I have restaurant owner client who will not give me the company bank statements to reconcile, capture deductions and complete taxes. Last year on last day of tax deadline for S-Corporations they were emailing me deductions because the bottom line I had did not include all expenses because I was unaware of them. I filed the return and had to do an amendment. (They were piece mailing me deductions up to 9pm) I file the sales/meals tax every month and know the revenue. I am given receipts every month and it is very tedious to go through them all, not to mention error rate. How do I get the client to understand the importance of me having them to capture all deductions and if they don't then what do I do? The client has revenue over $600k.