Patrick J. Haddon, CPA is a St. Charles, IL-based accounting and tax practice serving small business owners, independent professionals, and individuals. The firm provides personalized support for accounting, bookkeeping, payroll, business and individual tax preparation, tax planning, and related compliance needs.

The practice also supports clients with new business formation, including incorporation and LLC filing, along with registered agent, notary, sales tax, and IRS notice or audit help. Source materials describe a fully virtual model from its St. Charles home base and note more than 20 years of professional expertise, with services explained in plain English for clients who want clear steps and practical financial guidance.

• QuickBooks help and bookkeeping support
• Business and individual tax preparation
• Payroll services and processing
• IRS issue resolution and audit notice help