The number of staff eligible to apply for redundancy is 24 in Enniskillen, County Fermanagh; 77 in Londonderry; 134 in Newry, County Down, and 5 in Belfast.
HMRC told the BBC that the redundancies were necessary as more taxpayers (HMRC in fact used the "c" word) choose to do business with them online.
"An increasing number of customers are choosing to do business with us through our online services, which has reduced our need for physical sites.Doubtless those staff with the most experience will be the ones tempted to leave, which of course is not good news for HMRC or the taxpayers.
This change has seen the nature of our work shift away from the mass processing work of the past to the more specialist, but less labour-intensive, roles required in effective policing of the tax system.
As a result some areas of our work do not require as many staff.
We are not closing any offices today."
Tax does have to be taxing.
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