Signature requirements for ballot measures in Illinois

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This page details signature requirements for statewide ballot measures in Illinois.
List of measures

The signature requirement for constitutional amendments is 8% of the total votes cast for Governor in the last election.

Year Amendment
2014 298,399
2012 298,399
2010 278,934
2008 279,039

DocumentIcon.jpg See law: Illinois Constitution, Article XIV, Section 3

Basis for calculation

  • 3,729,989 votes were cast for governor in the 2010 election.[1]

Signature deadlines

Under Illinois law, the deadline to submit a citizen initiated constitutional amendments is six months before the general election.[2]


The filing deadline to file a statewide petition and constitutional amendments for the Illinois ballot is May 5, 2014.[3]


The 2012 deadline to submit a constitutional amendment to the Illinois ballot was May 7, 2012.[2]

See also


External links