IL HB3902

Prohibits registered tax purchasers from making campaign contributions to candidates for county treasurer in the county where the tax purchaser is registered, and prohibits county treasurer candidates from knowingly accepting such contributions.

Requires tax purchasers in all counties with fewer than 3,000,000 inhabitants to register with the county collector at least 10 business days prior to tax sales, removing the previous exception allowing counties to opt out of registration requirements.

Requires counties that do not currently impose registration requirements to implement them beginning with the first tax sale occurring at least 12 months after the bill's effective date.

Preempts home rule units from conducting tax sales in a manner inconsistent with the registration requirements, establishing this section as a limitation on concurrent exercise of home rule powers.

Takes effect immediately upon becoming law.