From the PA Department of Revenue | Pennsylvania Bulletin Doc. No. 18-2018 | December 29, 2018
Pennsylvania announced 2019 interest rates on tax underpayments and overpayments. The interest rates increased by 2% per year in each category.
Interest Rate on Underpayments
The 2019 interest rate on underpayments of all Pennsylvania taxes is 6% per year, up from 4% in 2018.
Interest Rates on Overpayments
The 2019 interest rates for overpayments of taxes are:
- 6% per year for personal income tax, up from 4% in 2018; and
- 4% per year for all other taxes, up from 2% in 2018.