Blog · Finance metrics and formulas · Finance and FP&A teams
Compare ROIC with a finance-approved WACC on the same annual, after-tax basis. Work two business units from operating profit and capital schedules through percentage-point spreads and dollar capital charges.
A ROIC WACC comparison measures the operating return a business earns against the cost of the capital supporting it. When annual after-tax ROIC exceeds an appropriate approved WACC, the return spread is positive. Calculate that spread and its dollar equivalent before deciding which units deserve closer attention.
ROIC is an operating performance measure. It divides net operating profit after tax, or NOPAT, by invested capital. The return on invested capital guide explains the numerator, capital classifications, and averaging choices in detail.
WACC is a financing hurdle. It combines the cost of equity and after-tax cost of debt using financing weights; it is not the interest rate on the company's latest loan. Damodaran's financial definitions describe both WACC and the excess-return comparison with ROIC.
| Question | ROIC | WACC |
|---|---|---|
| What it measures | Operating return earned on invested capital | Required financing return for the relevant risk |
| Main inputs | Operating profit, operating taxes, invested capital | Finance-approved capital-cost assumptions |
| Typical reporting form | Annual percentage | Annual percentage |
| What changes it | Profitability and operating capital | Approved financing and risk assumptions |
| Owner | Finance, with operating unit input | Treasury or the finance leader responsible for the hurdle |
| Role in the comparison | The earned return | The return the business must cover |
This article uses a supplied WACC. It does not estimate a market cost of capital from uploaded balances. A finance approval is still needed when the period, currency, business scope, or risk changes.
An annual return needs an annual hurdle. The tax basis also needs to match: NOPAT is after operating taxes, so comparing it with an unadjusted pretax borrowing rate answers a different question. Similarly, a corporate hurdle approved for one business is not automatically suitable for a newly acquired operation with different risk.
The denominator convention matters. This example uses opening and closing invested capital averaged together for annual earnings. If an acquisition or major installation occurs late in the year, monthly balances may better represent the capital employed. Document the method rather than selecting the balance that produces the largest return.
Use ROI and ROIC to resolve project return definitions before applying this test. An unannualized cumulative project ROI is not a substitute for annual ROIC.
ROIC = NOPAT / Average invested capital
Return spread = ROIC − Approved WACC
Capital charge = Average invested capital × Approved WACC
Profit above capital charge = NOPAT − Capital charge
The spread is measured in percentage points. The final line is a dollar measure, not another percentage.
Consider two US manufacturing units for the fiscal year ended September 30, 2026. Finance supplies a 25.00% operating tax assumption and approves a 10.00% annual after-tax WACC for both units in this illustration. These are example assumptions, not market estimates or recommended hurdles.
The units have no intercompany balances in this example. Money amounts are USD, and rates are rounded to two decimal places only after calculation.
| Source schedule row | North (USD) | South (USD) |
|---|---|---|
| Annual operating profit | 1,600,000 | 1,200,000 |
| Opening invested capital | 7,000,000 | 11,000,000 |
| Closing invested capital | 9,000,000 | 13,000,000 |
Run each row through the operating return and capital-cost calculation:
| Calculation | North | South |
|---|---|---|
| Operating tax (USD): operating profit × 25.00% | 400,000 | 300,000 |
| NOPAT (USD): operating profit − tax | 1,200,000 | 900,000 |
| Average capital (USD): (opening + closing) / 2 | 8,000,000 | 12,000,000 |
| ROIC: NOPAT / average capital | 15.00% | 7.50% |
| Approved annual WACC | 10.00% | 10.00% |
| ROIC − WACC, percentage points | 5.00 | −2.50 |
| Capital charge (USD): average capital × WACC | 800,000 | 1,200,000 |
| NOPAT − capital charge (USD) | 400,000 | −300,000 |
North earns $400,000 above its annual capital charge. South reports positive NOPAT of $900,000 but falls $300,000 short of the return required on its larger capital base. That is the difference between making an accounting profit and covering the approved cost of capital.
First, tie operating profit to the unit income statements and opening and closing capital to the approved capital schedules. Reconcile any adjustments, including goodwill, leases, or nonoperating assets, before calculating the comparison. The invested capital guide covers the underlying classifications.
Then prove the dollar result through both routes:
| Check | Calculation | Result (USD) |
|---|---|---|
| North, spread route | (15.00% − 10.00%) × 8,000,000 | 400,000 |
| North, profit route | 1,200,000 − 800,000 | 400,000 |
| South, spread route | (7.50% − 10.00%) × 12,000,000 | −300,000 |
| South, profit route | 900,000 − 1,200,000 | −300,000 |
The two routes agree because they use identical capital and period conventions. Damodaran's EVA lecture expresses this relationship as the return spread multiplied by invested capital. For the distinction between a dollar economic-profit measure and a percentage return, see EVA versus ROIC.
Across these two units, NOPAT is 1,200,000 + 900,000 = $2,100,000 and average capital is 8,000,000 + 12,000,000 = $20,000,000. Combined ROIC is 2,100,000 / 20,000,000 = 10.50%, and the capital charge is 20,000,000 × 10.00% = $2,000,000. The $100,000 excess equals 400,000 − 300,000, reconciling the unit results.
North's positive spread supports a discussion about capital productivity. It does not prove that more investment will earn the same return. Review the expected earnings and additional capital of the next proposal separately.
South needs an operating and capital review. At the same capital base and hurdle, annual NOPAT must increase by 1,200,000 − 900,000 = $300,000 to cover the charge. Finance and operations can then examine margins, idle capacity, inventory, and receivables rather than treating the ratio as a verdict to close the unit.
Show an assumption change separately from an operating change. If finance supplies a revised WACC, keep the original operating rows fixed while assessing that scenario. Otherwise, a changing hurdle can look like changing performance. Give the finance owner the assumption version and effective date alongside the result.
Upload operating earnings and capital schedules with the WACC assumptions approved by your finance team; Covirage maps the columns, and its tools compute and check the figures. The external AI model explains the spreads and capital charges with every figure traced to its rows. Create a free Covirage account and bring a sample of your own data.
See FP&A reporting with Covirage for the supporting reporting context.
Subtracting WACC from ROIC gives a spread in percentage points. Multiplying the unrounded decimal spread by the same invested capital used in ROIC gives the dollar operating profit above or below the capital charge. Keep the rate spread and dollar result labeled separately.
Yes. Positive operating profit can be insufficient relative to the amount of capital the business needs. The business may cover its accounting expenses while earning less than the approved capital cost. Review capital intensity, margin, utilization, and investment timing before deciding what to change.
Only when finance considers the shared assumption appropriate for their risks and funding basis. A common corporate rate can simplify reporting, but materially different businesses may need separately approved assumptions. Record the owner, effective date, and scope rather than inventing a unit rate from the ledger.
Only after checking the return definition, annualization, taxes, timing, and risk. A simple multiyear ROI is not an annual operating return. Project evaluation should consider the timing of cash flows and the approved hurdle rather than subtracting WACC from an unmatched percentage.