IRS to Require More Information About Taxpayers’ Home Mortgage. Beginning tax year 2017, the Internal Revenue Service will require taxpayers to disclose additional information about their home mortgages. Currently, the IRS only requires disclosure of the loan’s principal balance at the beginning of the year, origination date and address of property securing the loan. Under the revised rule, taxpayers must report on the 2017 Form 1098 information such as mortgage insurance premium, confirmation that the address of the property is the same as the borrower’s address, description of the property in case the address is unreported, and the number of mortgaged properties owned by the taxpayer. Specifically, the information will help the IRS determine whether deducted mortgage interest is within the $1 million limit on home acquisition debt and $100,000 of home-equity debt, and whether the ...