Due diligence is the investor's audit of your startup post-term sheet. Prepare by creating a virtual data room with all corporate, financial, legal, and team documents before you get a request. Acing DD is about organization, transparency, and building trust to close your deal on the best terms.
Key takeaways
- Start preparing early. Your due diligence process begins before you have a term sheet.
- Build a complete virtual data room with a logical folder structure.
- Audit your cap table and IP assignments—these are common deal-killers.
- Be transparent about bad news; the cover-up is worse than the problem.
- Due diligence is a two-way street; run your own checks on your investors.
- Organize key documents: PIIAs, financials, corporate records, and major contracts.
The term sheet is signed. The celebratory dinner is over. Now the real work begins.
Most founders think the term sheet means the deal is done. It’s not. The term sheet is the start of the final exam: due diligence (DD). This is where your investor, having liked the story, now sends in the auditors to make sure the story is true.
This process is where countless deals fall apart. Not because the business is bad, but because the founders are unprepared. They’re disorganized, slow to respond, and have hidden landmines in their legal or financial history. Don’t be one of them.
This guide is your tactical playbook for turning due diligence from a defensive, painful exercise into a professional process you control. Acing DD doesn't just get you the money—it builds deep trust with your new partners and sets the tone for your relationship for years to come.
When Diligence Truly Begins: Before the Term Sheet
Here’s the first non-obvious secret: due diligence doesn't start when an investor sends you a checklist. It starts months earlier, with you running a “pre-diligence” process on yourself.
You wouldn't launch a product without testing it. Why would you go to market for funding without auditing your own company? The best founders get their house in order before the first serious investor meeting. This means you’re not scrambling to find documents or fix problems under the pressure of a closing deadline.
Your Fortress: The Virtual Data Room (VDR)
Your entire diligence process will live in a Virtual Data Room. This is simply a secure, online folder where you’ll share all the requested documentation. Don't overthink the tool; a well-organized Dropbox or Google Drive folder is fine for a seed round. What matters is the structure and completeness.
Organize your VDR with a clear, numbered folder structure. This signals professionalism and makes it easy for the investor's team to find what they need.
Pro-Tip: Use a tool like DocSend or a dedicated VDR platform that provides analytics. Knowing who is looking at what, and for how long, gives you valuable insight into what areas are getting the most scrutiny.
Sample Data Room Folder Structure
01Corporate · 02Financials · 03Team · 04ProductandTech · 05Commercial · 06LegalandIP · 07Fundraising
The Due Diligence Checklist, Deconstructed
While every investor's list is slightly different, they all revolve around the same core areas. Here’s exactly what you need to gather for each folder in your VDR.
01Corporate
This folder proves your company is a legitimate, properly structured entity.
Certificate of Incorporation & Bylaws: The foundational documents of your company. · Board Consents & Meeting Minutes: A record of all major company decisions (e.g., granting stock options, firing an executive). If you haven't been doing this, start now. · Cap Table: A spreadsheet showing who owns what percentage of your company. It must be “fully-diluted,” meaning it includes all issued stock, outstanding options, promised but un-issued options, and all convertible instruments like SAFEs or notes. This is often the most scrutinized document.
02Financials
This proves you know your numbers and that your financial projections are grounded in reality.
Historical Financials: At least 18-24 months of P&Ls, balance sheets, and cash flow statements. If you’re pre-revenue, a clear statement of expenses is key. · Financial Model: The detailed spreadsheet model showing your 3-5 year projections. · Projections vs. Actuals: If you've been operating for a while, show your past projections and how you performed against them. This builds incredible trust. · Bank Statements: Be prepared to show several months of statements to verify cash on hand.
03Team
Investors are betting on you and your team. This section proves your team is properly employed and incentivized.
Org Chart & Headcount: A simple diagram and a list of all current employees and their roles. · Employment Agreements: Standard offer letters for all employees. · Key Hires: A brief document outlining the next 3-5 key roles you plan to hire post-funding.
04ProductandTech
Product Roadmap: A clear overview of what you plan to build over the next 12-18 months. · Tech Stack Diagram: A high-level overview of your system architecture. You don’t need to share code, but you must show you have a coherent plan. · Security & Compliance: Any documentation related to data privacy, security audits (e.g., SOC 2), or regulatory compliance (e.g., HIPAA) if applicable.
