If you need to file a tax return, manage VAT, or handle payroll in the UK, you almost certainly need a Government Gateway account. It remains the primary way millions of people access HMRC online services and their tax account, even as the newer GOV.UK One Login system rolls out. This guide walks you through everything from creating your account to troubleshooting common problems.
Key Takeaways
A government gateway account is a secure login system that gives you access to HMRC online services such as Self Assessment, PAYE, VAT, and Corporation Tax. It is made up of a 12-digit government gateway user id, a password, and additional security details like recovery words and access codes.
The UK government is transitioning to a newer authentication system known as GOV.UK One Login. However, existing Government Gateway user IDs and passwords remain widely used for many HMRC services throughout 2024–2026, particularly for business taxes like Corporation Tax and VAT.
Setting up a new account is straightforward, but activating specific tax services often requires entering post activation codes sent to your registered address, which can take up to 10 working days. Plan ahead of filing deadlines to avoid delays. Once activated, you can view your tax account, file returns, manage payments, and stay compliant from a single dashboard.
What is a Government Gateway account?
The Government Gateway is a secure login system first introduced by the UK government in January 2001. It allows access to UK government services online, giving users a single, secure entry point to manage their interactions with HMRC and other departments. Before its launch, taxpayers relied on paper-based or service-specific systems that were far less convenient.
A government gateway account consists of a government gateway user id (typically a 12-digit number), a password, and additional security measures such as a recovery word, a linked email address, and optional multi-factor authentication. Users create an account to receive a unique 12-digit user ID, which they then use alongside their password to sign in.
The Gateway delivers streamlined transactions between multiple government services. You can use it to access Self Assessment, PAYE (both as an employee and as one of the employers registered with HMRC), VAT returns including making tax digital submissions, and corporation tax filings for limited companies.
From around 2023 onward, GOV.UK One Login has started to replace Government Gateway for some services. But as of mid-2026, millions of people still actively rely on their Government Gateway credentials, especially for business taxes and agent accounts that have not yet migrated.
Government Gateway user ID and sign in details
To sign in to your HMRC account, you need your government gateway user id, your password, and - where you have set it up - an extra security code sent by text, voice call, or generated through an authenticator app.
Your government gateway id is typically a 12-digit number, unique to each government gateway user. It is not the same as your unique taxpayer reference (which is 10 digits) or your national insurance number (which follows a letter-number-letter format). A Government Gateway ID is essential for tax compliance, as it connects you to all your enrolled HMRC services.
Here is what makes up the full set of sign in details:
User ID - the 12-digit number issued when you first registered
Password - created by you, subject to minimum length and complexity rules
Recovery word - a memorable word set during registration, used if you need to reset your password
Linked email address - used for confirmation code delivery and account recovery
Mobile phone or authenticator app - for receiving security codes as part of two-factor authentication
You can usually find your government gateway id in the original confirmation email you received when you registered, in any HMRC letters sent to your home address, or stored in a password manager if you saved it there.
How to set up a new Government Gateway account
You will need to create a new account if you are filing your first self assessment tax return, registering as self employed, setting up VAT for your business, or accessing certain HMRC services for the first time. A Government Gateway account is needed for UK government services across a wide range of tax and compliance obligations.
Before you start, have the following details ready:
Full legal name
A valid email address
Your UK address
Your national insurance number
A UK passport or driving licence (if identity verification is required)
You can create Government Gateway sign in details online by following these steps:
Go to the official GOV.UK HMRC sign in page
Select "Create sign in details" or "Register for HMRC online services"
Enter your email address and check your inbox for a confirmation code
Enter the code to verify your email
Set your full name, create a password, and choose a recovery word
The system will generate and display your new 12-digit user id - save it immediately
You must verify your identity to complete account setup for certain services. This may involve answering questions based on your credit record or using the GOV.UK ID Check app.
Store your user id and password securely right away. HMRC cannot re-send your password - they can only help you reset it.
