The U.S. Internal Revenue Service (IRS) said Monday a hacking attack into one of its computer databases revealed in May was much more extensive than previously thought, with nearly three times as many taxpayers hit by data theft.
Hillary Clinton's family's charities are refiling at least five annual tax returns after a Reuters review found errors in how they reported donations from governments, and said they may audit other Clinton Foundation returns in case of other errors.
The Obama administration said on Friday that 800,000 people who signed up for health insurance under the Affordable Care Act received incorrect tax forms and should wait to receive new ones before filing their taxes.
Microsoft sued the Internal Revenue Service on Monday, seeking information about a law firm hired by U.S. tax authorities in a review of how the software company books sales between subsidiaries.
