How To Find Deceased Social Security Number can be obtained through two SSA products. For a $27 fee the agency issues a digital “computer extract,” a searchable PDF that reproduces every field from the original SSN application, including the nine‑digit number, legal name, maiden name and mailing address. Processing normally requires four to six weeks and payment may be made by check, money order or credit card using Form SSA‑711. For $21 a certified photocopy of the original application is provided, showing the applicant’s signature, notarized identity declaration and any supplemental documents such as a death certificate. Both requests demand a death certificate and documented proof of relationship to the deceased.
Call the SSA toll‑free line at 1‑800‑772‑1213, open weekdays 7 a.m.‑7 p.m. Eastern, to verify if the deceased ever received benefits. Provide the full name, birth date and any known SSN; the representative will confirm benefit status and advise on a formal request. Health‑care documents—hospital discharge summaries, CMS‑1500 forms or insurance claims—also record the SSN and are kept for at least seven years after death. For public research the Social Security Death Index supplies the nine‑digit number, name, birth and death dates, and last residence; subscription sites add filters such as maiden name or military service. If the SSN is unknown, submit Form SSA‑711 with a certified death certificate and proof of legal authority.
How to Find a Social Security Number of a Dead Relative
The Social Security Administration offers two distinct products when you request a deceased person’s file. For a fee of $27 you receive a digital “computer extract,” which is a searchable PDF that reproduces every field entered on the original SSN application, including the nine‑digit number, the applicant’s legal name, maiden name, and the mailing address recorded at the time of filing. Processing this request typically takes 4‑6 weeks, and payment can be made by check, money order, or credit card using the attached Form SSA‑711. For $21 the agency supplies a certified photocopy of the original application. This paper copy contains the applicant’s signature, the notarized declaration of identity, and the same personal details found in the electronic extract, plus any supplemental documents such as a death certificate that were filed with the original request. Both options require you to submit proof of death and a documented relationship to the deceased.
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How to Find the Social Security Number of Deceased Relative
The quickest way to confirm whether a deceased individual ever received Social Security benefits is to call the SSA’s toll‑free line at 1‑800‑772‑1213 between 7 a.m. and 7 p.m. Eastern time, Monday through Friday. When you call, have the person’s full name, date of birth, and Social Security number (if known) ready; the representative will verify the benefit status and can advise whether a formal request for the file is necessary. In addition to the phone inquiry, you can locate the SSN on the deceased’s health‑care documents, such as hospital discharge summaries, physician encounter forms (CMS‑1500), or insurance claim statements. These records routinely list the SSN as the primary identifier for billing and should be retained in the patient’s medical chart for at least seven years after death.
Can you provide a copy of a deceased person’s Social Security number …
The SSA requires a formal electronic request for a deceased individual’s record. Submit the request through the SSA’s online portal, upload a scanned death certificate, and include a signed statement of your legal authority (executor, administrator, or next‑of‑kin). Alternatively, you may download Form SSA‑711, complete it by hand, and mail it with a check or money order payable to “Social Security Administration.” The standard processing fee is $20; if you also need a certified verification of the data, an additional $10 is charged, and you must complete Form SSA‑714 to authorize credit‑card payment. All submissions are reviewed for authenticity, and the agency typically returns the requested copy within 10‑14 business days.
Because the SSA protects personal information, it will only release a deceased person’s SSN after confirming the requester’s relationship and receiving the required documentation. Providing a copy of the death certificate, proof of legal authority, and a valid payment method are mandatory steps in the approval workflow.
https://faq.ssa.gov/en-us/Topic/article/KA-02585 
How To Find Deceased Parent’s Social Security Number
To request a parent’s SSN, complete Form SSA‑711 and mail it to the SSA’s Office of FOIA, FOIA Workgroup, 6100 Wabash Ave, P.O. Box 33022, Baltimore, MD 21290‑3022. The package must contain your full name, telephone number, and email address, as well as the deceased’s legal name, date of birth or estimated age, and every known residential address. Attach a certified copy of the death certificate and a document proving your authority (court‑issued letters testamentary or probate). The SSA processes each request in approximately 30 days; if additional verification is required, they will contact you via the phone number provided.
https://lancecasey.com/how-to-find-deceased-parents-social-security-number/ 
How to Find the Social Security Number of My Deceased Father?
