The register is the legal record and the cap table is how you think about the round. Keep them as one set of data and the two can never disagree.
Cap table and share register are on the paid plans. The dilution calculator is free to anyone.
A cap table in a spreadsheet works until the second round. Then there is a SAFE from eighteen months ago, an option grant nobody recorded, a transfer between two shareholders done by email, and a version of the file on three laptops.
The cost is not the tidying. It is the week of due diligence spent proving the register is right, and the discount an investor applies when it takes you that long to answer.
Because the register is the part with legal consequences, and the cap table is a view of it.
Every holding sits on the register with its class, its certificate number and the date it was issued. The cap table reads from it, so the two cannot drift apart.
Ordinary, preference and whatever else the constitution allows, each with its own rights recorded rather than remembered.
Option grants with their vesting, and convertible notes and SAFEs recorded as the instruments they are, so the fully diluted view is a calculation rather than a guess.
Approving an allotment issues a numbered share certificate and notifies the investor, instead of leaving you to write both.
A transfer runs through its approval, produces the transfer form, and updates the register once the forms are signed.
The register and the cap table come out as files you can hand to a lawyer, a registry or an investor without reformatting anything.
Start on the free plan, and move up when you need the cap table.
Last updated 15 October 2026