The incorporation date (or start of operations) represents the first month available in the HISTORICAL DATA menu. When you choose a month and year, Budgeto makes available all the months from that date until the current ongoing calendar month.

For example, if we are in January 2018 and your incorporation (start of operations) date is April 2012, you will have access to all the months from April 2012 till December 2017 (January 2018 is not available yet because the calendar month is not over yet).