SB1829 amends the Illinois Income Tax Act to create a new Illinois income tax deduction for amounts that a taxpayer could not deduct on the federal return because of the federal $10,000 cap on state and local tax (SALT) deductions. In practical terms, the bill would let Illinois taxpayers subtract from Illinois base income the portion of state and local taxes that were disallowed federally under the Internal Revenue Code limitation. The bill is framed as an immediate effective-date measure.
The bill inserts this SALT-related deduction into Section 203 of the Illinois Income Tax Act, which defines base income for individuals, corporations, trusts, estates, and partnerships. The new deduction appears as a subtraction modification for individual taxpayers and is mirrored in the structure of the Act so that the state tax base is adjusted consistently with other Illinois additions and subtractions. Because it amends the income tax base, it would reduce Illinois taxable income for affected taxpayers who itemize or otherwise have state and local tax amounts disallowed on their federal returns.
Impact
SB1829 would lower Illinois income tax liability for taxpayers whose federal itemized deductions are limited by the SALT cap, shifting some of that disallowed amount into a state-level deduction. The bill would amend 35 ILCS 5/203 of the Illinois Income Tax Act and affect the calculation of base income for individuals and, through conforming language in the section, the broader income tax framework. The primary affected parties would be Illinois residents and other taxpayers subject to Illinois income tax who pay significant property, income, or sales taxes and are impacted by the federal limitation.
Sentiment
No committee transcripts or recorded votes were provided, so there is no direct evidence of debate or formal support/opposition in the available materials. Based on the bill text, the measure appears taxpayer-relief oriented and likely intended to offset the federal SALT deduction cap for Illinois filers. The absence of voting history or discussion means the overall legislative sentiment cannot be measured from the supplied record.
Contention
The main policy issue is fiscal and distributive: supporters would likely view the deduction as relief for taxpayers harmed by the federal SALT cap, while opponents may question the revenue loss to the state and whether the benefit would disproportionately flow to higher-income taxpayers who itemize and pay larger state and local tax bills. Because the bill creates a new subtraction from Illinois base income, the likely point of contention is the tradeoff between taxpayer relief and reduced state revenue. No specific stakeholder objections or amendments are available in the provided record.