When a Manhattan couple sits across my desk, they almost always bring the same assumption to our first meeting. They have shared a checking account for thirty years, co-signed their mortgage, and filed joint tax returns. They assume their estate plan should be unified in a single document—a shared trust. They want to pool their life savings into one bucket, name each other as co-trustees, and leave it at that. It sounds logical, even romantic. But New York is not a community property state. What works seamlessly in California or Texas can create a quiet catastrophe if not handled with absolute precision. Estate planning is not about validating a marriage; it is about preserving capital and protecting the people you leave behind.
The Mechanics of a Joint Trust in a Separate Property State
In estate planning, what clients colloquially call a “shared trust” is legally known as a joint revocable trust. Both spouses act as grantors, moving their respective assets—from brokerage accounts to the deed on a Long Island summer home—into a single legal vehicle. While both are alive and possess capacity, they serve as co-trustees. They can buy, sell, and manage the trust property together without needing the other’s written permission for every individual transaction.
New York views marital property through the lens of separate ownership. The law does not automatically assume that an asset belongs equally to both spouses simply because they are married. Commingling assets in a joint trust can inadvertently blur the lines of separate ownership. If the marriage falters, or if one spouse requires Medicaid for long-term care, determining who actually owns the underlying principal becomes a highly contested issue. When you blend assets without a clear tracing mechanism, you invite the government and creditors to treat the entire pool of wealth as available to satisfy a single spouse’s obligations.
The Fiduciary Trap of Mutual Revocation
The most significant risk of a shared trust emerges when circumstances change. Under New York’s Estates, Powers and Trusts Law (EPTL) § 7-1.9, a creator generally retains the right to revoke or amend a revocable trust. But who holds that power when there are two grantors, and one loses cognitive capacity due to dementia or a sudden stroke?
If the trust agreement does not explicitly define how revocation and amendment work when one spouse is incapacitated, the healthy spouse may find themselves legally paralyzed. They cannot unilaterally amend the trust to adapt to new tax laws, remove a problematic beneficiary, or change the succession of trustees without court intervention. They are trapped by the very document they thought would protect them.
Stewardship.
That is what we are aiming for. A poorly drafted joint trust destroys the agility required to be a good steward of family wealth. Instead of keeping the family out of the legal system, it often forces the healthy spouse to petition the court for an Article 81 guardianship simply to manage their own money.
Creditor Exposure and Blended Families
Beyond capacity issues, we must evaluate liability. When you place assets into a shared trust, you are effectively merging your risk profiles. If one spouse is a surgeon or a commercial real estate developer facing a high risk of litigation, placing the other spouse’s inherited wealth into a joint trust is a dangerous game. Creditors seeking to satisfy a judgment may attempt to pierce the trust, arguing that the assets are hopelessly commingled and therefore available to satisfy either spouse’s debts.
This risk multiplies in blended families. If either spouse has children from a prior relationship, a shared trust is rarely the correct tool. The surviving spouse typically assumes full control over the joint trust after the first death. Even if the trust includes language directing a portion of the funds to the deceased spouse’s children, the surviving spouse often has the power to deplete the principal. This dynamic frequently leads to bitter litigation under SCPA Article 22, where children from the first marriage demand a formal accounting and accuse the surviving spouse of breaching their fiduciary duty. By utilizing separate revocable trusts, we can construct absolute firewalls that guarantee the current spouse is provided for, while ensuring the ultimate remainder passes intact to the intended children.
Estate Taxes and the New York Cliff
We must also weigh the tax implications of shared trusts. New York imposes its own estate tax, and it features a notoriously punitive cliff. If an estate exceeds the state exemption amount by even five percent, the entire estate is subject to the tax—not just the overage. For high-net-worth families, falling off this cliff means writing a massive, unnecessary check to the state.
With separate trusts, we can deliberately structure credit shelter provisions to maximize both spouses’ exemptions, effectively doubling the amount of wealth shielded from state taxation. While a shared trust can technically be drafted to include these tax-saving mechanisms, the accounting required to track which spouse contributed which asset to the joint pool is immensely difficult. Fiduciary duty demands meticulous record-keeping. When assets are mixed together for decades in a shared trust, surviving spouses—or their successor trustees—often spend months paying forensic accountants to untangle the financial history.
When a Shared Trust Actually Makes Sense
I do not universally oppose joint trusts. For certain families, they are highly effective and entirely appropriate. A shared trust offers administrative simplicity if a couple meets the following criteria:
- They have been married for decades and own only joint assets.
- They have no children from prior relationships.
- Their combined net worth is well below the state estate tax threshold.
- Neither spouse works in a high-liability profession.
In these specific scenarios, a shared trust requires funding only one vehicle. It also requires filing under only one tax identification number after the first death, streamlining the custodial work for the surviving spouse.
The decision hinges on deliberate planning. We do not choose a shared trust simply because it feels egalitarian. We choose it when the specific contours of the family’s wealth dictate that it is the most prudent tool for the job. Legacy is built on intentional choices, not default assumptions.
Before consolidating your life’s work into a single legal instrument, you must understand exactly how the state views your property and your liability. I invite you to schedule a 30-minute review of your current asset titling with our office. We will examine your accounts and deeds to determine whether a shared trust aligns with your generational goals, or if separate trusts will better protect your family.
