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TaxSlayer Pro Online: Illinois Reject Code -9999 (RESUBMIT)

19 Feb 19
Craig Smith
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Update – The latest IL schema was updated in the software before IL was ready to begin accepting the new schema electronically. As of 2/19, these IL returns with Reject Code -9999 can be resubmitted.


We have received several support contacts regarding Illinois Reject Code -9999 regarding an Invalid State Schema shown below.  We have opened Issue 2841 to work with IL to determine what may be causing this particular IL reject. If you have any IL returns rejected for this reason, please hold those returns until we provide an update on this post.

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