4EUFAM visa

I have a question, if I receive a 4EUFAM, will that allow me to live and work in Northern Ireland as long as my wife is doing the same? Or can I only work in the Republic of Ireland?

Thanks for your help.

What's your situation?  You want to live/work in NI, but your wife is an Irish citizen living in NI?

Yes that's it

If you will be living in Northern Ireland and not the Republic of Ireland, then you won't be able to apply for a 4EUFAM visa - because that visa is only for people who live in the Republic of Ireland.

If your wife is an Irish citizen living in Northern Ireland, then you would need to apply for a UK visa, not an Irish visa, in order to live and work in Northern Ireland.

If she is an Irish citizen only and does not hold a UK passport, then you should be able to apply for an EEA Family Permit to live and work in Northern Ireland with your wife. The permit is free of charge and is valid for 6 months, but it only allows you to live in Northern Ireland (or the rest of the UK). If you wished to live and work in the Republic of Ireland (but not Northern Ireland), you would need to apply for the 4EUFAM from Irish immigration.

You would use the EEA family permit to enter Northern Ireland as the spouse of an EEA citizen, and then once you have moved, you will need to apply for a 5-year EEA Residence card (also free of charge) to show you have permission to live there for 5 years.

See here for more information: http://www.ukba.homeoffice.gov.uk/eucitizens/eea-family-permit/

And what if she holds both up and Irish passport?

And what if she holds both up and Irish passport?

Has she spent most of her life in Ireland or in the UK?

Uk

If she's always lived in the UK, then you can't use the EEA route.  You'll have to apply for a UK spousal visa. 

http://www.ukba.homeoffice.gov.uk/visas-immigration/partners-families/citizens-settled/spouse-cp/

Which requires having a great paying job, or a very large bank account correct?