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HandWiki. Social Security Number. Encyclopedia. Available online: https://encyclopedia.pub/entry/31224 (accessed on 22 September 2026).
HandWiki. Social Security Number. Encyclopedia. Available at: https://encyclopedia.pub/entry/31224. Accessed September 22, 2026.
HandWiki. "Social Security Number" Encyclopedia, https://encyclopedia.pub/entry/31224 (accessed September 22, 2026).
HandWiki. (2022, October 25). Social Security Number. In Encyclopedia. https://encyclopedia.pub/entry/31224
HandWiki. "Social Security Number." Encyclopedia. Web. 25 October, 2022.
Social Security Number
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In the United States, a Social Security number (SSN) is a nine-digit number issued to U.S. citizens, permanent residents, and temporary (working) residents under section 205(c)(2) of the Social Security Act, codified as 42 U.S.C. § 405(c)(2). The number is issued to an individual by the Social Security Administration, an independent agency of the United States government. Although the original purpose for the number was for the Social Security Administration to track individuals, the Social Security number has become a de facto national identification number for taxation and other purposes. A Social Security number may be obtained by applying on Form SS-5, Application for a Social Security Number Card.

national identification ssn ss-5

References

  1. "Social Security: Chronology". United States Social Security Administration. https://www.ssa.gov/history/1930.html. 
  2. "The "First" Social Security Number; The Lowest Number". Social Security History. United States Social Security Administration. https://www.ssa.gov/history/ssn/firstcard.html. 
  3. "First Applicant on Pension List". Ogden Standard Examiner (Ogden, Utah): p. 8. December 2, 1936. https://newspaperarchive.com/ogden-standard-examiner-dec-02-1936-p-8/. 
  4. Long, Wayne S. (Spring 1993). "Social Security Numbers Issued: A 20-Year Review". Social Security Journal 56 (1): 82. https://www.ssa.gov/policy/docs/ssb/v56n1/v56n1p83.pdf. Retrieved October 19, 2018. 
  5. Goldberg, Jack (October 17, 1993). "A strategy for assembling samples of adult twin pairs in the United States". Statistics in Medicine 12 (18): 1693–1702. doi:10.1002/sim.4780121805. PMID 8248662. https://www.academia.edu/11871886. Retrieved October 19, 2018. 
  6. "Tax Reform Act of 1986". Social Security History. United States Social Security Administration. https://www.ssa.gov/history/ssn/reagantax.html. 
  7. Liebman, Jeffrey B. (December 2000). "Who Are the Ineligible EITC Recipients?". National Tax Journal 53 (4): 1165–1186. doi:10.17310/ntj.2000.4S1.06. https://www.ntanet.org/NTJ/53/4/ntj-v53n04p1165-86-who-are-ineligible-eitc.pdf. 
  8. "Social Security Number Chronology". Social Security Administration. https://www.ssa.gov/history/ssn/ssnchron.html. 
  9. "Social Security Numbers For Children". Social Security Administration. December 2017. https://www.ssa.gov/pubs/10023.html. 
  10. "Service Numbers and Social Security Numbers". National Archives. 2016-08-15. https://www.archives.gov/personnel-records-center/social-security-numbers. 
  11. Garamone, Jim (April 4, 2011). "DOD removes SSAN from ID cards". U.S. Army. https://www.army.mil/article/54310/dod_to_drop_social_security_numbers_from_id_cards. 
  12. ""Pay Unto Caesar": The Amish & Social Security". AmishNews.com. http://www.amishnews.com/amisharticles/amishss.htm. 
  13. "Amish reject giving Social Security numbers to get licenses". The Chippewa Herald. August 30, 1999. https://chippewa.com/article_8e69504b-81cb-5586-bdcb-616356e2b064.html. 
  14. "Version History". Social Security History. United States Social Security Administration. http://www.ssa.gov/history/ssn/ssnversions.html. 
  15. Pear, Robert (July 26, 1998). "The Nation; Not for Identification Purposes (Just Kidding)". The New York Times. https://www.nytimes.com/1998/07/26/weekinreview/the-nation-not-for-identification-purposes-just-kidding.html. 
  16. Kouri, Jim (March 9, 2005). "Social Security Cards: De Facto National Identification". American Chronicle. http://www.americanchronicle.com/articles/viewArticle.asp?articleID=3911. 
  17. "Social Security Number Not Required". Scribd.com. April 29, 2008. https://www.scribd.com/document/2682567/Social-Security-Number-Not-Required. 
