Accrual is important. Mostly because it impacts timing and gives you some levers to adjust to make the financial statements the way you want. Eg depending on your goals, you may want to form a strategy on when to sign a vendor contract.
Financial statements is where it’s at though. And it’s easy to learn from a book. However, what you need to learn, is how this general knowledge fits your company. This is really the difference between good and bad CxOs (and I’ve seen my share of both).
This is a different path. It’s metrics and KPIs. It’s strategy and knowing what’s important for the company. Are you conserving cash, are you growing at all cost, prove you have an ROI on your project, prove you can execute the project as promised, articulate why a project is off the rails (signal risk). A lot of this is financial politics, but if you talk the talk and earn credibility you’ll be seen as has a strong fiduciary over your domain. Also, depending on the size of your company, get a finance guy that reports or has a dotted line to you. If company is too small for that, you can just build a very good relationship with the finance team. I’m my experience, 25%-50% of our job is partnering with other executives; meaning we educate them (comprehension And prep for meetings with other executives/BOD) and we have full scope knowledge of what every other department is doing.
The other thing probably worth studying earlier is HC costing. It’s really easy to understand, but often catches directors/vp in non-finance functions off guard.
Basically, timing matters a lot and people make mistakes when asking “can I afford this?”
Also fairly specific to CTO, learn the area of accounting around capital expenditures. Whether something is an expense or cap ex is very important for CTOs especially since labor can be capex. Every company will have their own accounting rules / interpretation of GAAP that you will have to get familiar with too.
I'd say your company valuation how it's modeled and pitched to investors, etc. is not as important. Very few people see that info outside of Finance and CEO with the BOD.
Agree tho they can start in those areas- and of course just talking across domains is infinitely valuable on its own accord. Cheers.