An evergreen retainer requires a firm to compare the agreed minimum with the matter’s current trust balance after authorized fee transfers and client activity. A generic request for funds can overstate the replenishment or lose the link to the client ledger.
The goal is not to force every number to zero. It is to explain each movement using the records the business is authorized to use, distinguish timing from a real discrepancy, and put decisions in front of the right reviewer. That makes the work suitable for offshore bookkeeping support: the preparer handles repeatable evidence work while the company retains authority.
Useful background for designing the procedure includes ABA Model Rule 1.15 and ABA client protection resources. These sources do not replace the company’s contracts, accounting policy, or professional advice. Record the version and access date when a changing rule or provider document affects the workflow.