Due diligence is an investor's audit of your startup after a term sheet is signed. To succeed, proactively build a data room with all legal, financial, team, and product documents *before* you fundraise. A clean cap table, clear IP ownership, and well-documented financials are critical, as investors will verify everything and kill deals over disorganization or misrepresentation.
Key takeaways
- Build your data room before you get a term sheet to control the process.
- Your cap table must be 100% accurate. It's the most common deal-killing document.
- Ensure every contributor has signed an IP assignment agreement.
- Investors perform back-channel reference checks. Your reputation precedes you.
- Prepare your key customers for reference calls; their feedback is crucial.
- Treat due diligence as the start of a partnership, not a test to be passed.
Due diligence (DD) isn't a final exam you cram for. It’s the first, most invasive, and most important project you will do with your new investor. A signed term sheet isn't a promise of cash; it’s a non-binding agreement to start a deep, exhaustive audit of your entire company.
This process is about risk reduction for the investor. For you, it’s about building trust and proving your ability to operate. A smooth, fast DD process signals that you are a competent, organized founder. A sluggish, disorganized process filled with surprises erodes confidence and kills deals. Your goal is to make it a formality—a box-checking exercise where the investor finds exactly what you told them they’d find.
Most founders wait for the investor's DD request list after signing a term sheet. This is a mistake. It puts you on the back foot, rushing to find documents while the investor's clock is ticking. Momentum is everything in fundraising; delays create doubt.
The single most important thing you can do is prepare your data room before you get a term sheet. A data room is simply a secure, well-organized online folder (Google Drive, Dropbox, or a purpose-built platform like DocSend) containing every document an investor might ask for.
By preparing it in advance, you control the pace and the narrative. When the request list arrives, you can grant access within hours, not weeks. This signals elite operational readiness and builds immense trust.
Due diligence begins the moment a term sheet is countersigned. From that point, you are in a race against entropy. The longer the process drags, the higher the chance of the deal falling apart.
Best Case (You are fully prepared): 2-3 weeks for a Seed round, 3-4 weeks for a Series A. The investor's counsel reviews your organized documents, conducts a few calls, and confirms the details.
Average Case (Some cleanup needed): 4-8 weeks. You have most documents, but some are missing, your cap table has minor errors, or board minutes are incomplete. This…
Worst…
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Frequently asked questions
- How long does due diligence usually take?
- For a prepared founder, a seed round DD process takes 2-4 weeks. If you're disorganized or major issues arise, it can drag on for months and jeopardize the deal.
- What's the most common red flag in due diligence?
- A messy or inaccurate capitalization table is the single most common deal-killer. Other major red flags include unresolved IP ownership, co-founder disputes, and poor financial record-keeping.
- Do investors talk to customers during due diligence?
- Yes, always. Investors will want to speak with a handful of your key customers to get unfiltered feedback on your product, your team, and the value you provide.
- Can a deal fall apart during due diligence?
- Absolutely. A term sheet is non-binding. Deals collapse during DD due to misrepresentation, major red flags (legal, financial, team), or simply because the founder is so disorganized it erodes investor confidence.
- What is a data room?
- A data room is a secure online folder (like Dropbox, Google Drive, or a dedicated platform) where you organize and share all the documents requested by the investor for due diligence.
