Hi Steve Thaxter,
The online guidance for completion of the new CF83 and the NI38 will be updated, unfortunately I can not provide you with a timescale for these updates.
With regards to question 28, I would advise you/your clients to enclose a covering letter with the application providing details of all other employments/self-employment abroad i.e. exact dates and names and addresses of employers.
We no longer ask the applicant which rate they are applying to pay, we use the information provided on the application to determine the class of voluntary National Insurance contributions they are eligible to pay.
Your clients can complete form 64-8 to authorise you to be their agent -
Authorise a tax agent (64-8)
Thank you.