{"id":35116,"date":"2024-08-07T13:34:54","date_gmt":"2024-08-07T12:34:54","guid":{"rendered":"https:\/\/taxfix.com\/en-uk\/?p=35116"},"modified":"2025-06-04T11:29:53","modified_gmt":"2025-06-04T10:29:53","slug":"request-your-companies-house-authentication-code","status":"publish","type":"post","link":"https:\/\/taxfix.com\/en-uk\/limited-companies\/request-your-companies-house-authentication-code\/","title":{"rendered":"Request your Companies House authentication code"},"content":{"rendered":"\n<p>Setting up a limited company is exciting! But the paperwork? Not so much. To request <a href=\"https:\/\/taxfix.com\/en-uk\/glossary\/companies-house\/\">Companies House<\/a> authentication code might seem like just another task to add to the list, but it\u2019s quite straightforward to get your hands on one.<\/p>\n\n\n\n<p>In this guide, we\u2019ll walk you through how to get your authentication code and explain why you\u2019ll need it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is a Companies House authentication code?<\/h2>\n\n\n\n<p>A Companies House authentication code is made up of 6 digits, and it\u2019s key when it comes to updating your business activity online.&nbsp;<\/p>\n\n\n\n<p>It&#8217;s your digital equivalent to a company&#8217;s officer&#8217;s signature. But why do you need one? Well, it allows you to easily manage and update information about your company.<\/p>\n\n\n\n<p>Without it, you won\u2019t be able to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>File your <a href=\"https:\/\/taxfix.com\/en-uk\/limited-companies\/what-are-year-end-accounts\/\">accounts<\/a><\/li>\n\n\n\n<li>File your <a href=\"https:\/\/taxfix.com\/en-uk\/limited-companies\/confirmation-statement-overdue\/\">confirmation statement<\/a><\/li>\n\n\n\n<li>Make changes to your company, like updating your address<\/li>\n\n\n\n<li>Close your company<\/li>\n<\/ul>\n\n\n\n<p>So, now that we can agree it\u2019s important, let\u2019s find out how you can request one from Companies House.<\/p>\n\n\n<\/div> <!-- .c-body -->\n\n<div class=\"b-cta-mini m-yellow m-align-left\">\n    \n    <div class=\"b-cta-mini__content\">\n\n        \n        <h2 class=\"b-cta-mini__title\">Too much work?<\/h2>\n\n        \n        \n        <div class=\"b-cta-mini__body\">\n            <div class=\"b-block-body\"><p><!-- wp:paragraph --><\/p>\n<p>We totally understand. If you\u2019re looking for some guidance on your situation, get expert advice from our accredited accountants through a tax consultation service in just a few clicks.<\/p>\n<p><!-- \/wp:paragraph --> <!-- wp:paragraph --><\/p>\n<p>Your future self will thank you!<\/p>\n<p><!-- \/wp:paragraph --><\/p>\n<\/div>\n        <\/div>\n\n        \n        \n        <div class=\"b-cta-mini__action\">\n\n            <a href=\"https:\/\/taxfix.com\/en-uk\/tax-advice\/\" class=\"c-button m-large  m-mobile-fullwidth\">Learn more<\/a>\n\n\n        <\/div>\n\n        \n    <\/div>\n<\/div> <!-- .b-cta-mini -->\n\n<div class=\"c-body\">\n\n\n\n\n<h2 class=\"wp-block-heading\">How to request Companies House authentication code<\/h2>\n\n\n\n<p>If you\u2019ve forgotten your code or need a reminder, here\u2019s how you can get one:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Log in to Companies House&nbsp;<\/h3>\n\n\n\n<p>Head to the Companies House website and <a href=\"https:\/\/idam-ui.company-information.service.gov.uk\/account\/login\/\" target=\"_blank\" rel=\"noreferrer noopener\">sign in<\/a> via their WebFiling service. If you don\u2019t have an account already, you can <a href=\"https:\/\/idam-ui.company-information.service.gov.uk\/account\/register\/_start\/\" target=\"_blank\" rel=\"noreferrer noopener\">create one here<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Find the authentication code section<\/h3>\n\n\n\n<p>Once you\u2019re logged in, find the section for managing your authentication code. This will be under your account settings or company security.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Request a new code<\/h3>\n\n\n\n<p>Follow the on-screen prompts to request a new authentication code. You\u2019ll need to fill out a form, but this should take no time at all.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Wait for your code<\/h3>\n\n\n\n<p>Companies House will send your code to your registered address or email. It should arrive within a few days. If you already have one, they\u2019ll send you a reminder.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why haven\u2019t I received my Companies House authentication code yet?<\/h3>\n\n\n\n<p>Your code can take up to 5 working days to arrive. If you still haven\u2019t received it after this time, check that your physical address and email address are correct. If they are, <a href=\"https:\/\/www.gov.uk\/contact-companies-house\" target=\"_blank\" rel=\"noreferrer noopener\">get in touch with Companies House<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to use your authentication code<\/h2>\n\n\n\n<p>Once you have your code, you can use it to access your company\u2019s online account and make updates. So, make sure you keep a record of it somewhere safe and don\u2019t share it with anyone who isn\u2019t authorised.&nbsp;<\/p>\n\n\n\n<p>You\u2019ll need to share your code with your accountant so that they can file updates for you \u2013 like your annual company tax return.<\/p>\n\n\n\n<p>You can also use it with third-party accounting software, but you\u2019ll need to <a href=\"https:\/\/www.gov.uk\/government\/publications\/apply-for-a-companies-house-online-filing-presenter-account\" target=\"_blank\" rel=\"noreferrer noopener\">set up an online filing account<\/a> first.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Can Taxfix help?<\/h2>\n\n\n\n<p>Of course! If you\u2019re looking for an accredited accountant to help you manage online activity for your business, you\u2019re in the right place. Quick, easy and all for a one-off, fixed price. <a href=\"https:\/\/taxfix.com\/en-uk\/tax-advice\/\">Get started here.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Setting up a limited company is exciting! But the paperwork? Not so much. To request Companies House authentication code might seem like just another task to add to the list, but it\u2019s quite straightforward to get your hands on one. In this guide, we\u2019ll walk you through how to get your authentication code and explain [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[503],"tags":[505,102,502],"class_list":["post-35116","post","type-post","status-publish","format-standard","hentry","category-limited-companies","tag-companies-house","tag-hmrc","tag-limited-company"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Request your Companies House authentication code &#8211; Taxfix<\/title>\n<meta name=\"description\" content=\"Learn how to request Companies House authentication code. it\u2019s key when it comes to updating your business activity online.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/taxfix.com\/en-uk\/limited-companies\/request-your-companies-house-authentication-code\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Request your Companies House authentication code &#8211; 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