Only invoices work for tax deductions?

[Mary Jay]

Is it true that if I wanted to write off an expense I have to have an invoice?

I’ve always used the receipts that the handymen give me or my bank statements.

Someone told me that the irs won’t accept that as a documentation because it has to be an invoice. Is it true? 

[Natalie Kolodij]

Just to elaborate on what other pros noted

You don't technically need either for something to be deductible 

But if Audited- you have to prove: 

- Something what was necessarily business epense

-You paid that  expense 

Of the two I'd almost say Invoice > receipt. 

A receipt shows payment but you can also get that from your bank/credit card statement. 

An invoice shows what you bought - you can't get that anywhere else (depenidng on the company).