Bay Area VTA Advances Plan for 2026 Sales Tax Hike, Potentially Pushing Regional Rates Above 10%

SAN JOSE, CA – The Santa Clara Valley Transportation Authority (VTA) board has taken a significant step toward placing a new half-cent sales tax on the 2026 ballot, a move that could generate hundreds of millions in new revenue for the transit agency but also push the total sales tax rate in some Silicon Valley cities past the 10% threshold.

The VTA board of directors, which includes San Jose Mayor Matt Mahan as vice chair, recently voted to opt into Senate Bill 63. This state legislation allows regional transit agencies to pursue voter approval for a sales tax increase. For the VTA, this sets the stage for a potential ballot measure that the agency projects could raise approximately $264 million annually over its proposed 14-year span.

The transit authority is touting the potential spending plan as a necessary measure to address looming multimillion-dollar budget deficits and to fund critical transportation projects. The VTA is heavily reliant on sales tax revenue, which already constitutes a significant portion of its funding. According to agency financial documents, residents in Santa Clara County currently pay a combined 1.75% in sales tax that is allocated to the VTA through a series of measures passed over several decades, including the 2000 Measure A and 2016 Measure B half-cent taxes.

If the new half-cent tax is approved by voters in 2026, the VTA’s share of the local sales tax would increase to 2.25%. This comes as the agency's own sales tax consultant, Avenu Insights & Analytics, projects modest revenue growth of just 0.4% in fiscal year 2026 and 2.1% in fiscal year 2027. The agency's budget has also been strained by a recent court ruling regarding the misallocation of sales tax revenue from eBay, which will reduce future funds from the Transportation Development Act (TDA), according to a VTA budget report from April 2024.

The VTA’s proposal does not exist in a vacuum. It adds to a growing list of tax initiatives facing residents and businesses in Santa Clara County. County leaders have placed a separate five-eighths cent general sales tax increase, known as Measure A, on a special election ballot for November 4 of this year. That measure is intended to generate roughly $330 million annually to support the region’s public health care system, which officials say is facing major federal funding cuts.

Should both the county’s Measure A and the VTA’s future tax hike pass, the cumulative impact would be substantial. The minimum sales tax rate in Santa Clara County would rise to 10.25%, while cities with their own local taxes, like Campbell, could see rates climb as high as 11%. For context, the sales tax rate in Cupertino is currently 9.125% and is already scheduled to increase to 9.75% in April 2026, even before these new measures are considered.

The push for higher sales taxes has drawn concern from taxpayer advocates and some public officials, who argue that such taxes are regressive, disproportionately affecting low and middle-income households. The Silicon Valley Taxpayers Association recently failed in a legal challenge to block the county's Measure A from the ballot, arguing the circumstances did not meet the legal definition of an emergency required for a special election. Public safety unions have also signaled apprehension about the county measure.

The political dynamics are complex. Mayor Mahan, despite voting to advance the VTA’s 2026 tax plan, has remained publicly noncommittal on the county’s more immediate Measure A proposal. His position reflects a difficult balancing act for local leaders trying to fund essential services without overburdening taxpayers in an already high-cost region.

For small and mid-sized business owners, the prospect of another sales tax increase is more than just a headline; it's a direct operational challenge. We see clients grappling with the complexity of 'tax stacking,' where city, county, and special district taxes pile up, creating a confusing compliance environment and potentially depressing consumer spending. A rate climbing above 10% can be a psychological barrier for customers and directly impacts a company's bottom line. The administrative burden of tracking and remitting these varied and changing rates cannot be understated. It requires diligent bookkeeping and a keen awareness of local ballot measures that many busy entrepreneurs simply don't have time for. Proactive planning is essential. This is precisely the type of challenge where our tax preparation and compliance services become critical, helping businesses stay ahead of shifting obligations. To ensure your business is prepared for these changes, contact C&S Finance Group LLC at csfinancegroup.com for guidance.

Looking ahead, all eyes will be on the November special election for Santa Clara County's Measure A. The outcome of that vote will likely serve as a key barometer of public appetite for tax increases and could significantly influence the political strategy and viability of the VTA’s proposed measure for the 2026 ballot. In the meantime, businesses across the county will be watching closely as they plan for a potentially more complex and costly tax landscape.