MyDec Helpful Resources
MyDec at MyTax Illinois - used by individuals, title companies, and settlement agencies to submit, approve, or reject Real Property Transfer Tax Declarations.
MyDec allows you to electronically submit:
- State of Illinois Forms PTAX-203, 203-A, and 203-B
- City of Chicago Form 7551 – Real Property Transfer Tax Declaration
- Real Property Transfer Tax Declarations for participating counties.
To get started, visit the MyDec at MyTax Illinois webpage or select the applicable procedure manual below.
IDOR-PT1, MyDec Preparer Access Procedures - This procedure manual provides detailed steps and screenshots for the Preparers work in MyDec, including those for accessing MyDec, navigating MyDec, and entering PTAX-203s.
Assessor Procedure Manuals
IDOR-PT2, MyDec County Assessor Access Procedures - This procedure manual provides detailed steps and screenshots for the County Assessors work in MyDec, including those for accessing MyDec, navigating MyDec, and entering PTAX-203s.
County Recorder Manuals
IDOR-PT3-Rpt, MyDec County Recorder Access Procedures - Reporting Only