Indirect costs are costs that are not directly accountable to a cost object (such as a particular project, facility, function or product). Indirect costs may be either fixed or variable. Indirect costs include administration, personnel and security costs. These are those costs which are not directly related to production. Some indirect costs may be overhead. But some overhead costs can be directly attributed to a project and are direct costs.
There are two types of indirect costs. One are the fixed indirect costs which contains activities or costs that are fixed for a particular project or company like transportation of labor to the working site, building temporary roads, etc. The other are recurring indirect costs which contains activities that repeat for a particular company like maintenance of records or payment of salaries.
Indirect vs direct costs
Most cost estimates are broken down into direct costs and indirect costs.
Direct costs are directly attributable to the object. In construction, the costs of materials, labor, equipment, etc, and all directly involved efforts or expenses for the cost object are direct costs. In manufacturing or other non-construction industries the portion of operating costs that is directly assignable to a specific product or process is a direct cost. Direct costs are those for activities or services that benefit specific projects, for example salaries for project staff and materials required for a particular project. Because these activities are easily traced to projects, their costs are usually charged to projects on an item-by-item basis.
Indirect costs are not directly attributable to a cost object. Indirect costs are typically allocated to a cost object on some basis. In construction, all costs which are required for completion of the installation, but are not directly attributable to the cost object are indirect, such as overhead. In manufacturing, costs not directly assignable to the end product or process are indirect. These may be costs for management, insurance, taxes, or maintenance, for example. Indirect costs are those for activities or services that benefit more than one project. Their precise benefits to a specific project are often difficult or impossible to trace. For example, it may be difficult to determine precisely how the activities of the director of an organization benefit a specific project. Indirect costs do not vary substantially within certain production volumes or other indicators of activity, and so they may sometimes be considered to be fixed costs.
It is possible to justify the handling of almost any kind of cost as either direct or indirect. Labor costs, for example, can be indirect, as in the case of maintenance personnel and executive officers; or they can be direct, as in the case of project staff members. Similarly, materials such as miscellaneous supplies purchased in bulk—pencils, pens, paper—are typically handled as indirect costs, while materials required for specific projects are charged as direct costs.
Costs usually charged directly
- Project staff
- Project supplies
- Directors Salary
Costs either charged directly or allocated indirectly
Costs usually allocated indirectly
- Audit and legal
- Administrative staff
- Equipment rental
- Bill expense
- Apportion of sales cost
- Business travel expenditure
- Standard AACE International Recommended Practice No. 10S-90 COST ENGINEERING TERMINOLOGY TCM Framework: General Reference, Association for the Advancement of Cost Engineering International, 2010, Pg 35
- Standard AACE International Recommended Practice No. 10S-90 COST ENGINEERING TERMINOLOGY TCM Framework: General Reference, Association for the Advancement of Cost Engineering International, 2010, Pg 49