Video above: President Biden on corporate tax reformPresident Joe Biden restored a long-standing presidential tradition Monday by releasing his tax returns, showing that 25.9% of the first couple's income went to the federal government in 2020. The average federal income tax rate is just over 14%.Here's a breakdown of what Biden and Vice President Kamala Harris paid in taxes.The BidensThe president and First Lady Jill Biden, a teacher, earned $607,336 last year while he was running for president. Biden campaigned on the transparency of his personal finances, releasing 22 years' worth of tax filings ahead of the 2020 election. Biden's predecessor, Donald Trump, declined to release his tax returns, a precedent that the new administration rejected."I would expect that we will continue to release the president's tax returns, as should be expected by every president of the United States," White House Press Secretary Jen Psaki told reporters Monday ahead of the release.The Bidens donated $30,704 to 10 charities last year. The largest gift was $10,000 to the Beau Biden Foundation, a nonprofit focused on child abuse that is named after the president's deceased son. The president separately released his financial holdings through the Office of Government Ethics and has assets worth between $1.2 million and $2.88 million.Harris and EmhoffVice President Kamala Harris and Second Gentleman Douglas Emhoff also released their 2020 tax filings. They paid a rate of 36.7% on income of $1,695,225 and contributed $27,006 to charity. Harris was previously a U.S. senator representing California, while Emhoff was a Los Angeles-based entertainment lawyer. He now teaches law at Georgetown University.Harris also made public her financial holdings through the Office of Government Ethics, showing her assets valued at between $1 million and $2.4 million. Harris also listed just under $359,000 in advance payments for her 2019 memoir, "The Truths We Hold."