Tax Guide IRS Form 941X: When Your Business Needs a Redo Use IRS Form 941X when you didn’t quite get it right the first time! IRS Form 941X is one of those forms in PDFfiller‘s tax season review that most ... Tax Guide Form 941X, Adjustments to Quarterly Federal Tax Return We all make a few mistakes every now and then. If you’re a business owner, then you likely have to send the IRS a Form 941 each quarter to ...