Answer:
An overall balance. This might be positive (if the customer owes you money), negative (if you own them money), or at 0 (if all payments have been settled).
A date range. You might create an account statement that covers a specific month, year, or quarter – or you might want to show every single transaction between you and your customer. Either way, the dates should be clear.
Every transaction made within the specified date range, including sales (paid upfront or on credit), payments, and refunds. You should list the date and value of each transaction.
Document numbers to support each transaction. This might include the numbers from invoices, credit notes, or payment receipts.
Contact details for you and your customer – including company name, address, phone number, or email address.
A currency. This is particularly important if you have customers abroad. Even if you have transactions in multiple currencies, an account statement should only be in one.
I hope i helped! xoxo