The questions are grouped into sections, each of which corresponds to an option in the main menu. So there is, for example, an option called Earnings in the Family menu corresponding to the section that asks about work and earnings.

When you begin a new case, the program asks all the relevant questions, in every section, the first time round. The case is not complete until all the questions have been answered and the main menu is displayed once more.

While answering questions, you can move back by clicking the Back button, or by keying Alt-B. If you are at the start of a section this moves back to the previous section, otherwise it moves back to the start of the current section. This facility is handy for correcting mistakes that you may make when replying to questions.

Keying F1 while answering a question displays help information relating to the question, which gives an explanation of the meaning of terms used.

When all the questions are answered, the program performs the appropriate calculations and displays the results in the result box located just below the centre of the screen.

For details of the calculations, select the required option in the Output menu. This opens a report screen in a web browser.

The main menu permits amendment of information entered previously. If you select a menu option then the corresponding questions are asked again, the results re-calculated automatically, and updated in the result box. Again, this is handy for correcting mistakes - but it also allows you to change details of the case circumstances in a 'what if' fashion.

When you change an answer, the program may ask additional questions that have now become relevant.

Cases can be saved for recall or amendment at a later date - the Save and Load options in are described in the Case menu topic.