What documents do you need to close a transaction before the tax?

Question

Law in IT

I have an individual entrepreneur, now we have closed a deal with a customer and I will introduce this, I have a question, besides the contract, what documents, acts do I still need so that there would be no problems with the tax? And also the act of work performed and the act of rendering services are different documents, are they needed?

Answer 1

You need the acts so that there are no claims from the client.
Whether the work performed or the services rendered depends on how exactly your contract was formulated. There are contracts for the performance of work, and there are contracts for the provision of services. https://habr.com/en/company/it-lex/blog/289598/
Personally, I use an offer where it is written that the fact of payment is equivalent to signing an act - it allows you to do without papers at all.