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Last Updated: 11/7/2018

Interest rates

​Year

​Interest Assessed on Unpaid Taxes

​Interest Paid

on Refunds

2019 ​5% 5%
2018​​ 4% 4%
​2017 ​4% ​4%
2016 ​3% ​3%
​2015 ​3%
3%
2014 3% 3%
2013​ 3%​ ​3%​
​2012​ ​3% ​3%
​2011 ​3% ​3%
2010​ 3% 3%
​2009 ​5% 5%