The following changes were received after the release of version 23.1.0.0:

• Georgia changed its interest rate from 6.25% to 10.5% for both underpayments and overpayments.
• Kansas changed its interest rate from 4.0% to 6.0% for both underpayments and overpayments.
• New Jersey changed its interest rate from 9.25% to 10.0% for underpayments and from 6.25% to 7.0% for overpayments. A retroactive change was also added to the Instant Interest rate table for New Jersey from 7.75% to 9.25% for underpayments and from 4.75 to 6.25% for overpayments from the period from November 1, 2022, to January 1, 2023.

We added a change to the rate for underpayments for Pennsylvania from 1.0% to 5.0% effective January 1, 2023. That change is based on language in Section 806.1(b.1) of the Pennsylvania Fiscal Code, which states that the rate on refunds will be 2 percentage points less than the rate on underpayments. The rate on underpayments was changed from 3.0% to 7.0% in the 23.1.0.0 release of Instant Interest.