Anyone reviewing this question should be aware it was answered in early 2020. In 2021, tax help is very different due to the COVID pandemic, and information can be found at https://www.bangorpubliclibrary.org/taxinformation
10am to 4pm. They finish up the remaining appointments from 4-5pm but don't take new appointments past 4pm. The service continues on Wednesdays and Thursdays until April 17! Keep an eye on the BPL website for updates around bad weather.
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