Texas does not have a state estate tax or inheritance tax. However, Texas residents still must adhere to federal estate tax guidelines.You Need to File an Estate Tax Return. Learn about the role that state tax rules on estates and trust impact estate planning including the use of non-grantor trusts - Texas Estate Planning. For information on values, to file for an exemption, or to report changes in ownership or address, please call the Appraisal District at 210-224-2432. Texan beneficiaries need to be aware that although Texas has no inheritance tax, assets may still be subject to state inheritance taxes. Do states also impose estate taxes? Most states impose estate taxes of some kind. This is another reason it is important to file Form 4810, requesting that the IRS has only 18 months to assess tax. Texas Applications for Tax Exemption.