Government Gateway access for non UK residents

Could you explain how "long time" non UK residents can get authenticated to get on-line access to their NI records etc. It seems that beyond having a valid UK passport and NI number (which may be reasonable) there needs to be a UK photo drivers licence or UK credit reference, which many non UK residents don't have because they left a long time ago. Can they just say they dont have those things? What about foreign biometic passport etc Many thanks

Hi,
In order to use the personal tax account your identity needs to be verified. If you are outside of the UK without official valid documents, you may not be able to verify your identity and cannot use the service.
You’ll need your National Insurance number or UK postcode and up to 2 of the following:

•    a valid UK passport or non-UK passport with a biometric chip
•    a UK photocard driving licence issued by the DVLA (or DVA in Northern Ireland)
•    a UK biometric residence permit or card
•    a payslip from the last 3 months or a P60 from your employer for the last tax year
•    details of a tax credit claim if you made one
•    details from a Self Assessment tax return if you made one
•    information held on your credit record if you have one (such as loans, credit cards or mortgages)

Please contact the National Insurance helpline for any assistance with issues registering for the personal tax account and any queries about your national insurance record.
Number - 0300 200 3500
Overseas - +44 191 203 7010
Open - Monday to Friday: 8am to 6pm Closed on Saturdays, Sundays and Bank Holidays.
Thank you