If there is one quintessential task a startup CEO needs to be in charge of is not letting the company running out of money. Being on top of your Financial Model and business budget can make a difference and can enable managers and founders to make game-changing decisions. To give you an example, about nine months ago a quick prediction in our financial model enabled us to make our company profitable while duplicating our marketing budget.

The spreadsheet we use is an evolution of a template created by our investors at Carao Ventures. Over the years, I’ve simplified it to remove unnecessary modules and adapted it to serve the purposes of our SaaS business model. I’ll elaborate on the main features we used to make the model work in our favor-...