1. Not all domestic invoices can be included in the cost. Can be recorded in fixed assets or other subjects according to the contents of the invoice and whether it is actual business.
2. Domestic services and commodities are separated, because their business tax rates are different. If you don't separate them, you can, but you have to levy business tax at a high tax rate.
3. "If it is completely cost and there is no profit, there is no need to pay profits tax", which is not comprehensive. It depends on whether your cost is reasonable, whether the cost is real and not arbitrary. Just like entertainment expenses, when calculating the income tax payable, there is a certain deduction ratio (below 654.38, 5‰+0.5 million yuan), and the income tax payable cannot be reduced by overcharging.
There is a lot of room for reasonable tax avoidance. You should be familiar with national laws and regulations and tax knowledge, and operate without breaking the law. After all, tax is the source of national finance.
My own opinion, I smiled.