HMRC has updated form 64-8. Agents are advised to use the new form from 31 March 2022 on. Form 64-8 is the form used to authorise a tax agent to act on your behalf. The new form now allows a combined registration for PAYE and CIS online services

The new form 64-8 was released on 31 March 2022. 

Use this form to give authorisation for an agent to deal directly with HMRC on your behalf, such as:

If the person you want to authorise is not in any of these professions, you can appoint a 'trusted helper'.

A person appointed as a tax agent is able to register you and deal with your tax affairs for:

WARNING: a 64-8 does not allow an Agent to:

Other Agent authority forms

Tax Credit and Child Benefit: form TC689

PAYE and CIS online: form FBI2

If you want to submit a subject access request (find out about a person's tax information, say if they have died)

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Anti-Money Laundering Zone
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External links

HMRC guidance: New form 64-8

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