CPA and Fractional CFO Services Across San Diego County
Business tax preparation, tax planning, accounting and fractional CFO support for growing companies in every corner of the county.
- CPA-led team
- Tax preparation and CFO planning in one place
- Built for $1M to $30M companies
A CPA firm for San Diego County's growing businesses
San Diego County had 3,298,634 residents at the 2020 Census, spread across 18 incorporated cities and a large unincorporated area. Its economy leans on defense and the military, tourism, international trade, and research and manufacturing, with life science and technology clusters in the north and cross-border commerce in the south.
That variety creates very different accounting needs. A defense subcontractor in Kearny Mesa, a medical device company in Carlsbad, a contractor in Escondido and an importer near Otay Mesa all file business tax returns, but their books, credits and cash cycles have little in common. Scalesight builds tax preparation, accounting and fractional CFO work around how each business actually operates, for owners doing roughly $1M to $30M in revenue.
We are a virtual-first firm. Clients across the county share documents securely, connect their accounting systems and meet with their CPA and CFO by video on a set schedule, so the same team can support a business in Fallbrook as easily as one downtown.
Services for San Diego County businesses
Tax preparation is the core, with tax returns and tax filing for every common entity type, supported by planning, accounting and CFO services.
Fractional CFO Services
Fractional, virtual and outsourced CFO support: forecasts, dashboards and lender reporting.
Learn moreBusiness Tax Preparation
Federal and California corporate, S corp, partnership and LLC tax returns.
Learn moreSmall Business Tax Preparation
Tax returns, quarterly estimates and 1099s for owners moving past DIY software.
Learn moreS Corp Tax Preparation
Form 1120-S, Form 100S, K-1s, reasonable compensation and basis tracking.
Learn morePartnership Tax Preparation
Form 1065, partner K-1s, capital accounts and California Form 565 or 568.
Learn moreLLC Tax Preparation
Single and multi-member LLC returns, Form 568, the $800 tax and LLC fee.
Learn moreTax Planning for Business Owners
Year-round planning for owners: structure, compensation, PTE tax and timing.
Learn moreSmall Business Accounting and Bookkeeping
Monthly and catch-up bookkeeping, QuickBooks and month-end close.
Learn moreCities we serve in San Diego County
City pages cover local industries, licensing and the ZIP codes we serve. More city pages are being added.
- San DiegoCPA and CFO services, 42 ZIP codes
- Chula VistaCPA and CFO services, 6 ZIP codes
- OceansideCPA and CFO services, 4 ZIP codes
- EscondidoCPA and CFO services, 4 ZIP codes
- CarlsbadCPA and CFO services, 4 ZIP codes
- El Cajon3 ZIP codes: 92019 92020 92021
- Vista3 ZIP codes: 92081 92083 92084
- San Marcos3 ZIP codes: 92069 92078 92096
- Encinitas2 ZIP codes: 92007 92024
- La Mesa2 ZIP codes: 91941 91942
- Santee1 ZIP code: 92071
- National City2 ZIP codes: 91950
- Poway1 ZIP code: 92064
- Lemon Grove1 ZIP code: 91945
- Imperial Beach1 ZIP code: 91932
- Coronado4 ZIP codes: 92118 92135 92155
- Solana Beach2 ZIP codes: 92075
- Del Mar1 ZIP code: 92014
Unincorporated communities we serve
Businesses outside city limits answer to the County of San Diego for many permits but file the same state and federal tax returns. We serve owners in these communities and the ZIP codes around them.
