Apply as early as possible to make sure you receive your ballot in time to vote. Your ballot must be postmarked no later than the day before Election Day and received at the Cook County Clerk's office within 14 days after Election Day.
If you apply using a paper form, the Clerk's office will verify your eligibility and compare the signature on your application against the signature on your voter registration record before issuing a ballot. If you apply online, the system verifies your eligibility with the data you provide. Regardless of how you apply, the signature on your ballot will be compared against the signature in your voter file before your ballot is counted.