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Business Details
50+ Years
experience
Trusted Accounting and Tax Services in Ann Arbor, MI
Since 1947, WSR Certified Public Accountants has been dedicated to helping individuals and businesses achieve financial success through comprehensive accounting, tax, audit, and advisory services. Our team of seasoned professionals combines decades of experience with a commitment to accessibility, approachability, and accountability, ensuring every client receives personalized attention. As a member of the BDO Alliance USA, AICPA, and MICPA, we adhere to rigorous industry standards while maintaining a forward-focused approach to financial planning.

Our expertise spans industries including manufacturing, healthcare, nonprofit organizations, and more, supported by advanced technology and continuous professional development. We prioritize long-term client relationships by delivering tailored solutions that address evolving financial and regulatory challenges.
Services
Tax Planning Business Advisory Audit Services Payroll Processing QuickBooks Setup Trust & Estate Tax Financial Reporting Bookkeeping Payroll Tax Filings Business Valuations
Details
  • Year established: 1947
Highlights and features
  • We have over 75 combined years of experience in accounting and tax services.
  • Our team includes seasoned CPAs with expertise across multiple industries.
  • We offer tailored financial solutions for businesses and individuals.
  • We utilize advanced technology for accurate and efficient accounting services.
  • We maintain rigorous professional standards through AICPA peer reviews.
Associations and certifications
  • BDO Alliance USA
  • American Institute of Certified Public Accountants (AICPA)
  • Michigan Institute of Certified Public Accountants (MICPA)
What people say
Thrilled with our decision Biggest assets
Services
Tax Planning
Our tax planning services help individuals and businesses minimize liabilities while maximizing savings through strategic compliance and foresight. We specialize in business taxation, individual returns, trust and estate planning, and international tax matters. With proactive guidance throughout the year, we ensure clients remain prepared for evolving regulations and life changes.
Business Advisory
We provide tailored business advisory services focused on growth, succession planning, and financial forecasting. Our team assists with acquisition strategies, profit distribution analysis, and internal control evaluations to help organizations navigate challenges and seize opportunities. Our goal is to position clients for long-term success through data-driven insights.
Audit Services
Our audit and assurance services deliver accurate financial statements and actionable recommendations for businesses across industries. We offer full-scale audits, reviews, and compilations using advanced technology to ensure precision. By understanding each client's unique needs, we provide cost-effective solutions that enhance transparency and support informed decision-making.
Payroll Processing
We handle all aspects of payroll processing, including tax filings, W-2 preparation, and compliance reporting. Our services ensure confidentiality and accuracy while reducing administrative burdens for businesses. From payroll checks to unemployment claims management, we help clients maintain compliance with federal and state regulations.
QuickBooks Setup
Our QuickBooks consulting services include setup, training, and ongoing support to optimize financial management. We help clients implement accounting systems tailored to their operational needs, ensuring proper configuration and staff proficiency. This service streamlines financial processes while improving data accuracy and reporting capabilities.
People
Mary Hancock
Principal
Mary Hancock, CPA, joined WSR in 2006 with over 25 years of experience in professional accounting. She specializes in delivering tailored financial solutions and has expertise in tax compliance and advisory services for diverse clients.
Paul Roush
Principal
Paul Roush, CPA, has over 25 years of public accounting experience. He joined WSR in 2013, focusing on audit services and financial reporting. His expertise spans multiple industries, including manufacturing and nonprofit organizations.
Tavi Finn
Principal
Tavi Finn, CPA, has practiced public accounting for over 20 years. She joined WSR in 2014, bringing extensive experience in tax planning and business advisory services for small to mid-sized enterprises.
Questions
What accounting services does WSR offer?
WSR provides tax planning, audit services, payroll processing, business advisory solutions, and QuickBooks consulting tailored to individual and business needs.
How does WSR help with tax planning?
We offer year-round tax consultation, compliance services, and strategic planning to minimize liabilities across business, individual, and international tax scenarios.
Can WSR handle payroll for small businesses?
Yes, we provide comprehensive payroll services including tax filings, W-2 preparation, and compliance reporting with complete confidentiality.
How does WSR stay updated on tax regulations?
Our team participates in ongoing professional education, AICPA peer reviews, and industry conferences to maintain expertise on evolving tax laws.