What number do I call if I have a question regarding Illinois Sales tax and login issues?
Sales TaxYou can reach the Department of Sales and Use Taxes here:
- Call us at: 1 800 732-8866 or 1 217 782-3336
- Call TDD: 1 800 544-5304
- Mail your ST-1 forms to: ILLINOIS DEPARTMENT OF REVENUE
RETAILERS OCCUPATION TAX
SPRINGFIELD IL 62796-0001 - Mail your ST-1-X forms to: ILLINOIS DEPARTMENT OF REVENUE
PO BOX 19034
SPRINGFIELD IL 62794-9034
Website: https://mytax.illinois.gov/_/