Although receipts can be used to show deductible expenses, we always recommend getting a full invoice. A receipt only shows basic information, so the tax will not be deductible unless you show a full invoice.

Also, if you’re audited, the tax office will pay special attention to any expenses justified by receipts and you’ll need to prove without any doubt that these were necessary and related to the business, rather than personal. For that reason, you really need to submit invoices not receipts for any expenses you have.