Motor Carrier Services

Motor Carrier Licensing

IFTA Tax Filing Online Service

Welcome to the IFTA Tax Filing Online Service. At this website, Arizona-based IFTA carriers can electronically file required quarterly IFTA Tax Filing Reports with the state of Arizona.

Important Notice: The State of Arizona Legislation implemented an update with Senate Bill (SB1200).

Effective August 3rd, 2018, SB1200 changes the IFTA Interest and Penalty calculation to be assessed per IFTA Articles of Agreement Assessment and Collection.

*R1220 PENALTIES .100 The base jurisdiction may assess the licensee a penalty of $50.00 or 10 percent of delinquent taxes, whichever is greater, for failing to file a tax return, filing a late tax return, underpaying taxes due.

*R1230 INTEREST .100 For a fleet based in a U.S. jurisdiction, interest shall be set at an annual rate of two (2) percentage points above the underpayment rate established under Section 6621(a)(2) of the Internal Revenue Code, adjusted on an annual basis on January 1 of each year. Interest shall accrue monthly at 1/12 this annual rate. The Repository shall notify Jurisdictions of the new rate by December 1.

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