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Business Details
37 Years
experience
Your Trusted Accounting Partner in Carlsbad, CA
Ariniello & Associates, CPA has been delivering expert accounting and tax services since 1989, combining decades of professional experience with cutting-edge technology to serve businesses and families in Carlsbad, Encinitas, and North San Diego County. Our founders, Len and Terry Ariniello, bring over 50 combined years of expertise from leading national CPA firms and corporate controller roles, ensuring clients receive strategic financial guidance tailored to their unique needs. We specialize in tax planning, QuickBooks optimization, and outsourced accounting solutions, prioritizing direct access to principals for faster decision-making and personalized service.

Our mission focuses on helping clients maximize net worth through proactive financial strategies, supported by a commitment to continuous education in evolving tax regulations. With a track record of filing over 3,000 returns and managing accounting conversions, we blend the efficiency of a small firm with the sophistication of large-scale expertise.
Services
Tax Preparation QuickBooks Consulting Accounting Services Audit Support Tax Planning
Details
  • Year established: 1989
Highlights and features
  • We offer 50+ years of combined CPA experience from top-tier firms.
  • Our team provides direct access to principals for faster decision-making.
  • QuickBooks ProAdvisor since 2000 with cloud accounting expertise.
  • Specialize in multi-state tax strategies for complex financial scenarios.
  • Proven track record filing over 3,000 tax returns with audit guarantees.
Services
Tax Preparation
We prepare individual and business tax returns with strategic planning to maximize deductions. Our expertise covers multi-state filings, stock option strategies, and complex financial scenarios. Clients benefit from our annual tax code research and audit protection guarantees.
QuickBooks Consulting
As QuickBooks ProAdvisors since 2000, we implement cloud and desktop solutions tailored to business needs. Services include system selection, data migration, payroll integration, and mobile access setup for improved financial management efficiency.
Accounting Services
We offer outsourced accounting for small businesses including bookkeeping, financial reporting, budgeting, and bank reconciliation. Our services ensure accurate financial records while freeing clients to focus on core operations.
Audit Support
We provide audit preparation and support services for businesses requiring compliance verification. Our experience spans from small business reviews to complex financial statement analyses for growing enterprises.
Tax Planning
Our proactive tax planning identifies savings opportunities through income timing, retirement contributions, and tax-advantaged investments. We create customized strategies aligned with clients' short and long-term financial goals.
People
Len Ariniello
CPA
Former Arthur Young manager with expertise in audit, tax, and computer consulting. University of Colorado graduate with 35+ years of experience serving San Diego businesses.
Terry Ariniello
CPA
Ex-PriceWaterhouseCoopers manager specializing in audit fieldwork for emerging and established businesses. Cum laude University of Colorado graduate with equal experience in tax and accounting strategy.
Questions
What accounting services do you offer for small businesses?
We provide tax planning, QuickBooks setup/consulting, financial statement preparation, payroll processing, and outsourced CFO services tailored to small business needs.
Do you specialize in multi-state tax preparation?
Yes, we handle complex multi-state tax filings for individuals and businesses, ensuring compliance while maximizing deductions across jurisdictions.
How do you support clients transitioning to QuickBooks Online?
We manage data migration, staff training, and system integration while maintaining data integrity during cloud accounting transitions.
What experience do you have with startup businesses?
We specialize in early-stage ventures, establishing proper accounting systems and compliance frameworks until internal resources are viable.
Can you assist with IRS audit representation?
Yes, we offer audit support and guarantee our work for errors originating from our tax preparation process.