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HMRC Self Assessment Login: Step-by-Step Guide

HMRC & Compliance · 7 min read ·

A complete guide to logging into your HMRC Self Assessment account through the Government Gateway, including how to register, reset your password, and troubleshoot common issues.

Written by Krishna, Founder & HMRC-registered tax agent at TaxRoot.

How do I find my Government Gateway user ID?

With TaxRoot, you do not need to manage Government Gateway yourself. As an HMRC-authorised agent, we handle all HMRC communication and filing on your behalf. If you do have an existing Government Gateway user ID, it is a 12-digit number sent to your registered email. But the easiest option is…

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