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IFTA 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. See the tables below for the applicable rates.

 
Period
 IRS Underpayment Rate
IFTA Annual Interest Rate
01/01/2017 - 12/31/2017 4% 6%
01/01/2016 - 12/31/2016 3% 5%
01/01/2015 - 12/31/2015 3% 5%
01/01/2014 - 12/31/2014 3% 5%
07/01/2013 - 12/31/2013 3% 5%