First, set up general ledger, subsidiary ledger, daily bank account and daily cash account. These can be bought in specialized office supplies stores. Because your company doesn't have financial software, it depends entirely on manual work. So buy a ledger first. And accounting vouchers.

Tell you from the boss and cashier, count the cash belonging to the company as the opening balance of cash. The amount of the bank account statement belonging to the company is used as the opening balance of the bank deposit account. When establishing the opening amount, please count it in front of the boss and cashier, and ask them to sign for confirmation, indicating that the account has been made for you since the beginning of the period.

Then, find out how much each customer owes your company from the start date of your takeover, for example, customer A owes your company 3,000 yuan; Do accounts receivable-Company A owes 3000 yuan at the beginning;

Every account is calculated from this, all accounts are calculated, and then every subsequent occurrence will be debited and credited accordingly. Settle the closing balance every month.

In addition, an enterprise like you may not need to invoice the other party for a lot of income, or you owe money to the other party's customers, and there is no formal invoice for accounts payable, so we must pay attention to the distinction.