California Wealth Tax Proposal Sparks Estate Planning Debate

What Happened

California gubernatorial candidate Tom Steyer addressed concerns about a proposed billionaire wealth tax during a recent interview, offering his perspective on taxation and wealth inequality in the state. The proposal, which would tax the wealth of billionaires rather than just their income, has sparked debate about its potential impact on California’s economy and tax base.

Steyer, himself a billionaire who made his fortune in business before transitioning to political advocacy, expressed support for taxing billionaires but favored broader structural changes. He proposed closing what he called a “multi-decade corporate real estate tax loophole” worth $208,850Cal. Prob. Code § 13100Verified Sep 8, 2026View source billion to the state. The candidate emphasized his commitment to giving away the bulk of his wealth during his lifetime and stated he would “not die a billionaire.”

The discussion comes as California faces ongoing affordability challenges, with housing costs pushing the average age for first-time homebuyers from 28 to 42 years old. Steyer connected tax policy to broader issues of economic inequality, arguing that success should not mean “12 trillionaires and 40 million people who can’t make rent.”

What It Means

The wealth tax debate highlights critical estate planning considerations for California’s high-net-worth residents. Under current federal law, estates exceeding $15,000,00026 USC 2001(c), 2010; P.L. 119-21 §70106Verified Sep 15, 2026View source face a 40%26 USC 2001(c)Verified Sep 15, 2026View source federal estate tax rate. California does not impose state estate or inheritance taxes, making it more attractive than states with additional death taxes.

A billionaire wealth tax could fundamentally change estate planning strategies for ultra-high-net-worth families. Traditional approaches like gifting $19,00026 USC § 2503(b); Rev. Proc. 2025-32 § 4.42Verified Sep 15, 2026View source annually to beneficiaries or creating sophisticated trust structures might need reevaluation if wealth itself becomes subject to annual taxation. The proposal could accelerate charitable giving strategies and prompt more aggressive wealth transfer techniques before implementation.

The corporate real estate tax loophole closure Steyer mentioned could affect business owners who hold commercial property through corporate structures. Many California entrepreneurs use these arrangements for liability protection and tax efficiency. Changes could impact how business assets are structured within estate plans, particularly for family-owned enterprises planning multi-generational wealth transfer.

Probate and Trust Implications

California’s probate system already encourages trust-based estate planning due to its complexity and cost structure. While independent administration is available, probate still typically takes 12 months to 18 months and involves statutory attorney fees of 4% on the first $100,000 of estate value.

For estates under $208,850Cal. Prob. Code § 13100Verified Sep 8, 2026View source, California’s Small Estate AffidavitCal. Prob. Code § 13100Verified Sep 8, 2026View source procedure offers a simpler alternative to full probate. However, wealthy families considering relocation to avoid potential wealth taxes would need to understand how residency changes affect their estate planning documents and beneficiary protections.

Context from SimplyTrust

Estate planning strategies must adapt to changing tax landscapes, whether at the federal or state level. Wealthy California families often benefit from Nevada trust structures, which offer enhanced asset protection and tax advantages. SimplyTrust’s Nevada-based revocable trusts provide these benefits regardless of where clients live, offering flexibility if tax policy changes prompt relocation considerations.

The Estate Ledger feature becomes particularly valuable during periods of tax uncertainty, creating tamper-proof records of all trust modifications and asset transfers. This documentation proves essential for tax compliance and provides clear evidence of planning decisions made in response to changing legislation.

Source: Transcript: Tom Steyer Says That He’s A Good Billionaire | The New Republic