I have an E postcard that's due for my one small nonprofit. Am I right in thinking that it's due on Friday 4/30? The only reason I ask is that that I was mistaken about gift tax forms being due that day so I thought I would check on nonprofits too. It matters only because the taxpayer in question wants his 1040 in first if the due date for the nonprofit is not Friday. Actually, he'd still like the nonprofit in first but that won't be happening.