John Warner CPA is a tax and accounting firm based in San Luis Obispo, CA. The firm works with both individuals and businesses, with services centered on tax return filing, tax planning, accounting support, bookkeeping, financial statements, payroll, sales tax, and help with IRS notices and audits.

John R. Warner is identified as a Certified Public Accountant licensed by the California State Board of Accountancy in 1989. The firm’s website also describes business tax return filing, new business formation support, online financial calculators, a client portal, newsletters, and other tax and financial resources. Its public materials present the practice as a local Central Coast resource for tax and accounting needs.