I want to pay an assistant without hiring him/her as an employee but rather pay vs. an invoice as an external independent consultant.

What I need to know:
 
1) How difficult it is for a chinese (With B.A degree for that matter) to issue invoices as an independent consultant

2) How much tax will he/she pay for a 6000 RMB monthly income.

3) How much will they pay (minimum) should they choose to buy medical insurance and/or social security coverage.

 ...

Hahahahaha ... I think otherwise ... it is just that this person has to be part of a registered company in order to give "tax invoice" ... I think that's what the question meant ...  

From where I sit, the question is more like how much would it cost a person to become an outsource of another company for doing some work ...

My guess is that BedT has a friend who can work for her (or her boss etc), but for some reason, it will not be a employer-employee relationship, so "outsource" (or vendor) is one, or even only, option?  

 ...

(continued) ... but who is to say that, an individual cannot form a registered company? Though, I cannot imagine whether 6000 is worth all that trouble ...

BedT ... if you want your "questions" answered, you might want to explain a bit more first?

1. it's part time, only 3-4 hours a day

2. i am asking what is the procedure for a chinese individual to form a consulting company then issue invoices

just for my boss, thank you guys

 and i didn't mention that actually the deal is in Shenzhen, he says it's hard to find somebody who is already a indepedent consultant who works for certain company and speaks good English, so he wonders how to create one, hah

thank you

 he doesn't wanna do anything illegal, for example, buying invoices from vendors, or avoid to pay tax or employees benefits.............but i agree with what u guys said