A company signs a term sheet at a $6 million pre-money valuation. In the first week of due diligence, the investor's lawyer compares the cap table with the official share register. They do not match. An early employee was promised 2% in an email. A friend who lent $50,000 in year one believes the loan turns into shares. A co-founder who left three years ago still holds 15%, with no vesting and no buy-back.
None of it was hidden. It was simply never documented. The round does not collapse, but the price moves, the closing date moves, and the investor now reads every other document with more suspicion.
That is the real cost of a messy cap table. Not the legal fees to fix it, but the trust lost when the investor finds what the founder should have found first. A cap table clean-up before you raise is cheaper than any concession made during due diligence.
What a cap table actually is
A cap table, short for capitalisation table, lists who owns what in a company: founders, investors, employees with options, and anyone holding an instrument that can turn into shares. Many founders treat it as a spreadsheet they update when someone asks.
Investors treat it as a set of legal claims. Every number on the cap table must trace back to a signed document: a share certificate, a subscription agreement, an option grant, a board resolution. When the cap table and the documents disagree, the documents win, and the documents are what the investor's lawyer reads first.
Where cap tables break
Verbal equity promises. "You'll get a piece of this", said to an early hire or adviser, never written down, and remembered very differently three years later.
Unconverted money. Loans, advances and convertible notes that someone believes become equity, with no agreed conversion terms.
Founder departures without vesting. A co-founder who left early still holds a full stake, because nobody agreed what happens when a founder leaves.
Options without a plan. Grants promised in offer letters but never approved by the board or covered by an option pool.
Register drift. The share register, the cap table and the latest shareholder agreement each show a slightly different picture.
Each of these is fixable before a raise. During due diligence, each becomes a negotiation, and the founder negotiates from the weaker side.
How to do a cap table clean-up before you raise
Reconcile the cap table with the official share register, line by line, and correct whichever one is wrong.
List every equity promise ever made, written or verbal. Settle it in writing, document it properly, or withdraw it in writing.
Document every loan or advance that anyone believes is equity, with clear conversion terms or written confirmation that it is debt.
Record every option: holder, number, vesting schedule, and what happens if they leave. Confirm the board approved the pool.
Prepare a fully diluted view: what each person owns if every option and convertible turns into shares.
For a company with fewer than twenty holders, this usually takes two to four weeks. Most of that time goes on conversations, not paperwork. Have your lawyer review the final version before it goes into the data room.
The uncomfortable part: the verbal promise is the most expensive line
The founders who struggle most in due diligence are rarely the ones with complex structures. They are the ones with informal ones. A verbal promise cost nothing to make. To an investor it is an unquantified claim on the company, and unquantified claims get priced as risk: a lower valuation, a larger escrow, or a founder indemnity.
There is a second reason investors read the cap table closely. It shows how the founder treats commitments. A clean cap table says promises here are written down and kept. A messy one says the opposite, whatever the pitch deck claims.
We take founders through this exercise in our Startup and SME Investment Readiness Assessment course, alongside the wider document set covered in Investment Readiness Documents: The File Room Decides the Round, Not the Pitch.
How many people believe they own part of your company, and does your share register agree with every one of them?
