available to the survivor. Portability generally requires an estate-tax return and the election described in Section 2010(c)(5), subject to applicable procedural relief.

A deceased spouse's unused exclusion is distinct from the survivor's inflation-adjusted basic exclusion. Do not simply grow a combined $30 million number indefinitely after a spouse dies. Citizenship, transfer-tax residence, marital deductions and trust ownership also require review; the full U.S. citizen or resident framework cannot be assumed for every international family.

State taxes require a separate, dated calculation

State estate taxes are not governed by the federal $15 million figure. Estate and inheritance taxes also describe different regimes. Use each relevant state's rules, the date of death, domicile, asset location, includible gifts and available deductions. A national count of taxing jurisdictions does not answer a particular estate's liability.

Primary references: Oregon Department of Revenue, Massachusetts estate-tax guide, Washington tables by date of death, New York current rules, New York exclusion-credit mechanism, and Illinois Attorney General estate-tax instructions.

A move does not automatically remove exposure from property left behind. For example, New York's published nonresident filing rule expressly addresses real or tangible property in the state. Document each asset's ownership and location before concluding that a change of address or an entity transfer resolves the issue.

Appreciation can outpace exclusion growth

Investment growth is uncertain. To isolate the arithmetic, assume two living individuals start with $30 million of combined assets, have used none of their basic exclusions, and their assets grow by 7% annually. Select 2.5% annual growth in their combined exclusion as a modeling assumption, not a forecast of future IRS amounts. Ignore gifts, spending, debt, deductions, deaths and taxes in this illustration.

Assets after n years = 30,000,000 * 1.07^n
Modeled combined exclusions = 30,000,000 * 1.025^n
Difference = assets minus modeled combined exclusions

The difference appears in year 1 under these inputs. It is not an estate-tax assessment. The figures are rounded independently, and actual tax depends on who owns and transfers the assets, the time of death and the applicable law.

What a 40% tax example must specify

Under the current Section 2001 rate schedule, an individual with a $60 million taxable estate, no adjusted taxable gifts and a fully available $15 million exclusion would have a simplified federal calculation of 40% of $45 million, or $18 million. If the applicable exclusion were instead $30 million because the individual also had $15 million of valid deceased-spousal unused exclusion, the simplified result would be $12 million. These examples assume no other credits or adjustments. They cannot be applied to a $60 million gross household balance sheet without the underlying estate calculation.

Transfer techniques still require a cost and control comparison

GRATs, sales to grantor trusts and preferred-interest planning can address future appreciation, but a larger exclusion does not establish a defensible valuation, adequate consideration or acceptable retained powers. Compare the specific transaction, administration, liquidity and family access. The estate-freeze guide examines these structures.

Include income-tax basis in that comparison. Lifetime gifts generally follow carryover-basis rules, while qualifying property acquired from a decedent generally follows Section 1014, subject to its exceptions. Reducing estate inclusion can change an expected basis adjustment. Section 1015; Section 1014.

GST exemption can be allocated automatically, but still needs review

Section 2631 ties the generation-skipping transfer (GST) exemption to the basic exclusion, giving a $15 million amount in 2026 before prior allocations. It is separate from the estate and gift credit and does not include deceased-spousal unused exclusion.

Section 2632 provides deemed allocations for specified lifetime direct skips, certain transfers to GST trusts and unused exemption at death. Elections and trust-definition exceptions matter. The practical task is to determine what was allocated, whether automatically or affirmatively, and whether that allocation matches the intended plan.

1. Identify the transferor, each contribution and its date.
2. Reconcile available exemption with prior returns and allocation elections.
3. Determine whether the automatic rules applied or an election changed them.
4. Check the trust's inclusion ratio and any estate-tax inclusion period affecting timing.
5. Test later additions, powers and distributions before assuming the original result continues.

A zero inclusion ratio can shelter covered generation-skipping transfers from GST tax under the applicable rules. It does not certify that all future income, estate or other transfer taxes vanish. Allocation timing, valuation and additions are governed in part by Section 2642.

A GST-exempt trust can own life insurance, but the policy's income-tax treatment and estate inclusion remain separate inquiries. See dynasty trusts and PPLI and the generation-skipping trust guide.

Insurance can fund a need, but payment and tax treatment are conditional

Liquidity: match available cash to actual deadlines

The federal estate-tax return is generally due nine months after death under Section 6075(a). Tax generally is due at the prescribed filing time without regard to an extension to file under Section 6151. Payment extensions and special provisions, including Section 6166 for qualifying closely held business interests, require their own eligibility analysis.

An expected death benefit is not cash already available to the estate. Confirm the beneficiary, assignments, claim requirements, likely processing dependencies and interim funds. If proceeds are payable to a trust, establish whether and how the trustee may provide estate liquidity. Keep that authority separate from any assumption that the executor directly owns the proceeds.

Tax treatment: separate income exclusion from estate inclusion

Private placement life insurance can provide qualifying internal tax deferral and death proceeds within the general Section 101(a) exclusion. Product qualification, investment compliance and statutory exceptions remain relevant. Estate inclusion depends on matters such as proceeds payable to the executor and incidents of ownership under Section 2042, with certain recent transfers addressed by Section 2035.

Conventional life insurance may also provide death-benefit funding. Compare its actual guarantees and costs with PPLI's investment options, charges, risks and oversight needs. The federal exclusion alone does not establish which contract, if any, is appropriate.

Governance: document powers and discretion

A trust-owned policy does not necessarily fix every beneficiary's share or prevent disputes. The trust may allow discretionary distributions or powers of appointment, while the policy separately identifies its contractual beneficiary. Reconcile those documents, successor authority, funding obligations and conflict procedures.

The 2026 estate-planning review file

• Federal calculation: ownership, prior taxable gifts, remaining credit, marital provisions and portability records.
• State map: domicile, property location, relevant dates, thresholds, deductions and filing obligations.
• Growth scenarios: explicit returns, spending, gifts, law assumptions and ownership changes.
• GST record: allocation history, elections, inclusion ratios and planned additions.
• Funding comparison: tax deadlines, available liquid assets, insurance claim dependencies and any financing conditions.
• Implementation decision: the proposed action, responsible adviser, required documents and the event that triggers another review.

Use these records as the basis for a family briefing. Review existing policies against current needs before replacing, surrendering or redesigning them. Neither a larger exclusion nor a projected tax shortfall is enough on its own to justify a transaction.

Explore the estate-planning framework and estate-planning articles, or send an estate-planning question with the relevant jurisdiction and issue.

2026 exclusion questions