Around 44 people have been offered voluntary exits from the Inland Revenue offices on Duncreggan Road, the Journal can reveal.
A number of staff were told this morning that voluntary redundancy was being put on the table.
Staff recently took part in a series of industrial actions against job cuts.
In a statement a spokesperson from the Inland Revenue said: “An increasing number of customers are choosing to do business with us through our on-line services. This change has seen the nature of our work shift away from the mass processing work 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, so we are offering targeted voluntary exits to 44 staff in Londonderry.”