The Internal Revenue Service has announced a record 90 million tax returns were filed electronically this year, led by a big increase in people using home computers.For the first time, more than 30 million individual income tax returns were filed from home computers. By April 24, the IRS had accepted 31.2 million returns filed from home computers, up 19.3 percent from the same time last.IRS e-file broke the 90 million mark this year.