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    Business Formation Legal Resource Center

    20 in-depth guides, entity types, filings, governance, licensing, BOI reporting, banking, and business credit, for U.S. small business owners choosing, forming, and maintaining the right structure.

    Book a Free ConsultationEntity Structuring Services

    Entity Types

    Advanced Structures

    Registration

    Governance

    Filings & Compliance

    Business Finance

    Important disclosure about government services

    Centennial Accounting Group is a private accounting and tax firm. We are not a government agency and are not affiliated with, endorsed by, or acting on behalf of the IRS, the Colorado Secretary of State, or any other government body. Business registration and Employer Identification Number (EIN) applications can be completed directly with those agencies at no charge, or for the agency's own filing fee. Any fees we charge are for our professional preparation, advisory, and filing-support services only, they are separate from, and in addition to, any government fee.

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