Note that for some services such as Making Tax Digital for VAT or the Childcare Service, a separate or additional Government Gateway account may be required. The section on activating services below covers this in more detail.
Signing in to HMRC online services
Once you have a Government Gateway account, you can sign in to HMRC online services to manage both personal and business taxes from a single dashboard.
The sign in process works like this:
Visit the HMRC online services page on GOV.UK
Select the service you need (Self Assessment, PAYE, VAT, Corporation Tax, or others)
Enter your government gateway user id and password
If prompted, enter the security code sent to your phone or generated by your authenticator app
You will land on your tax account dashboard
Existing users who already have HMRC services linked should continue using the same Government Gateway sign in details for all their enrolled services. There is no need to create a new account unless you need a different account type.
If you are a first-time user who has never accessed HMRC online services, choose "Create new sign in details" even if you already have a GOV.UK one login for other government services. The two systems are not yet fully merged.
Here are common services you can access once signed in:
Service | What you can do |
|---|---|
Self Assessment | File returns, view calculations, check payment deadlines |
PAYE for employers | Manage payroll, send RTI submissions, view PAYE reference |
VAT (including Making Tax Digital) | Submit VAT returns, view VAT account, manage direct debits |
Corporation Tax | File CT600 for limited companies, check payment status |
Construction Industry Scheme | Verify subcontractors, file monthly returns |
Activating and managing specific HMRC services
Creating a Government Gateway account is only the first step. You then need to activate services to link specific tax services to your account.
Here is how the process generally works:
Sign in to your HMRC online account
Select "Add a tax, duty or scheme" from your dashboard
Choose the service you want (for example, Self Assessment or VAT)
Enter the required reference numbers - your unique taxpayer reference for Self Assessment, your VAT registration number, your PAYE reference for employers, and so on
HMRC will typically send activation codes by post to your registered address
Once received, sign back in and enter the code to complete activation
These post activation codes usually arrive within 10 working days and are valid for a limited window (commonly 28 days). If the code expires before you use it, you can request a new one.
Link specific tax services to your Government Gateway account after verification to unlock full functionality. Once activated, your tax account dashboard lets you:
View tax calculations and statements
Check upcoming payment deadlines
Update your address or personal details
Download correspondence and records
File returns and manage payments
If you run limited companies or are self employed with multiple tax obligations, make sure each reference number is added under the correct account type. Organisation accounts are required for corporation tax and employer PAYE - individual accounts will not work for those.
Government Gateway vs GOV.UK One Login
GOV.UK One Login is the newer single sign in system the UK government has been rolling out since around 2022–2023. It aims to replace Government Gateway and other legacy login methods with a single email-and-password system, backed by modern identity verification.
The UK government is transitioning to this newer authentication system, but the process is gradual. As of 9 February 2026, new individual HMRC customers who do not already have a Government Gateway account must use GOV.UK One Login instead. Existing Gateway users keep their credentials for now.
Here is how the two systems currently compare:
Feature | Government Gateway | GOV.UK One Login |
|---|---|---|
Sign in method | 12-digit user id + password | Email + password |
Identity verification | Postal activation codes, recovery word | App-based ID check, biometric, credit data |
Business tax support | Full (VAT, Corporation Tax, PAYE, CIS) | Limited - many services not yet migrated |
Number of services | Hundreds of HMRC services | Over 200 government services (growing) |
Status | Legacy, still widely used | Expanding, mandatory for new HMRC users from Feb 2026 |
Key things to know during the transition:
Creating a one login account does not automatically delete or merge your existing Government Gateway account
You may need to maintain both for different services
By early 2024, nearly 3.8 million people had proved their identity via One Login
The programme is projected to save over £700 million through reduced duplication and helpdesk costs
HMRC will contact existing Gateway users when it is time to switch - there will be no sudden cutoff
Troubleshooting common Government Gateway problems
Users frequently run into issues with forgotten credentials, locked accounts, or services that refuse their existing account type. Here is how to handle the most common problems.
