# NOPAT Calculator – Net Operating Profit After Tax

URL: https://speedycalculator.com/calculators/finance/nopat/
Last updated: 2026-10-25

> The NOPAT calculator works out a company's net operating profit after tax – its operating profit (EBIT) taxed as if it had no debt – the starting point for ROIC, EVA and free cash flow.

## Inputs

- Operating profit (EBIT)
- Tax rate (%)

## Results

- NOPAT
- Operating taxes

## Formula

```
NOPAT = operating profit (EBIT) × (1 − tax rate)
```

## Explanation

NOPAT removes the effect of financing choices, so companies with different amounts of debt can be compared on their operating performance alone.

### How to use the NOPAT Calculator – Net Operating Profit After Tax

- **Operating profit (EBIT)**
- **Tax rate**

Results update as you type, and every field accepts the units shown in its menu.

### How it works

Enter operating profit (EBIT) and the tax rate.

### Tips

- Use the nominal annual rate and pick the compounding frequency your bank or broker states.
- Small differences in return or fees compound into large differences over decades.
- Run the calculation with a cautious, a central and an optimistic return to see the range of outcomes.
- Past returns do not guarantee future returns – nothing here is investment advice.

### Common mistakes to avoid

- Comparing an APR with an APY or effective rate.
- Ignoring inflation, taxes and fees when judging a real return.
- Entering a percentage as a decimal (5 instead of 0.05 is correct here).

### Inputs explained

FieldWhat to enterOperating profit (EBIT)Amount in your currencyTax rateIn %

### What each result means

- **NOPAT** = [Operating profit (EBIT)]×(1 - [Tax rate]÷100)
- **Operating taxes** = [Operating profit (EBIT)]×[Tax rate]÷100

### Example values

How the main result changes when **Operating profit** changes and everything else stays at the example values above:

Operating profit (EBIT)NOPAT2,000,0001,580,0003,000,0002,370,0004,000,0003,160,0005,000,0003,950,0006,000,0004,740,0008,000,0006,320,000

## Worked example

Inputs — Operating profit (EBIT): $4,000,000; Tax rate: 21 %.

Results — **NOPAT = $3,160,000.00**; Operating taxes = $840,000.00.

## FAQ

**What is NOPAT?**
Operating profit after tax, ignoring interest expense.

**Why ignore interest?**
So the measure reflects operations, not how the company is financed.

**How is NOPAT used?**
In ROIC, EVA and free cash flow to the firm.

**What formula does the NOPAT Calculator – Net Operating Profit After Tax use?**
NOPAT = operating profit (EBIT) × (1 − tax rate).


## Sources

- [Corporate Finance Institute – financial ratios](https://corporatefinanceinstitute.com/)