Born in the U.S raised in the U.K
I was born in the U.S. to a British mother and an American father. When I was around six months old, my mother left my father and brought me back to the UK. Since then (mid-1980s) I have lived permanently in the UK. I have a National Insurance number, have always paid UK taxes, and have a mortgage and all the usual ties to the UK.
When I was a teenager, I went on a school trip to Amsterdam. On returning to the UK, border control flagged my American passport. I was taken into a side room and questioned. The officers were actually very friendly and, at the end of the conversation, one of the immigration officers stamped my passport with Indefinite Leave to Remain. Since then, I have never had any issues travelling or starting new jobs in the UK.
More recently, I opened an ISA through Trading 212. I declared my nationality as American, and they have now requested additional information:
- If you live outside the US
- If you are a US Person
- If you are not a US Person
They are requesting either:
- Proof of residency outside the US (issued within the last 3 months)
- A completed W-9 form including a US Tax Identification Number or Social Security Number (SSN)
- Evidence confirming non-US status, such as a Certificate of Loss of Nationality
I do not have any of these documents. I have never had any dealings with the U.S. IRS or other U.S. government bodies and, as far as I know, I do not have a Social Security number.
I would appreciate some guidance on what my next steps should be.