Personal Tax Preparation in San Diego, CA
Individual tax returns for owners whose personal taxes are shaped by the business: K-1 income, rental property, equity, estimated payments and California rules that differ from federal.
- CPA-led team
- Tax preparation and CFO planning in one place
- Built for $1M to $30M companies
Personal tax preparation for San Diego companies
Scalesight prepares personal returns for San Diego business owners as a support service to our business work, so the K-1, rentals, estimates and any PTE credit all follow one plan.
Owners in San Diego often have equity from a local tech or biotech employer, rental property and a business at the same time. We prepare Form 1040 and California Form 540 with all of it in view.
San Diego is the county seat and its economic center, with 1,386,932 residents at the 2020 Census. The largest sectors of the city's economy are defense and the military, tourism, international trade, and research and manufacturing. The city's own financial report lists Naval Base San Diego, UC San Diego, Sharp HealthCare, Scripps Health and Qualcomm among its largest employers.
San Diego owner returns we prepare often
- Founders and employees of Torrey Pines and Sorrento Valley companies with stock options or RSUs.
- Owners with rental property in the city and a business K-1.
- Military and former military families who own a business, with residency and income sourcing questions.
- Couples where each spouse owns a different business.
What is included
- Federal Form 1040 and California Form 540 or 540NR, including part-year and nonresident returns
- Schedule K-1 income from S corporations, partnerships, LLCs and trusts, with basis and at-risk tracking
- Rental real estate on Schedule E, with separate federal and California depreciation where they differ
- Claiming California pass-through entity elective tax credits from entities that made the election
- Federal and California estimated tax calculations, including California's 30, 40, 0 and 30 percent installment schedule
- Stock compensation, sales of a business interest and other capital gains, which California taxes as ordinary income
Full details on personal tax preparation in San Diego County
San Diego specifics
Every business operating inside city limits needs a City of San Diego Business Tax Certificate, renewed annually, in addition to state registrations. Sales tax rates inside the city differ from some neighboring cities because of district taxes, so multi-location retailers and restaurants should confirm the CDTFA rate for each address.
California does not follow several federal rules that matter to business owners. The state does not allow the federal qualified business income deduction under Section 199A, does not allow federal bonus depreciation on business property that flows through to you, taxes capital gains at the same rates as other income, and has a much smaller standard deduction. For 2026, the FTB's Form 540-ES instructions list a California standard deduction of $5,706 for single filers and $11,412 for joint filers, while the federal amounts under Rev. Proc. 2025-32 are $16,100 and $32,200.
ZIP codes we serve in San Diego
- 92037
- 92093
- 92101
- 92102
- 92103
- 92104
- 92105
- 92106
- 92107
- 92108
- 92109
- 92110
- 92111
- 92113
- 92114
- 92115
- 92116
- 92117
- 92119
- 92120
- 92121
- 92122
- 92123
- 92124
- 92126
- 92127
- 92128
- 92129
- 92130
- 92131
- 92134
- 92136
- 92139
- 92140
- 92145
- 92154
- 92161
- 92173
- 92182
Related services
- Fractional CFO Services in San Diego, CA
- Business Tax Preparation in San Diego, CA
- Small Business Accountant in San Diego, CA
- Tax Planning for Business Owners in San Diego, CA
- S Corp Tax Preparation in San Diego, CA
- Partnership Tax Preparation in San Diego, CA
- LLC Tax Preparation in San Diego, CA
- All CPA services in San Diego
How to get started
Apply
Tell us about the business in about two minutes.
Growth Audit
A CPA reviews your statements, cash flow and tax approach.
Written plan
You get an action plan and, if we are a fit, a fixed scope in writing.
Execute
Monthly close, tax planning and CFO reviews on a set calendar.
Why owners choose Scalesight
Meet Brendan. He is the face of Scalesight CPA and the voice in our short videos. Every Growth Audit is CPA-led and ends with a written plan you can use with or without us.
CPA-led
Tax preparation, books and CFO work are led and reviewed by a CPA, not handed to a call center.
Built for $1M to $30M
Our process is designed for owner-led companies that have outgrown a basic tax preparer.
One team
The people who close your books also plan your taxes and prepare your returns, so nothing gets lost between firms.
Fixed scope in writing
You know what is included and what it costs before work starts.
Personal tax preparation questions from San Diego owners
Do you prepare personal returns for people without a business?
Our focus is business owners and their families. If you do not own a business, we may refer you to another preparer.
How do California estimated payments work?
According to the FTB, individuals pay 30 percent in April, 40 percent in June, nothing in September and 30 percent in January.
Can you help with stock options?
Yes. Incentive stock options, nonqualified options and RSUs are taxed differently, and California rules can differ. We plan exercises and sales with you.
Talk with a CPA about personal tax preparation in San Diego
Start with a free Growth Audit and get a written plan.
- Financial health review of recent statements and trends
- Cash flow and profitability analysis
- Review of your current tax approach
- Scalability readiness scorecard
- A written action plan you can use with or without us