Is there somewhere information on how to correctly arrange the service work?

Question

Work organization

Hello everyone
I made a test pet service, which suddenly went to people. The problem is that before I worked either "by barter" or exclusively by agency agreement. And here you need to legally accept payments from individuals and legal entities on the site. How to do it right (what tools, services to use), and how to minimize the closing documents that clients will require from me.

Answer 1

Just IP.
Payment account.
Accounts -> Acts on them
That's all))
To accept money from physicists without cash registers, now you can't do it.

Answer 2

Again, not a specialized resource for such questions, contact your accountant, he will tell you some subtle points.