How to vote in Illinois in 2026
Every deadline, rule, and official link — kept simple. When you're ready, build a personal plan with calendar reminders in about a minute.
Key dates
- State Primary
- Tuesday, March 17, 2026
- General Election
- Tuesday, November 3, 2026
- Register online by
- Sunday, October 18, 2026
- Register by mail by
- Tuesday, October 6, 2026(postmarked)
- Register in person by
- Tuesday, November 3, 2026
- Request a mail ballot by
- Thursday, October 29, 2026
Deadlines shown are for the November 3, 2026 general election.
Register to vote
Online: Received 16 days before Election Day. By mail: Postmarked 28 days before Election Day. In person: Received 28 days before Election Day. Same-day registration available. Grace-period registration and voting available through Election Day at designated locations.
Online — the fastest way
A few minutes on the official site.
By mail
Print, sign, and mail the National Mail Voter Registration Form.
In person
At your local election office — or same-day at the polls.
Already registered? Double-check.
Vote by mail
Any registered voter can vote by mail in Illinois. Received 5 days before Election Day
Returning it: Postmarked by Election Day and received by 14 days after Election Day.
Vote in person
Vote early where available (dates vary by county), or at your polling place on Election Day — Tuesday, November 3, 2026.
Quick answers
Can I register to vote online in Illinois?
Yes — Illinois has official online registration (deadline: Sunday, October 18, 2026 for the general election). It usually takes a few minutes.
Do I need an excuse to vote by mail?
No — any registered voter in Illinois can request a mail ballot, no excuse needed.
Can I register on Election Day?
Yes — Illinois offers same-day registration. Online: Received 16 days before Election Day. By mail: Postmarked 28 days before Election Day. In person: Received 28 days before Election Day. Same-day registration available. Grace-period registration and voting available through Election Day at designated locations.
When are the 2026 elections?
State Primary: Tuesday, March 17, 2026 · General Election: Tuesday, November 3, 2026
Turn this into your plan
Three questions, then every Illinois deadline lands on your calendar with reminders.
Make your voting planCompiled from official state sources, vote.gov, and Ballotpedia (2026 calendars). Rules occasionally change — when it matters, confirm with the Illinois election office. Found an error? Tell us.