California Secretary of State Shirley N. Weber, Ph.D., said Monday, Oct. 19, 2026, is the last day to register online to vote in the Nov. 3, 2026, General Election. Eligible Californians can still register to vote or update their voter registration online through midnight tonight.
That deadline matters because people who wait until the last minute can still use registertovote.ca.gov on a laptop, tablet or smartphone, and voters who are not sure whether they are already registered can check their status online before the night is over. Weber said online voter registration is quick and convenient through the site, and that the process is mobile-friendly for people filing from almost anywhere.
For anyone searching for how to register to vote in California today, the key point is simple: midnight on Monday, Oct. 19, 2026, is the cutoff for online registration ahead of the Nov. 3, 2026, General Election. After that, eligible voters still have a path to the ballot, but it moves offline and into Same Day or Conditional voter registration.
That fallback is available at a county elections office or at any in-person voting location through election day. People using it will be asked to fill out a voter registration form, and they will be given a ballot that is counted only after the county elections office completes the voter registration verification process. So the online deadline closes one door, but it does not end registration for eligible Californians who miss it.
The practical difference is time. Online registration ends tonight, but in-person registration remains open through election day, giving voters who have not acted yet one more way to get into the system. For Weber, the message is less about a warning than a reminder: if you want the fastest route, use registertovote.ca.gov now; if you miss it, go in person and finish the process there.

