Every California voter is mailed a ballot. Here is what happens to it
California automatically mails ballots to every registered voter and offers multiple ways to return them—from secure drop boxes to mailing envelopes.
California conducts elections almost entirely by mail. County elections officials automatically mail ballots to every active registered voter about a month before Election Day, eliminating the need to request an absentee ballot or wait in a polling place line. Once ballots arrive, voters choose from four methods to return them: by mail, at a secure drop box, in person at various locations, or through an authorized representative. The system is designed to give voters flexibility while the state counts ballots over several weeks.
For anyone new to California voting, understanding the deadlines and return options is critical. Miss the mail deadline and your ballot may not arrive in time. Miss the drop box deadline and you'll need to vote in person or by mail. The system offers a window to vote that stretches weeks beyond Election Day itself, but each pathway has specific cutoffs.
How automatic mail-in voting began
California voters first received ballots by mail automatically in 2020 as a pandemic safety measure, and the practice significantly increased voter participation. Starting with counties that voluntarily adopted the system under the 2016 Voter's Choice Act, the state expanded automatic mail-in voting during the 2020 general election and continued it through 2021. The results impressed state leaders: Secretary of State Dr. Shirley Weber noted that "Vote-by-mail has significantly increased participation of eligible voters."
Governor Gavin Newsom signed Assembly Bill 37 in September 2021, making California the eighth state to require county election officials to mail every registered, active voter a ballot permanently. The law removed the need for voters to request absentee ballots; instead, every eligible voter receives one automatically. The change expanded the system to reach an estimated 2.3 million additional registered voters who had not previously opted to vote by mail, at an additional state cost of approximately $4 million for printing and mailing.
The automatic ballot
All California registered voters receive a ballot through the mail automatically. The state has no requirement that voters request an absentee ballot or provide an excuse for voting by mail. According to the California Secretary of State, ballots are "automatically sent to their voting residence address." Voters do not need to take any action to receive a ballot; it arrives if their voter registration is active at their address.
If a voter's address changes or they move, updating voter registration before Election Day ensures the new address receives a ballot. Voters can register to vote online through the California Secretary of State website up until Election Day. Voters who miss the regular registration deadline have another option: in most elections, voters may visit their county elections office, a vote center, or a satellite office during the 14 days before Election Day through Election Day itself to conditionally register to vote and cast a provisional ballot. About 91.7 percent of provisional ballots cast are ultimately counted after county elections officials process and verify the voter's registration information.
Four ways to return your ballot
Once voters complete their ballots, they have four options for return. Each method has different deadlines and rules.
Mailed ballots must be postmarked on or before Election Day. The California Secretary of State specifies that ballots must arrive "not later than 7 days after Election Day." To ensure a ballot is postmarked in time, the Secretary of State recommends mailing ballots "at least five days before Election Day." Voters should not wait until Election Day to mail their ballots, as postal delays can mean ballots arrive after the deadline and are not counted.
Voters can deliver completed ballots to secure drop boxes operated by county election officials. Early voting at drop boxes begins 29 days before Election Day and continues through 8 p.m. on Election Day. Drop boxes are available "any time, day or night" and are locked structures monitored for security. The exact location of drop boxes varies by county, but the Secretary of State's website lists drop box locations for each county.
Completed ballots can be dropped off in person at drop boxes, polling places, vote centers, or the county elections office. All in-person returns must be completed by 8 p.m. on Election Day. Some counties maintain vote centers open during the early voting period, though hours and locations vary by county.
Any voter may authorize someone else to return their completed ballot on their behalf. The authorized person must deliver the ballot in person by the 8 p.m. Election Day deadline. The voter remains responsible for completing and submitting their own ballot; the representative simply handles the physical delivery of the sealed envelope.
Security measures and signature verification
California ballot envelopes include multiple security features designed to prevent fraud. According to San Diego County's Registrar of Voters, ballots are printed by certified vendors and include "election specific tint and watermark." Once voters return their ballots, mail is processed through industrial sorters that "date and time stamp the ballot return envelope" and scan barcodes against voter registration databases. This system ensures that each ballot can be tracked and that voters cannot vote twice in the same election.
Signature verification serves as a critical security checkpoint. Registrar staff compare the signature on the returned ballot envelope to "the signature on file for the voter from their voter registration record." Exact matches are not required; workers check similarities in letter slant and other characteristics. The envelope is simultaneously checked "against the statewide voter database to ensure the voter has not voted anywhere else in California." If a signature does not match or is missing, the Registrar sends the voter a letter and form to sign and affirm their identity. Once the voter responds, staff re-verify the signature before the ballot is counted.
To maintain ballot secrecy, returned ballots are extracted from envelopes in a separate process. The voter's name and identifying information remain on the envelope, but once the ballot is removed, it is completely anonymous before being tallied. Returned ballots are stored in "secured, locked areas with security camera coverage," and two staff members must accompany ballots during transfers from vote centers to the Registrar's office.
“To ensure a mailed ballot counts, voters should mail it at least five days before Election Day, though the postmark deadline is Election Day itself.”
Tracking your ballot
California voters can monitor their ballot's status through the Secretary of State's "Where's My Ballot?" system at WheresMyBallot.sos.ca.gov. Voters can register for notifications by email, text message, or voice call. The system sends alerts when a ballot is mailed from the county, when it is received by the county, and when it is processed and counted. This allows voters to confirm their ballot was delivered and counted, or to take action if there are problems.
Early voting and Election Day
Early voting begins 29 days before Election Day. Voters can cast ballots by mail throughout this period, making it possible to vote weeks in advance. For those preferring in-person voting, early voting locations open at county offices and designated vote centers. Hours and locations vary by county.
The final day to mail a ballot is Election Day itself, but mail delays mean voters should not rely on Election Day mailing. For those voting by mail, the 5-day buffer before Election Day is a practical guideline, not an official deadline. The hard deadline is postmarking by Election Day and delivery within 7 days after. Voters who miss all deadlines can still vote in person at a polling place on Election Day itself.
Counting takes weeks
After Election Day, ballots continue to arrive and be processed. Counties have 28 days after Election Day to count all ballots, including mailed ballots that arrive in the following days. This extended counting period can make final election results uncertain for two to three weeks after voters cast ballots. Mail-in ballots are verified for voter signature, checked for completeness, and then scanned or manually counted depending on the county's equipment. Rejected ballots and provisional ballots require additional verification before they are either counted or discarded.
Ballots may be rejected if the voter's signature does not match the signature on file, if the ballot envelope is not signed or is signed improperly, or if there are other procedural errors. Counties mail notices to voters whose ballots face rejection, giving them an opportunity to "cure" or fix the problem by contacting the county elections office. This cure period typically extends into the counting period after Election Day, allowing voters to respond and have their ballots counted if the signature or other issues can be resolved.
