How to File for Separation in NY: Agreement or Court Route

To file for separation in New York, you have two options: sign a written separation agreement with your spouse and record it with the county clerk, or file an action for separation in New York Supreme Court if you cannot agree on terms. The first is a private contract that requires no lawsuit and no fault. The second is a fault-based court case with residency requirements, formal service, and a judgment issued by a judge. Most couples take the agreement route because it is faster, cheaper, and does not require proving wrongdoing.

The Separation Agreement Route

A separation agreement is a written contract between you and your spouse covering the same issues a divorce would resolve. No court has to approve it. Both spouses simply have to agree to the terms, sign the document, and file it.

What the Agreement Must Address

A workable agreement addresses the full range of financial and parenting issues so there is nothing left to fight over later:

Property division under New York’s equitable distribution framework, including who keeps the home, bank accounts, vehicles, investments, and personal property.¹
Spousal maintenance: whether it will be paid, how much, and for how long.
Child custody and visitation, including a parenting schedule and holiday and vacation plans.
Child support calculated under New York’s guidelines, with provisions for health insurance, childcare, and educational expenses.
Debt allocation for joint credit cards, the mortgage, and other liabilities.
Life insurance to secure maintenance or child support obligations if the paying spouse dies.

Each spouse typically completes a Statement of Net Worth, a detailed financial disclosure of income, expenses, assets, and liabilities.² Full disclosure is what keeps the agreement enforceable. A court can later set the agreement aside if one spouse hid assets or lied about income.

Signing and Notarization

Both spouses must sign the agreement and have their signatures acknowledged before a notary in the same form required for recording a deed.³ New York caps notary fees at $2 per person for taking an acknowledgment.⁴

Filing With the County Clerk

Once signed and notarized, either spouse files the agreement, or a memorandum of it, with the county clerk in the county where either party lives. The memorandum must include:

The names and addresses of both spouses
The date of the marriage
The date the agreement was signed
The date of the acknowledgment³

The filing fee for recording the agreement is modest, often around $5. Keep at least one additional notarized copy for your own records. The date of filing is what starts the clock on a possible conversion to divorce later.

The Judicial Separation Route

If you and your spouse cannot agree on terms, either of you can file an action for separation in New York Supreme Court. This is a lawsuit, and it comes with three requirements the private agreement does not: residency, fault-based grounds, and formal service on the other spouse.

Residency Requirements

At least one spouse must satisfy one of these residency thresholds:⁵

Either spouse has lived in New York continuously for at least two years before filing.
Either spouse has lived in the state for one continuous year, and the couple was married in New York, lived here as a married couple, or the grounds for separation arose here.
Both spouses live in New York when the action begins and the grounds arose here.

You can document residency with a lease, utility bills, a driver’s license, or voter registration. If the court finds neither spouse meets one of these thresholds, it will dismiss the case.

Grounds You Must Prove

Unlike divorce, judicial separation in New York has no no-fault option. You must plead and prove one of five grounds:⁶

Cruel and inhuman treatment that endangers the plaintiff’s physical or mental well-being enough that continuing to live together would be unsafe.
Abandonment: the other spouse left without justification and without consent for at least one year, or refused marital relations for that period (constructive abandonment).⁷
Failure to provide support despite being legally obligated to do so.
Adultery. The plaintiff must offer corroborating evidence beyond the other spouse’s admission, and the action must be brought within five years of discovering it.
Imprisonment of the defendant for three or more consecutive years after the marriage.

Filing and Serving the Papers

You purchase an index number from the county clerk where either spouse lives, file a summons and verified complaint stating your grounds and the relief you want, and then serve the other spouse. Some counties require a Request for Judicial Intervention form to get a judge assigned. Check with the clerk’s office in the county where you file for any local requirements.

Service of the summons and complaint follows the methods in New York’s Civil Practice Law and Rules:⁸

Personal delivery by someone who is not a party to the case, handed directly to your spouse within New York.
Leave and mail: if personal delivery fails, the papers can be left with a person of suitable age and discretion at your spouse’s home or workplace, with a copy mailed to their last known address or place of business.
Affix and mail (“nail and mail”): if the other methods prove impractical, the court may authorize attaching the papers to the door of your spouse’s home or workplace and mailing a copy. This method requires court permission.

Service must be completed within 120 days of filing or the court may dismiss the action.⁹ Once service is done, the server files an affidavit of service. A professional process server typically charges between $50 and $150 depending on the county, the number of attempts, and travel.

What the Court Can Order

A judgment of separation can include the same relief as a divorce decree: child custody and a parenting schedule, child support under the guidelines, spousal maintenance, exclusive use of the marital home, and division of property and debts. The court can also issue orders of protection where domestic violence is a concern, and can require the higher-earning spouse to maintain life insurance securing future support.

Filing Fees and Fee Waivers

The two paths cost very different amounts before any lawyer is involved.

Separation agreement: county clerk filing fee (often around $5) plus notarization capped at $2 per person. The main expense is attorney fees to draft or review the agreement.
Judicial separation: an index number in Supreme Court costs $210, plus process server fees, motion costs, and attorney fees. A contested case can run into the thousands.¹⁰

If you cannot afford the filing fee, you can apply for a fee waiver by filing an affidavit describing your income, assets, and financial situation. The court may waive costs, fees, and expenses when you demonstrate insufficient means to pay. If a legal aid organization or nonprofit legal services provider represents you, all filing and service fees are waived automatically without a motion.¹¹

What Changes the Moment You File

Filing does several things at once, and a few of them surprise people.

