NO
Stop Measure B Contra Costa County

Measure B means a higher sales tax for Contra Costa.

This site highlights public facts voters can review now. Measure B would raise the county sales tax by five-eighths of a cent for five years, with the tax collected for general county purposes.

See the Facts Volunteer

Public facts voters should know

These points are based on public documents and published reporting. They focus on tax rates, timing, and the county's own rollout of Measure B.

1

Measure B adds five-eighths of a cent countywide

Measure B would increase the county sales tax by 0.625%. Based on current California Department of Tax and Fee Administration rates, that would push the total sales tax to 10.875% in the county's highest-tax cities.

2

Another countywide sales tax may be coming in November

State law already authorizes a regional transit tax measure for the November 2026 ballot, and planning documents describe a 0.5% increase for Contra Costa County if that measure goes forward.

3

Supervisors proceeded after the projected loss number was revised down

On March 3, published coverage reported that supervisors were told the projected federal-and-state funding loss estimate should be revised downward, yet the board still voted to place Measure B on the ballot that day.

Why it matters

Even before any fall measures, Measure B would make purchases more expensive across Contra Costa County and would apply to everyday taxable goods.

What is publicly on the table now

  • Measure B is a general sales tax, so the revenue goes to the county general fund.
  • The county's own ballot language says the tax would run for five years.
  • The county estimated the measure would raise about $150 million annually.
  • If approved, the earliest collection date listed in county legislative materials is October 1, 2026.

More information coming soon

Additional information about Measure B will be posted here soon. Please check back after March 19 for more details about the campaign and ways to stay informed.

  • Review public information about the measure.
  • Share this page with neighbors interested in learning more.
  • Sign up below if you would like to help the campaign.

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