A working California calendar

California deadlines; without the scavenger hunt.

Election, tax and workplace dates that may change what Californians need to do next; each entry links to the agency record behind it.

Verified September 14, 202616 dates and changesPacific time

Next on the calendar

Sep 15, 2026Federal estimated-tax installment
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Current California deadlines

  1. Tomorrow

    Taxes; Deadline

    Federal estimated-tax installment

    September 15 is the general federal estimated-tax due date for income received from June 1 through August 31. California also lists a third installment date, but its standard schedule assigns 0% to that installment; annualized-income situations can differ.

    What to do: Check the federal amount due and the California 540-ES worksheet that applies to your income pattern.

  2. 10 days

    Elections; Start date

    State and county voter guides begin mailing

    The state and county voter-information-guide mailing period runs from September 24 through October 13.

    What to do: Review the online state guide now; contact the county elections office if expected local material does not arrive.

  3. 21 days

    Elections; Start date

    Ballots begin mailing; early voting begins

    County officials must begin mailing vote-by-mail ballots to active registered voters no later than October 5. Early voting also begins.

    What to do: Verify the mailing address in My Voter Status and check the official early-voting locator for local hours.

  4. 22 days

    Elections; Start date

    Ballot drop-off locations open statewide

    All counties must open vote-by-mail ballot drop-off locations by October 6; the locations remain available through Election Day.

    What to do: Use the official early-voting locator or county elections office to confirm a current location and schedule.

  5. 31 days

    Taxes; Deadline

    2025 individual income-tax returns on extension

    October 15 is the ordinary filing deadline for California individual returns under the state’s automatic extension and for federal individual returns with a timely extension. The ordinary payment deadline remained April 15.

    What to do: File the applicable return, retain acceptance records and confirm whether a disaster, military or overseas rule changes the date.

  6. 35 days

    Elections; Deadline

    Standard voter-registration deadline

    October 19 is the last day to register online or have a paper registration application postmarked for the November 3 general election.

    What to do: Register or confirm the record through the Secretary of State; conditional registration remains available after this date.

  7. 36 days

    Elections; Start date

    Conditional voter registration begins

    Eligible voters who miss the standard deadline can conditionally register and cast a provisional ballot from October 20 through Election Day.

    What to do: Confirm the participating county office, polling location or vote center before traveling.

  8. 40 days

    Elections; Start date

    First Voter’s Choice Act vote centers open

    The first vote centers open in participating Voter’s Choice Act counties on October 24; other early-voting schedules vary by county.

    What to do: Use the official locator to verify whether the county participates and which centers are open.

  9. 43 days

    Elections; Recommended date

    Replacement vote-by-mail ballot request

    October 27 is the state’s recommended date to submit a replacement-ballot application. It is guidance, not a final cutoff for every later ballot problem.

    What to do: Contact the county elections office immediately if a ballot is missing, lost or destroyed.

  10. 50 days

    Elections; Deadline

    California General Election Day

    Polls are open from 7 a.m. to 8 p.m. Vote-by-mail ballots must be postmarked on or before November 3; personally returned ballots must arrive by 8 p.m.

    What to do: If mailing on Election Day, obtain a hand-stamped postmark from a postal employee inside a U.S. Post Office.

  11. 57 days

    Elections; Deadline

    Mailed ballot receipt deadline

    A mailed vote-by-mail ballot postmarked on or before Election Day must reach the county elections office no later than November 10.

    What to do: Use Where’s My Ballot or the county ballot-status system to confirm receipt and acceptance.

  12. 72 days

    Elections; Deadline

    Ballot signature-cure statements due

    A completed statement addressing a missing or noncomparable vote-by-mail envelope signature must reach the county elections office by 5 p.m. on November 25.

    What to do: Follow the instructions for the county that holds the voter record; county procedures can differ.

  13. 80 days

    Elections; Deadline

    County election results certification

    December 3 is the last day for county elections officials to certify their general-election results.

    What to do: Treat election-night and canvass-period totals as unofficial until the applicable certification is complete.

  14. 88 days

    Elections; Deadline

    California Statement of Vote certification

    The Secretary of State’s certified Statement of Vote and certificates of election are scheduled for December 11.

    What to do: Use the certified state record for final statewide results.

  15. 109 days

    Workplace; Change

    California minimum wage becomes $17.40

    The statewide minimum wage rises to $17.40 an hour. The associated minimum salary threshold for many overtime exemptions becomes $72,384; duties tests and other requirements still apply.

    What to do: Check the work location, industry, pay rate and applicable local rule; some local or industry rates are higher.

  16. 123 days

    Taxes; Deadline

    Fourth estimated-tax installment

    January 15 is the general fourth-installment date for 2026 federal estimated tax and the California schedule’s fourth payment. Filing early can change the federal or state January-payment requirement in qualifying cases.

    What to do: Use the applicable federal and California worksheets; confirm any early-filing, farming, fishing or fiscal-year exception.

Dates can change for specific taxpayers, counties and individual circumstances; use the linked agency record before acting.

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How to use this page

A reminder is not the final authority.

This page translates statewide source material into a practical sequence. It does not replace county instructions, individual tax advice, workplace-specific rules or a notice issued directly to you.

The Journal distinguishes firm deadlines, start dates, recommended dates and scheduled changes. When circumstances vary, the entry says so and sends readers to the responsible agency.

Primary record

Sources and references

  1. IRS: Publication 505 for 2026
  2. California FTB: Estimated tax payments
  3. California Secretary of State: Key Dates and Deadlines
  4. California Secretary of State: General Election
  5. California FTB: Personal due dates
  6. IRS: 2025 return e-file due dates
  7. California Secretary of State: Election Dates and Resources
  8. California Secretary of State: Verify My Signature
  9. California DIR: 2027 minimum wage announcement
  10. California FTB: 2026 Form 540-ES instructions

Need the people on the statewide ballot? Open the 2026 candidate guide

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