378  Using Multiples NOPAT vs. EBITA Analysts and investors often use enterprise value to EBITA instead of NOPAT because there is no need to figure out the operating taxes on EBITA. (Reported taxes are not usually a good predictor of operating taxes, because they in- clude nonoperating items. Therefore, most analysts ignore taxes altogether.) We often use EBITA because it’s common practice and works well when all the companies in the peer group have the same operating tax rate, as when they all operate within a single tax jurisdiction. However, when tax rates are different, NOPAT is a better measure to use. U.S. oil and gas pipeline companies provide a classic example. Until the mid-2010s, many pipeline companies were organized as master limited part- nerships (MLPs), which eliminated an entire layer of taxation compared with pipeline companies organized as regular corporations, called C corporations in the U.S. tax code. Unlike C corporations, MLPs pay no corporate income taxes; rather, investors pay taxes on their share of the profits. Exhibit 18.8 shows that the stock market clearly reflected these tax differences when valu- ing companies in these industries. NOPAT multiples across all the companies are in a narrow range of 19 to 25 times. The EBITA multiples, however, show a clear delineation between the regular corporations and the MLPs. While the EBITA multiples for the MLPs remain the same, at 19 to 25 times, the multiples for regular corporations drop to 13 to 14 times. Clearly, the NOPAT multiples are superior in this case. Exhibit 18.8  Enterprise Value to EBITA vs. Enterprise Value to NOPAT U.S. pipeline companies, June 2013 Atmos Energy Quester Southwest Gas AGL Resources Regular corporations (C corporations) Magellan Midstream Partners ONEOK Partners Williams Partners Plains All American Pipeline Energy Transfer Partners Kinder Morgan Energy Partners Enterprise Products Partners Master limited partnerships (MLPs) 14 13 13 14 20 19 19 20 25 22 19 EV/EBITA 22 20 21 22 20 19 19 20 25 22 19 EV/NOPAT Use net enterprise ValUe diVided by adjUsted ebita or nopat 379 The stock market recognizes differences in tax rates not only for pipe- line companies but across all sectors. The difference between a company’s post- and pretax earnings valuation multiple simply follows from the com- pany’s tax rate. If the stock market correctly refl ects taxation in company valuations, we would expect that for companies with higher tax rates, the difference between their pre- and posttax earnings multiples also would be bigger. This is indeed the pattern that we found when examining the market valuations of the largest U.S. companies between 2013 and 2017 (before the Tax Cuts and Jobs Act of 2017). Exhibit 18.9 shows the average difference in pretax earnings multiples (EV/EBIT) and posttax earnings multiples (P/E) over the fi ve-year period for companies categorized according to their in- come tax rates. As predicted, the difference between the multiples steadily increases with the tax rate that a company pays. Differences in tax rates clearly matter for market valuation. Thus, when companies face different tax rates, they should not be valued at the same EBITA multiple (or any other pretax earnings multiple). This is an important consideration for international comparisons, because corporate tax rates vary widely from country to country. For example, as of 2019, the Irish corporate tax rate is one of the lowest, at 12.5 percent, the U.S. tax rate is at 21.0 percent, and the French tax rate is one of the highest, at 34.4 percent. Because of such variations, companies in the same industry with a different geographic mix of operations can have different tax rates, which must be factored into their valuation using multiples. If the tax rates are differ- ent across peers, use net enterprise value to NOPAT rather than net enterprise value to EBITA. Exhibit 18.9 Difference between Pre- and Posttax Earnings Multiples for U.S. Stock Market 2013–2017, average 17.8 <15 14.8 18.5 15–25 13.7 18.7 25–35 13.5 19.2 >35 EV/EBIT 13.1 P/E Multiple versus EV/EBIT Multiple Effective Income Tax Rate, % P/E Source: S&P CapitaliQ