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San Diego California Tax Guide 2026: CA 13.3%, Military Benefits & Nevada Exit Strategy

Daniel · CountryTaxCalc Updated April 2026
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KEY INSIGHT
San Diego residents pay California's state income tax (up to 13.3% on income above $1 million). San Diego has a large military and veterans community — active-duty military pay for California residents stationed elsewhere is generally not taxable by California, but military retirees' retirement pay IS subject to California income tax (unlike some states). San Diego's proximity to Nevada (3–4 hour drive) makes it a common consideration for CA residents thinking about domicile changes. However, California's FTB aggressively audits departing residents who maintain significant connections to California. San Diego property is subject to Prop 13 protections.
At a glance

Key Facts

California Income Tax in San Diego — Standard CA Rules Apply
San Diego residents are subject to California's standard income tax brackets: 1–9.3% on most income levels; 10.3% above ~$312,686 single / ~$625,372 MFJ; 11.3% above ~$375,221 single / ~$750,442 MFJ; 12.3% above ~$625,369 single / ~$1,000,000 MFJ; 13.3% above $1 million (flat surtax — no sunset). There is no San Diego city income tax. San Diego County does not impose income taxes. The state SDI (State Disability Insurance) contribution: 1.1% on all wages in 2026 (no wage cap from 2024 onward). CA Mental Health Services Tax: additional 1% on taxable income above $1 million (total top rate including MHST: 14.4% on income above $1M in some cases — combined with the standard 13.3% surtax structure).
Military and Veterans Tax Rules in California
San Diego's large military community faces specific California tax rules. Active-duty military pay: if you are a California resident (domiciled in CA) stationed elsewhere, your military pay is still subject to California income tax (CA taxes residents on worldwide income). If you are NOT a California domiciliary (e.g., Texas or Florida domicile) stationed at a San Diego base, your military pay is NOT taxable by California (per the Servicemembers Civil Relief Act). Military retirement pay: unlike active-duty pay, military retirement pay IS taxable by California for CA residents — no exclusion. Veterans disability compensation: exempt from CA income tax (as it is federally). VA housing allowances (BAH, BAS): exempt from income tax. USAA and military-specific financial products are common in San Diego — interest income on these is taxable in CA.
The Nevada Exit Strategy — Risks and Reality
California's FTB (Franchise Tax Board) is widely regarded as the most aggressive state tax authority in the US for pursuing departing residents. For San Diego residents moving to Nevada: You must establish genuine Nevada domicile — where you intend to make your permanent home. California will scrutinise San Diego connections: Do you maintain a San Diego home (even if rented out)? Do family members still live in San Diego? Do you spend more than a de minimis number of days in California? Does your spouse/partner remain in San Diego? Do you retain a California driver's licence? The 546-day rule: California presumes you are still a California resident if you spend more than 546 days in California during any 24-month period. The FTB has issued assessments against high-earners who moved to Nevada nominally while continuing to work and live primarily in San Diego or LA.
Prop 13 and San Diego Property Taxes
San Diego property taxes are governed by California's Proposition 13 (1978): assessed value is locked at purchase price; maximum 2% annual increase on assessed value; properties reassessed only on sale or significant new construction. San Diego County property tax base rate: 1% of assessed value plus voter-approved bond measures. Typical effective rate in San Diego: 1.1–1.3% of assessed value. San Diego's high property values (median home ~$800,000+) mean even at 1.2%, annual property tax is $9,600 on the median. Prop 13 creates a strong lock-in effect: longtime San Diego homeowners with assessed values far below current market value face a major tax increase if they sell and rebuy at current prices. Prop 19 (2021): changed parent-child transfer rules — children no longer inherit parent's Prop 13 base rate for non-primary-residence transfers.
San Diego Technology and Defense Sector Tax Considerations
San Diego has a growing technology and defense contractor sector (Qualcomm, Leidos, SAIC, General Atomics, Illumina, ServiceNow regional offices). For tech workers: RSU income taxed as ordinary income at CA rates at vesting (up to 13.3%); California has a specific rule on RSUs earned across multiple states — the portion allocable to California is based on the ratio of days worked in California during the vesting period to total days in the vesting period; California taxes RSU income regardless of whether the stock has been sold. For defense contractors: federal government contracts have specific qualified expense treatments; state contracts with California agencies are fully subject to CA CAT and income tax. San Diego's biotech corridor (Sorrento Valley, Torrey Pines) is one of the largest in the US — life science executives frequently have large equity packages subject to full CA rates.
San Diego Sales Tax
San Diego County combined sales tax rate: 7.75% (state 6% + county/district taxes). City of San Diego: 7.75% (same as county). Chula Vista, El Cajon, Escondido: generally 7.75%. San Diego sales tax applies to most retail sales of tangible personal property; groceries (unprepared food) are exempt at state level; prescription medications exempt; clothing taxable (unlike some states). Online purchases from out-of-state sellers: California requires use tax to be paid on purchases from vendors who don't collect CA sales tax. California's economic nexus threshold: vendors with >$500,000 in CA sales must collect CA sales tax. Compared to Oregon (0%) or New Hampshire (0%), San Diego's 7.75% is a significant consumer cost — though this is less than San Francisco's 8.625%.
Introduction

San Diego occupies a unique position in California's tax landscape. It is home to one of the largest concentrations of active-duty military and veterans in the US (Naval Base San Diego, Marine Corps Base Camp Pendleton, MCAS Miramar), creating distinct tax situations for this community. It also sits 3–4 hours from Las Vegas and Henderson, Nevada — the most popular destination for California high-earners seeking to exit California's high-tax environment while remaining near the lifestyle amenities of Southern California. This guide covers California income tax as it applies to San Diego residents, the military-specific rules, the Nevada exit option and its risks, Prop 13 property protections, and the overall San Diego tax picture.

