how long does the state of Illinois have to collect income taxes before the statue of limitations is up

Question

how long does the state of Illinois have to collect income taxes before the statue of limitations is up

Answer

They have up to 20 years to collect income tax, depending on when taxes are assessed, and when liens were filed, etc. In the case of fraud or failure to file returns, there is no limit on collections.

Answer

In Illinois, tax returns are considered "assessed" when they are filed. Measure twenty years from that date.