Nassau County Clerk (NY): Records, Forms, Fees & Office Details

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Nassau County, New York County Clerk Guide

Nassau County Clerk (NY): Records, Forms, Fees & Office Details

The Nassau County Clerk in Mineola is the official county office many Long Island residents, property owners, attorneys, title companies, notaries, veterans, businesses, and court users need for recorded land records, deeds, mortgages, business certificates, notary-related filings, court file support, passports, veteran discharge filings, and certified copies.

This guide explains which Nassau County Clerk service to use, how to search online records, where to request copies, which forms and fees to check, how to open the office in Google Map, and when your task belongs to a court, town clerk, assessor, or another Nassau County department instead.

Official County Clerk Website Search Nassau County Records Open Office in Google Map

Independent guide last reviewed September 2026. Always confirm current fees, office hours, recording rules, passport rules, and public-access limits on the official Nassau County Clerk website before filing, paying, mailing, or visiting.

Quick Facts About the Nassau County Clerk

Official office Nassau County Clerk’s Office.
Main address 240 Old Country Road, Mineola, NY 11501.
Main phone 516-571-2664.
General office hours Monday through Friday, 9:00 a.m. to 4:30 p.m., excluding holidays.
Online record system Nassau County Land Records Official Records Search.
Common property search details Owner name, document type, recording date, book/page, instrument number, or section/block/lot.
Core record areas Real estate records, legal filings, business certificates, notary records, passports, veterans services, and selected archived records.
Important local distinction Marriage licenses, birth certificates, and death certificates are usually handled by local town, city, or village clerks in New York, not always by the County Clerk.
Best first step: if you need a deed, mortgage, satisfaction, lien, map, recorded document, DBA/business certificate, notary authentication, passport acceptance, or County Clerk form, start with the Nassau County Clerk. If you need a pending hearing date, Family Court matter, District Court matter, village ticket, property assessment, or local birth/death/marriage certificate, another office may be the correct destination.

How to Search Nassau County Clerk Records Online

The official Nassau County online records system is useful for land records and several Clerk-maintained indexes. Users can search deeds and mortgages, business names, judgments, maps, UCC records, property cards, miscellaneous records, and certain civil/criminal indexes depending on availability and access rules.

The online system states that document images are generally available from February 22, 1994 to the present, with older recorded documents added periodically. Searching is offered as a free service, but downloading images or printing search results may create a charge, so check the fee notice before ordering or printing.

Official records searchNassau County Land Records Official Records Search

Use this official records portal for Nassau County recorded documents, name searches, document searches, recorded-date searches, section/block/lot searches, maps, UCC records, judgments, and business-name searches where available.

After opening this link:

  1. Allow JavaScript and pop-ups if your browser blocks the record viewer or document image window.
  2. Read the notice about refunds, image-download charges, and printing charges before buying or printing anything.
  3. Open the Search Criteria menu if you want to search by document type, recorded date, reference, section/block/lot, or another method instead of only by name.
  4. For property documents, try the owner name first, then narrow by recorded date, section/block/lot, document type, or instrument details.
  5. Check the certified date range shown by the system before treating the result as complete.
  6. If you need a certified copy, contact or visit the Nassau County Clerk’s Office because the online system notes certified copies must be obtained from the Clerk.
Name search Helpful for deeds, mortgages, satisfactions, business names, judgments, UCC records, and older recorded documents.
Section/block/lot search Useful for Nassau real estate records because tax map identifiers often connect land records to a specific parcel.
Document search Best when you already have an instrument number, book/page, document type, or recorded-date clue.
Certified copies Do not rely on a downloaded image if an agency, bank, court, or title company asked for a certified copy.
Do not automate searches: the online records system states that automated data searches and programs are not supported and are prohibited. Use the official search tools manually and follow the site terms.

Nassau County Clerk Office Address, Phone, Hours, and Google Map

The Nassau County Clerk’s Office is located at 240 Old Country Road in Mineola, near other county and court offices. For most in-person tasks, confirm the room, fee, required documents, and payment method before traveling.

Nassau County Clerk’s Office

Address: 240 Old Country Road, Mineola, NY 11501

Phone: 516-571-2664

General hours: Monday through Friday, 9:00 a.m. to 4:30 p.m., excluding holidays.

Plan before visiting: bring your document details, property section/block/lot when relevant, valid photo ID for identity-based services, and the correct payment method for the service you need.

