{"id":892,"date":"2025-03-26T13:43:28","date_gmt":"2025-03-26T13:43:28","guid":{"rendered":"https:\/\/www.tax1099.com\/glossary\/?p=892"},"modified":"2025-03-26T13:43:28","modified_gmt":"2025-03-26T13:43:28","slug":"core-types-of-tin","status":"publish","type":"post","link":"https:\/\/www.tax1099.com\/glossary\/core-types-of-tin\/","title":{"rendered":"Core Types of Tax Identification Numbers"},"content":{"rendered":"<p>The Internal Revenue Service (IRS) and Social Security Administration (SSA) issue five primary types of tax identification numbers, each serving distinct purposes for different categories of taxpayers.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Social Security Numbers<\/strong> (SSNs) The SSN stands as the most widely used tax identifier in the United States. Created in 1936, SSNs track earnings histories of U.S. workers for Social Security benefit calculations. These nine-digit identifiers follow the format XXX-XX-XXXX and enable government agencies to monitor individual records while allowing businesses to track financial information.<\/p>\n<p><strong>Employer Identification Numbers<\/strong> (EINs) Also known as federal tax identification numbers, EINs follow a XX-XXXXXXX format. Businesses need an EIN specifically for:<\/p>\n<ul>\n<li>Operating partnerships or corporations<\/li>\n<li>Managing employment taxes<\/li>\n<li>Opening business bank accounts<\/li>\n<li>Filing excise tax returns<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>Individual Taxpayer Identification Numbers<\/strong> (ITINs) ITINs serve foreign individuals who cannot obtain SSNs but must file U.S. taxes. These numbers always begin with &#8220;9&#8221; and follow the same nine-digit format as SSNs. The IRS issues ITINs to:<\/p>\n<ul>\n<li>Nonresident aliens claiming tax treaty benefits<\/li>\n<li>Resident aliens filing U.S. tax returns<\/li>\n<li>Dependents of U.S. citizens living abroad<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>Adoption Taxpayer Identification Numbers (ATINs)<\/strong> ATINs provide temporary nine-digit identifiers for children being adopted when prospective parents cannot obtain the child&#8217;s SSN during the adoption process.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Preparer Tax Identification Numbers (PTINs)<\/strong> Starting January 1, 2011, all paid tax preparers must use PTINs when filing returns. Unlike optional usage in previous years, PTINs have become mandatory for professional tax preparation services.<\/p>\n<p>Each <a href=\"https:\/\/www.tax1099.com\/features\/tin-lookup-tin-check-verification\">TIN<\/a> type requires specific documentation for application. Furthermore, the IRS maintains strict verification processes, particularly for ITINs, where applicants must submit original documents or agency-certified copies to prove identity and foreign status. Most notably, the Social Security Administration has issued more than 450 million original SSNs as of December 2008.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Internal Revenue Service (IRS) and Social Security Administration (SSA) issue five primary types of tax identification numbers, each serving distinct purposes for different categories of taxpayers. &nbsp; Social Security Numbers (SSNs) The SSN stands as the most widely used tax identifier in the United States. Created in 1936, SSNs track earnings histories of U.S. [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-892","post","type-post","status-publish","format-standard","hentry","category-c"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Tax Identification Numbers: SSN, EIN, ITIN &amp; More<\/title>\n<meta name=\"description\" content=\"Learn about Tax Identification Numbers, their types, purposes, and who needs them in under 120 characters.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tax1099.com\/glossary\/core-types-of-tin\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tax Identification Numbers: SSN, EIN, ITIN &amp; More\" \/>\n<meta property=\"og:description\" content=\"Learn about Tax Identification Numbers, their types, purposes, and who needs them in under 120 characters.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.tax1099.com\/glossary\/core-types-of-tin\/\" \/>\n<meta property=\"og:site_name\" content=\"tax1099 - 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