IL SB2279

Extends the lookback period from 20 to 23 years for determining whether a person is in default for moneys due when the Department of Revenue considers denying or refusing to renew a certificate of registration, permit, or license

Requires Illinois income tax withholding on sports wagering winnings beginning December 31, 2021, for payments subject to federal withholding requirements under Section 3402(q) of the Internal Revenue Code

Adds sports wagering winnings from the Sports Wagering Act to the list of income items allocable to Illinois for nonresidents, effective for taxable years ending on or after December 31, 2021

Provides an automatic 6-month extension of the statute of limitations for issuing notices of deficiency or tax liability when a taxpayer files a claim for credit or refund within 6 months of the limitations period expiring, applicable across multiple tax acts including income tax, retailers' occupation tax, and various excise taxes

Requires purchasers or transferees to file notice of sale or transfer of business assets with the Department of Revenue at least 10 business days before the sale (changed from after), rather than after the transaction occurs