What do you need to know / do to register an IP for a small online store?

Question

Individual entrepreneur

Good afternoon.
At the end of last year, I launched an online store, at first just to find out if the goods sold were needed / popular in our market. The answer actually received: needed and popular.
In view of this, the question arises, it is necessary to somehow legalize all this activity.

1. Registration of IP is required (I read that it is possible to simplify with 6 percent on all revenue, because I can’t formalize expenses normally and therefore I can’t tax profit)
   
2. It is required to open a bank account (It’s a completely dense forest here, it’s not clear what is where and how? The only bank that I know is Sberbank and it would probably be convenient to work with it)
   
3. Having an IP and R / S, we can connect Yandex.Checkout , and this is where the fun begins.
   
4. Reporting to the tax authorities, this is the place that confuses me the most. The question is not that I don't want to share, the question is how to share?
   

I will be grateful if you help with each of these points :) Thank you very much!
PS
The store will work only with Yandex.Checkout and only with cash upon delivery in Moscow.
The store is powered by Merchium , which offers integration with Yandex.Checkout out of the box.

Answer 1

Well, since you started making money, hire a tax officer from former employees of your own tax office, he will explain everything to you on his fingers, they often open offices next to the tax office.

Answer 2

www.gosuslugi.ru

Answer 3

I know, off topic, but I recommend thinking OOO. Read about the benefits.

Answer 4

In addition to Polkovnik Brumel. You can also use the SKB-Kontur service, it is easy to use and if you make an electronic signature, you can completely forget about trips to the tax office.
In "MyDelo" it is possible that this has also been implemented, I have not looked at their website for a long time.