How do I get taken off of the emergency tax code
So I recently moved from the Republic of Ireland to Northern Ireland for a job. When I started I didn't have a national insurance number, just an Irish passport.
I got a national insurance number that same week and submitted it to my employer. A few weeks have passed and I'm still paying emergency tax. I've discussed it with my colleagues and I'm paying more tax than them despite working the same hours.
I realise I don't have a P45 from my previous employer as it's my first job in the UK and I don't recall filling out a new starter form. Does anyone know how I can resolve this situation/get a refund for the tax I've overpaid?