Taxation and NI if working in UK for Hong Kong Employer

Dear Sir, I'm a BNO visa holder. I will relocate to UK this year and my current employer (a Hong Kong company in Hong Kong) would like me to continue the job even I move to UK. My current company has UK presence, while it's totally independent with the HK company, as they are under the same Group but different companies. case 1: If my employer wants me to continue the current employment contract (with Hong Kong company) and pays me salary Hong Kong Dollar in Hong Kong Bank. Can I apply to pay the NI (monthly) and the income tax (monthly / annually) by myself while HK employer does not do anything about UK taxation? Any concern regarding the regulation? Case 2: If my employer informs the UK company and I sign the employment contract with the UK company (salary will be BGP in UK bank), but work for Hong Kong tasks. Can I pay the NI and income tax through PAYE? Any other thing need to concern? Thanks.

Hi,

1. They can continue with this and you will need to report the income by completing a Self Assessment tax return.   
2. If under PAYE, tax and National Insurance will be taken automatically.

Thank you.

Thanks. For case 1, understood I need to report the income through the Self Assessment tax return annually. And, how about the NI? a) when (monthly or annually) and how should I pay the NI (employee) contribution? b) as the HK company (has UK presence) does not do anything for UK taxation, is there any concern for my employment/income without the NI (employer) part?

Hi Cherry Wong,
If reporting as self employment, you also need to register to pay Class 2 National Insurance
Self-employed National Insurance rates
Thank you. 
 

Dear HMRC, Can I ask for some follow-up questions regarding case 1 as below? Do you mean I can keep the current HK employment contact with the HK company (which has UK presence) and working remotely in UK? Except I pay the income tax and NIC employee part class 4, what else I need to pay / settle? And, is there no concern for such case without NIC employer part? Thanks a lot.

Hi Cherry Wong,
Yes you can.
You then need to pay the tax and NI yourself under Self Assessment.
Thank you.