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Do I need to keep paper records for my business?
Scanned or electronic copies of invoices should be sufficient as long as they are accurate and you can deliver them during an audit. Also, if you have an accountant prepare your taxes you would either need to provide them a copy of the invoices or a summary of them with the corresponding amounts to be claimed. Personally I prefer to print out a paper copy and file that away with that quarter's and year's other tax documents. I do my own taxes and find paper copies handy as I can go through each invoice/receipt and make sure I have entered its information by ticking it. I find that when handling a large number of documents that paper copies are more easy to handle than electronic ones. In the end you will need to use a system that you feel comfortable with and are able to use effectively.