The Social Security Death Index (SSDI) is the most reliable public source for a deceased father’s SSN. The SSDI aggregates entries from the SSA’s Death Master File, covering every death reported to the agency from 1935 through 2014. Each record lists the nine‑digit SSN, full name, birth date, death date, and the last known city and state of residence. You can search the SSDI for free on government‑maintained sites such as the National Archives, or use subscription services like Ancestry.com or FamilySearch.org, which provide advanced filters for maiden names, military service, and place of death. Keep in mind that the SSDI does not include individuals whose deaths were not reported to the SSA, so cross‑checking with probate records may be necessary.
https://oureverydaylife.com/social-security-number-deceased-father-7800147.html 
REQUEST FOR DECEASED INDIVIDUAL’S SOCIAL SECURITY RECORD
The SSA’s fee schedule for a computer extract of a deceased individual’s application is itemized as follows: Line A – $20 for the basic extract when the SSN is supplied; Line B – $20 if the request does not include the SSN; Line C – $3 for expedited processing (if offered); Line D – $10 additional charge when a certified verification of the data is required; Line E – any applicable state or local tax. Add the amounts from Lines A through E and report the total on Line F. Submit the completed fee worksheet with Form SSA‑711, a copy of the death certificate, and a verified statement of authority. Payments can be made by check, money order, or credit card via Form SSA‑714.
https://www.ssa.gov/forms/ssa-711.pdf 
Perform a social security number lookup on someone who has died?
If you already possess a deceased person’s SSN, many public‑records aggregators allow you to enter the number and retrieve the associated name, birth date, and death date. For individuals whose death occurred more than three years ago, the SSN often appears in genealogy databases such as FamilySearch, Ancestry, or MyHeritage, which index the Death Master File and SSDI records. These sites typically require a subscription for full access, but the basic search results include the essential identifiers needed to confirm the person’s identity. When the SSN is not known, the best approach is to request the deceased’s file from the SSA using Form SSA‑711, as described earlier.
https://www.usatrace.com/can-i-perform-a-social-security-number-lookup-on-someone-who-has-died/ 
How to Verify a Death via a Social Security Number
Enter the nine‑digit SSN into the SSA’s online verification tool, omitting hyphens. The system returns the registrant’s full legal name, exact birth date, recorded date of death, and calculated age at death. It also confirms whether the death has been officially recorded. Additional fields include the state and county of birth, a geographic information system (GIS) marker indicating the last known residence, and the ZIP code associated with that address. This information is drawn directly from the Death Master File, ensuring that the data reflects the most recent update supplied by state vital‑statistics offices.
https://legalbeagle.com/5743576-verify-via-social-security-number.html 
Data Exchange – Requesting SSA’s Death Information
The SSA’s Data Exchange program provides authorized federal and state agencies with death files. Each file may contain the deceased’s SSN, first, middle, and last names, date of birth, date of death, and, when available, the state‑issued death certificate. Full‑file requests also include the individual’s last known residence, death‑record jurisdiction, and any linked state death‑record identifiers. Under §205(r) of the Social Security Act, the SSA distributes these files only to agencies that have a statutory mandate to receive them, such as the Centers for Disease Control and Prevention, the National Institutes of Health, and state Medicaid programs. Requests must be submitted through the SSA’s secure portal, and agencies receive the data in encrypted CSV format.
https://www.ssa.gov/dataexchange/request_dmf.html 
Social Security Death Index
The Social Security Death Index (SSDI) is an official database compiled by the U.S. Social Security Administration that lists every death reported to the agency. As of 2025, the index contains more than 94 million entries, each entry providing the deceased’s SSN, full name, birth date, date of death, and the last city and state of residence. The SSDI is refreshed monthly and can be accessed through public‑record websites, many of which offer free basic searches and premium services with advanced filters such as military service, place of burial, and benefit start date. Researchers use the SSDI to verify genealogical claims, locate missing heirs, and corroborate information found in probate or court records.
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