I use QBO for accountants . I have a new client and she wants me to do her books. 

When I took a look at her books , I saw she has two Nevada State Banks in her bank feeds and she also has one QB Checking Account in her bank feeds. 

If i print a report for this QB Checking Account i see a lot of transactions in there deposits , expenses, fees etc . 

1. Frist question is how do this transactions flow in QB ? Is it through the bank feeds ? I am not sure as I didnt see any transactions in the bank feed under this account that needed to be categorized, or matched ? 

2. Do you reconcile this account ?  If the answer is yes - then where do you find the statement for this account ? I was able to pull a statement for these account as well but to my surprise the statement can't compare to any transaction that actually is inside the QuickBooks Checking account in her books .

Meaning QB checking account in qbo has many transactions which are NOT reflected in the statement that I pull for this checking account ?  

It is my understanding that the client uses the QB checking account to receive payments from her invoices, then the money goes to her Nevada State Bank account ?  So my next question is when do I need to match the invoice with the payment ? Should I match when I reconcile Nevada State Bank , or should I match the invoices with the payments when I see those payments in QB checking account ? 

CAN SOMEONE PLEASE HELP , this is very confusing really . I do have the green quickbooks statements for this Quickbooks Checking Account but the amount of transactions in the statement doesn't match what the client has in her books for this Quickbooks Checking Account . 

Hope some quickbook specialist will have the right answer to my questions . 

Thank you , 

Laura