Let's say we are the seller and the buyer pays in cash, not by company-to-company remittance. Then our accountant can do the book?

You can do the accounting.

If the receipt of cash, the receiving side of the accounts:

Borrow: cash

Credit: main business income

Note: After receiving the cash payment, you need to promptly re-deposited into the company's account, because of the provisions of the financial settlements: can not sit on the cash.

If the inter-company remittance:

Borrow: Bank Deposit

Credit: Main Business Income

Generally, the starting point for the settlement of transactions is cash 1000 yuan, more than 1,000 yuan of payments should be used in the transfer mode, but the reality is that the main business of the settlement of the receipt of funds to facilitate the main, after all, to receive the payment in a timely manner is the most important. (Such as check settlement, remittance settlement, etc., so that the bank statement to stay printed on the payer's details)