The 'Expense adjustment upon the death of a co-client' setting determines the percentage reduction in living expenses that occurs when the first client passes away within a joint plan. By default, the expense adjustment is set to 15%. You can adjust this setting at the individual client level within the Gear Icon > Settings > Other Assumptions tab:
The expense adjustment will only impact pre-retirement living expenses and retirement living expenses within the plan. Other expenses and goals will not be affected. This setting will have an impact on all of the future-looking projections in RightCapital, including the Retirement Analysis, the Life Insurance Analysis, and the Estate Analysis.
To adjust this same setting at a global level, you can navigate to your Advisor Portal and click into the "..." More Menu > Assumptions > Misc tab: