Hi
@KristieP2018 - I ran into the same issue because I only have a US passport and no credit here in the UK. I rung up HMRC and they couldn't figure out a workaround, so they told me I would just need to print the tax return pages and fill them out manually and send them in via post. A few more steps, but the people on the phone are actually very helpful and they can tell you exactly which forms you need to print. Here's what he told me to do:
Go to
www.gov.ukIn the search bar, type: SA100, and all the different forms should pull up.
For my case, I need to print these foroms:
SA100 - the main tax return form
SA106 - Foreign income (I still have my job in the US, but you would probably need SA102 if you're working here)
SA108 - capital gains summary
SA109 - residence, remittance basis, etc
Just to clarify, I do NOT know what I am doing beyond that, and this is my first year, so definitely give them a call to confirm. That's just what they told me