The IRS recently disallowed a charitable donation, because the donor was missing just a few simple words. And it turns out a lot of donors are making the exact same mistake. In this video I'll walk through the mistake a widow made that cost her a $464,000 tax deduction because her tax paperwork lacked a few key words and tell you how to avoid the same mistake. We'll walk through the key things you need to know whether you're contributing $500 or $500,000.00.