Professional Practice: Accounting and Tax

At Dr. John McGowan LLC, our accounting and tax practice is built on a rare combination of professional expertise and academic excellence. With more than 30 years of CPA practice and 34 years as a tax professor at Saint Louis University, Dr. McGowan offers clients both cutting-edge technical knowledge and seasoned, practical insight.

Over the course of his career, Dr. McGowan has served in national, regional, and local CPA firms—including Ernst & Young and Deloitte—as well as boutique practices. This breadth of experience ensures that clients receive the highest level of professional service, informed by both Big 4 technical rigor and the accessibility of a trusted advisor.

Services Offered

    • Business and Individual Tax Preparation: Preparation and review of hundreds of corporate, partnership, and individual returns over the past three decades.
    • Tax Planning: Proactive strategies to minimize tax liabilities and ensure compliance with current law.
    • Accounting and Bookkeeping: Management of client records using QuickBooks and QuickBooks Online, with more than 25 years of hands-on experience.
    • Financial Statement Preparation: Compilation and review services designed to meet client needs and support business decision-making.
    • Advisory and Compliance: Guidance on entity structuring, retirement planning, and other specialized areas of tax and accounting.

A Different Kind of Accounting Firm

Many modern accounting firms are overwhelmed with volume, leaving clients feeling like numbers on a spreadsheet. At Dr. John McGowan LLC, we take a different approach. We are selective in the clients we serve, ensuring that every engagement receives the time, care, and attention it deserves.

We actively seek new business and individual clients who value a close, collaborative relationship with their CPA. By keeping our client base manageable, we can provide responsive service, thoughtful advice, and personalized solutions that larger firms often cannot match.

Why Clients Choose Us

    • Experience that matters: Decades of hands-on CPA practice combined with the scholarly perspective of a tax professor.
    • Personalized service: You will never be lost in the shuffle; we partner with clients for the long term.
    • Comprehensive solutions: From everyday bookkeeping to complex tax strategies, we bring clarity and confidence to your financial picture.
    • Trusted advisor: Our practice is guided by integrity, transparency, and professional excellence—values that foster lasting client relationships.

Now Accepting Clients

Dr. John McGowan LLC is currently accepting a limited number of new accounting and tax clients. If you are seeking a firm that combines big-firm expertise with personalized attention, we invite you to contact us for an initial consultation to determine whether we are the right fit for your needs.

Expert Witness, Researcher and Financial Consultant: Ph.D. Economics and CPA.

John R. McGowan, Ph.D., CPA

Dr. McGowan and his team provide high quality strategies to educate a jury in economic, accounting, tax, and financial valuation and analysis for fair awards.
314.221.5072
john@johnmcgowan.expert