UK Contractor working remotely on Republic of Ireland contract

[LIAM 1]

I am currently working as a contractor with my own limited company. I am based in the north of Ireland (UK) and my current contract is here. However it is likely that my next contract will be in the Republic of Ireland. However the work will be carried out remotely from the north of Ireland (UK), apart from a day every week or two when I need to be onsite.

I was hoping to just bill the client as I would a UK client and carry on paying UK Tax, NI, Corporation Tax etc.

Anyone in a similar position had any issues with this?

[Lance]

should be fine as NI is still in the single market.
Chances are that the client will want to pay in Euros. And you will have some VAT considerations (quite what Brexit will have done to VAT between NI and the EU I don't know).

I am assuming you have a Belfast registered LTD.