Open Nassau County Clerk in Google Map

Official office detailsNassau County Clerk Office Overview

After opening this link:

  1. Confirm the office address, phone number, and posted office hours.
  2. Review the three major service areas: real estate, legal, and other public services.
  3. Use the left-side or page navigation for service guides, forms, fees, land records, notary, passports, and contact options.
  4. If your task requires a court-specific clerk, check whether it belongs to the County Clerk’s legal division or a separate court office.

DirectionsDirections to the Nassau County Clerk’s Office

After opening this link:

  1. Review the official driving directions before leaving for Mineola.
  2. Check the nearby Nassau County Courthouse reference point if you are approaching from Old Country Road.
  3. Open the Google Map link above for live traffic, parking planning, and route options.
  4. Arrive early if you need copies, a search, passport acceptance, or a time-sensitive filing.

What the Nassau County Clerk Does

The Nassau County Clerk’s Office describes its work in three broad areas: real estate records, legal/court-related records, and public services. This matters because a “county clerk” search in New York can mean several different tasks, from recording a deed to requesting a Supreme Court file or filing a business certificate.

Real estate recording Recording deeds, mortgages, mortgage satisfactions, commercial chattel mortgages, building loans, maps, and related land records.
Taxes connected to recordings Computing, collecting, and disbursing transfer and mortgage taxes connected to eligible real estate recordings.
Certified recorded copies Providing certified copies of recorded documents, including deeds, mortgages, and mortgage satisfactions.
Legal division services Maintaining Supreme Court and County Court documents and supporting filings such as index numbers, RJIs, notes of issue, and related court-file requests.
Business and notary records Business certificates, certificates of character, notary registration/renewal support, notary authentication, and related filings.
Public services Passport acceptance, veterans discharge filings and certified copies, naturalization record requests, and selected county clerk forms.

Official service menuNassau County Clerk Services

After opening this link:

  1. Choose the service area that matches your task: business formations, filing for a business, land recording, naturalization records, notary public, passports, veteran services, or vital records information.
  2. Open the matching service guide before downloading forms or visiting the office.
  3. Check the side menu for records search, property fraud alert, online forms, fees, court file requisition, and FOIL options.
  4. Use the contact page only after confirming which division handles your request.

Deeds, Mortgages, Land Records, Certified Copies, and Property Fraud Alert

The Nassau County Clerk maintains the official county record of many real estate transactions. This includes deeds, mortgages, satisfactions of mortgage, maps, building loans, and other land-related instruments that title companies, homeowners, lenders, attorneys, and researchers often need.

If you need a certified copy of a deed or mortgage, the Clerk’s guidance points users to the office or a mail request. Your property section, block, and lot can make the search much faster, and those numbers are often found on a Nassau County tax bill.

For a deed copy Have the property section/block/lot, owner name, approximate recording year, and property address ready.
For a mortgage document Search by borrower name, lender name, recording date, book/page, or document number if available.
For a satisfaction Search the original borrower, lender, mortgage reference, and satisfaction recording date if known.
For title work Use official recording indexes and confirm certified copies directly with the Clerk before closing or legal use.

Official land recordsNassau County Land Records

After opening this link:

  1. Use this page to reach Nassau County Clerk land-record resources and record-search options.
  2. Check whether you need a document image, a certified copy, a recording guide, or an online record lookup.
  3. For parcel-related searching, gather the property section/block/lot before searching.
  4. If the record is older or not online, contact or visit the Clerk instead of assuming it does not exist.

Deeds and mortgagesNassau County Mortgages and Deeds

After opening this link:

  1. Read the instructions for obtaining certified copies of deeds and mortgages.
  2. Prepare the section/block/lot from your tax bill before visiting or mailing a request.
  3. Use the posted mail-request form if you cannot visit the Clerk’s Office in Mineola.
  4. Confirm the certified-copy fee and include the correct payment and self-addressed envelope when required.

Fraud alertNassau County Property Fraud Alert

After opening this link:

  1. Use the sign-up option if you want email alerts when a document is filed using your name or property section/block/lot.
  2. Enter your information carefully because alert accuracy depends on matching the recorded-document index.
  3. Remember that alerts do not prevent recording; they notify you so you can review suspicious activity quickly.

