New York Estate Tax Cliff Explained and How to Plan Around It

What Is the New York Estate Tax Cliff?

Once a taxable estate exceeds 105% of New York's basic exclusion amount, the exemption disappears entirely and the full estate is taxed from the first dollar. No other state in the country has this provision.

For deaths occurring in 2026, the basic exclusion amount is $7,350,000 per individual. The cliff triggers at exactly $7,717,500 (105% of $7,350,000). Below that number, only the excess above the exclusion is taxed. Above it, the exemption vanishes and New York applies its graduated rate schedule (3.06% to 16%) to the entire estate.

This "cliff" was introduced as part of a 2014 overhaul of New York's estate tax law under Tax Law Article 26, §952. Before the reform, New York's exemption was just $1,000,000. The legislature raised the exemption substantially but added the 105% phase-out as a revenue backstop. The result: families in a specific value range face a uniquely harsh outcome.

The good news is that the cliff is largely avoidable with proactive planning. When couples and families understand the numbers early, they can build an estate plan that creates clarity about how assets pass to the next generation, without leaving hundreds of thousands of dollars on the table.

How Does the 105% Rule Work in New York?

The exemption credit phases out between 100% and 105% of the basic exclusion amount. At exactly 105%, the credit hits zero and the full estate is exposed to tax.

Here's how the mechanics break down in plain English:

Zone 1: At or below the exclusion ($7,350,000 in 2026). No New York estate tax. No return required unless the federal gross estate plus includible gifts exceeds the exclusion.

Zone 2: The phase-out zone ($7,350,001 to $7,717,500). New York calculates a tentative tax on the full estate, then applies a credit that offsets most of it. Only the amount above the exclusion is effectively taxed. The credit shrinks as the estate gets closer to 105%.

Zone 3: Over the cliff ($7,717,501 and above). The credit disappears completely. The full estate is taxed through New York's graduated rate schedule, which starts at 3.06% on the first $500,000 of taxable value and climbs through multiple brackets to a top rate of 16% on amounts above $10,100,000.

The New York State Department of Taxation and Finance requires executors to file Form ET-706 within nine months of the date of death when the federal gross estate (plus any includible gifts) exceeds the basic exclusion amount. Extensions are available but don't extend the time to pay.

One important detail: New York has no gift tax, but gifts made within three years of death are added back to the taxable estate under §952(c). This "claw-back" rule means that deathbed gifting strategies won't work to get below the cliff. Gifts need to be made well in advance, and annual-exclusion gifts and charitable gifts are excluded from the add-back.

New York Estate Tax Cliff Examples and Thresholds

A small increase in estate value can create a wildly disproportionate jump in tax. The table below illustrates this using 2026 figures.

The most striking comparison: the difference between a $7,700,000 estate and a $7,720,000 estate is $20,000 in value but more than $639,000 in tax liability. That single data point explains why families in this range treat the cliff as the single most important number in their estate plan.

You might also notice that a $7,720,000 estate actually pays more tax than an $8,000,000 estate. That's because the $8,000,000 estate has always been above the cliff. Its tax is calculated through the normal graduated schedule. The $7,720,000 estate, by contrast, just barely crossed the cliff and lost the benefit of a $7,350,000 exemption. The marginal tax rate in that narrow band is effectively astronomical.

What Counts in Your Taxable Estate?

Your New York taxable estate includes more than most people expect:

• Real estate (including co-ops, condos, and investment properties)
• Retirement accounts (IRAs, 401(k)s, pensions)
• Brokerage and bank accounts
• Business interests (partnerships, LLCs, S-corps, sole proprietorships)
• Life insurance if you own the policy (the death benefit is included at full face value)
• Personal property (vehicles, art, jewelry, collections)

For families in the New York City metro area, appreciated real estate is often the factor that pushes estates toward or over the cliff. A brownstone purchased in Brooklyn for $800,000 in 2005 that's now worth $3,500,000 adds that full current value to the estate.

New York vs. Federal Estate Tax and the Missing Portability

New York's exemption is less than half the federal exemption, and unlike the federal system, New York offers no spousal portability. This means a married couple can lose one spouse's entire state exemption if they don't plan.

The portability gap is the detail that catches the most couples off guard. Under federal law (reinforced by the One Big Beautiful Bill Act), a surviving spouse can elect to use the deceased spouse's unused exemption (DSUE), effectively doubling the couple's combined federal shelter to roughly $30,000,000 in 2026. New York has no equivalent.

