Illinois Form St-1 - Web this form is authorized as outlined under the tax or fee act imposing the tax or fee for which this form is filed. Did you know you may be able. Web illinois department of revenue. 2) how taxpayers should report. _____ schedule a — deductions section 1: Web the dor provides answers to questions, including: _____ this form is for: Web effective january 1, 2021, remote retailers, as defined in section 1 of the retailers' occupation tax act (35 ilcs.
Web the dor provides answers to questions, including: _____ schedule a — deductions section 1: Web effective january 1, 2021, remote retailers, as defined in section 1 of the retailers' occupation tax act (35 ilcs. _____ this form is for: 2) how taxpayers should report. Did you know you may be able. 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 illinois department of revenue.