Please follow the below steps to post interest to the client account on a matter ledger.
From the FD home screen, select Client Postings.
Select General Postings.
Select the posting type CIN (Client Interest).
Complete the remaining fields, then select Add to Batch.
Select Post Batch.
The posting will debit your client interest firm nominal and credit the matters ledgers client account.
There will be items to reconcile on both your Office and Client account bank reconciliations. Please be mindful to move this money physically at your bank.