Interest Calculator
Tax Type / Period Type:
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Commercial Activity (annual)
Commercial Activity (quarterly)
Motor Fuel
Other Tobacco Products (quarterly)
Other Tobacco Products (monthly)
Didn't find your tax type? Check out our new
OH|Tax eServices Interest Calculator.
For a list of all interest rates, see the
annual certified interest rates.
Tax Period (year):
Tax Period (half and year):
Tax Period (quarter and year):
Tax Period (month and year):
Tax Period (half month and year):
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Jan-Jun
Jul-Dec
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Jan-Mar
Apr-Jun
Jul-Sep
Oct-Dec
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January
February
March
April
May
June
July
August
September
October
November
December
Amount Due:
$
Payment Date:
/
/
Calculate Interest
InterestCalc version 3.6 (October 2025) on 2
