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Scam Alert: Fake Texts and Websites Impersonating IDOR

Be alert for fraudulent messages or websites attempting to steal your banking information, login credentials, or credit card details. The Illinois Department of Revenue (IDOR) will never request personal or financial information via text message. To confirm official communications or contact details, always visit https://tax.illinois.gov.

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. These rates are set by IFTA, Inc. For more information, see the IFTA website at iftach.org.

Period
 IRS Underpayment Rate
IFTA Annual Interest Rate
01/01/2025 - 12/31/2025 7% 9%
01/01/2024 - 12/31/2024 8% 10%
​01/01/2023 - 12/31/2023 6% 8%
​01/01/2022 - 12/31/2022 ​3% ​5%
​01/01/2021 - 12/31/2021
3%​ 5%​
01/01/2020 - 12/31/2020
5%​ 7%​
01/01/2019 - 12/31/2019 5% 7%
01/01/2018 - 12/31/2018 4% 6%
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%