It depends. If the company hasn't generated revenue yet, then the process is relatively straightforward, and we have an option to work with an attorney to get it done for a fixed $500. https://stripe.com/docs/atlas/next#dissolution

You can probably imagine that closing a company with actual assets / liabilities / pending legal claims / etc can get much, much more complicated. That sort of thing would be solidly "you need to ask a lawyer" level.