Illinois St-1 Form Printable - Web effective january 1, 2021, remote retailers, as defined in section 1 of the retailers' occupation tax act (35 ilcs. Web this form is authorized as outlined under the tax or fee act imposing the tax or fee for which this form is filed.
Web this form is authorized as outlined under the tax or fee act imposing the tax or fee for which this form is filed. Web effective january 1, 2021, remote retailers, as defined in section 1 of the retailers' occupation tax act (35 ilcs.