Are S corporations required to make estimated payments?

S corporations are not required to make estimated income tax payments towards their annual tax liability. However, you may make voluntary prepayments of your own tax liability as well as pass-through withholding on behalf of your partners using Form IL-1120-ST-V. See Appendix B in the instructions for Form IL-1120-ST for more information.

If you have additional inquiries, you may submit them to the Questions, Comments, or Request form.