I have been living abroad (New York) for a few years, married and working here. And each year I complete the UK tax return and file the abbreviated accounts for a Ltd. company I have there.

The paperwork is starting to make me drown because I also have the stuff to file in the US (including another small business).

I'm wondering if anyone can help me understand about pensions/NI contributions and tax implications as I'm planning on closing the business but am not sure if I have to continue the yearly self assessment and the weekly NI contributions I've been making (or if I'm even allowed to continue those - I think they're 2.50/week).

Also do I have to report my US income in the UK?
Do I register as a non-resident?

Many thanks for any help in starting to understand all this.