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Overhead in business generally refers to costs that support operations rather than being directly assigned to one job or unit under the chosen cost approach. A service business may need software, workspace, insurance and administration even when no particular client is billed for them. The SBA encourages understanding financial costs. Distinguish the management-planning classification from tax treatment, which needs its own applicable guidance.
Choose a consistent direct-cost boundary
Identify which costs can reasonably be connected to a particular project and which support the wider operation. A specialist hired solely for one engagement may be direct, while shared office costs may be overhead. The classification depends on the business and costing method. Write definitions instead of switching categories whenever one makes a project look more profitable.
Allocate overhead for a useful decision
Choose a defensible allocation basis such as relevant working hours or another measure appropriate to the business. Explain what is included and the period. A simple management allocation can help compare jobs, but it is not an exact physical measurement of each client’s use of every resource. Avoid false precision when estimates or shared costs are uncertain.
Keep pricing and cash questions separate
Knowing overhead helps assess sustainability, but it does not determine the price a customer will accept. Consider direct costs, capacity, risk and the offer’s value. Cash payments may also differ from expense recognition. Consult the accountant on formal classification and tax treatment rather than assuming the overhead label resolves all financial questions.
A practical checklist
- Define direct and shared costs consistently.
- State the period and included overhead.
- Choose and explain an allocation basis.
- Review price and capacity separately.
- Reconcile planning assumptions with actual records.
Worked example
Illustrative management allocation: monthly overhead is $1,200 and the assumed relevant billable capacity is 60 hours. The simple allocation is $20 per billable hour. A project using 10 such hours is assigned $200 of overhead under that model. The assumption must be reviewed; it is not a recommended rate or a guaranteed recovery of costs.
Common questions
Is overhead always fixed? No; costs can change with activity or over time. Does an allocation set the selling price? No. Is every shared cost tax-deductible? Do not assume that. Can different allocation methods produce different results? Yes, so explain the method.
What to do next
Review the allocation when capacity, service mix or recurring costs change. Use it to reveal costs that an apparently attractive project might otherwise ignore. Keep the method transparent enough that a future reviewer can reproduce the planning result and understand its limitations.