Question: how often are itins renewed?
Answer: A1: ITINs that have not been used on a tax return for Tax Year 2016, Tax Year 2017 or Tax Year 2018 will expire December 31, 2019. Additionally, ITINs with middle digits of 83, 84, 85, 86 or 87 (e.g. 9NN-83-NNNN) will also expire at the end of the year.