Maine recently released its interest rates for calculating interest on overdue payments owed by taxpayers to Maine Revenue Services (MRS), as well as to calculate interest on overdue refunds owed by MRS to taxpayers. The previous rates for Calendar Year 2020 were 7% annually broken down to 0.5833% monthly.
The rates for Calendar Year 2021 are set at 5% annually with a monthly broken down rate of 0.4167% monthly.
To view the MRS Interest Rates page, click here.
