The Clinton Foundation failed to report $20 million in donations from governments to the Internal Revenue Service, newly refiled tax returns show.

Reuters reported that the foundation disclosed the $20 million it received from governments, most of them foreign, between 2010 and 2013 when it and a spin-off organization refiled tax returns from six years to fix errors.

The Bill, Hillary, & Chelsea Clinton Foundation did not previously separate out its donations from governments on old tax returns as is mandated by the IRS.

The foundation refiled tax returns from 2010, 2011, 2012, and 2013 and a charity spun off from the foundation, the Clinton Health Access Initiative, refiled its own returns from 2012 and 2013 after both were found to have made errors reporting funds from foreign governments. The revelations about inaccuracies came just as Hillary Clinton, a Democratic candidate for president, endured scrutiny for the millions of dollars that her family foundation has received from foreign governments.

Earlier this month, the initiative backtracked from an earlier promise to refile its returns to correct the errors, which were made when the charity failed to comply with a conflict-of-interest pledge in place when Hillary Clinton was secretary of state. When Republicans called for the IRS to audit the spin-off charity, the initiative quickly agreed to submit its corrected tax forms.

"There is no change in our bottom line numbers: assets, liabilities, and net assets," Clinton Foundation president Donna Shalala wrote in a letter Monday. "There is nothing to suggest that the Foundation intended to conceal the receipt of government grants, which we report on our website."

Shalala also stressed that the charity is "committed to transparency and accountability."

The newly filed tax documents also show that the Clinton Foundation raised $178 million in 2014, a five-year record for annual fundraising for the charity. When Clinton officially announced her presidential run in April, she was forced to cut formal ties with the organization.