Independent Consultant Net Earnings Estimator

This estimator calculates an independent consultant’s net earnings after operating expenses and a planning tax reserve, then shows the effective earnings per total hour worked. It is designed for reviewing actual or forecast consulting revenue where invoiced revenue alone can overstate what the work contributes to personal cash flow. The calculator is useful for comparing clients, evaluating a retainer, or checking whether a revenue target still works after overhead. Because consultants often spend substantial time on sales, administration, research, and client management, the hourly result uses total hours entered rather than assuming every hour is billable. The tax percentage is a reserve assumption only; actual tax liability requires the rules that apply to the consultant’s filing situation.

Consulting earnings

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$
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hr
Result
Estimated earnings after reserve
Operating profit before reserve
Tax reserve
Effective earnings per hour

1. Enter consulting revenue
Use the revenue for the period you want to evaluate before subtracting operating expenses.

2. Subtract business expenses
Enter expenses attributable to that same period, including both direct project costs and allocated overhead you want included in the analysis.

3. Choose a tax reserve rate
Enter the percentage of positive operating profit you plan to set aside. Replace the default with your own planning assumption.

4. Count total work time
Include billable delivery plus the sales, preparation, administration, and follow-up time required to generate the revenue if you want a full effective hourly result.

5. Compare the outputs
Operating profit shows the business result before the reserve, while earnings after reserve and effective hourly earnings are more useful for personal cash-flow comparisons.

Formula:

Operating profit = Consulting revenue − Business expenses Tax reserve = max(Operating profit, 0) × (Reserve % ÷ 100) Earnings after reserve = Operating profit − Tax reserve Effective earnings per hour = Earnings after reserve ÷ Total hours worked

If operating profit is negative, this calculator sets the planning tax reserve to zero rather than creating a negative reserve.

What the result means

The main result is the estimated business earnings left after entered expenses and the planning tax reserve.

This is not the same as taxable income or a final tax return result.

Given: $18,500 consulting revenue, $3,700 business expenses, a 28% tax reserve, and 135 total hours worked.

Calculation: Operating profit = $18,500 − $3,700 = $14,800. Tax reserve = $14,800 × 0.28 = $4,144. Earnings after reserve = $10,656. Effective earnings per hour = $10,656 ÷ 135 = $78.93/hour.

Result: Estimated earnings after reserve are $10,656, equal to about $78.93 per total hour worked.

Which expenses should I include?

Include the operating costs you want the period to bear, such as software, insurance, subcontractors, travel, workspace, professional services, and other relevant business expenses.

Should I use billable hours or total hours?

Use total hours if the goal is to understand the true time return from consulting, including non-billable work required to win and serve clients.

What if operating profit is negative?

The calculator shows the loss and sets the tax reserve to zero. It does not determine whether that loss has any tax benefit.

Can this be used for a single client engagement?

Yes. Limit revenue, expenses, and hours to that engagement to estimate its standalone economics.

How is this different from a required rate estimator?

A net earnings estimator evaluates revenue you already expect or received. A required rate estimator works backward from an income goal to determine the rate you would need to charge.