IFTA Annual Interest Rates

Effective July 1, 2013, the IFTA Articles of Agreement require that the annual interest rate for IFTA be set 2 percentage points above the IRS underpayment rate. The adjustment will occur on January 1 of each year. IFTA interest accrues monthly at the rate of 1/12 of the annual rate.

6% IFTA Annual Interest Rate for January 1, 2018 through December 31, 2018

IFTA Annual Interest rates for periods before January 1, 2018 are as follows:

Rate Period
6% January 1, 2017 through December 31, 2017
5% July 1, 2013 through December 31, 2016
12% Prior to July 1, 2013