IN SB0243

Conforms Indiana state income tax statutes with federal provisions enacted in Public Law 119-21 (One Big Beautiful Bill Act of 2025), including rounding provisions for cash transactions related to the penny phaseout

Extends the deadline for filing revenue agent report (RAR) adjustments from 180 days to one year from IRS finalization, with a corresponding one-year statute of limitations for assessments and refunds

Authorizes the Department of Revenue to mail documents electronically through its online tax system and allows taxpayers to opt into receiving all department documents electronically

Adds sales tax enforcement provisions for motor vehicles, cargo trailers, aircraft, and watercraft, and amends the aircraft license excise tax

Defines "responsible person" for trust fund tax liability purposes and makes various technical changes to cigarette tax, petroleum severance tax, alcoholic beverage excise tax, pass-through entity tax credits, and the tax amnesty program