IR-2017-210, Dec. 27, 2017
WASHINGTON – The Internal Revenue Service advised tax professionals and taxpayers today that pre-paying 2018 state and local real property taxes in 2017 may be tax deductible under certain circumstances.
The IRS has received a number of questions from the tax community concerning the deductibility of prepaid real property taxes. In general, whether a taxpayer is allowed a deduction for the prepayment of state or local real property taxes in 2017 depends on whether the taxpayer makes the payment in 2017 and the real property taxes are assessed prior to 2018. A prepayment of anticipated real property taxes that have not been assessed prior to 2018 are not deductible in 2017. State or local law determines whether and when a property tax is assessed, which is generally when the taxpayer becomes liable for the property tax imposed.