SB 453 is a broad tax and regulatory cleanup bill that makes numerous changes across Indiana’s tax code and related transportation statutes. On the tax side, it revises the definition of gross retail income, adds new liability rules for purchasers who fail to remit gross retail tax or gasoline tax, and updates estimated tax and penalty provisions for individuals, corporations, financial institutions, and electing pass-through entities. It also modernizes and renames references to Indiana’s 529 education savings plan and ABLE savings plan, while preserving and adjusting the associated state income tax credits and repayment rules for nonqualified withdrawals.
The bill also makes targeted changes to excise taxes and licensing rules for tobacco, vapor products, closed system cartridges, and remote sellers, including longer license terms, bonding requirements, age-verification rules, and restrictions on flavored nitrous oxide. In addition, it revises motor carrier and passenger transportation law by changing fees, recordkeeping, certificate and permit procedures, and enforcement provisions, and by redirecting certain fee revenue into the motor carrier regulation fund. Several sections are retroactive or delayed in effective date, with many tax changes taking effect in 2026 and transportation/tobacco provisions taking effect in 2025.
The bill amends a wide range of Indiana Code provisions in Title 6, Title 8, Title 9, and Title 35. It creates new statutory liability for purchasers in certain retail and gasoline transactions when tax is not remitted, adds a new chapter on tax remittance and liability, revises estimated tax payment rules and penalties, and updates the administration of 529 and ABLE-related tax credits. It also changes tobacco and vapor product tax administration, licensing, and enforcement, and modifies motor carrier regulation, including fees, certificates, permits, and fund distributions. State agencies, retailers, distributors, taxpayers, motor carriers, and consumers purchasing taxable goods or services are the primary affected parties.
The voting history suggests the bill was ultimately broadly supported, especially on third reading and conference committee adoption, with near-unanimous or unanimous votes in both chambers at the end of the process. Earlier amendment attempts in both chambers failed, indicating some disagreement over specific provisions, but the final bill moved forward with strong bipartisan approval. Overall, the sentiment appears favorable toward the bill as a comprehensive technical and policy update to tax administration and related regulatory systems.
The main points of contention appear to have centered on amendments rather than the underlying conference committee version, suggesting disputes over how far the bill should go in changing tax liability, exemptions, and enforcement. The failed Senate and House amendments indicate that some members wanted to alter the bill’s scope or details, but the final version retained the broader package. Likely areas of sensitivity include the new purchaser-liability rules for unpaid taxes, the changes to tobacco/vapor licensing and restrictions, and the motor carrier regulatory revisions, all of which affect regulated businesses and consumers.