Key Dates:

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• December 17, 2025: First Day to Request a Vote by Mail Ballot

• February 5, 2026: First Day of Early Voting at Will County Clerk's Office and Vote by Mail Ballots are Mailed

• March 1, 2026: Last Day to Register to Vote by Online Application

• March 2, 2026: First Day of Expanded Early Voting

• March 12, 2026: Last Day to Request a Vote by Mail Ballot, Including Military and Overseas Voters

• March 16, 2026: Last Day of Early Voting

• March 17, 2026: Republican Primary Election Day,  Last Day Vote by Mail Ballots can be Postmarked