The Marital Property Cutoff

Marital property includes everything either spouse acquires during the marriage up to the date the separation agreement is signed or the separation action is filed.¹ Anything you acquire after that cutoff is your separate property. This is one of the strongest practical reasons to formalize the separation rather than simply live apart. A bonus you earn, a house you buy, or a retirement contribution you make during an informal separation can still be treated as marital property in a later divorce.

If retirement accounts are being divided, a 401(k), pension, or similar employer-sponsored plan requires a Qualified Domestic Relations Order. The QDRO must identify both spouses, specify the dollar amount or percentage the non-participant spouse receives, name each plan, and state the time period covered.¹² A plan administrator can reject a QDRO that does not meet federal requirements, delaying the division for months.

Tax Filing Status

The path you take matters here. If a court has issued a decree of separate maintenance, the IRS treats you as unmarried for the whole tax year, which lets you file as Single or, if you qualify, Head of Household.¹³ With only a private separation agreement, the IRS still considers you married. You would file jointly or separately, though you can qualify for Head of Household if you file separately, paid more than half the cost of keeping up your home, your spouse did not live in your home during the last six months of the year, and a qualifying child lived with you for more than half the year.

For any separation agreement or court order executed after 2018, the spouse paying maintenance cannot deduct those payments, and the recipient does not report them as income.¹⁴ Child support has never been deductible or taxable.

Health Insurance

If you are covered through your spouse’s employer plan, a legal separation is a qualifying event under COBRA. You are entitled to elect continuation coverage for up to 36 months.¹⁵ The deadlines are strict. You must notify the plan administrator within 60 days of the legal separation. The administrator then has 14 days to send an election notice, and you have at least 60 days from that notice to enroll. Miss the 60-day notification window and you lose the right to COBRA. Losing coverage through legal separation also qualifies you for a Special Enrollment Period on the Marketplace or another employer’s plan, with at least 30 days to enroll from the date coverage ends.

Inheritance Rights (One Boundary Worth Knowing)

Legal separation in New York does not revoke your spouse’s inheritance rights. Divorce triggers revocation of bequests and beneficiary designations; separation does not. Your separated spouse can still inherit under your will, remain the beneficiary of your life insurance and retirement accounts, and claim an elective share of your estate. If that is not what you want, update your will, beneficiary designations, powers of attorney, and health care proxy once the separation is in place. The separation agreement itself can also include waivers of inheritance rights, provided they are clearly drafted and voluntarily agreed to.

Turning the Separation Into a Divorce Later

New York allows a conversion divorce once you and your spouse have lived apart under a filed separation agreement or a judicial decree of separation for at least six months.³ Either spouse can then file for divorce based on that period of living apart.

To convert, the filing spouse has to show the agreement was properly signed and filed (or the judicial decree was granted), that both spouses actually lived apart during the required period, and that the filing spouse substantially complied with the agreement’s terms. The divorce is not automatic. You still file a summons and complaint and go through the court process, but the grounds are already established. If neither spouse ever files, the separation stays in effect indefinitely and you remain married.

When to Bring in a Lawyer

You are not required to hire an attorney to separate, but separation agreements are where most family law mistakes happen. A poorly drafted agreement can leave you responsible for your spouse’s debt, undervalue a pension, or use custody language so vague it is unenforceable. Fixing those problems later almost always costs more than getting the agreement right the first time.

Each spouse should ideally have their own attorney review the agreement. If one lawyer drafts it and only one spouse has legal advice, a court may later question whether the other spouse signed voluntarily and with full understanding. At a minimum, the spouse who did not hire the drafting attorney should have an independent lawyer review the final document before signing.

For those who cannot afford private counsel, New York’s legal aid organizations can help, and representation by a legal aid or nonprofit legal services provider automatically waives all court filing and service fees.¹¹

1
New York State Senate. New York Domestic Relations Law 236 – Equitable Distribution
2
New York State Unified Court System. Statement of Net Worth Form
3
New York State Senate. New York Domestic Relations Law 170 – Action for Divorce
4
New York State Senate. New York Executive Law 136 – Notarial Fees
5
New York State Senate. New York Domestic Relations Law DOM 230
6
New York State Senate. New York Domestic Relations Law 200 – Action for Separation
7
NY CourtHelp. Residency and Grounds for a Divorce
8
New York State Senate. New York CPLR 308 – Personal Service Upon a Natural Person
9
New York State Senate. New York CPLR 306-B – Service of Summons and Complaint
10
N.Y. State Courts. Filing Fees – N.Y. State Courts
11
New York State Senate. New York CPLR 1101 – Motion to Waive Costs, Fees, and Expenses
12
Department of Labor. Qualified Domestic Relations Orders Under ERISA – A Practical Guide
13
Internal Revenue Service. Publication 504 – Divorced or Separated Individuals
14
Internal Revenue Service. Topic No. 452 – Alimony and Separate Maintenance
15
Department of Labor. FAQs on COBRA Continuation Health Coverage for Workers