  18. Mullen, Charles H. (March 18, 1998). "Letter to Mr. Scott McDonald". Office of Public Enquiries, Social Security Administration. https://mail.hiwaay.net/asc/. 
  19. "Can I refuse to give my Social Security number to a private business?". United States Social Security Administration. May 18, 2018. https://faq.ssa.gov/en-us/Topic/article/KA-02232. 
  20. 26 U.S.C. § 6109(d) https://www.law.cornell.edu/uscode/text/26/6109#d
  21. 26 U.S.C. § 6109(a) https://www.law.cornell.edu/uscode/text/26/6109#a
  22. 26 C.F.R. sec. 31.6011(b)-2(a)(1)(ii) https://www.gpo.gov/fdsys/pkg/CFR-2018-title26-vol17/xml/CFR-2018-title26-vol17-sec31-6011b-2.xml
  23. Timmer, John (July 17, 2009). "New algorithm guesses SSNs using date and place of birth". Ars Technica. https://arstechnica.com/science/2009/07/social-insecurity-numbers-open-to-hacking/. 
  24. Broache, Anne. "Congress may slap restrictions on SSN use - CNET News". News.cnet.com. http://news.cnet.com/Congress+may+slap+restrictions+on+SSN+use/2100-7348_3-6071441.html?tag=nefd.top. 
  25. "PTIN Requirements for Tax Return Preparers | Internal Revenue Service" (in en). https://www.irs.gov/tax-professionals/ptin-requirements-for-tax-return-preparers. 
  26. "Your Social Security Number And Card, "How can I protect my Social Security number?"". Social Security Administration. https://www.ssa.gov/pubs/10002.html. 
  27. Meyer, Bill (August 17, 2009). "How many Americans' Social Security numbers were officially duplicated for Pacific islanders?". The Plain Dealer. https://www.cleveland.com/nation/index.ssf/2009/08/how_many_americans_social_secu.html. 
  28. "Can I change my Social Security number?". https://faq.ssa.gov/en-us/Topic/article/KA-02220. 
  29. "New Numbers for Domestic Violence Victims". https://www.ssa.gov/pubs/EN-05-10093.pdf. 
  30. Social Security Administration. "The SSN Numbering Scheme". https://www.ssa.gov/history/ssn/geocard.html. 
  31. "Social Security Number Randomization". Socialsecurity.gov. https://www.ssa.gov/employer/randomization.html. 
  32. "The SSN Numbering Scheme". SocialSecurity.gov. https://www.ssa.gov/history/ssn/geocard.html. 
  33. "Did you know…? The last four digits of your Social Security ...". http://teipencpa.com/did-you-know-the-last-four-digits-of-your-social-security-number-are-especially-important. 
  34. "Social Security Number Allocations". Social Security Administration. https://www.ssa.gov/employer/stateweb.htm. 
  35. "Taxpayer Identification Numbers (TIN)". Internal Revenue Service. May 2, 2018. https://www.irs.gov/individuals/international-taxpayers/taxpayer-identification-numbers-tin. 
  36. "Social Security Number Randomization". Social Security Administration. https://www.ssa.gov/employer/randomization.html. 
  37. "RM 10201.035 Invalid Social Security Numbers (SSNs)". Program Operations Manual System (POMS). United States Social Security Administration. June 23, 2011. https://secure.ssa.gov/apps10/poms.nsf/lnx/0110201035. 
  38. "High Group List And Other Ways To Determine If An SSN Is Valid". Social Security Administration. https://www.ssa.gov/employer/ssnvhighgroup.htm. 
  39. "Q20: Are Social Security numbers reused after a person dies?". United States Social Security Administration. https://www.ssa.gov/history/hfaq.html. 
  40. Noyes, Katherine (November 12, 2015). "A tale of two women: same birthday, same Social Security number, same big-data mess". PC World. https://www.pcworld.com/article/3004654/government/a-tale-of-two-women-same-birthday-same-social-security-number-same-big-data-mess.html. 
  41. "Social Security Cards Issued by Woolworth". Social Security Administration. https://www.ssa.gov/history/ssn/misused.html. 
  42. Zetter, Kim (May 18, 2010). "LifeLock CEO's Identity Stolen 13 Times". Wired. https://www.wired.com/2010/05/lifelock-identity-theft/. Retrieved October 19, 2018. 
  43. Vijayan, Jaikumar (May 19, 2010). "LifeLock CEO said to be victim of identity theft 13 times". ComputerWorld. https://www.computerworld.com/article/2517761/data-privacy/lifelock-ceo-said-to-be-victim-of-identity-theft-13-times.html. 
  44. "Social Security Number Randomization". SocialSecurity.gov. https://www.ssa.gov/employer/randomization.html. 
  45. "Social Security Number Allocations". https://www.ssa.gov/employer/stateweb.htm. 
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