Taxes help

Hi, I have a few questions.
I own an online business which generates a large amount of profit a month(about 8-9 grand).
I opened a corporation which was effective on 1/1/05. I have not really been keeping track of receipts etc, but I know how much profit was generated each month. Currently my method of online payment is through Paypal.
My question is, what would I need to pay taxes on, my profit? Also, if I am asked for 'proof', what do I show? My bank statement? Do I have to pay taxes on sales, if so how would I pay taxes on sales if I am not aware how many sales I got that particular month?

Any help would be appreciated.

Thanks.

If you are making $8-9k a month you must hire an Accountant. There's really no ifs, ands, buts about it. After this person chews you out for not keeping good records, s/he will work with you to keep the most money you can legally keep. Talk to other business owners and your contacts in your area for recommendations for a good Accountant.

if you are in the United States - and making more than $1,000 a month, a merchant account is usually cheaper and will provide you your funds a lot quicker.

If you are in the US and need an accountant, you might check out www.scgfs.com

It is beyond me why you do not have an accountant at this point! You are crazy for not recording things and that is going to bite you in the *** if you cannot reconstruct everything.