Without planning, when the first spouse dies and leaves everything to the surviving spouse (common for married couples), the marital deduction eliminates any immediate New York estate tax. But the first spouse's $7,350,000 exemption is wasted. When the surviving spouse later dies, only their own $7,350,000 exemption applies. If the combined estate exceeds that, the cliff can apply to the full amount.

This is why couples who plan together benefit from addressing the exemption early. A credit-shelter trust (also called a bypass trust) funded at the first spouse's death can capture that spouse's exemption, keeping those assets out of the surviving spouse's taxable estate.

The three-year gift add-back rule deserves extra attention here. Because New York has no gift tax, families sometimes assume they can simply give assets away to get below the cliff. They can, but only if they survive more than three years after the gift. Gifts made within that window are pulled back into the taxable estate. Annual exclusion gifts ($19,000 per recipient in 2025 under IRS guidelines) and direct charitable contributions are excluded from the add-back.

How to Plan Around the New York Estate Tax Cliff

Families work with attorneys, CFPs, and CPAs to stay below the cliff using a combination of trust structures, gifting strategies, valuation planning, and charitable tools. No single strategy fits every family, and each involves trade-offs.

The Charitable Savings Clause in Action

A charitable savings clause is a formula-based provision in your will or revocable trust that directs a charitable gift only if your estate would otherwise exceed the cliff threshold. Here's a simplified illustration:

• Taxable estate at death: $7,718,000
• Cliff threshold (2026): $7,717,500
• Amount over the cliff: $500
• Without the clause: the entire $7,718,000 is taxable. Approximate tax: ~$650,000+
• With the clause: a charitable bequest of $368,000 reduces the taxable estate to $7,350,000. Tax: $0. Net savings to heirs: roughly $282,000 (the $650,000 in tax minus the $368,000 charitable gift)

The math depends on the exact estate value, but the principle is the same: it's often far better for a family to direct a planned charitable gift than to lose a much larger amount to taxes. The clause activates only when needed and doesn't reduce the estate unnecessarily.

Coordination Matters

The cliff creates a planning environment where legal, financial, and tax decisions are deeply interconnected. A trust drafted by an attorney needs to align with the family's overall financial plan. Gifting strategies need to account for federal gift-tax implications. Valuation discounts need to survive IRS review. And all of it needs to reflect the couple's actual goals for their family.

This is where working with a coordinated team (an experienced estate planning attorney, a CFP who understands the New York rules, and a CPA who can model the tax outcomes) makes the difference. Neptune manages this full end-to-end process, pairing families with attorneys who have 20+ years of experience and financial professionals who work together to build a plan that accounts for the cliff, portability, and everything in between.

Who Should Address the New York Estate Tax Cliff Now

If your taxable estate is within roughly 10% of the exemption (about $6,600,000 or more in 2026), or if you own appreciating assets that could push you past the threshold, the time to plan is now, not after values have already crossed the line.

Families who should treat this as time-sensitive include:

• NYC, Westchester, and Long Island homeowners. Downstate real estate appreciation has pushed many families into the cliff zone without their realizing it. A home that was worth $2 million five years ago may be worth $3.5 million today.
• Small-business and professional-practice owners. Retained earnings, goodwill, and equipment values can add up quickly, and these assets are often hard to value precisely, creating uncertainty about where the estate falls relative to the cliff.
• Couples relying on the federal exemption alone. The federal $15,000,000 exemption (2026) gives a false sense of security. Many families that owe nothing at the federal level face a significant New York liability.
• Multi-state families. If you split time between New York and another state, or own property in multiple jurisdictions, residency and property-situs rules determine which state's tax applies. New York taxes the entire estate of residents, and the New York real and tangible property of non-residents. New Jersey, for example, repealed its estate tax effective January 1, 2018, but still imposes an inheritance tax that depends on the beneficiary's relationship to the deceased.
• Individuals expecting a liquidity event. A business sale, IPO, inheritance, or large bonus can push an estate over the cliff in a single year.

The best time to plan is when you have options. Trusts take time to draft and fund properly. Gifting strategies need a three-year runway. Valuation work requires qualified appraisers. And aligning all of this with your partner, so that the plan reflects what you both want for your family, takes thoughtful conversation.

Planning around the New York estate tax cliff isn't about worst-case thinking. It's about making sure the wealth you've built together goes where you intend it to go, whether that's your children, your community, or the next chapter of your family's story. Couples who address this early create clarity and alignment that serves them for decades.