The official however did not say over what exact period the increase occurred.
Abdulrahman told the Kurdistan Democratic Party’s (KDP) official media outlet that the windfall is the result of growing trade activity and better enforcement of customs duties collection.
Customs duties constituted the second largest source of income for the Kurdistan Regional Government (KRG) after oil sales, he said.
The official added that the directorate plans to place video surveillance systems at all crossings to better track movement at the border.
Opposition politicians have called on the KRG to use the increased money it is collecting to end public sector salary cuts.
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