GOV.UK One Login - enhanced security from 13 Oct 2025

by Aitch, posted in Business Support

From 13 October 2025, access to Companies House WebFiling will require GOV.UK One Login. This replaces the older Government Gateway sign-in and is part of the wider move towards a single, more secure login across government services.

When you next log into WebFiling after that date, you will be prompted to connect your existing account to GOV.UK One Login. Without doing so, you will not be able to file company documents. This shift follows the earlier transition of the “Find and update company information” service in 2024.

The new login system provides additional benefits. It brings stronger security through two-factor authentication, reducing the risk of fraud and misuse. It also allows you to use one set of login details for multiple government services, cutting down on the need to manage different usernames and passwords. Over time, GOV.UK One Login will replace all other government login systems.

To prepare for the change, users should check that their WebFiling email address is up to date and accessible. If they also use the “Find and update company information” service, they should ensure both accounts use the same email address. It may be worth creating a GOV.UK One Login in advance using that same email. Companies House is also advising that users review and clean up their “My companies” list to remove any businesses they no longer file for.

Looking further ahead, identity verification becomes compulsory from 18 November 2025 for all new and existing directors and Persons with Significant Control. This can be completed voluntarily now via GOV.UK One Login or, alternatively, through an authorised agent.

In short, from mid-October WebFiling accounts must be connected to GOV.UK One Login. Preparing early will help avoid delays and ensure users are ready for the new identity checks that follow in November.

Source:Other | 07-09-2025
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Aitch
I'm Aitch, the Founder and CEO of CIGMA Accounting Ltd. As a Chartered Management Accountant and as a CIMA member, I've spent more than 16 years helping businesses, entrepreneurs, landlords, and individuals with tax planning, accounting, and HMRC compliance. As a chartered accountant in London, I'm passionate about making complex tax matters easier to understand and helping clients make confident financial decisions. Over the years, I've advised start-ups, SMEs, established companies, and high-net-worth individuals across a wide range of tax and accounting matters. My expertise includes Corporation Tax, Self-Assessment, Capital Gains Tax, Inheritance Tax planning, R&D tax relief, capital allowances, international tax, and resolving complex HMRC compliance issues. Whether clients need a business accountant, tax accountant, or strategic tax advisor, my focus is always on delivering practical advice that creates long-term value. One of my specialist areas is Making Tax Digital (MTD). I've worked extensively with businesses preparing HMRC's digital reporting requirements, helping them move to cloud accounting, improve financial processes, and adopt technology that makes compliance more efficient. I regularly speak at Making Tax Digital roadshows, industry events, and educational sessions in collaboration with Zoho Books, sharing practical insights into digital accounting, tax legislation, and the future of the profession. Many business owners looking for the best accounting firm in London are not simply searching for an accountant they're looking for trusted advice, responsive support, and long-term value. That's the approach I've taken in building CIGMA Accounting. My team and I work closely with businesses across London and the UK, providing accounting services, tax advisory, bookkeeping, payroll, VAT, company accounts, and strategic tax planning tailored to each client's goals. Through this website, I share practical guidance on UK taxation, Making Tax Digital, HMRC updates, Corporation Tax, Self-Assessment, and business finance. My aim is to provide reliable, straightforward information that helps business owners understand changing regulations, reduce compliance risks, and make informed financial decisions with confidence.
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