The Wisconsin W706 form is an essential document for handling estate taxes in the state, applicable to both resident and nonresident decedents whose date of death falls on or after January 1, 1992. This form serves as the Wisconsin Estate Tax Return and is crucial for reporting the estate's value and calculating the associated tax obligations. Key details required on the W706 include the decedent's personal information, such as their name, date of birth, and Social Security number, along with the address at the time of death. It also asks for information about the surviving spouse and the type of probate proceeding involved. The form guides users through a series of computations to determine the gross value of property in Wisconsin and the total estate value, ultimately leading to the calculation of the Wisconsin estate tax. Additionally, the W706 addresses potential penalties and interest that may apply. A declaration section at the end ensures that the personal representative or preparer affirms the accuracy of the information provided. Completing this form accurately is vital for compliance with state tax laws and for ensuring a smooth estate settlement process.