In the UK tax is somewhat disconnected from payroll. So that e.g. a second job would attract a different tax code. Different tax codes are applied for many, m

In the UK tax is somewhat disconnected from payroll. So that e.g. a second job would attract a different tax code. Different tax codes are applied for many, many different reasons though. I'm still a company director, although the company doesn't trade any longer, so I'm required to self-assess and pay my tax yearly. My tax code through my employer is slightly different as a result. If my tax code were ever pulled up as an issue by my employer my answer would be the above, coupled with 'mind your own business', because it is my business and not theirs. NI payments can be deferred to the higher rate (2%) on a second job to prevent overpayments. I know this from when I (legitimately, and with the full knowledge of both employers) had two jobs.