If not, then look for the following : [substeps] Bank statements gross receipts for sales of goods and services sales records proof of returns and allowances interest for business checking and savings accounts any other small business income [title] Match purchase orders with invoices. [step] Go through your paperwork and find all the invoices you sent out for the year.
[header] How to do year end tax prep for your small business [title] Find proof of your business income. [step] You must accurately report your small business income, so diligently find all proof of income. Hopefully, you are organized and have this information in an excel sheet.