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Accounting Firm

California Perfect Tax

Portola Valley CPA practice for tax preparation, tax resolution, startup advice and business valuation

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TrustList summary

California Perfect Tax is a certified public accounting practice in Portola Valley, California. It prepares returns and plans tax for individuals and sole proprietors, and advises new and established businesses on structure, controls and value.

Services

  • Tax preparation and planning: completing and e-filing returns, checking deductions and credits, and adjusting payroll withholding; planning covers income splitting, timing of income and expenses, and tax-advantaged investments.
  • Tax resolution: arranging instalment plans, short-term arrangements, currently-not-collectible status and offers in compromise for income, payroll and property tax owed.
  • Bookkeeping for sole proprietors: tidying records, preparing Schedule C and setting up a simple system for keeping books current.
  • Startup advisory: helping new firms get started, setting policies to protect assets, and auditing records.
  • Business valuation: assessing customer base, growth prospects and financial health for sales, partnerships, financing, divorce or estate matters, with expert testimony if needed.

Clients

Individuals, sole proprietors, startups and existing small businesses.

Key facts

  • Based in: Portola Valley, California
  • Team: David A. Widerman, Mark R. Bewley and Makiko Goto-Widerman

Summary written by TrustList from the business's own published information, Sep 2026.

Categories & features

Rankings

California Perfect Tax is ranked on 1 TrustList ranking at #42.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. California Perfect Tax has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

Accounting firm · 1 ranking

  • #42of 207
    Real estate

    It is the only one of the top 79 here listing chemical and one of 2 here listing contractors.

    Of the top 79 here, 43 also cover tax and 40 also cover accounting; 4 also work in California and 3 also work in New York.

    Behind C21 Commercial, ahead of Calley Wood & Associates.

As of 2026-10-31. Organic ranks only; sponsored placements are never ranks. How TrustList ranks

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