- La PresaZIP 91977
- FallbrookZIP 92028
- Spring ValleyZIP 91977 91978
- Winter GardensZIP 92021 92040
- Rancho San DiegoZIP 92019
- RamonaZIP 92065
- LakesideZIP 92021 92040
- Casa de Oro-Mount HelixZIP 91941 91977 92020
- BostoniaZIP 92021
- AlpineZIP 91901
- BonitaZIP 91902
- San Diego Country EstatesZIP 92065
- Valley CenterZIP 92027 92082
- JamulZIP 91935 91978
- Eucalyptus HillsZIP 92040
- Lake San MarcosZIP 92078
- BonsallZIP 92003 92084
- Hidden MeadowsZIP 92026
- Harbison CanyonZIP 92019 92021
- Granite HillsZIP 92019 92021
- Rancho Santa FeZIP 92067 92091
- Borrego SpringsZIP 92004
- Fairbanks RanchZIP 92067 92091
City of San Diego communities
Within the City of San Diego we work with businesses in every community planning area, including:
- Barrio LoganZIP 92113 92136
- Black Mountain RanchZIP 92127 92129
- Carmel Mountain RanchZIP 92128
- Carmel ValleyZIP 92130
- City HeightsZIP 92105
- ClairemontZIP 92110 92111 92117
- College AreaZIP 92115 92182
- Del Mar MesaZIP 92129 92130
- Downtown San DiegoZIP 92101
- EncantoZIP 92102 92114
- Golden HillZIP 92102
- Kearny MesaZIP 92111 92123
- Kensington-TalmadgeZIP 92115 92116
- La JollaZIP 92037 92093
- Linda VistaZIP 92110 92111
- Mid-City Eastern AreaZIP 92105 92115
- Midway DistrictZIP 92110 92140
- Mira MesaZIP 92121 92126
- Miramar Ranch NorthZIP 92131
- Mission BeachZIP 92109
- Mission ValleyZIP 92108
- NavajoZIP 92119 92120 92124
- Normal HeightsZIP 92116
- North ParkZIP 92104 92116
- Ocean BeachZIP 92107
- Old TownZIP 92110
- Otay MesaZIP 92154
- Otay Mesa-NestorZIP 92154
- Pacific BeachZIP 92109
- Pacific Highlands RanchZIP 92130
- Point LomaZIP 92106 92107
- Rancho BernardoZIP 92127 92128
- Rancho EncantadaZIP 92131
- Rancho PeñasquitosZIP 92129
- Sabre SpringsZIP 92128
- San YsidroZIP 92173
- Scripps RanchZIP 92131
- Serra MesaZIP 92123
- Skyline-Paradise HillsZIP 92114 92139
- Southeastern San DiegoZIP 92102 92113
- TierrasantaZIP 92124
- Torrey HighlandsZIP 92129 92130
- Torrey HillsZIP 92130
- Torrey PinesZIP 92014 92121
- University CityZIP 92037 92093 92121 92122
- UptownZIP 92103 92116
Local rules that affect San Diego County businesses
City business licenses
Most cities in the county require a business license or tax certificate for companies operating inside city limits. The City of San Diego calls it a Business Tax Certificate. Renewals are easy to miss when you grow into a new city.
Sales and use tax
The CDTFA administers sales and use tax, and district taxes mean rates vary across the county. Retailers, restaurants and companies that deliver need the right rate for each location.
California conformity
California does not follow federal bonus depreciation and caps Section 179 at $25,000. LLCs pay an $800 annual tax and S corporations pay 1.5 percent of net income, so state planning matters as much as federal.
All San Diego County ZIP codes we serve
- 91901
- 91902
- 91905
- 91906
- 91910
- 91911
- 91913
- 91914
- 91915
- 91916
- 91917
- 91931
- 91932
- 91934
- 91935
- 91941
- 91942
- 91945
- 91948
- 91950
- 91962
- 91963
- 91977
- 91978
- 91980
- 92003
- 92004
- 92007
- 92008
- 92009
- 92010
- 92011
- 92014
- 92019
- 92020
- 92021
- 92024
- 92025
- 92026
- 92027
- 92028
- 92029
- 92036
- 92037
- 92040
- 92054
- 92055
- 92056
- 92057
- 92058
- 92059
- 92060
- 92061
- 92064
- 92065
- 92066
- 92067
- 92069
- 92070
- 92071
- 92075
- 92078
- 92081
- 92082
- 92083
- 92084
- 92086
- 92091
- 92093
- 92096
- 92101
- 92102
- 92103
- 92104
- 92105
- 92106
- 92107
- 92108
- 92109
- 92110
- 92111
- 92113
- 92114
- 92115
- 92116
- 92117
- 92118
- 92119
- 92120
- 92121
- 92122
- 92123
- 92124
- 92126
- 92127
- 92128
- 92129
- 92130
- 92131
- 92134
- 92135
- 92136
- 92139
- 92140
- 92145
- 92154
- 92155
- 92161
- 92173
- 92182
How working with Scalesight starts
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.
San Diego County CPA questions
What parts of San Diego County does Scalesight serve?
We serve businesses in all 18 incorporated cities, from San Diego, Chula Vista and Oceanside to Del Mar and Solana Beach, as well as unincorporated communities such as Fallbrook, Ramona, Lakeside, Spring Valley and Rancho Santa Fe. Our work is delivered through secure online tools and scheduled video meetings.
Do I need a CPA located in my city?
No. What matters is that your CPA understands California and local rules, such as city business licenses and sales tax rates that vary across the county. We work with clients countywide without requiring office visits.
Which San Diego County businesses are the best fit?
Owner-led companies with roughly $1M to $30M in revenue that want business tax preparation, accounting and fractional CFO planning handled by one team.
Do sales tax rates differ across San Diego County?
Yes. The statewide base rate applies everywhere, but several cities add voter-approved district taxes, so the rate can change from one city to the next. Businesses with multiple locations or deliveries should confirm rates with the CDTFA for each address.
Can you help with both business and personal tax returns?
Yes. Personal tax preparation is available for business owners with complex returns, so K-1 income, estimated payments and state taxes stay coordinated with the business.
Start with a free Growth Audit
See where your numbers, tax approach and reporting stand today, and what to fix first.
- 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