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Estate & Probate8 min read

Understanding Affidavits of Heirship and Why They Matter in Estate Cases

By Juan Lozano|Published March 28, 2026

An affidavit of heirship is a legal document that establishes who the lawful heirs of a deceased person are when there's no will. In New York estate proceedings, affidavits of heirship play a crucial role in simplified probate procedures and in transferring assets when the deceased died intestate. Understanding what an affidavit of heirship is, when it's needed, and how to obtain one is important for families dealing with an intestate estate.

Affidavits of heirship are used in different ways depending on the estate's size and complexity. For small estates, they can be an alternative to formal probate. For larger estates, they support the appointment of an administrator. This guide explains affidavits of heirship and how they're used in New York estate administration.

What Is an Affidavit of Heirship and Why It's Necessary

An affidavit of heirship is a sworn legal statement in which someone testifies about who the lawful heirs of a deceased person are. The affiant—the person making the statement—provides information about the deceased, their family members, and the heirs' relationships to the deceased. The affidavit establishes the line of succession according to New York's intestacy laws.

Why is this necessary? When someone dies without a will, the law doesn't automatically identify heirs—formal documentation of heirship must be established. An affidavit of heirship accomplishes this. It serves as proof of who qualifies as an heir under New York's intestacy statutes (EPTL Article 4), which is essential for transferring assets and administering the estate.

Unlike a will, which explicitly names beneficiaries, an intestate estate relies on legal definitions of "heirs." An affidavit of heirship clarifies the familial relationships and confirms that those identified are indeed the legal heirs. This is particularly important when an estate uses the simplified affidavit procedure rather than formal Surrogate's Court probate.

When Affidavits of Heirship Are Used: Small Estates and SCPA Procedures

Affidavits of heirship are most commonly used in small estate administrations. Under SCPA 1301-1351, New York provides a simplified procedure for estates worth $30,000 or less. Rather than going through formal Surrogate's Court probate with petitions, court hearings, and formal filings, designated heirs can use an affidavit procedure to collect the estate.

To use the affidavit procedure, heirs must obtain an affidavit of heirship, file it with relevant institutions (banks, insurance companies, etc.), and follow a simplified process to claim the estate. This procedure eliminates much of the cost and delay associated with formal probate. However, real property typically cannot pass through the affidavit procedure—if the estate includes real property, formal probate may be required even if the total estate value is under $30,000.

Additionally, if there are creditor claims or disputes among heirs, the affidavit procedure may not be available. This simplified procedure works only when the estate is straightforward, there are no serious disputes, and all heirs agree about the heirship status and distribution.

Who Can Provide an Affidavit of Heirship

An affidavit of heirship is typically provided by someone familiar with the deceased and their family relationships. This might be a family member, friend, or other knowledgeable person. The affiant must have personal knowledge of the facts stated in the affidavit and must swear under oath that the information is true.

The affiant doesn't need to be an heir themselves, though they often are. For example, a surviving spouse might provide an affidavit of heirship identifying themselves and their children as heirs. An estate professional can also help prepare and assist with affidavits of heirship.

The quality of the affidavit depends on the affiant's knowledge. An affiant with direct knowledge of family relationships, births, deaths, and marriages provides more credible information than someone with only secondhand knowledge. If possible, affidavits should be supported by documentary evidence like birth certificates, marriage certificates, and death certificates.

Contents of an Affidavit of Heirship

A comprehensive affidavit of heirship includes: the deceased's full legal name, date and place of death, and information about their family. The affidavit identifies all of the deceased's children (if any) and their mothers/fathers, the deceased's parents (if alive), the deceased's spouse or former spouses, and any other relevant family information.

The affidavit states that the deceased died without a valid will and identifies the heirs under New York's intestacy laws. Under EPTL 4-1.1, if the deceased left a spouse and children, the affidavit identifies each heir and their share. If there's a surviving spouse but no children, the spouse is the sole heir. If there are children but no spouse, the children are identified as co-heirs.

The affidavit is signed before a notary public and the affiant swears under oath that the information is accurate to their best knowledge and belief. Supporting documents—birth certificates, marriage certificates, death certificates—are typically attached as exhibits to strengthen the affidavit's credibility.

Using the Affidavit of Heirship to Access Estate Assets

Once an affidavit of heirship is prepared and notarized, it's provided to financial institutions, insurance companies, and other entities holding the deceased's assets. Banks, credit unions, investment firms, and insurance companies typically have procedures for releasing funds based on an affidavit of heirship for small estates.

Some institutions may require additional documentation: the death certificate, proof of the affiant's identity, and other verification. Different institutions have different procedures, so working with each entity is necessary to confirm what they require. Some may require a certified copy of the affidavit, while others accept a photocopy.

It's important to note that an affidavit of heirship has no effect on real property. Real estate owned solely in the deceased's name must pass through formal probate or be transferred through other mechanisms. This is why the affidavit procedure works only for estates without significant real property.

Affidavits of Heirship vs. Formal Probate: Advantages and Limitations

The primary advantage of using an affidavit of heirship is cost and speed. Formal probate in New York can take 6-12 months or longer and may cost thousands in legal and court fees. An affidavit of heirship procedure can be completed in weeks at minimal cost, making it ideal for small estates with cooperative heirs.

However, affidavits of heirship have significant limitations. They don't work for estates larger than $30,000 (with some exceptions for estates containing primarily personal property). They don't address real property. They don't provide the court supervision and creditor protection that formal probate offers. If there are disagreements among heirs or if creditors need to be satisfied, formal probate is necessary.

Additionally, if the deceased had debts or outstanding liabilities, creditors may have claims against the estate. The affidavit procedure doesn't formally notify creditors or give them the opportunity to file claims as formal probate does. This can create liability issues for heirs if creditor claims emerge later.

How Keystone Pinnacle Can Help

Whether you're navigating an estate property sale, exploring investment opportunities, or need guidance through a complex real estate transaction, Keystone Pinnacle Property Advisors is here to help. Our team specializes in guiding families through the real estate aspects of estate settlement throughout Brooklyn, Queens, Nassau County, and the greater New York area.

Contact us today for a free consultation, or call (516) 703-6942 to speak with an advisor.

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