A due diligence checklist is a comprehensive, systematic framework that guides investors through the evaluation of a startup or company before committing capital, ensuring that critical aspects like financials, legal structure, market position, team capabilities, and intellectual property receive thorough examination. This structured approach transforms what could be an overwhelming investigation into a manageable process with clear categories and specific questions that uncover both opportunities and red flags.

    Why It Matters

    Without a standardized checklist, angel investors risk overlooking crucial warning signs or making emotional decisions based on incomplete information. A well-constructed checklist protects your capital by systematically surfacing issues that founders may downplay or haven't fully addressed themselves—from unresolved intellectual property disputes to questionable revenue recognition practices. Studies show that investors who follow structured due diligence processes experience 30-40% fewer failed investments compared to those who rely on intuition alone.

    Example

    Consider an angel investor evaluating a SaaS startup seeking $500,000. Her checklist includes 87 specific items across six categories. Under "Financials," she verifies monthly recurring revenue claims by requesting bank statements and Stripe data for the past 12 months. The "Legal" section prompts her to review all founder equity agreements, revealing that one co-founder retained 40% equity despite leaving the company—a potential future conflict. In "Market," she validates the addressable market size through third-party research reports, discovering the founders' $10 billion estimate was actually closer to $2 billion. The "Technology" section leads her to request a code review from a technical advisor, who identifies significant security vulnerabilities. These findings don't kill the deal, but they inform her negotiation, reducing her valuation by 25% and requiring the founders to address the IP issue before closing.

    Term Sheet, Cap Table, Investment Thesis