IC 6-6-1.6-3 — Calculation of annual index factors
Chapter 1.6. Fuel Tax Index Factors
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Section text
Sec. 3. (a) The department shall calculate an annual index factor to be used for the rate to take effect each July 1 beginning in 2018 through July 1, 2027. The department shall determine the index factor before June 1 of each year using the method described in subsection (b). (b) The annual gasoline tax index factor and special fuel index factor equals the following: STEP ONE: Divide the annual CPI-U for the year preceding the determination year by the annual CPI-U for the year immediately preceding that year. STEP TWO: Divide the annual IPI for the year preceding the determination year by the annual IPI for the year immediately preceding that year. STEP THREE: Add: (A) the STEP ONE result; and (B) the STEP TWO result. STEP FOUR: Divide the STEP THREE result by two (2). (c) If the CPI-U or IPI for a preceding year is revised, corrected, or updated after May 31 of that year, the department shall use the CPI-U or IPI as published for the preceding year prior to revision.
As added by P.L.218-2017, SEC.37. Amended by P.L.185-2018, SEC.3; P.L.159-2021, SEC.31; P.L.201-2023, SEC.107.
Source: official publisher (2026 edition)