Nassau County Clerk Forms, Business Certificates, and DBA Filings

The Nassau County Clerk provides online forms for business certificates, court-file requisitions, naturalization record requests, satisfaction of judgment filings, subpoena templates, and other Clerk-related tasks. For business filings, New York users often search for a DBA or assumed-name certificate.

The Clerk’s business filing guidance says that once the correct business certificate is completed, notarized, filed, and accepted, the business certificate can be used for doing business within the county. Business certificates filed in Nassau County are available for public review at the Clerk’s Office.

Official formsNassau County Clerk Online Forms

After opening this link:

  1. Find the form category that matches your task, such as business certificate, court file requisition, naturalization records, satisfaction of judgment, or subpoena template.
  2. Download the current official PDF or form from the Clerk’s page, not from an unrelated third-party website.
  3. Read whether the form must be notarized before filing.
  4. Check the fee page before mailing or bringing the form to the Clerk.
  5. Make a copy of your completed form and proof of payment for your records.

Business filingFiling for a Business in Nassau County

After opening this link:

  1. Choose the form that matches your business structure, such as individual/sole proprietorship or partnership.
  2. Complete the certificate and have the required signature acknowledged by a notary if required.
  3. Bring or mail the completed form with the correct fee to the Nassau County Clerk’s Office.
  4. If you are checking whether a business certificate is already on file, visit the Clerk’s Office during business hours for public review.
Business-name tip: a county DBA/business certificate is not the same as forming an LLC or corporation with New York State. If you are creating an LLC, corporation, or other state-filed entity, check the New York Department of State requirements as well.

Nassau County Clerk Fees: Common Amounts to Check Before Filing

Nassau County Clerk fees depend on the service, document type, page count, certification need, tax calculation, recording category, and payment method. The amounts below are practical starting points from Nassau County Clerk fee pages and record-search notices; always verify the current total on the official fee page before paying.

$35.00 Business Certificate filing.
$35.00 Amended Business Certificate.
$60.00 Notary renewal and registration.
$3.00 Notary authentication.
$5.00 Authenticate death, birth, or marriage certificate.
No fee Veterans Discharge Filing / DD214 filing.
$2.50 Certified copy of Veterans Discharge / DD214.
$5.00 Naturalization record fee listed by the Clerk.
$0.65 Online document image download charge per page in the records system.
$1.50 Search-result printing charge per page in the records system.
$10.00 Common certified deed-copy request amount listed in Clerk guidance.
Varies Recording fees, block fees, page fees, taxes, and mortgage/transfer tax calculations.

Official feesNassau County Clerk Fees

After opening this link:

  1. Choose the correct fee category: legal fees, notary/business fees, or real estate fees.
  2. Do not use a business-certificate fee for a deed recording or court filing; fee categories are different.
  3. For land recordings, check page count, block fees, endorsement-page fees, transfer tax, mortgage tax, and any required state forms.
  4. Call the Clerk if your document has multiple parcels, multiple names, unusual references, or tax questions.
  5. Confirm the payment method before mailing because some fees and taxes may require specific checks or payees.

Real estate feesNassau County Real Estate Recording Fees

After opening this link:

  1. Identify the document type, such as deed, mortgage, satisfaction, power of attorney, map, or other real estate filing.
  2. Count pages and check whether a block fee applies.
  3. Review whether a TP-584, RP-5217, transfer tax, mortgage tax, or other supporting form is required.
  4. Use the official schedule to estimate cost, then verify with the Clerk before sending payment.

Court Files, Supreme Court Filings, County Court Records, and E-Filing

The Nassau County Clerk also serves as Clerk of the Supreme and County Courts for certain legal records and filings. This can include indexing and maintaining Supreme Court documents and case files, issuing certified copies upon request, processing index numbers, receiving requests for judicial intervention, notes of issue, jury demands, and other legal-division filings.

For active court calendars, judge-specific procedures, hearing questions, Family Court, District Court, Surrogate’s Court, or village court matters, you may need the New York State Unified Court System or the specific court office rather than the County Clerk’s land-record or business-record division.

Court file requestNassau County Court File Requisition Form

After opening this link:

  1. Use this form when you need to request a Nassau County court file through the County Clerk process.
  2. Prepare the index number, party names, case type, and your contact information before starting.
  3. Enter the details carefully so staff can locate the correct file.
  4. Wait for instructions or confirmation before assuming the file is immediately available.

