You'll need to apply through the childcare service (external link) to confirm your eligibility and receive an code.
As part of this process you will need to confirm your identity. This information will help HMRC decide whether you and your child are eligible for 30 hours.
You will need to create a Government Gateway account if you have not already done so. To do this you will need your National Insurance number, access to telephone or mobile and details of one or more of the following - your UK Passport, tax credits, P60 or a recent pay slip.
The childcare service website will guide you through the process. If you encounter any problems contact HMRC on 0300 123 4097.Page 4 of 8