OID TRANSFER INTAKE AND REPORTING CHECKLIST Tax Year: Client Account Number: Security CUSIP/Identifier: 1. TRANSFER TIMELINE VALIDATION [ ] Date position removed from outgoing broker: [ ] Date position received by incoming broker: [ ] Overlap check: Ensure no duplicate days in holding periods. 2. METADATA INTAKE (RECEIVING BROKER) [ ] Transfer file processed successfully. [ ] Original acquisition date recorded: [ ] Original cost basis and prior adjustments loaded. [ ] Covered security status validated based on acquisition date. 3. TAX CALCULATION PARAMETERS [ ] Partial year OID accrual calculated (Box 1 / Box 8). [ ] Periodic interest (Box 2) verified against record dates. [ ] Acquisition premium amortization calculated for covered period (Box 6). [ ] Bond premium amortization allocated to stated interest (Box 10). 4. EXCEPTION HANDLING [ ] Missing lot history identified. [ ] Manual source-record request sent to outgoing broker. [ ] Corrected 1099-OID scheduled if metadata arrived post-issuance. Reviewer Initial: Date Completed: