On 3 August, 2017, The CNB Bank Board decided on an increase of the bi-weekly repo rate from 0,05% to 0,25%. It is the first change of interest rates made since November, 2012, and it also brings about an increase of the legal overdue payment interest rate starting from 1 January, 2018.
It means that any overdue tax payment is to be charged by the financial authorities by an overdue interest rate of 14,25% p.a. (as opposed to the current 14,05% p.a.)