There is no authoritative national count of ancillary probate filings. The available state reports use different categories, reporting periods, and case-count rules. One source reviewed here identifies ancillary cases directly: Texas reported 1,374 cases added in its statewide probate activity report for September 1, 2023 through August 31, 2024. New York reports broader Surrogate's Court categories without a separate ancillary line in its 2022 table. Florida's statute explains when ancillary administration is available, but the reviewed state materials do not provide a comparable statewide filing count.
Ancillary probate statistics
The safest way to read these figures is to ask what the court counted. A filing, a case added, a proceeding, and a disposition are not interchangeable. Texas labels the ancillary figure "Other Cases Added" and reports it by case type. New York's annual report counts proceedings by broad type. Florida's code addresses jurisdiction and procedure rather than reporting volume.
State-by-state findings
| Jurisdiction | Identified statistic or result | Period and definition | What the source does not establish | Primary source and access date |
|---|---|---|---|---|
| Texas | 1,374 ancillary cases added | September 1, 2023 to August 31, 2024; statewide probate activity report, with ancillary cases listed under "Other Cases Added" | Not a national rate, not a count of unique estates, and not necessarily a count of newly opened domiciliary cases | Texas Judicial Branch, *2024 Annual Statistical Report Detail*, updated April 1, 2026, statewide probate, guardianship and mental health case activity, accessed August 2, 2026 |
| New York | 41,063 probate filings and 22,486 administration filings; ancillary filings not separately identified | 2022 Surrogate's Court proceedings, statewide | The table cannot be used to extract an ancillary-probate count or rate | New York Courts, *2022 Annual Report*, report data entry January 30, 2023, Surrogate's Court filings and dispositions, accessed August 2, 2026 |
| Florida | No comparable statewide ancillary filing count identified in the reviewed official materials | 2025 Florida Statutes, sections 734.102 and 734.1025 | A statutory procedure is not a filing statistic, and a missing published count is not zero filings | Florida Legislature, *2025 Florida Statutes, Chapter 734*, updated 2026, foreign personal representatives and ancillary administration, accessed August 2, 2026 |
The Texas figure is the only ancillary total in this comparison that the reviewed source identifies as its own line. It should remain labeled as Texas cases added during that reporting period. Dividing it by a population estimate would create a rate that the court did not publish and would not solve the definition problem.
What the statutes and filing guidance require
Florida Statutes section 734.102 allows ancillary administration when a nonresident dies leaving assets, credits, or liens in Florida. The statute describes who may receive ancillary letters, requires the proceeding to follow the Florida Probate Rules, and addresses notice to creditors. Section 734.1025 provides a separate procedure for a nonresident's testate estate when property subject to administration in Florida does not exceed $50,000. Those rules explain why two matters involving out-of-state owners may use different procedures. They do not supply a statewide volume estimate.
New York's official Surrogate's Court checklist says ancillary probate is used when a non-domiciliary leaves real or personal property that needs administration under New York law after probate in the foreign jurisdiction. The checklist calls for a petition, authenticated foreign proceeding records, and a citation or waiver. The related New York form asks the petitioner to describe the New York real and personal property and its value. A case search therefore needs the county, proceeding type, and record year. A broad probate total cannot stand in for an ancillary total.
Texas provides a useful reporting lesson. Its 2024 report lists 45,677 new cases, applications, or contests, then separately lists 1,374 ancillary cases under "Other Cases Added." The report's own structure supports reporting the ancillary line as a case count. It does not support treating the figure as the number of estates that owned property in multiple states.
Census and property records are research inputs, not ancillary counts
The Census Bureau's 2024 state-to-state migration table can help identify a prior-state connection. Migration is still a population measure. It does not show whether a decedent owned real property, whether title was held individually, or whether an ancillary proceeding followed. The Census Bureau also cautions that ACS estimates describe population and housing, while official population totals between censuses come from the Population Estimates Program. Do not turn a migration or population denominator into an ancillary-probate rate.
