| Abbreviation | Definition |
|---|---|
| IAPS | International Auditing Practice Statement |
| IAS | International Accounting Standard |
| IAS | International Accounting Standards |
| IASA | Insurance Accounting and Systems Association |
| IASB | International Accounting Standards Board |
| IASB | Israel Accounting Standards Board |
| IASCA | International Arab Society of Certified Accountants |
| IASCF | International Accounting Standards Committee Foundation |
| IAWG | Industry Accounting Working Group |
| IBAN | International Bank Account Number |
| IBAS | Institute of Business and Accounting Studies |
| IBC | Institute of Business Consulting |
| IBFC | Income Before Fixed Charges |
| IBFT | Inter-Bank Fund Transfer |
| IBIT | Inter Branch Item-in-Transit |
| IBLC | In Bond Landed Cost |
| IBNR | Incurred But Not Reported |
| IBS | Internet Banking System |
| IC | Incentive Compensation |
| IC | Internal Control |