Would be great to understand more about accounting requirements, recurring filings, costs of preparing and filing these and the business tax system in general.

Would be great to understand more about accounting requirements, recurring filings, costs of preparing and filing these and the business tax system in general. Also, are there any other demanding/taxis laws for a company with let's say 4 employees. What about sick leave, what about parental leave? What about if the first hire is underperforming, can you easily get rid of that person etc (important in startups with a handful of employees)? At least in my case, I would want some information regarding that so I could decide if incorporating in France is a good idea, compared to let's say Estonia or the US.