| Abbreviation | Definition |
|---|---|
| IPR | Internal Purchase Requisition |
| IPS | Interactive Purchasing System |
| IPS | Interim Payment System |
| IPS | Internet Payment Solutions |
| IPS | Internet Payment System |
| IPS | Invoice And Progress Schedule |
| IPSAS | International Public Sector Accounting Standard |
| IPSAS | International Public Sector Accounting Standards |
| IPSAS | International Public Services Accounting Standards |
| IPSASB | International Public Sector Accounting Standards Board |
| IPSP | Internet Payment Service Provider |
| IQF | Insolvency Quality Forum |
| IQPA | Independent Qualified Public Accountant |
| IR | Income Ratio |
| IR | Interest Rate |
| IRA | Individual Retirement Account |
| IRA | Insured Retirement Account |
| IRA | Investment Return Analysis |
| IRB | Internal Ratings Based |
| IRB | Internal Revenue Bulletin |