New York courtsNassau County Courts – New York State Unified Court System

After opening this link:

  1. Choose the court that matches your matter, such as Supreme Court, County Court, District Court, Family Court, Surrogate’s Court, or another local court.
  2. Use the court website for court-specific contacts, calendars, judge information, and courthouse procedures.
  3. Use the County Clerk for Clerk-maintained records and filings, but use the court office for many courtroom or calendar questions.

E-filingNew York State Courts Electronic Filing – NYSCEF

After opening this link:

  1. Confirm that your case type and court are eligible for NYSCEF electronic filing.
  2. Create or log in to your NYSCEF account.
  3. Select the correct Nassau County court and case type before uploading documents.
  4. Review filing fees, service requirements, and confirmation notices after submission.
  5. Contact the court or Clerk if a filing is rejected or if you are unsure which filing category applies.

Passports, Notary Public Services, Veterans Records, and Naturalization Records

The Nassau County Clerk is designated as an official Passport Acceptance Center by the U.S. Department of State. The office also provides notary public services, notary authentication, notary registration and renewal support, veteran discharge filing and certified copies, and naturalization record request options.

Passports Use the Clerk for in-person passport application acceptance; passport renewal rules may differ and can require mailing to the Department of State.
Notary Check notary registration, renewal, authentication, and Certificate of Official Character requirements before visiting.
Veterans records DD214 filing is listed as no fee, and certified copies of veterans discharge records have a listed fee.
Naturalizations Use the Clerk’s naturalization record request form when the record is held by the Nassau County Clerk’s Office.

Official passportsNassau County Clerk Passport Services

After opening this link:

  1. Review whether you are applying for a first passport, child passport, replacement passport, or renewal.
  2. Confirm whether you must appear in person at the County Clerk’s Office.
  3. Prepare proof of citizenship, photo ID, passport photo, application form, and required fees.
  4. Check whether payments must be separated between the County Clerk fee and the U.S. Department of State fee.
  5. Use the official U.S. Department of State passport fee page for the latest federal passport fee amount.

Federal fee checkerU.S. Department of State Passport Fees

After opening this link:

  1. Use the official passport fee calculator or fee chart.
  2. Select passport book, passport card, or both based on your travel needs.
  3. Check expedited service and delivery options if you need the passport quickly.
  4. Bring the correct payment method because acceptance facilities and the Department of State may require separate payments.

Official notaryNassau County Clerk Notary Public Services

After opening this link:

  1. Review whether your task is notary renewal, registration, authentication, or Certificate of Official Character.
  2. Check the fee and payment instructions before visiting.
  3. If you are applying or renewing as a notary, also review New York Department of State notary instructions.
  4. Bring your commission or identifying documents when the service requires proof.

Veteran servicesNassau County Clerk Veteran Services

After opening this link:

  1. Review DD214 recording and certified-copy options.
  2. Check privacy protections before recording military discharge paperwork.
  3. Bring valid identification and any required military documents.
  4. Use the Clerk’s current fee page for certified copy costs.

Which Nassau County Office Do You Need?

Many users search “Nassau County Clerk” when they actually need a different office. Use this quick guide before you call or visit, especially if your request involves courts, property taxes, assessment, marriage licenses, birth records, death records, or town-level records.

Use the Nassau County Clerk for

  • Recorded deeds, mortgages, satisfactions, liens, maps, and land records.
  • Certified copies of Clerk-recorded real estate documents.
  • Business certificates and DBA filings in Nassau County.
  • Notary registration, renewal support, authentication, and related notary filings.
  • Passport acceptance services.
  • Veterans discharge filing and certified DD214 copies.
  • Supreme and County Court file support handled by the Clerk’s legal division.

Check another office for

  • Property assessment data, exemptions, tax maps, and assessed value questions.
  • Property tax payment questions and tax bill issues.
  • Town, city, or village birth, death, and marriage records.
  • District Court, Family Court, Surrogate’s Court, village court, or traffic court calendar questions.
  • LLC or corporation formation filed with New York State.
  • Police, sheriff, correction, or criminal-history questions not handled by Clerk records.

