Q - What is the 15 year Gilt Rate in Default Inflation/Growth Rates used for in Voyant?
A - This setting is really a holdover from the days prior to pension flexi-drawdown. However, if you do choose to schedule a pension drawdown based on a percentage of GAD, and some clients may still be on such a schedule, then the 15-year gilt rate setting, taken from 'Plan Preferences', is still used for GAD table look-ups.
Plan Preferences vs. System Preferences
Changes to this setting on the mirror Default Inflation / Growth Rates panel in System Preferences, on the left side of the screen, will be used only going forward, as you create new client cases. System Preferences are used as a template only for new client cases. Changes to System Preferences will not retroactively affect your existing client cases.
If you want to change this preference in any existing client cases, you will need to open and edit them individually, in each case's Plan Preferences.