Forgotten user ID:
Click "I've forgotten my user ID" on the sign in page
Enter your registered email address or other identifying details
HMRC will send a reminder to your email - check spam folders if it does not arrive
Forgotten password:
Click "I've forgotten my password" on the sign in page
Enter your user id and the system will send a reset link or code to your registered email or phone
You may be asked for your recovery word as an extra security step
Account locked out:
If you enter the wrong password too many times, your account is locked for 2 hours
HMRC cannot unlock it early - you simply need to wait and try again
Check that you are using the correct user id, as having multiple accounts is a common source of confusion
Account "not suitable" for a service:
Some services (such as childcare or certain agent functions) will not work with an individual account that is already linked to Self Assessment
The solution is usually to set up a new Government Gateway account dedicated to that service
Keep your original account active for existing services like Self Assessment or business taxes
Activation codes not arriving:
Allow up to 10 working days - delays happen, especially during busy periods
If the waiting period has passed, request a new code through your HMRC online account
Double-check that your registered address is correct
Keeping your Government Gateway account secure
Your Government Gateway sign in details give access to sensitive tax and personal information, including your income records, payment history, and correspondence with HMRC. Protecting these credentials is not optional.
Follow these practices to keep your account safe:
Use a strong, unique password that you do not reuse on other websites
Enable two-factor authentication (SMS, voice call, or authenticator app) wherever available
Never share your government gateway user id or password by email, phone, or text - HMRC will never ask for these
Keep your linked email address and mobile phone number up to date so that account recovery and security service alerts work correctly
Use a reputable password manager to save and protect your credentials
When accessing your account:
Always go through the official gov.uk website or use a saved bookmark
Avoid clicking links in unexpected emails or text messages claiming to be from HMRC
Sign out after every session, especially on shared or public computers
Periodically review your security settings and update your password if you suspect any compromise
Phishing remains one of the biggest threats to Government Gateway users. If an email or message feels off, go directly to GOV.UK rather than clicking any link.
FAQ
Can I still create a new Government Gateway account in 2026?
As of mid-2026, many HMRC services still allow - and in some cases require - you to create a new Government Gateway account. This is particularly true for business taxes such as Corporation Tax and employer PAYE, which have not yet fully migrated to GOV.UK One Login. The official GOV.UK guidance will always indicate at the start of the journey whether a service uses Government Gateway sign in details or One Login. Follow the specific instructions on the page for the service you need rather than assuming which system applies.
Do I need a separate Government Gateway account for each business I run?
One government gateway user can typically manage multiple HMRC services and multiple business tax accounts from a single login, provided each tax reference (unique taxpayer reference, VAT number, PAYE reference) is added correctly under the right account type. However, some specialist services - such as childcare accounts or agent accounts - may require separate Government Gateway accounts. Keep clear records of which user id is used for each role (individual, organisation, or agent) to avoid confusion.
What if my Government Gateway account is not suitable for a service I need?
Certain services will refuse an existing account if it is already linked to a different role. For example, an individual account used for Self Assessment cannot be used to register for Corporation Tax, which requires an organisation account. The normal solution is to set up a new account dedicated to that service while continuing to use the original for existing obligations. Do not delete your original account unless HMRC explicitly instructs you to - it preserves access to historic records and messages.
Can I merge my Government Gateway account with GOV.UK One Login?
There is currently no user-controlled way to merge a Government Gateway account into GOV.UK One Login. For some services, the government may gradually link or migrate access behind the scenes, but this is happening on a service-by-service basis. Continue to keep your Government Gateway sign in details safe until HMRC announces a complete transition. Check the latest GOV.UK updates periodically for any changes to how the two systems work together.
How long does it take to activate HMRC services after creating my account?
Online registration is usually immediate, but activation for specific tax services often requires entering an activation code sent by post. These codes typically arrive within 10 working days and are valid for a limited period (usually around 28 days). If you miss the window, you can request a replacement. The practical advice is to start the process several weeks before you need to file returns or make payments - this gives you enough buffer to receive your code, enter it, and complete your setup without any last-minute pressure.
