Keystone Tax LLC. Tax Consultant - Tax Preparation, Resolution, Planning Services in California

    Your business?

    Accounting & Tax

    Sunnyvale, CA

    Keystone Tax LLC, founded by Enrolled Agent Ellen Domorad, provides comprehensive tax preparation, accounting, and consulting services for both individuals and businesses in the San Francisco Bay Area. Their services include tax preparation and planning, IRS audit representation and resolution, small business accounting and bookkeeping, payroll processing, QuickBooks setup, new business formation, and succession planning. They specialize in helping business owners and individuals navigate complex tax situations and optimize their tax strategies.

    Best for: Personal Tax FilingSmall BusinessesIRS IssuesYear-Round Support

    Ideal for: Small business owners, self-employed professionals, individuals with complex tax situations, businesses needing bookkeeping and payroll support

    Service area: Sunnyvale, San Jose, Mountain View, Cupertino, and surrounding Silicon Valley communities

    What Sets Keystone Tax LLC. Tax Consultant - Tax Preparation, Resolution, Planning Services in California Apart

    Enrolled Agent Founder: Founded and led by Ellen Domorad, an Enrolled Agent with expertise in complex tax situations and IRS representation.

    Full-Service Business Support: Offers end-to-end accounting services including tax prep, bookkeeping, payroll, QuickBooks setup, new business formation, and succession planning—not just tax filing.

    IRS Problem Resolution: Specializes in resolving tax problems including audits, back taxes, liens, levies, penalty abatement, and payment plans.

    Individual Tax PreparationBusiness Tax ServicesBookkeeping ServicesCPA CertifiedIRS Audit RepresentationPayroll Services
    Tax PreparationIRS RepresentationBusiness AccountingPayroll ServicesTax Planning
    Google Rating
    4.8 ★ (35 reviews)
    Phone
    (408) 412-3373

    Location

    Address: 100 S Murphy Ave, Sunnyvale, CA 94086

    Phone: (408) 412-3373

    Website: keystonetaxes.com

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    Last updated April 16, 2026

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