Sign in and send your Self Assessment tax return online.

Use your HM Revenue and Customs (HMRC) online account to sign in for: Sign in or set up a personal or business tax account, Self Assessment, Corporation Tax, PAYE for employers, …

Sign into or set up a personal tax account to check and manage HMRC records, including Income Tax, change of address, Self Assessment and company car tax.

Estimate your Self Assessment tax bill; Simplified expenses if you're self-employed; Business records if you're self-employed

Find the government service you need to sign in to. At the moment, there are separate accounts for different government services.

Jun 2, 2025 · Guidance to help you understand and fill in sections of your Self Assessment tax return.

Nov 19, 2020 · Register for Self Assessment, sign in and send your Self Assessment tax return online.

Mar 21, 2025 · Need to recover your HMRC Self Assessment sign in details? Follow our step-by-step guide to get back into your account quickly.

Apr 6, 2025 · If you want to get back to the self assessment online service, you need to click on the self assessment tile within your personal tax account. You will only be able to do this when …

Get your users’ identity checks done centrally by using GOV.UK One Login. You’ll get confirmation that the person is who they say they are without having to do any checks …