With the new deemed domicile tax regime coming into effect this week, I have had many conversations with concerned non-dom clients about the effect the new rules may have on the UK's financial sector, particularly as we move towards Brexit.  

While many UK resident non-doms who are well established in the UK may decide to stay on regardless of the increased tax cost, the double hit of tax increases and Brexit may impact the City's continued appeal to international talent.  What might that cost be?