The historical cost of an asset at the time it is acquired or created is the value of the costs incurred in acquiring or creating the asset, comprising the consideration paid to acquire or create the asset plus transaction costs.[1] Historical cost accounting involves reporting assets and liabilities at their historical costs, which are not updated for changes in the items' values. Consequently, the amounts reported for these balance sheet items often differ from their current economic or market values.
While use of historical cost measurement is criticised for its lack of timely reporting of value changes, it remains in use in most accounting systems during periods of low and high inflation and deflation. During hyperinflation, International Financial Reporting Standards (IFRS) require financial capital maintenance in units of constant purchasing power in terms of the monthly CPI as set out in IAS 29, Financial Reporting in Hyperinflationary Economies. Various adjustments to historical cost are used, many of which require the use of management judgment and may be difficult to verify. The trend in most accounting standards is towards more timely reflection of the fair or market value of some assets and liabilities, although the historical cost principle remains in use. Many accounting standards require disclosure of current values for certain assets and liabilities in the footnotes to the financial statements instead of reporting them on the balance sheet.
For some types of assets with readily available market values, standards require that the carrying value of an asset (or liability) be updated to the market price or some other estimate of value that approximates current value (fair value, also fair market value). Accounting standards vary as to how the resultant change in value of an asset or liability is recorded; it may be included in income or as a direct change to shareholders' equity.
The capital maintenance in units of constant purchasing power model is an International Accounting Standards Board approved alternative basic accounting model to the traditional historical cost accounting model.
The IASB's Framework introduced Capital Maintenance in Units of Constant Purchasing Power as an alternative to Historical Cost Accounting in 1989 in Par. 104 (a) where it states that financial capital maintenance can be measured in either nominal monetary units - the traditional HCA model - or in units of constant purchasing power at all levels of inflation and deflation: the CMUCPP model.[11]
The specific choice of measuring financial capital maintenance in units of constant purchasing power (the CMUCPP model) at all levels of inflation and deflation as contained in the Framework for the Preparation and Presentation of Financial Statements, was approved by the International Accounting Standards Board's predecessor body, the International Accounting Standards Committee Board, in April 1989 for publication in July 1989 and adopted by the IASB in April 2001.
"In the absence of a Standard or an Interpretation that specifically applies to a transaction, management must use its judgement in developing and applying an accounting policy that results in information that is relevant and reliable. In making that judgement, IAS 8.11 requires management to consider the definitions, recognition criteria, and measurement concepts for assets, liabilities, income, and expenses in the Framework. This elevation of the importance of the Framework was added in the 2003 revisions to IAS 8."
[12]
IAS8, 11:
"In making the judgement, management shall refer to, and consider the applicability of, the following sources in descending order:
(a) the requirements and guidance in Standards and Interpretations dealing with similar and related issues; and
(b) the definitions, recognition criteria and measurement concepts for assets, liabilities, income and expenses in the Framework."
There is no applicable International Financial Reporting Standard or Interpretation regarding the valuation of constant real value non-monetary items, e.g. issued share capital, retained earnings, capital reserves, all other items in Shareholders Equity, trade debtors, trade creditors, deferred tax assets and liabilities, taxes payable and receivable, all other non-monetary receivables and payables, Profit and Loss account items such as salaries, wages, rents, etc. The Framework is thus applicable.
The CMUCPP model is chosen by hardly any accountant in non-hyperinflationary economies even though it would automatically maintain the real value of constant real value non-monetary items, e.g. issued share capital, retained income, other shareholder equity items, trade debtors, trade creditors, etc., constant for an unlimited period of time in all entities that at least in real value at all levels of inflation and deflation - all else being equal. This is because the CMUCPP model is generally viewed by accountants as a 1970s failed inflation accounting model that requires all non-monetary items - variable real value non-monetary items and constant real value non-monetary items - to be inflation-adjusted by means of the Consumer Price Index.
The IASB did not approve CMUCPP in 1989 as an inflation accounting model. CMUCPP by measuring financial capital maintenance in units of constant purchasing power incorporates an alternative capital concept, financial capital maintenance concept and profit determination concept to the Historical Cost capital concept, financial capital maintenance concept and profit determination concept. CMUCPP requires all constant real value non-monetary items, e.g. issued share capital, retained income, all other items in Shareholders Equity, trade debtors, trade creditors, deferred tax assets and liabilities, taxes payable and receivable, all items in the profit and loss account, etc. to be valued in units of constant purchasing power on a daily basis. Variable real value non-monetary items, e.g. property, plant, equipment, listed and unlisted shares, inventory, etc. are valued in terms of IFRS and updated daily.
The IASB requires entities to implement IAS 29 which is a Capital Maintenance in Units of Constant Purchasing Power model during hyperinflation.