How to calculate Imputed income when employee is in Supplemental plan

Hello Team,

We have a requirement to calculate the offset value for employees who are enrolled in both the Imputed Income plan and the Supplemental plan. The calculation should be based on the combined total of the Imputed Income (Basic Life) coverage and the Supplemental plan coverage amounts, with both coverages being salary-based. After determining the sum, $50,000 will be deducted, and the applicable rate will be applied to compute the offset value.

Could you please clarify how this calculation is typically handled? Is it managed within the Benefits module or at the Payroll element level? Any insights would be greatly appreciated.