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Trusted Accounting & Tax Services in Orange County
Riordan & Associates, CPAs is a professional accounting and tax services firm serving individuals and businesses in Orange County, California. With over 20 years of experience, our team of certified CPAs and QuickBooks Pro Advisors provides expert tax preparation, audit defense, bookkeeping, and payroll services tailored to meet the unique needs of small to mid-sized businesses and individuals. We prioritize integrity, quality, and value, leveraging the latest technology to deliver accurate and efficient solutions. Our commitment to client satisfaction is reflected in our personalized approach, ensuring every client relationship is treated as a partnership.We specialize in resolving complex tax issues, offering year-round tax planning, and providing ongoing accounting support to help clients achieve long-term success. Our growth has been driven by our ability to respond promptly to client needs and deliver results-focused services. We are fully licensed and insured, available year-round to assist with all accounting and tax-related matters.
Services
Tax Preparation
Bookkeeping
Payroll Services
Tax Audit Defense
QuickBooks Support
Highlights and features
- We have over 20 years of experience in accounting and tax services.
- Our team consists of certified CPAs and QuickBooks Pro Advisors.
- We offer free phone consultations to ensure our services meet your needs.
- We use the latest technology for accurate and efficient service.
- We are fully licensed and insured for your protection.
Associations and certifications
- AICPA
- Intuit QuickBooks ProAdvisor
What people say
Expert advice
Highly competent team
Saved me a ton of money
Very professional
Timely manner
Services
Tax Preparation
We provide comprehensive tax preparation services for individuals, corporations, partnerships, and nonprofits. Our team ensures accurate and timely filing of federal, state, and local tax returns while identifying deductions and credits to minimize liabilities. With year-round tax planning, we help clients optimize their financial strategies and avoid common pitfalls.
Bookkeeping
Our bookkeeping services include QuickBooks setup, training, and ongoing support to maintain organized financial records. We ensure accurate tracking of income, expenses, and payroll, enabling informed business decisions. Clean books streamline year-end tax preparation and improve overall financial management for small to mid-sized businesses.
Payroll Services
We handle all aspects of payroll processing, including tax filings, W-2/W-3 preparation, and compliance with federal and state regulations. Our services reduce administrative burdens, ensuring employees are paid accurately and on time while maximizing tax-saving opportunities for businesses.
Tax Audit Defense
We represent clients during IRS, FTB, and EDD audits, providing expert guidance to resolve tax disputes. Our team responds to notices, prepares documentation, and negotiates settlements for levies, liens, or back taxes. We protect taxpayer rights and mitigate financial risks through strategic defense.
QuickBooks Support
As Certified QuickBooks Pro Advisors, we offer setup, troubleshooting, and training for QuickBooks users. Our support ensures accurate financial tracking, streamlined reporting, and integration with tax planning. We help businesses leverage QuickBooks features to enhance efficiency and decision-making.
People
Aaron Riordan
CPA
Aaron Riordan is a licensed CPA with over 20 years of experience in accounting and tax services. He specializes in resolving complex tax issues, providing strategic financial planning, and supporting small businesses in Orange County. Clients praise his expertise, responsiveness, and dedication to their success.
Questions
What accounting services do you offer?
We provide tax preparation, bookkeeping, payroll services, tax audit defense, and QuickBooks support for individuals and small to mid-sized businesses.
Are you available for urgent tax issues?
Yes, we offer emergency tax services, including audit representation and resolution of liens, levies, and back taxes.
How do you handle payroll compliance?
We ensure accurate payroll processing, tax filings, and compliance with federal, state, and local regulations to avoid penalties.
Do you offer free consultations?
Yes, we provide a free 15-minute phone consultation to assess your needs and determine how we can assist.
What areas do you serve?
We primarily serve Orange County, CA, and surrounding areas in Southern California.
Are you certified QuickBooks Pro Advisors?
Yes, our team is certified to provide QuickBooks setup, training, and ongoing support for businesses.
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