Trusted Bookkeeping, Accounting & Tax Services
Simplify your finances with professional bookkeeping, accounting, process improvement, and tax services. We provide customized solutions that help businesses stay organized, compliant, and positioned for success.
Bookkeeping & CFO Services You Can Trust
Koya Financial LLC helps small businesses across Orange County stay tax-ready and financially organized.
Monthly Bookkeeping
Accurate, up-to-date books for small businesses across Orange County, every month.
Tax Preparation
Federal and California tax filing, done by the same team that manages your books.
Payroll Processing
On-time, compliant payroll for California small businesses of any size.
Fractional CFO Advisory
Strategic financial guidance at a fraction of a full-time CFO's cost.
EXCELLENT Based on 17 reviews Posted on Google Binh NguyenTrustindex verifies that the original source of the review is Google. Pleasant, personal, and detailed service...highly recommendedPosted on Google KidadaTrustindex verifies that the original source of the review is Google. Very greatful for this service. Koya maintains my bookkeeping on a monthly basis with regular updates and check-ins to ensure I am in relationship with my business finances. As a small business owner, working with Samson has allowed me to take my mind off the numbers and work more comfortably on other aspects of my business.Posted on Google Ehigiator JudeTrustindex verifies that the original source of the review is Google. I had a great experience with Koya Financial LLC. Their team was professional, knowledgeable, and responsive throughout the process. They took the time to explain everything clearly and provided excellent bookkeeping and financial guidance. I appreciate their attention to detail and commitment to quality service. I highly recommend Koya Financial LLC to anyone looking for reliable accounting and financial support.Posted on Google Busari AbassTrustindex verifies that the original source of the review is Google. Working with Koya Financial LLC over the last few months has taken a lot of stress off my shoulders. Instead of worrying about my bookkeeping and finances, I can focus more on growing my business. They're easy to reach, explain things clearly, and genuinely care about helping you move forward. I've also seen how much they've grown, and it's obvious they're building something with a long-term vision. Definitely a team I'd recommend.Posted on Google Jennifer OrtizTrustindex verifies that the original source of the review is Google. Great working with you Sam
10+
YEARS OF
EXPERIENCE
Bookkeeping & CFO Services You Can Trust
From day-to-day bookkeeping to strategic CFO advisory, Koyafin Financial LLC delivers reliable accounting and tax solutions that help businesses stay compliant, improve financial performance, and grow with confidence. We partner with business owners to simplify complex financial challenges and create lasting value.
- Expert Bookkeeping & Accounting Services
- Tax Planning, Preparation & Compliance
- Financial Reporting & Business Insights
- Process Improvement & Operational Efficiency
- Fractional CFO Support for Sustainable Growth

Samson Olukoya
FOUNDER & CEO
Bookkeeping, tax, and CFO advisory engagements delivered for small businesses across Orange County.
Backed by real client reviews on Google — see for yourself.
Small business owners who trust Koyafin with their books, taxes, and financial strategy.