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Business Details
37 Years
experience
Your Trusted Arizona Accounting Partner
Olin Business Solutions is a Public Accounting Firm licensed in Arizona, serving businesses and individuals since 1989. With over 35 years of experience, we combine deep accounting expertise with advanced computer systems knowledge to deliver tailored financial solutions. Our services include payroll processing, tax compliance, forensic accounting, and customized software support, all designed to meet the highest standards of quality and convenience.

We prioritize personal, prompt service, offering direct client access to our CPA 24/7 and providing free initial consultations. Our commitment to continuing education and industry-specific tools ensures clients receive cost-effective, reliable guidance for business success.
Services
Accounting Services Tax Compliance Payroll Processing Forensic Accounting Customized Programming
Details
  • Year established: 1989
Highlights and features
  • We offer 35+ years of Arizona-specific accounting experience and CPA expertise.
  • Our team provides 24/7 direct access to clients via mobile for urgent needs.
  • We deliver free initial consultations to understand and address client requirements.
  • We specialize in customized payroll software solutions for Arizona businesses.
  • Our service model eliminates billing for phone calls under five minutes.
Services
Accounting Services
We provide comprehensive accounting solutions including financial statement preparation, tax compliance, and business advisory services. Our CPA-led team ensures accurate reporting and strategic guidance for businesses of all sizes. With decades of Arizona-specific expertise, we help clients maintain regulatory compliance while optimizing financial operations.
Tax Compliance
Our tax compliance services cover payroll tax filings, sales tax returns, and business entity tax planning. We assist with both preparation and training for self-filing, ensuring clients meet all Arizona and federal requirements. Our expertise includes resolving complex tax issues and minimizing compliance risks through proactive strategies.
Payroll Processing
We offer customized payroll processing using specialized Arizona-focused software. Services include payroll tax return preparation, wage calculation, and system implementation. Our proprietary Microsoft Access database solution automates payroll tasks while maintaining compliance with state regulations, available at a nominal annual fee for non-clients.
Forensic Accounting
Our forensic accounting services identify financial discrepancies, support litigation matters, and uncover fraud. We analyze complex financial records and provide expert testimony when required. This service combines accounting expertise with investigative techniques to resolve disputes and strengthen financial controls for businesses.
Customized Programming
We develop tailored software solutions for accounting and business management needs. Our programming services integrate with existing systems to automate processes and improve efficiency. From payroll databases to specialized financial tools, we create user-friendly applications that address specific client requirements while ensuring data accuracy.
People
John M. Olin
CPA
John M. Olin is a licensed Certified Public Accountant with over 35 years of Arizona business experience. He combines accounting expertise with computer systems knowledge to deliver practical financial solutions. His approach emphasizes direct client access, personalized training, and cost-effective service delivery for businesses and individuals.
Questions
What accounting services do you offer for Arizona businesses?
We provide payroll processing, tax compliance, financial statement preparation, forensic accounting, and customized software solutions tailored to Arizona business needs.
How much does your Arizona payroll program cost?
Our custom payroll software is free for existing clients and available to others for $50/year plus setup and support fees.
Do you offer free consultations?
Yes, we provide free initial phone consultations to discuss your accounting needs and determine the best service approach.
What areas do you serve?
We primarily serve Arizona businesses and individuals from our Yuma-based practice.
How accessible are your accounting services?
Clients have direct 24/7 mobile access to our CPA for urgent matters and receive prompt support for all accounting needs.