Converting Operating Taxes to Operating Cash Taxes  419 We treat the remaining adjustments in Exhibit 20.5 as nonoperating. These include one-time taxes related to the reduction in the U.S. tax rate, the disposi- tion in Brazil, and repatriation of past earnings. Because they are nonoperat- ing, they do not factor into the calculation of operating taxes and the operating tax rate in Exhibit 20.6. On an aggregate basis, the three adjustments included in Exhibit 20.6 lower statutory taxes on EBITA by 1.4 percentage points in 2018. Multiplying this percentage by earnings before taxes gives us a negative adjustment of $160 million, resulting in operating taxes of $4,451 million. Dividing the amount of operating taxes by EBITA of $21,957 million leads to an operating tax rate of 20.3 percent in 2018, slightly below the statutory rate of 21 percent. Converting Operating Taxes to Operating Cash Taxes In the previous section, we estimated operating taxes on an accrual basis. For most companies, especially growing companies, the taxes reported on the income statement will not reflect the actual cash taxes paid, because of differences in accounting rules versus tax rules. For instance, tax rules allow for accelerated depreciation of physical assets, whereas financial accounting typically uses straight-line depreciation. With higher expenses and lower pre- tax profits on its tax books, companies can significantly delay or perhaps even perpetually postpone paying accrual-based taxes. For companies that con- sistently defer or prepay taxes, we recommend using cash-based operating taxes, which we call operating cash taxes. (In the case of low-growth compa- nies, deferred-tax accounts may rise and fall unpredictably. If the operating EXHIBIT 20.6  Walmart: Operating Taxes $ million   2016 2017 2018 Statutory tax rate 35.0% 33.8% 21.0% × EBITA 22,764 20,437 21,957 = Statutory taxes on EBITA 7,967 6,908 4,611 U.S. state income taxes 1.7% 1.8% 3.3% Income taxed outside the United States (4.5%) (6.3%) (3.5%) Federal tax credits (0.6%) (0.9%) (1.2%) Other operating taxes (3.4%) (5.4%) (1.4%) × Earnings before taxes (EBT) 20,497 15,123 11,460 = Other operating taxes (697) (817) (160) Operating taxes 7,271 6,091 4,451 Operating tax rate1 31.9% 29.8% 20.3% 1 Operating taxes divided by EBITA. 420  Taxes cash tax rate is volatile, do not adjust for deferrals in order to benchmark his- torical performance. Instead, use the operating tax rate on an accrual basis.) To convert operating taxes to operating cash taxes, start with operating taxes and add the increase (or subtract the decrease) in operating-related de- ferred-tax assets net of deferred-tax liabilities.3 Since deferred taxes on the balance sheet include both operating and nonoperating items, we need to sep- arate them. To do this, search the notes for a detailed listing of deferred taxes. Exhibit 20.7 presents the deferred-tax table for Walmart, found in note 9 of the company’s annual report. Deferred-tax assets (DTAs) are presented in the upper portion of the table. Walmart recognizes a valuation allowance against tax assets because some tax assets are unlikely to be realized. In the lower portion of the table are deferred-tax liabilities (DTLs). The table concludes by netting deferred-tax liabilities against deferred-tax assets. Exhibit 20.8 reorganizes deferred-tax assets and liabilities into operating and nonoperating items. Walmart has four deferred-tax accounts related to opera- tions: accrued liabilities, share-based compensation, accelerated depreciation, and inventory. One of these, accrued liabilities, includes things like member- ship fees, which are collected from the customer upfront but recorded as income over the life of the membership. The government recognizes income when the cash is collected, but the accounting statements recognize income over 3 Given the complexity of today’s deferred-tax accounting, adjusting taxes by the change in aggregate deferred taxes is insufficient for calculating free cash flow. For Coca-Cola in 2018, 85 percent of the increase in deferred tax assets was attributable to a restatement of their value due to an accounting change, rather than the actual prepayment of taxes. EXHIBIT 20.7  Walmart: Deferred-Tax Assets and Liabilities $ million 2017 2018 Deferred-tax assets Loss and tax credit carryforwards 1,989 2,964 Accrued liabilities 2,482 2,135 Share-based compensation 217 245 Other 1,251 1,131 Total deferred-tax assets 5,939 6,475 Valuation allowances (1,843) (2,448) Deferred-tax assets, net of allowances 4,096 4,027 Deferred-tax liabilities Accelerated depreciation1 (3,954) (4,175) Acquired intangibles (401) (2,099) Inventory (1,153) (1,354) Other (540) (899) Total deferred-tax liabilities (6,048) (8,527) Deferred-tax assets, net of liabilities (1,952) (4,500) 1 Reported as property and equipment in the annual report.