Can I deduct expenses that I do not have written proof for?

[MargaretL · Accepted solution]

No, you cannot deduct them, unfortunately.  Per IRS, you must have substantiation documentation and  recordkeeping for your deductions, or any expenses that you claim.

Note: The written proof doesn't include only receipts... checks, credit card statements showing payment for your expenses is sufficient proof. Otherwise, expenses may not be deductible.