Specific Residency Requirements in San Diego County

I recently met with Emily, a retired teacher who thought she’d “beat” California taxes by spending six months a year in Arizona. She meticulously tracked her days, believing that remaining under 183 days would shield her from California income tax. Unfortunately, Emily’s carefully laid plans crumbled when the FTB audited her return and assessed years of back taxes, penalties, and interest – totaling over $85,000. Her mistake? Assuming a simple day count was the deciding factor.

As an Estate Planning Attorney and CPA with over 35 years of experience here in Escondido, I routinely guide clients through these complex residency issues. It’s a nuanced area, especially in a desirable location like San Diego County, where many people maintain dual residences. The temptation to minimize state income tax is understandable, but a flawed strategy can lead to devastating consequences. The California Franchise Tax Board (FTB) looks far beyond just how many days you physically spend within the state’s borders.

What Constitutes Legal Residency in California?

Many assume that simply spending less than 183 days in California does not automatically terminate residency; the FTB uses the ‘Closest Connection’ test (evaluating 19 factors like your primary doctor and social ties) to determine domicile. This test considers your overall circumstances to determine where your true, fixed, and permanent home is located. It’s a holistic assessment, and the FTB places significant weight on factors indicating your intent.

For instance, maintaining a California driver’s license, registering to vote in California, and keeping your primary bank accounts here are all strong indicators of continued residency. Similarly, having the majority of your personal belongings in a San Diego County home, even if you spend extended periods elsewhere, can be decisive. We see clients trip up constantly when they believe a winter escape automatically resets their residency. It rarely works that way.

How Does Residency Impact Estate Planning?

Your California residency status has a massive impact on your estate plan, particularly when it comes to avoiding probate. For many Californians, a Revocable Living Trust is the cornerstone of their plan. However, the simplified probate procedures available through AB 2016 are becoming increasingly popular, and critically dependent on your domicile. For deaths on or after April 1, 2025, a primary residence valued up to $750,000 qualifies for a ‘Petition for Succession’ under AB 2016 (Probate Code § 13151). This is a significant advantage over the traditional, more complex probate process.

However, it’s vital to understand that this Petition requires a Judge’s Order, unlike the often-misunderstood Small Estate Affidavit (strictly for real property <$69,625, used for timeshares/vacant land). Additionally, to qualify for the AB 2016 process, the decedent’s other non-real estate assets (cash, stocks, etc.) must typically remain below the separate $208,850 Small Estate limit. Clients often mistakenly believe they can utilize AB 2016 regardless of their overall estate size, leading to disappointment and delays. What About the Tax Implications of Moving? Relocating entirely out of California requires a formal abandonment of domicile. This isn't just a matter of physically moving your belongings; it's a legal process that requires demonstrating a clear intent to establish residency in another state. This can involve establishing a new driver's license, registering to vote in your new state, and severing your ties to California. But simply moving yourself doesn't move your business income; under updated Regulation Section 25136-2 (effective Jan 1, 2026), California sources asset management fees based on the domicile of the underlying investors, not the fund itself. This is a crucial point for business owners and high-net-worth individuals. Furthermore, the One Big Beautiful Bill Act (OBBBA), which permanently increased the Federal Estate Tax Exemption to $15 million per person effective Jan 1, 2026, doesn't negate California's unique state estate tax rules. While the federal estate tax exemption is generous, California has its own separate estate tax and inheritance rules that must be considered. How Can a CPA-Attorney Help You? As both an attorney and a CPA, I’m uniquely positioned to provide comprehensive advice on these issues. My financial background allows me to analyze your situation from a tax perspective, ensuring that your estate plan maximizes potential tax savings, particularly the valuable step-up in basis that occurs upon death. I can help you avoid costly mistakes and ensure that your wishes are carried out efficiently and effectively. The FTB will use Form 4600 (Residency Questionnaire) to scrutinize your life, including the location of your dentist, the registration of your pets, and where you keep your safe deposit boxes. Preparing for this level of scrutiny before an audit is far more effective – and less expensive – than dealing with it afterward.

What standards do California judges use to determine a will’s true meaning?

In California, a last will and testament operates within a probate system that emphasizes intent, clarity, and procedural compliance. When properly drafted, a will does more than distribute property—it creates legally enforceable instructions that guide courts, fiduciaries, and beneficiaries through administration with fewer disputes and less uncertainty.

• Preparation: Review future needs regularly.
• Validation: Check legal requirements.
• People: Update personal information.

For California residents, understanding how intent, authority, and compliance interact is one of the most effective ways to protect family harmony and estate integrity. A will that anticipates probate scrutiny is far more likely to be honored as written and far less likely to become the source of unnecessary conflict.

Controlling Legal Standards for Establishing Domicile and Residency

• Residency Guidelines: FTB Pub 1031 (Guidelines for Determining Resident Status)
  This is the primary resource for the “Closest Connection” test. In 2026, it details how the FTB evaluates 19 factors—including the location of your healthcare providers and social ties—to determine if your presence in the state is “permanent” or merely “transitory.”
• Voter Registration: California Secretary of State – Voter Registration
  Updating your voting address is a critical indicator of intent. For the June 2, 2026, Primary Election, the deadline to register online is May 18, 2026. This serves as a public declaration of your primary home.
• Federal Estate Tax: IRS Estate Tax Overview
  While domicile determines state tax, this resource outlines federal guidelines. It reflects the 2026 OBBBA update, which permanently set the federal estate tax exemption at $15 million per person ($30 million for couples), indexed for inflation.
• Proof of Residency: California DMV – REAL ID Checklist
  Since the federal enforcement deadline passed in 2025, a REAL ID is mandatory for domestic flights. This page lists the specific residency documents (e.g., utility bills, tax returns) that the state accepts as proof of a permanent California address.