1099-OID PRE-FILING BATCH RECONCILIATION Reporting Year: 2026 Filer/Institution Name: System/Database Extract Date: Prepared By: POPULATION VALIDATION [ ] All reportable lots extracted (including intra-year sales/calls). [ ] Exempt recipients (corporations, IRAs) correctly suppressed. [ ] Short-term OID (<= 1 year) correctly routed to Form 1099-INT. BOX MAPPING & AGGREGATION [ ] Box 1 (Taxable OID) excludes Treasury and tax-exempt OID. [ ] Box 2 (Stated Interest) is segregated from OID calculations. [ ] Box 8 (Treasury OID) accurately captures all Treasury instruments. [ ] Box 11 (Tax-Exempt OID) captures post-2016 covered securities. NET/GROSS CONVENTION CHECK [ ] Acquisition premium convention documented (Net in Box 1/8/11 vs Gross + Box 6). [ ] Bond premium convention documented (Net in Box 2 vs Gross + Box 10). [ ] System output matches the documented institutional convention. ADMINISTRATIVE & WITHHOLDING [ ] Box 4 aggregate ties out to internal backup withholding ledgers. [ ] FATCA filing requirement box checked for applicable accounts. [ ] Account numbers populated for all FATCA or multi-account payees. APPROVAL Exceptions Identified: Resolution/Correction Applied: Approved for IRS Transmission By: Date Approved: