Northland's smallest territorial authority will transfer the bulk of its loan with two commercial banks to the Local Government Funding Agency in a bid to reduce costs.
Kaipara District Council decided on the move after its application to join the Local Government Funding Agency (LGFA) - set up in 2011 and owned by the government and 30 councils throughout the country - was accepted.
The Kaipara council is now able to borrow from the agency at lower and more competitive rates.
Council chairman of commissioners John Robertson said more than half the $74 million debt would be shifted to the agency, resulting in substantial savings for ratepayers.
Mr Robertson said most of the $74 million debt included $58 million borrowed by the last elected council to fund the Mangawhai sewerage scheme.