How to invoice the installation fee?

See if there is any equipment installation item (equipment installation qualification) in your company's business scope. If so, it can be invoiced separately. Equipment invoicing 17% value-added tax, equipment installation business involves business tax and other taxes, and the comprehensive collection rate is about 5.45%. If not, it can only be counted as mixed sales of value-added tax, and the full value-added tax invoice of 17% will be issued, paying more taxes than before.