Tax services

Tax Planning in California

Year-round tax planning that pays for itself. Quarterly check-ins, scenario modeling, and proactive advice on the events that actually move the needle — entity changes, retirement contributions, equity comp, real estate, and major life transitions.

Tax planning for California residents means understanding both the federal picture and the CA tax overlay simultaneously. Top California income-tax rate: 9.30%. California levies a state sales tax. California's Technology, entertainment, agriculture, tourism economy generates filers with equity compensation, multi-state income, retirement distributions, and real-estate portfolios — all of which require planning decisions that account for CA's specific rate structure, conformity rules, and credit availability. We provide quarterly projections for federal and CA liability, calculate estimated payments using current-year numbers rather than the prior-year safe harbor when the latter would overpay, and model multi-year strategies — Roth conversions, entity-structure changes, depreciation timing — across the West footprint. Planning engagements begin with a free scoping call and are priced as a flat monthly retainer or a single-scenario analysis depending on complexity.

What to know if you file from here

California residents planning significant financial moves — entity changes, property sales, retirement rollovers, equity-compensation exercises — should model CA tax consequences alongside federal ones, because the two calculations diverge on conformity, deductions, and credit availability. Top California income-tax rate: 9.30%. California levies a state sales tax. California's Technology, entertainment, agriculture, tourism industries regularly generate income taxed at different effective rates under state law than under federal law, which makes a combined projection essential before committing to any year-end strategy.

Who this service is for

Business owners and self-employed professionals
High-W-2 earners with equity comp or significant investment activity
Real estate investors growing their portfolio
Anyone navigating a major life or business transition
Pre-retirees thinking about Roth conversions and bracket management
Families planning education funding or generational transfer

What we'll discuss in our first session

Your most recent two years of returns
Current year-to-date pay stubs, K-1s, or business P&L
Equity-grant agreements (vest schedules, exercise prices, AMT history)
Retirement account balances and contribution history
Outstanding loans and major expected cash needs
Goals — what 'success' looks like in 1, 3, and 10 years

Frequently asked questions for California

How do I calculate quarterly estimated taxes for California?

Project your full-year CA taxable income, apply California's rate brackets, subtract expected withholding, and divide by four — or use the annualized method when income is uneven. Top California income-tax rate: 9.30%. California's payment calendar and safe-harbor thresholds may differ from the federal schedule, so we calculate CA and federal estimates on separate tracks to avoid underpayment penalties at either level.

Does a Roth conversion make sense with California's income tax?

Roth conversions increase ordinary income in the conversion year, triggering CA income tax on top of the federal liability. Top California income-tax rate: 9.30%. The correct breakeven compares your current combined CA-plus-federal marginal rate against your projected future withdrawal rate — factoring in any California exemptions on retirement distributions. We model this over a multi-year horizon for West clients before recommending a conversion amount.

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