Section 01

Moving from San Diego to Nevada: The FTB Audit Risk

Moving from San Diego to Nevada (or any state) to escape California income tax is legal — if done correctly. California's FTB audits thousands of departing high-earners annually and wins a significant percentage of those cases.

What the FTB Looks For

The FTB uses a facts-and-circumstances test to determine domicile. Red flags that trigger audit: maintaining a primary or secondary home in California; spending more than 6 months/year in California; having a spouse or domestic partner remain in California; keeping a California driver's licence; using California as a mailing address for financial accounts; California-sourced income (real estate, CA businesses, CA employment) continues after alleged move; professional licences maintained in California (medical, legal, contractor licences with CA addresses). High-income filers (500K+) are disproportionately targeted.

The San Diego-to-Nevada Profile

The San Diego to Nevada move is particularly common and particularly scrutinised. The drive time (3–4 hours to Las Vegas) means some 'Nevada residents' are actually in San Diego 3–4 days per week. FTB auditors are familiar with this pattern. What helps prove genuine Nevada domicile: Nevada driver's licence; Nevada voter registration; move of primary physician, dentist, attorney, and financial advisor to Nevada; social memberships (golf club, etc.) in Nevada; spending documented 183+ days/year in Nevada; spouse/family moving to Nevada; Nevada home purchase (not just rental).

California Source Income After Moving

Even after establishing Nevada domicile, California taxes income derived from California sources: rental income from California real estate; wages for days worked physically in California; California business income; capital gains from sale of California real property. A true Nevada resident who owns rental property in San Diego still owes California non-resident income tax on the rental income. Planning: some departing residents sell their California real estate as part of the exit to eliminate ongoing CA source income obligations.

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FAQ

Frequently Asked Questions

As active-duty military stationed at Naval Base San Diego, do I owe California income tax?

It depends on your legal state of domicile. If your domicile is California (you are from California and consider it your permanent home), then California taxes your military pay. If your domicile is another state (Texas, Florida, etc.) and you are stationed in San Diego, California cannot tax your military pay under the Servicemembers Civil Relief Act (SCRA). Active duty personnel should maintain their home state domicile documentation carefully — file taxes as a resident of their domicile state, not California. Military spouses: California generally cannot tax a non-CA-domiciled military spouse's income if the spouse moved to California solely due to the military member's orders (per the Veterans Benefits and Transition Act of 2018).

Is military retirement pay taxable in California?

Yes — California taxes military retirement pay as ordinary income for California residents. Unlike active-duty pay (which is exempt for non-CA-domicile servicemembers under SCRA), military retirement pay does not have a similar federal protection. California retirees pay up to 9.3% on their military pension income (at moderate income levels). VA disability compensation remains tax-exempt. Many military retirees in the San Diego area are aware of this and some relocate to Nevada, Arizona, or Texas (states with no income tax or that exempt military retirement) after their careers. This is a legitimate tax planning decision — though FTB domicile rules still apply.

What is the California FTB's 'safe harbour' rule for part-year residents?

California's 'safe harbour' for non-residents: if you spend 546 or fewer days in California over any consecutive 24-month period, California creates a presumption that you are NOT a California resident during that period. If you spend more than 546 days in California in 24 months, California presumes you ARE a resident. Note: this is a rebuttable presumption in both directions. High-income individuals moving to Nevada should track California days carefully — a day planner or phone GPS records become important audit evidence. The 546-day threshold works out to roughly 9 months/year, so spending summers in San Diego while being a Nevada resident year-round is generally safe if total CA days are below 546 over 2 years.

How do California RSU rules affect San Diego tech workers?

California taxes RSU income at vesting as ordinary income. For tech workers who earned RSUs while working in California and then leave California before vesting: California can still tax the California-source portion of those RSUs. California's allocation formula: (California workdays during vesting period ÷ total workdays during vesting period) × RSU income = California taxable RSU income. Example: you worked in San Diego for 2 of 4 years of a vesting period, then moved to Nevada. When the RSUs vest, 50% of the gain is California-source income. This can create a surprise California tax bill even after you've left the state. Keep records of where you worked each day during RSU vesting periods.
Disclaimer:This guide provides general tax information for educational purposes only. California FTB domicile rules are complex and fact-specific — residency audits involve detailed examination of your individual connections to California. Military tax rules have specific federal and state nuances. This is not tax advice. Consult a California CPA before making domicile changes.
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