Business Tax Preparation in San Diego, CA
Federal and California business tax returns prepared by a CPA team that also understands your books, your entity and your growth plans.
- CPA-led team
- Tax preparation and CFO planning in one place
- Built for $1M to $30M companies
Business tax preparation for San Diego companies
Business tax preparation in San Diego often means more than one return. A typical client might have an operating S corporation, an LLC that owns the building, and owners who live in different states. Scalesight prepares the federal and California returns for each entity and makes sure the pieces line up.
We start with the books. If reconciliations are behind or year-end entries are missing, we fix that first so the tax return is built on numbers you can defend.
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 tax issues we handle often
- Defense and government contractors: revenue recognition on long contracts, unbilled receivables and the timing questions they raise on the return.
- Biotech, medical device and software companies: federal and California research credits, and the treatment of research costs under current federal rules.
- Cross-border businesses near Otay Mesa: inventory, import costs and reporting when there is a related company in Mexico.
- Real estate holding LLCs: depreciation, cost segregation studies when they make sense, and separate California depreciation schedules.
What is included
- C corporation returns: federal Form 1120 and California Form 100
- S corporation returns: federal Form 1120-S, California Form 100S and shareholder Schedule K-1s
- Partnership and multi-member LLC returns: federal Form 1065, California Form 565 or Form 568 and partner K-1s
- Single-member LLC filings, including California Form 568 and the annual LLC tax
- Multi-state returns and apportionment when you sell or have employees outside California
- Extensions, estimated tax calculations and year-end tax projections
Full details on business 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.
Every business entity that is organized or doing business in California files with the Franchise Tax Board in addition to the IRS. S corporations pay California franchise tax of 1.5 percent of net income with an $800 minimum. LLCs pay the $800 annual tax and, once California gross receipts reach $250,000, an additional LLC fee that rises with revenue. C corporations pay California corporate franchise tax on top of federal income tax.
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
- Small Business Accountant in San Diego, CA
- All CPA services in San Diego
- Small Business Tax Preparation in San Diego County
- S Corp Tax Preparation in San Diego County
Nearby
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
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.
Business tax preparation questions from San Diego owners
Do I file a separate city income tax return in San Diego?
No. The City of San Diego does not have a business income tax return, but it requires a Business Tax Certificate for businesses operating in the city. Your income taxes are filed with the IRS and the California Franchise Tax Board.
Can you prepare returns for San Diego companies with operations in other states?
Yes. We prepare multi-state returns and work through apportionment and nexus questions when you have employees, property or significant sales outside California.
When should a San Diego business start preparing for tax season?
Year-end planning should start in the fall. Books should be closed and reconciled in January so S corporation and partnership returns can be filed by March 15 and C corporation returns by April 15.
Talk with a CPA about business 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