Property lookupNassau County Land Records Viewer / Assessment Lookup

After opening this link:

  1. Use this viewer for assessment-related property information, tax map details, district information, exemptions, and comparable sales where available.
  2. Search by property details or section/block/lot when you have them.
  3. Remember that assessment data is not the same as a certified recorded deed from the County Clerk.
  4. Use the County Clerk’s record search or certified-copy process for legal recorded documents.
Local Nassau tip: for recorded real estate documents, the County Clerk’s record indexes and section/block/lot references are often more useful than a street-address-only search. For tax assessment questions, start with the Land Records Viewer or Assessment resources instead.

Internal Links for Related County Clerk Guides

These related guides may help if you are comparing county clerk services, trying to understand which clerk office handles which record, or building a broader records-search workflow across counties.

County Clerk Near Me: Find Offices, Hours, Records & Services Dallas County Clerk: Records, Forms, Fees & Office Details DuPage County Clerk: Records, Forms, Fees & Office Details Travis County Clerk: Records, Office Hours & Service Guide Jefferson County Clerk: Records, Locations & Clerk Services Williamson County Clerk: Records, Locations & Clerk Services

Official Nassau County Clerk Links Used in This Guide

Use these official resources for the most current office details, record-search access, forms, fees, passport information, court-file requests, and New York court filing guidance.

Nassau County Clerk Official Website Office Overview Nassau County Records Online Search Land Records Mortgages and Deeds Online Forms Filing for a Business Fees Notary Public Passport Services Court File Requisition Form Nassau County Courts

Privacy, Accuracy, and Public Records Notice

Public records can contain sensitive personal, legal, property, business, and financial information. Online access is not a guarantee that every record is complete, current, certified, or legally sufficient for your purpose.

This page is an independent informational guide and is not the official Nassau County Clerk website. It is not a consumer reporting agency. Do not use this page or linked record systems for employment screening, tenant screening, credit eligibility, insurance eligibility, or any Fair Credit Reporting Act purpose.

Verify before acting: confirm record accuracy, certified-copy requirements, recording fees, court filing rules, public-access limits, and office procedures directly with the Nassau County Clerk, the New York State Unified Court System, or the correct local government office.

Nassau County Clerk FAQs

1. What does the Nassau County Clerk do?

The Nassau County Clerk maintains many real estate records, records deeds and mortgages, provides certified recorded copies, supports Supreme and County Court file functions, handles business certificates, notary services, passport acceptance, veterans discharge filings, and several public-record services.

2. Where is the Nassau County Clerk’s Office located?

The Nassau County Clerk’s Office is located at 240 Old Country Road, Mineola, NY 11501. The main phone number is 516-571-2664.

3. How do I search Nassau County land records online?

Use the Nassau County Land Records Official Records Search. You can search by name, document type, recorded date, section/block/lot, document number, book/page, and other available criteria depending on the record type.

4. Can I get a certified copy of a Nassau County deed online?

The online records system can show and download many document images, but certified copies must be obtained from the Nassau County Clerk’s Office. For a deed copy, prepare the property section, block, and lot if available.

5. What information helps when requesting a deed or mortgage copy?

Helpful details include the owner name, property address, section/block/lot, document type, recording year, book/page, instrument number, and whether you need a plain copy or certified copy.

6. Does the Nassau County Clerk handle business certificates?

Yes. The Nassau County Clerk handles business certificate filings for county-level assumed-name or DBA records. The correct form depends on the business structure, and forms usually need to be completed and notarized before filing.

7. What are common Nassau County Clerk fees?

Common listed examples include $35 for a business certificate, $60 for notary renewal and registration, $3 for notary authentication, $5 for authentication of certain vital certificates, and online records system charges for image downloads or printed search results. Recording fees vary by document type.

8. Does the Nassau County Clerk issue birth, death, and marriage certificates?

Not always. In New York, many birth, death, and marriage records are handled by town, city, or village clerks or other vital records offices. The Nassau County Clerk can provide guidance and certain authentication or record services, but you should confirm the issuing office for the specific record.

9. Is the Nassau County Clerk the same as the court clerk?

The Nassau County Clerk serves important Supreme and County Court record functions, but not every court question belongs to the County Clerk. Court calendars, District Court matters, Family Court, Surrogate’s Court, and village court questions may require the New York State Unified Court System or the specific court office.

10. Is this the official Nassau County Clerk website?

No. This is an independent guide. Use the official Nassau County Clerk website and the official Nassau County records search links in this article for current fees, forms, hours, record access, passport instructions, and filing details.

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