October 14, 2026
A spreadsheet is fine while the only owners are the founders. Once you sign your first SAFE or grant your first option, move the cap table to a dedicated platform, and do it at least two months before you start raising a priced round. Carta is the platform most venture investors and law firms work in, and it’s what we recommend.
Key takeaways
A spreadsheet is free and flexible, and at formation it’s enough. It lists the founders, their shares and their percentages. The trouble starts when the cap table gets more complicated. Options vest on different schedules, SAFEs need to be tracked separately from issued shares, and every grant has to match a 409A price and a board consent. In a spreadsheet, all of that is manual, and one wrong formula can mislead everyone who relies on it.
| Spreadsheet | Cap table platform | |
|---|---|---|
| Cost | Free | Low-cost plans for early companies, rising with size |
| Best for | Founders only, before any outside holders | From the first SAFE or option grant |
| Grants and signatures | Done separately, tracked by hand | Generates grant documents and collects e-signatures |
| 409A and compliance | Separate vendor, tracked by hand | 409A valuations, Rule 701 and Form 3921 tracking built in |
| Investor and employee access | Shared file | Each holder sees their own holdings and vesting |
| Error risk | High as complexity grows | Lower, but only as good as the data entered |
We recommend Carta. It’s the platform most venture investors, law firms and auditors already work in, so diligence and closings go faster when your cap table is there. Beyond the ledger, it issues option grants and SAFEs for e-signature, tracks vesting and exercises, offers 409A valuations, handles Rule 701 and Form 3921 reporting, and gives investors and employees a portal to see their holdings.
The market for these tools has shifted recently, with some products closing to new customers. Whatever you choose, make sure your lawyer and your investors can work in it, and that you can export your full data if you ever need to move. Pricing changes often, so check current plans directly.
Before you invite anyone, check the platform’s defaults. Decide what employees and investors can see beyond their own holdings, and turn off automatic emails you don’t want, such as exercise-deadline reminders sent to former employees. If any grant uses milestone or other nonstandard vesting, confirm the platform can track it, or someone will be calculating it by hand. And read how the vendor uses the data you load, since the platform will hold every stakeholder’s name, contact details and holdings.
Our rule of thumb is to move the day you sign your first SAFE or grant your first option. A SAFE is the first document a spreadsheet tends to get wrong, because it isn’t stock yet and has to be tracked on its own. See What Is a Cap Table? and SAFE.
If you haven’t moved by then, migrate at least two months before you start fundraising for a priced round. Even a simple cap table can take weeks to migrate, because every entry has to be matched to a signed document. You want the cap table clean and on a platform before investors ask to see it.
When you load the cap table onto a platform, someone has to match each line to the documents behind it. That is where problems surface. The most common are:
Most of these can be fixed, but some take board and stockholder action, so leave time. See Promising Equity vs Issuing Equity and How Do I Keep My Startup Legal Documents Organized?
No. A platform records and documents equity, but it doesn’t approve it. The board still has to approve each option grant at a price supported by a current 409A, and documents a platform generates are only as good as the inputs and templates behind them. See Startup Board Consent and 409A Valuation.
The company does. A founder or the finance lead usually owns the account. Give your lawyer access as an administrator or collaborator, so counsel can review grants, reconcile the cap table at each financing and fix problems inside the platform rather than in side spreadsheets.
For more, see Employee Option Pool and Equity Dilution. If you’d like help migrating or cleaning up your cap table, contact us.
