Illinois Form St 556 - Web the sales discussed in this guide are sales of items that are required to be titled or registered by an agency of illinois state. Effective january 1, 2023, retailers whose annual. Did you know you may be able to file this form online? Filing online is quick and. Web how can i file form st‑556‑lse?
Web the sales discussed in this guide are sales of items that are required to be titled or registered by an agency of illinois state. Effective january 1, 2023, retailers whose annual. Web how can i file form st‑556‑lse? Filing online is quick and. Did you know you may be able to file this form online?