Tax Guide How to file an IRS 706 tax return for a decedent’s estate If you are an executor of real estate for a relative, friend or anyone else, you’ll have to pay taxes for his/her property after their death. The US government ... Tax Guide Why You Might Need IRS Form 706 A primer on Form 706 for calculating estate taxes. If you are joining us for PDFfiller‘s review of this season’s tax forms, you’re just in time for IRS Form 706. What ...