IRS Exposed Some Confidential Taxpayer Data on Website

WASHINGTON—The Internal Revenue Service inadvertently posted what is normally confidential information involving about 120,000 individuals before discovering the error and removing the data from its website, officials said Friday.

The data are from Form 990-T, which is often required for people with individual retirement accounts who earn certain types of business income within those retirement plans. That typically includes people whose IRAs are invested in master limited partnerships, real estate or other assets that generate income, not those whose IRAs are solely invested in securities.