Please process all remaining declarations before March 1, 2017, as the Fill-in Form Program will no longer be available after that date. If the county in which you are filing the property tax sales transaction is participating in the MyDec program, you can prepare Form PTAX-203 online through MyDec. To learn more about MyDec, visit https://mytax.illinois.gov/MyDec/. Review Government Agencies to see a list of counties and cities (including the City of Chicago) currently using the system. 

For assistance with the MyDec website please call 800-445-1114 or send an email. Thank you.