05Commercial
This section validates your market and your ability to sell into it.
Key Customer Contracts: Anonymized copies of your top 5-10 customer agreements. · Sales Pipeline: A list of your current sales leads and their status. · Marketing Metrics: Data on CAC, LTV, conversion rates, and channel performance.
06LegalandIP
Proprietary Information and Invention Assignment (PIIA): This is a non-negotiable document that confirms the company, not the employee or contractor, owns the intellectual property they create. You need a signed PIIA from every single person who has ever contributed to the product. · IP Portfolio: List of all patents, trademarks, and domain names owned by the company. · Litigation: A summary of any past or present legal disputes.
The 5 Founder Mistakes That Kill Deals in Diligence
Investors aren't looking for a perfect company. They are looking for manageable risks and founders they can trust. Avoid these unforced errors.
The Messy Cap Table. Verbal equity promises, un-signed SAFE documents, or confusion about who owns what will grind your deal to a halt. Use a tool like Carta or Pulley from day one and have your lawyer audit it before you fundraise. · IP Contamination. If a founder or early employee accidentally used code from a previous employer or an open-source license improperly, it can call your ownership of your entire product into question. This is why PIIAs are critical. · Hiding Bad News. Did you lose a major customer? Is a key employee leaving? Tell your investor proactively. The cover-up is always, always worse than the crime. Framing the bad news with your plan to address it builds trust. · Financial Disorganization. If your financial model doesn't tie to your historical P&L, or if your numbers are just sloppy, it signals you don’t have control over your own business. · Being Slow or Defensive. Responding to DD requests within 24-48 hours should be your goal. If you don't have a document, explain why and when they can expect it. If you get a tough question, don't get defensive; treat it as a chance to explain your thinking.
Due Diligence is a Two-Way Street
You are also choosing an investor who will sit on your board for the next 7-10 years. You must conduct your own diligence on them. Ask the lead partner for a list of 2-3 founders they have worked with, including one from a company that failed or struggled.
Questions to Ask a VC's References
"How does [Partner Name] behave when things are not going well?" · "Can you give me an example of a time they added concrete value beyond a board meeting?" · "How helpful were they in your next fundraise?" · "What was the biggest disagreement you had, and how was it resolved?" · "Is the firm's brand and network as helpful as they claim?"
How to Apply This Right Now
Don't wait for a term sheet. Take these three steps this week to prepare for a smooth diligence process.
Create Your VDR Skeleton. Make the top-level folders (01Corporate, etc.) in Google Drive or Dropbox right now. You don't have to fill them, but creating the structure is the first step. · Schedule a Cap Table Audit. Email your lawyer with the subject "Cap Table Audit for Fundraising Prep." Ask them to review all your SAFEs, notes, and equity issuances to confirm everything is signed and correct. · Gather Your PIIAs. Create a folder called "PIIAs" and put a signed copy of the agreement for every single employee and contractor in it. If you are missing any, get them signed immediately.
Mastering due diligence is one of the most crucial, high-leverage skills a founder can learn. It’s not just about closing this round; it’s about building a clean, well-documented company that is always ready for the next opportunity, whether it's a Series B, a strategic partnership, or an acquisition.
Frequently asked questions
- How long does due diligence usually take for a seed round?
- For a seed round, expect 2-4 weeks of active diligence after a term sheet is signed. This can be faster if you are well-prepared with a data room, or longer if issues arise.
- What are the biggest red flags during due diligence?
- Major red flags include a messy cap table, intellectual property that isn't clearly owned by the company, inconsistent financial reporting, and evasiveness from the founders.
- Do I need a lawyer for the due diligence process?
- Yes, absolutely. Your legal counsel is crucial for navigating corporate records, employment and IP agreements, and the final deal documents. Do not try to save money here.
- Should I give investors access to everything at once?
- No, use a phased approach. Start with high-level corporate and financial data. Reserve highly sensitive information like detailed customer lists or source code for the final stages, once you have more commitment from the investor.
