About the NOPAT Calculator
Net operating profit after tax is EBIT x (1 - tax rate). It deliberately ignores interest, which makes it the profit a company would report if it carried no debt at all. That neutrality is the point: two firms running identical operations but funded differently produce the same NOPAT, so their operating performance can be compared without the capital structure getting in the way.
The tax rate should be the effective rate, calculated as the tax charge divided by pre tax profit in the accounts, rather than the statutory rate the tax code prints. Credits, allowances and overseas earnings usually pull the real rate well below the headline. If EBIT is negative the calculator charges no tax, because an operating loss does not create a liability in the period it occurs.
NOPAT is a building block rather than an end in itself. Subtract a capital charge from it and you have economic value added. Add back depreciation, subtract capital spending and the movement in working capital and you have free cash flow to the firm, the number discounted in most valuation models. The optional revenue field turns the answer into a NOPAT margin, which is a cleaner trend line than net margin because it is not disturbed by refinancing. Continue into the Economic Value Added Calculator to include the cost of capital.
How to use
- Enter EBIT, the profit before interest and tax.
- Set the effective tax rate taken from the tax charge over pre tax profit.
- Add revenue if you want a NOPAT margin, or leave it at zero.
- Carry the NOPAT figure into an EVA or discounted cash flow model.
Common questions
- Why ignore interest?
- Interest reflects how the business is financed, not how well it operates. Leaving it out lets you compare firms with different debt levels.
- Which tax rate should I use?
- The effective rate from the accounts. It captures credits and allowances that the statutory rate misses.
- Is NOPAT the same as EBIAT?
- They are the same measure. Earnings before interest after tax is simply another name used in some textbooks.
- What if EBIT is a loss?
- No tax is applied, so NOPAT equals the loss. Real relief usually arrives later through carried forward losses.