US citizen living in the UK working remotely for a US company - tax situation?

Hi there,

A bit of a complicated question to do with US/UK remote working and tax.

I’m a US citizen with a two-year UK graduate visa (commenced April 2022).

I’m splitting my time between my family home in the US, and my flat in the UK. I would say around a 65% of my time is in the UK, 35% the US.

A few months ago, I started working for a US company remotely, based from my US address. I carry out my work with them when I’m in the US and when I'm the UK. On the side, I do a little bit of ad-hoc creative work in the UK (a couple hundred pounds a month max). I have a UK National Insurance number.

Based on all of that info, where should I be paying tax? Any advice would be hugely helpful, as I am at a complete loss.

Also, if anyone could recommend a good tax expert / lawyer / accountant who specializes in this kind of situation, I would really appreciate it!

Many thanks,

Paul