An analysis released Monday shows that Amazon utilized several perfectly legal mechanisms to avoid paying $5.2 billion in federal corporate income taxes in 2021, a year in which the online retail behemoth saw its profits and sales skyrocket.\r\n\r\nMatthew Gardner, a senior fellow at the Institute on Taxation and Economic Policy (ITEP), estimated that given Amazon\u0026#039;s record-breaking $35 billion in U.S. pretax income for fiscal year 2021, the Seattle-based corporate giant paid an \u0022effective federal income tax rate of 6%\u0022—far lower than the statutory corporate tax rate of 21%.\r\n\r\n\u0022These are tax breaks that Congress has endorsed and even expanded.\u0022\r\n\r\nHad Amazon paid the latter rate on its 2021 U.S. income, Gardner noted, the company\u0026#039;s federal tax bill would have amounted to more than $7.3 billion.\r\n\r\n\u0022Instead, the company reports a current federal income tax expense of $2.1 billion,\u0022 Gardner wrote Tuesday. \u0022Amazon\u0026#039;s 2021 federal income tax payment is comparatively significant for a profitable company that paid less than $0 in the first year of the Trump-GOP tax law. But the company\u0026#039;s continuous tax avoidance adds up over time. Over the past four years, Amazon reported a total federal tax rate of just 5.1% on over $78 billion of U.S. income.\u0022\r\n\r\nITEP\u0026#039;s latest analysis caught the attention of Warren Gunnels, the staff director for Senate Budget Committee Chairman Bernie Sanders (I-Vt.), a longtime critic of Amazon\u0026#039;s tax dodging and mistreatment of workers.\r\n\r\n\u0022Class warfare is Amazon making a record-breaking $36 billion profit last year, avoiding $5.2 billion in taxes, and paying an effective federal income tax rate of 6% while Jeff Bezos spends his fortune on union-busting, flying to outer space, and protecting his $500 million yacht,\u0022 Gunnels tweeted late Monday, referring to Amazon\u0026#039;s billionaire executive chairman and former CEO.\r\n\r\n\r\n\r\nGardner explained that Amazon used several \u0022familiar\u0022 legal maneuvers to slash its federal tax bill in 2021, including tax credits and deductions such as the foreign-derived intangible income (FDII) deduction—which was made available by the 2017 Trump-GOP tax law.\r\n\r\n\u0022These are tax breaks that Congress has endorsed and even expanded,\u0022 Gardner emphasized. \u0022This means that Amazon\u0026#039;s 6% tax rate is a result that lawmakers have enabled and could prevent if they summon the political will to do so. This outcome will be very unlikely for Amazon and other very low-tax corporations to replicate in the future if Congress enacts the minimum corporate tax provision included in the Build Back Better Act passed by the House of Representatives in November.\u0022\r\n\r\nWhile raking in massive profits, handing CEO Andy Jassy a huge compensation package, and doubling its cap on base salaries for corporate employees to $350,000, Amazon is working aggressively to crush a unionization effort by warehouse employees in Bessemer, Alabama.\r\n\r\nBessemer workers are currently voting for the second time on whether to unionize after the National Labor Relations Board ruled that Amazon unlawfully interfered in the previous election last year.\r\n\r\nAccording to Glassdoor, the average Amazon warehouse worker in the U.S. makes $16 an hour—roughly $31,000 a year for a full-time worker.\r\n\r\nBezos, meanwhile, saw his wealth grow by $1.4 billion in 2021.