How does ProbateCalc work ? See our Quick Visual Guide here. Is my data safe ? The information you enter on the ProbateCalc worksheet is stored on your own computer. It is your information and the responsibility to save and secure it rests with you. We do not store any information you enter on the forms other than your User ID, Password and Access Code in order to identify you on our system. See our full Privacy Statement here. What software do I need ? To use ProbateCalc you will need Adobe Reader version X or XI. Earlier versions already installed on your computer may not work correctly. This is a FREE download available at http://www.adobe.com/products/reader.html What equipment do I need ? Apart from the computer you are using to read this page you will also need a printer, or access to one, to be able to print the Inheritance Tax form IHT205 which is generated by ProbateCalc. What else do I need for probate ? You will also need to complete the Probate Application form (PA1) which can be downloaded from the the HM Courts (Justice) website here http://hmctsformfinder.justice.gov.uk/HMCTS/GetForm.do?court_forms_id=735