IF you just realized you accidentally omitted a HUGE IRA withdrawal on a tax return from 2021, should I immediately file an amended return? Or wait? I actually received a small refund, but by reporting this distribution, I would owe over $35,000. Also, will they add penalties, and interest? Is it best to juts see if it is caught, or go ahead and voluntarily send in an amended return ASAP. I'm nervous on the best way to proceed.