If you're not willing to offer a potential co-founder equal equity, you should reconsider if that person is the right fit for your team.

In cases of unequal equity splits, a common mistake is assuming that one co-founder deserves a significantly larger share simply because of an agreement, which can lead to imbalances and conflicts.

Being generous with co-founder equity is crucial because co-founders provide the initial energy and activation needed for the company to succeed, especially in the early years.

When distributing co-founder equity, remember that most of the work has yet to be completed, so equity should motivate future contributions rather than reward past efforts.

Being more generous with equity for co-founders is beneficial, as it fosters long-term motivation to stay committed to the startup, especially during challenging times.

If you don't see the long-term value in your co-founders, you should reconsider their roles on your team and whether they deserve a generous equity grant.

It's advisable to split equity equally between co-founders to ensure both feel equally invested in the startup's success.

Having an idea is not a valid reason for a 90-10 equity split; execution is what truly matters in a startup.

Ideally, co-founders should have developed the idea together and worked on building the product from the start, but even if one co-founder joined later, an even equity split is still preferred.