Property records can help confirm a jurisdictional lead. New York City's Automated City Register Information System, or ACRIS, provides deeds and other recorded documents for Manhattan, Queens, the Bronx, and Brooklyn from 1966 onward. The city's own guidance says reviewing those records is not necessarily the same as a title search. Texas directs researchers to the relevant county appraisal district or tax assessor-collector through its county directory. These systems can support a parcel search, but a county or city record system cannot prove that an estate owns no property elsewhere.
For a repeatable multi-state workflow, start with the decedent's known addresses, tax documents, deeds, trust schedules, and entity records. Log the jurisdiction, county, name variants, parcel identifier, search date, source URL, record result, and unresolved limitation. Then compare the property lead with the domiciliary court file and the situs state's probate rules. For the broader property context, see multi-state estate property statistics and estate planning for multi-state property owners. For help organizing public-record research, see investigative research services.
Why the states are not directly comparable
The Texas report counts ancillary cases added during a defined reporting period. New York's annual report uses statewide proceeding categories and does not identify ancillary probate separately. Florida's statute defines a pathway for a nonresident's Florida assets, including a small-estate procedure, but the reviewed official sources do not publish a statewide count. The categories also differ in whether they describe filings, cases added, proceedings, or dispositions.
For those reasons, this article does not calculate a national ancillary-probate rate. No valid national denominator and numerator were identified. It also does not add Texas, New York, and Florida totals, because the source definitions do not support that arithmetic. A state-specific research request should use the state's own case category, reporting period, and court records.
Methodology and limitations
This review used the Texas Judicial Branch 2024 annual statistical report, the New York Unified Court System 2022 annual report, Florida's 2025 statutory text, New York Courts' ancillary probate forms and checklist, the U.S. Census Bureau's 2024 state-to-state migration materials, New York City's ACRIS guidance, and the Texas Comptroller's county property-tax directory. Sources were accessed August 2, 2026. The review counted an ancillary filing only where an official source identified an ancillary category and a number. It reports Texas's 1,374 cases added and does not estimate the missing New York or Florida counts.
Frequently asked questions
Is there a national ancillary probate statistic?
No. The reviewed official sources do not provide a comparable national numerator and denominator. State reports use different categories and periods.
What is the Texas ancillary probate figure?
Texas reported 1,374 ancillary cases added for September 1, 2023 through August 31, 2024. The report places the figure under "Other Cases Added" in statewide probate activity.
Does New York's 2022 probate total include ancillary proceedings?
The New York annual report lists probate and administration proceedings but does not give ancillary probate its own line. The 41,063 probate filings therefore should not be described as ancillary filings.
Does Florida publish a statewide ancillary filing count here?
No. The Florida statute reviewed here describes ancillary administration and a small-estate procedure. It does not provide a statewide filing total.
Can a property-record search prove that an estate has no other property?
No. Search coverage varies by county, indexing, ownership form, record age, and the names used. A recorded-property search is one research step, not a national asset certification.
Sources
- Texas Judicial Branch, *2024 Annual Statistical Report Detail*, updated April 1, 2026, annual statistical reports, accessed August 2, 2026.
- New York Courts, *2022 Annual Report*, report data entry January 30, 2023, Unified Court System annual report, accessed August 2, 2026.
- Florida Legislature, *2025 Florida Statutes, Chapter 734*, updated 2026, Foreign Personal Representatives; Ancillary Administration, accessed August 2, 2026.
- New York Courts, *Surrogate's Court Ancillary Probate Checklist* and *Petition for Ancillary Probate*, publication dates not stated, official forms and checklist, accessed August 2, 2026.
- U.S. Census Bureau, *2024 State-to-State Migration Tables*, published January 21, 2026, migration table directory, accessed August 2, 2026.
- New York City Department of Finance, *ACRIS*, publication date not stated, Automated City Register Information System, accessed August 2, 2026.
- Texas Comptroller of Public Accounts, *Local Property Appraisal and Tax Information*, publication date not stated, county directory, accessed August 2, 2026.
Professional disclaimer
This article is general research information, not legal, tax, title, appraisal, fiduciary, investment, or financial advice. Court categories, filing rules, property records, and public data can be incomplete or updated. A qualified attorney, title professional, tax adviser, or other appropriate professional should review the facts of a specific estate before anyone relies on them for a filing, transfer, valuation, distribution, or other legal decision.