Finance person here, this is a good grounding of the basics. The hardest part to take forward is working out the timing of things. A company is constantly owed and owing money, and this is the real trick to working out your funding requirements. On top of the model every business needs an operational cash flow forecast going out say 3 months at least. For every day you enter the brought forward balance from yesterday…
I've heard that it's rather common to be technically profitable (i.e.: a company has a greater income than expenses), but nonetheless insolvent due to bills coming due before clients pay their invoices. From what I was told, this mostly affects supply-chain heavy companies; software companies are mostly spared this kind of consideration. What are some of the red flags that founders should be aware of when reading the…
Otherwise you should model what happens when the sales come late or not at the level you want, Braintree hold your cash, etc. If you can't flex your overheads to stay within your cash facilities, then you are risking insolvency.
Sales receipts, payroll and sales tax are the big numbers.