Accountants Billable Hours Monthly Calculator Examples
Worked examples of monthly billable hours, fee revenue and utilization targets for accounting practices.
These examples show how capacity, billable utilization and average realised hourly rates affect monthly fee revenue. They are planning illustrations rather than forecasts or business advice.
Sole practitioner with a $15,000 target
Monthly capacity and target check for a sole accountant.
Input Summary
Working days
20 days
Hours per day
7.5 hours
Billable utilization
70%
Average hourly rate
$150
Revenue target
$15,000
Calculation Breakdown
- 1Working capacity20 × 7.5150 hours
- 2Billable hours150 × 70%105 hours
- 3Fee revenue105 × $150$15,750
- 4Target utilization($15,000 / $150) / 150 × 10066.7%
Result Summary
Target utilization
66.7%
Accountants Billable Hours Monthly Calculator
The plan produces an estimated $15,750, or $750 above target.
Bookkeeper with lower hourly rate
Lower-rate service mix with part-time monthly capacity.
Input Summary
Working days
16 days
Hours per day
6 hours
Billable utilization
65%
Average hourly rate
$75
Revenue target
$6,000
Calculation Breakdown
- 1Working capacity16 × 696 hours
- 2Billable hours96 × 65%62.4 hours
- 3Fee revenue62.4 × $75$4,680
- 4Target utilization($6,000 / $75) / 96 × 10083.3%
Result Summary
Target utilization
83.3%
Accountants Billable Hours Monthly Calculator
The estimate is $1,320 below the target, and the target requires 83.3% utilization.
Senior accountant during a busy month
High-capacity month with strong billable demand.
Input Summary
Working days
22 days
Hours per day
8 hours
Billable utilization
80%
Average hourly rate
$220
Revenue target
$30,000
Calculation Breakdown
- 1Working capacity22 × 8176 hours
- 2Billable hours176 × 80%140.8 hours
- 3Fee revenue140.8 × $220$30,976
- 4Revenue difference$30,976 - $30,000$976 above target
Result Summary
Revenue difference
$976 above target
Accountants Billable Hours Monthly Calculator
The estimated fee revenue is $30,976, exceeding the target by $976.
Fixed-fee service mix using an effective rate
Monthly planning for mixed bookkeeping and compliance work.
Input Summary
Working days
19 days
Hours per day
7 hours
Billable utilization
60%
Average effective hourly rate
$125
Revenue target
$10,000
Calculation Breakdown
- 1Working capacity19 × 7133 hours
- 2Billable hours133 × 60%79.8 hours
- 3Fee revenue79.8 × $125$9,975
- 4Target hours$10,000 / $12580 hours
Result Summary
Target hours
80 hours
Accountants Billable Hours Monthly Calculator
The estimate is $25 below target; 80 billable hours are needed versus 79.8 planned.
How to Read Your Results
Monthly working capacity is total work time before allowing for non-billable activities.
Estimated billable hours are a planning estimate, not a guarantee that client work will be available or recoverable.
Estimated fee revenue uses the entered average realised rate; it is not the same as invoices issued or cash collected.
Required utilization shows the share of all available work time that must be billable to meet the target.
A positive revenue difference is above target, while a negative difference is below target.
Assumptions & Important Notes
- Rates shown in examples are illustrative and are not market benchmarks.
- Utilization is applied evenly across the month for calculation purposes.
- Examples exclude taxes, expenses, write-offs, collections and changes in client scope.
- Effective rates for fixed-fee work are assumed to be based on expected delivery time.
Related Examples
Frequently Asked Questions
Can I use these examples for a part-time accounting practice?
Yes. Reduce working days or daily hours to reflect the time available in the month.
Why do two practices with the same billable hours have different revenue?
Their average realised hourly rates may differ because of service mix, pricing, discounts, fixed-fee work or recovery.
How can fixed-fee accounting work fit this calculation?
Use an effective hourly rate calculated from expected fees divided by expected delivery hours.
Does estimated revenue include VAT, sales tax or other taxes?
No. The examples treat revenue as the fee amount entered and do not add or subtract taxes.
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