Data entry
You'll be asked to provide specific information relevant to the service you want to register for.
For example:
- Corporation Tax for Agents - your Corporation Tax agent reference number and registered office postcode (The postcode must match the postcode provided when you registered for your Corporation Tax agent reference)
- PAYE for Agents - your PAYE agent reference number and your postcode
- Self Assessment for Agents – your Self Assessment agent reference number and postcode.
- Stamp Taxes – for limited companies
registered with Companies House, you'll need your Companies House registration
number (CRN) and registered office postcode.
For partnerships or trusts under Self Assessment, your partnership or trust Unique Taxpayer Reference (UTR).
If you're self employed under Self Assessment, you'll need your Self Assessment UTR, National Insurance number and Self Assessment correspondence postcode - VAT for Agents – If you're not VAT registered, you'll need to obtain a VAT agent reference number, which you can access from the link on the ‘What you will need to enrol' screen. If you are VAT registered you'll enter your VAT registration number, business postcode, effective date of VAT registration, final month of last VAT Return submitted, and the Box 5 figure on your last submitted VAT return. For more detailed information on online services for agents, please follow the links be links below. Note: following these links will take you out of the online demonstrator.
Corporation Tax for agents and advisers
Self Assessment for agents and advisers
Stamp taxes for agents and advisers
Partnerships and trusts for agents and advisers

