What you need to know...
Most people feel overwhelmed when dealing with HMRC directly. An accountant can handle everything from tax returns to correspondence on your behalf. But first, you need to grant them official permission to act for you.
In this article, we'll cover the complete process of authorising an accountant with HMRC. You'll learn exactly what permissions to grant and how to manage them. Plus, we'll explain what happens after you've set everything up.
What does it mean to authorise an accountant with HMRC?
When you authorise an accountant, you're giving them official permission to access your tax records. This lets them submit returns and communicate with HMRC directly on your behalf. It creates a secure digital link between your accounts.
Once set up, HMRC will deal with your accountant instead of contacting you. The authorisation can cover income tax, VAT, corporation tax and other business taxes. You can set this up whether you're an individual or running a company.
How do I set up accountant access through my Government Gateway?
First, log into your personal or business tax account online. Navigate to the 'Manage account' section and select 'Authorise an agent to deal with HMRC for you'. Your accountant will give you their agent code to enter when prompted.
Next, choose which taxes you want them to handle. The system displays all available options clearly, so you won't miss anything important. Finally, confirm the authorisation request and you're done.
The whole process typically takes less than ten minutes. I remember feeling nervous the first time I did this, but the system guides you through each step. Most accountants will also walk you through it if needed.
What information does my accountant need to provide?
Your accountant needs their unique HMRC agent reference number. They must also confirm they're registered with a professional body. Additionally, they'll specify which tax areas they want access to.
Your personal or business details are needed for verification purposes. A signed letter of engagement outlining their services is standard practice. Most will also provide a copy of their professional indemnity insurance.
Can I give partial access or does it have to be everything?
You're in complete control of which taxes they can access. Income tax and National Insurance often come as a package deal. However, VAT can be authorised separately from other business taxes.
Corporation tax requires specific business account access. You can add or remove permissions whenever you want. Some accountants need full access to give you the best advice.
What happens after I submit the authorisation?
After you submit the authorisation, HMRC sends confirmation to both you and your accountant straight away, and your accountant gains immediate access to the tax areas you’ve approved so they can view records, submit returns, and handle correspondence.
You’ll stop receiving most direct communication from HMRC, and while changes usually take effect within 24 hours, you can still access your own account as normal. If you run into any access issues during this process, our guide on HMRC Online Account Login Problems: How to Fix Them can help you get back in quickly.
How do I remove or change my accountant's permissions?
Log back into your whenever you need to. Find the 'View and remove authorisations' section and select which permissions you want to change. The system shows all current authorisations clearly.
Confirm the changes and they take effect immediately. Your accountant loses access to any cancelled areas right away. HMRC will start sending correspondence directly to you again.
Common questions about accountant authorisation
Many people wonder if they can authorise multiple accountants. The answer is yes you can have different accountants for different taxes. For example, one might handle your personal tax while another manages VAT.
Others ask about security concerns. HMRC's system is highly secure, and accountants can only access what you've specifically authorised. They cannot change your personal details or bank information.
Some worry about losing control of their tax affairs. Remember, you maintain full access to everything and can revoke permissions instantly. Your accountant simply acts alongside you, not instead of you.
What to expect from your accountant after authorisation
Once authorised, your accountant will typically review your tax history first. They'll identify any issues or opportunities you might have missed. Most will schedule a call to discuss their findings.
They'll handle all routine correspondence with HMRC going forward. This includes responding to queries and submitting returns on time. You'll receive copies of everything for your records.
Your accountant should provide regular updates about your tax position. They'll also alert you to any changes in tax law that affect you. Good accountants become trusted advisors, not just form-fillers.
Final Summary
Authorising an accountant with HMRC is straightforward once you know the steps. The whole process usually takes less than 10 minutes online. Your accountant can guide you through it if you get stuck.
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