Cross-border estate planning for NY-CT property owners: ancillary probate, estate tax differences, incompatible POA forms, and coordinated strategies.

Owning Property in New York and Connecticut: Estate Planning Across State Lines

Owning Property in New York and Connecticut: Estate Planning Across State Lines

If you own real property in both New York and Connecticut, your estate will need probate in both states when you die. This is called ancillary probate, and it is just one of several complications that arise when your life and property straddle the state line between these two neighboring jurisdictions.

Residents of Fairfield County who commute to New York, own a co-op in Manhattan, or maintain a home in Westchester face a distinct set of planning challenges. The two states have different will execution rules, different estate tax regimes, incompatible power of attorney forms, and different terminology for health care directives. A plan that works in one state may fail in the other.

Connecticut vs. New York: Quick ComparisonConnecticutNew YorkESTATE TAX EXEMPTION~$13.99MESTATE TAX EXEMPTION~$6.94MTAX CAP$15M maximum taxTAX CLIFFLose exemption at 105%PROBATE COURTS54 probate districtsPROBATE COURTS62 county surrogatesSMALL ESTATE THRESHOLD$40,000SMALL ESTATE THRESHOLD$50,000WILL WITNESSES2 (sign in presence)WILL WITNESSES2 (sign within 30 days)ADULT INCAPACITYConservatorshipADULT INCAPACITYGuardianship (Art. 81)Key takeaway: CT has a higher estate tax exemption and a tax cap; NY has a dangerous cliff.Both states require ancillary probate for out-of-state real property.

Different Will Execution Requirements

Both states require a written will signed by the testator and attested by two witnesses. The differences are in the details.

Connecticut (CGS 45a-251): Each witness must sign in the testator’s presence. The statute does not specify a time limit for when the witnesses must sign relative to the testator’s signing, but the standard practice is to complete all signatures in a single ceremony.

New York (EPTL 3-2.1): The testator must declare to the witnesses that the instrument is their will, and the witnesses must sign within 30 days of each other. Witnesses need not sign in each other’s presence, but they must sign at the testator’s request.

These differences rarely cause problems for new wills, because an attorney in either state will ensure compliance with local rules. The issue arises with existing wills. A will executed in New York where the witnesses signed outside the testator’s presence might satisfy New York law but would not satisfy Connecticut’s requirements as a Connecticut will. Under CGS 45a-251, however, a will validly executed under the laws of the state where it was signed may be admitted to probate in Connecticut, so the New York will would still be accepted.

Ancillary Probate

When a person dies domiciled in Connecticut owning real property in New York, the primary estate administration occurs in Connecticut. But New York real property requires a separate proceeding in the New York Surrogate’s Court for the county where the property is located. This ancillary probate involves:

  • Filing the Connecticut-probated will (or a certified copy) with the New York court
  • Appointing an ancillary administrator or executor in New York
  • Paying New York filing fees and, potentially, New York estate tax attributable to the New York property
  • Obtaining New York court approval before the real property can be transferred to beneficiaries

The reverse applies if you are domiciled in New York with Connecticut real property. You will need ancillary probate in the Connecticut Probate Court for the district where the property is located.

Ancillary probate adds cost, delay, and complexity. It requires attorneys licensed in both states, separate court filings, and coordination between two different court systems operating on different timelines.

Different Estate Tax Thresholds

This is where cross-border planning becomes expensive if handled carelessly.

Connecticut estate tax. Connecticut’s estate tax exemption is currently tied to the federal basic exclusion amount (approximately $13.99 million for 2025). Connecticut also imposes a cap of $15 million on the estate tax itself. Connecticut is the only state with a gift tax, which applies to lifetime transfers exceeding the annual exclusion.

New York estate tax. New York’s estate tax exemption is approximately $6.94 million (indexed for inflation). New York has a “cliff”: if the taxable estate exceeds 105% of the exemption amount, the exemption disappears entirely and the full estate is taxed from the first dollar. This cliff can produce devastating results for estates just above the threshold.

For a Connecticut domiciliary with New York real property, New York may impose estate tax on the New York situs property even if the estate is below Connecticut’s higher threshold. New York allocates its estate tax based on the proportion of New York property to the total estate.

For a New York domiciliary with Connecticut real property, Connecticut imposes its estate tax on Connecticut situs property. The higher Connecticut exemption may mean no Connecticut estate tax is owed, but the New York cliff could still apply to the total estate.

Planning Opportunity

A married couple with assets between the New York exemption and the Connecticut exemption has strong reason to consider their domicile carefully. Establishing domicile in Connecticut (assuming legitimate ties) may eliminate New York estate tax entirely for assets below Connecticut’s threshold, while preserving the higher Connecticut exemption.

Different Power of Attorney Forms

Connecticut and New York each have their own statutory power of attorney forms, and they are not interchangeable for all purposes.

