Inflation Accounting A case Study From Jordan This Study deals with accounting data in the Jordan Electricity Authority which applies the traditional system of accounting. It evaluates the result of adjusting the historical cost and the effect of inflation on the accounting data. The Study tackles the General Price Level Adjustment Method and the current value accounting method, then adjusts the financial data published by the Authority 1988-1992 according to the index of living cost published by the Jordanian Central Bank. The adjustment was applied on the sales, other revenues, constant assets, the stock, expenditures (excluding consumption), the remaining assets and long term loans. The Study concluded that the monetary assets effectuated in losses for the Authority, while keeping monetary short or long liabilities achieve profits matching with the volume of liabilities. The Study also recommended furthering researches in this field, to improve the Jordanian and Arab financial data, so as to assist in raising the efficiency and appropriateness of the decisions.