How to order works on Upwork for LLC on USNO?

Question

Upwork

Good afternoon!
We are a small LLC on a simplified system (income - expenses).
We plan to outsource some of the work to Upwork. I really want to reduce the tax base by this amount.
What documents need to be submitted to the tax office in order to reduce the tax? Is the User Agreement and an extract from R\C about the expense sufficient? Or should these costs not be taken into account? Several accountants gave me opposite answers.
I am sure that there are many people here who have already done this, but in the search, questions about the provision of services and the withdrawal of funds mostly come across.
Maybe someone can write an up-to-date list of documents?

Answer 1

I just passed by, but article 232 of the Tax Code of the Russian Federation will not work here?

Answer 2

the same set of documents as for other expenses, but you report on other expenses, so you should know