Accountants Overhead Cost (Daily) Calculator FAQ
Answers to common questions about accountancy practice overhead, billable capacity, utilisation and daily cost estimates.
Use these answers to understand the inputs and results of a daily accountancy practice overhead calculation. The calculator provides estimates for planning context, not professional advice.
General questions
What the calculator estimates and how it can be used.
What does the calculator estimate?
It estimates total annual overhead, overhead per operating day, annual billable accountant-days and overhead per billable accountant-day.
Who can use this calculator?
It is designed for accountancy practices, from sole practitioners to multi-person firms.
Is daily overhead the same as a daily charge-out rate?
No. Daily overhead is only one cost component and is not a client price.
Costs to include
How to classify practice expenses for the calculation.
What can be included in monthly premises costs?
Examples include rent, utilities, cleaning and other regular costs of maintaining premises.
What can be included in monthly operating costs?
Examples include software, subscriptions, administration, marketing and regular non-premises expenses.
What belongs in annual fixed costs?
Examples include insurance, professional fees, training, equipment and other yearly overheads.
Capacity and utilisation
How working days and billable time affect the estimate.
How should I choose working days per year?
Use normal operating days after weekends, public holidays and planned closures have been excluded.
What does billable utilisation mean?
It is the proportion of working time expected to be chargeable to clients after non-billable activity.
Should partners be counted as billable accountants?
Count them if they deliver client-chargeable work and include their capacity in the utilisation assumption.
Accuracy and use
Factors that may cause results to differ from actual performance.
How often should I update the inputs?
Review them when material expenses, staffing, working patterns or utilisation expectations change.
Does the calculator include profit?
No. The calculated figures are overhead estimates and do not add a profit target.
Can I include non-billable staff costs?
They can be included in operating expenses if the practice wants the overhead calculation to recover them.
What is overhead per billable accountant-day?
It is annual overhead divided by estimated annual chargeable capacity across the billable team.
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