Internal Revenue Service United States Department of the Treasury
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Important Changes This Year


Extended and Expired Legislation

The Bipartisan Budget Act of 2018 extended the following provisions only through December 31, 2017. They are expired for 2018.

  • Exclusion from gross income of qualified principal residence indebtedness.
  • Mortgage insurance premiums deductible as qualified residence interest.
  • Deduction for qualified tuition & fees.
  • Credit for nonbusiness energy property (residential energy credit).

Under the Protecting Americans from Tax Hikes Act of 2015 (PATH Act), ITINs that have not been used on a federal tax return at least once in the last three consecutive years will expire Dec. 31, 2018, and ITINs with middle digits 73, 74, 75, 76, 77, 81 or 82 will also expire one day after the due date of the return. Affected taxpayers who expect to file a tax return in 2019 must submit a renewal application.


Congress may enact additional legislation that will affect taxpayers after this publication goes to print. Any changes will be reflected in Publication 4491-X, VITA/TCE Training Supplement, available in mid-January on