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CA Wealth Tax: Can Your Former State Still Tax You?

Imagine moving across the country, only to discover your former state still wants a cut of your wealth. This is the core of a legal battle brewing over California's proposed 2026 Billionaire Tax Act. The initiative seeks a 5% one-time tax on the global net worth of billionaires who were California residents as of January 1, 2026.

Advocates claim it will generate vital funding for healthcare and social programs, but critics warn it could spark an exodus and set a dangerous precedent by taxing individuals long after they have surrendered their residency.

Inside the Proposed 2026 Wealth Tax

If passed on the November 2026 ballot, the legislation would:

  • Levy a one-time 5% excise tax

  • Target taxpayers with a net worth exceeding $1 billion

  • Base liability on January 1, 2026 residency status

  • Encompass worldwide assets

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According to information from the California Legislative Analyst’s Office (LAO), this could yield “tens of billions of dollars” starting in 2027. However, the LAO cautioned that taxing wealth might cause a permanent dip in state income tax revenue—potentially hundreds of millions annually—if targeted taxpayers relocate.

Federal Pushback: Keep Jobs in California Act

In response, U.S. Representative Kevin Kiley (R-CA) introduced the Keep Jobs in California Act (H.B. 7619). This federal bill blocks states from slapping a retroactive tax on a nonresident’s assets for any period before the law was enacted.

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Rep. Kiley characterized the state's move as an “unprecedented attempt” to retroactively tax individuals who have already relocated. This legislation focuses entirely on preventing post-departure asset taxation, not restricting states from taxing current residents.

Legal Hurdles and Migration Risks

Taxing former residents opens a legal hornets' nest. Analysts highlight constitutional red flags involving Due Process protections, Commerce Clause restrictions, and the fundamental right to travel. Given California's famously strict domicile tests, any post-departure enforcement will surely trigger immediate litigation.

Multiple competing initiatives have also been filed that could counteract the wealth tax, including proposals to:

  • Require a two-thirds voter majority for new one-time taxes

  • Prohibit new taxes on personal savings and retirement accounts

  • Clarify residency rules for part-time residents

This creates a direct confrontation between state revenue authority and federal constitutional limits.

Resolve Complex Tax Problems With Confidence

This battle proves that establishing residency goes far beyond a mailing address. At IRS Tax Pros, we don’t handle everyday bookkeeping; our sole focus is solving severe tax problems. As an Enrolled Agent, I have the federal authority to represent you through aggressive state residency audits and complex IRS disputes. If you need a licensed tax professional to protect your assets and resolve outstanding liabilities, contact us to schedule a consultation today.

Call Today
We solve tax problems for individuals and help tax pros solve tax problems for their clients.
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