Colorado DOR Adopts Rule Mandating Electronic Filing of Aviation Fuel Sales Tax Returns

March 16, 2026, 2:05 PM UTC

The Colorado Department of Revenue (DOR) adopted a rule mandating electronic filing of aviation fuel sales tax returns. The rule establishes a phased approach for electronic filing requirements based on the volume of aviation jet fuel sold or used. [Colo. Dep’t of Revenue, Reg. Section 39-21-119.5 - 3, 02/27/26 Colo. Reg.]

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