Connecticut uses the Durable Statutory Power of Attorney under CGS 1-352 (short form or long form). Execution requires the principal’s signature, two witnesses, and notarization.

New York uses its own Statutory Short Form Power of Attorney under NY GOL 5-1501B. Execution requires the principal’s signature, notarization, and the agent’s signature and notarization (the agent must sign to accept the appointment). New York does not require witnesses.

A Connecticut POA presented to a New York bank or title company may be rejected on the basis that it does not comply with New York’s form requirements. Similarly, a New York POA may face resistance in Connecticut, particularly for real property transactions where title companies are cautious.

Connecticut’s Uniform Recognition of Substitute Decision-Making Documents Act (CGS 1-360 et seq.) facilitates acceptance of out-of-state POAs. But “facilitates” does not mean “guarantees.” For real property transactions in particular, having a POA that complies with the local state’s requirements eliminates friction.

Recommendation: If you own real property in both states, execute a power of attorney that complies with each state’s requirements. This may mean two separate documents, or a single document drafted to satisfy both states’ execution formalities.

Different Health Care Directive Terminology

Connecticut calls the appointed person a health care representative (CGS 19a-575a). New York calls the appointed person a health care agent and the document a health care proxy (NY Public Health Law 2981).

A Connecticut health care representative form presented to a New York hospital may cause confusion or delay. New York hospitals are accustomed to their own proxy form and may not immediately recognize Connecticut’s document. The legal effect may be the same, but practical acceptance matters when decisions need to be made quickly.

As with powers of attorney, the safest approach for cross-border residents is to execute health care directives under both states’ laws.

Which State’s Law Controls

The choice-of-law rules for estates are well established:

Real property is governed by the law of the state where the property is located (the “situs” state). Connecticut real property is governed by Connecticut law. New York real property is governed by New York law. This applies to both testamentary transfers and intestate succession.

Personal property (bank accounts, investments, tangible property) is governed by the law of the decedent’s domicile at death. If you are domiciled in Connecticut, Connecticut law controls the disposition of your personal property, even if the bank account is held at a New York institution.

Trusts are governed by the law designated in the trust instrument, or, if none is designated, by the law of the jurisdiction with the most significant relationship to the trust.

Strategies for Cross-Border Planning

Revocable Trusts

Transferring real property into a revocable trust during your lifetime avoids probate in both states. Property held in trust does not pass under the will and therefore does not require a probate proceeding. For a Connecticut resident with a New York apartment, retitling that apartment into the trust eliminates the need for New York ancillary probate.

The trust must be properly funded. A trust that exists on paper but does not hold the property accomplishes nothing; the property will still pass through probate.

Transfer-on-Death Deeds

New York enacted a transfer-on-death deed statute (NY EPTL 7-7.1, effective 2024) that allows real property to pass outside probate to a named beneficiary. This is a simpler and less expensive alternative to a trust for avoiding ancillary probate on a single New York property.

Connecticut does not currently have a transfer-on-death deed statute. Connecticut real property must pass through probate or be held in trust to avoid the probate process.

Coordinated Estate Plans

A coordinated plan addresses both states’ requirements in a unified strategy:

  • A single will drafted to comply with both states’ execution requirements (or separate wills for each state, though this creates coordination challenges)
  • Powers of attorney for each state
  • Health care directives for each state
  • A revocable trust to hold real property in the non-domicile state
  • Tax planning that accounts for both states’ estate tax regimes, particularly the New York cliff
  • Beneficiary designation reviews for accounts held in both states

Joint Ownership

Holding property in joint tenancy with right of survivorship avoids probate at the first death. This works for both Connecticut and New York real property. But joint ownership has drawbacks: it creates a present interest in the co-owner, exposes the property to the co-owner’s creditors, may trigger gift tax issues, and eliminates the step-up in basis on the co-owner’s half.

For married couples, tenancy by the entirety (available in both states for real property) provides creditor protection that joint tenancy does not.

Why You Need Attorneys in Both States

An attorney licensed in Connecticut cannot practice law in New York, and vice versa. Cross-border estate planning requires counsel in each jurisdiction to:

  • Ensure documents comply with local execution requirements
  • Advise on state-specific tax consequences
  • Handle real property transfers and title issues
  • Represent the estate in any necessary probate proceedings

The ideal arrangement is two attorneys who communicate with each other and coordinate the overall plan. Many Fairfield County attorneys have relationships with Westchester or Manhattan colleagues for exactly this purpose.

Connecticut vs. New York Comparison Tool

For a side-by-side comparison of key estate planning differences between Connecticut and New York, see our CT vs. NY estate planning comparison tool.

For details on ancillary probate when a Connecticut resident owns New York real property, see out-of-state property and Connecticut probate. For the full Connecticut estate tax rate schedule, exemption amounts, and the $15 million cap, see the Connecticut estate tax guide.