Ohio to Set 2027 Tax Interest Rate at 7 Percent
The rate will apply to tax computations across the state for households beginning in the 2027 calendar year.
Updated on Oct. 21, 2026 in Taxes
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The Ohio Department of Taxation has announced that the annual interest rate for tax-related computations will be 7 percent for the 2027 calendar year. This rate, which is set annually, applies to various tax filings for Ohio households.
Why it matters
These rates determine the interest costs applied to late tax payments or potential refunds throughout the year. The annual figure is tied to fluctuations in the federal short-term rate, which impacts the cost of outstanding tax obligations for residents.
The Ohio Department of Taxation set the 2027 interest rate at 7 percent, based on the 4 percent federal short-term rate from July 2026 plus 3 percentage points. A separate interest rate of 4 percent will apply specifically to personal property and estate taxes in 2027.
The players
Ohio Department of Taxation
The state agency responsible for administering tax laws, managing revenue collection, and setting annual interest rates for taxpayers.
The details
The state determines these rates by adding three percentage points to the federal short-term rate identified in July of the prior year. This interest is applied by the Department of Taxation when calculating charges on underpaid taxes or interest owed on overpayments. County auditors receive these certified rates directly from the state to facilitate local tax administration.
Timeline
July 2026: The federal short-term rate used for the calculation was established.
October 15, 2026: The Department issued the annual certified interest rates.
Calendar year 2027: The new tax interest rates are effective for the full year.
Money Landscape
The setting of these rates follows established state formulas that link Ohio tax obligations to federal short-term interest trends. This 7 percent rate serves as the standard benchmark for state tax-related computations throughout the upcoming 2027 calendar year.
Ohio households should review their current tax status and outstanding balances to understand how this 7 percent interest rate may affect their liability in 2027. Consider discussing any potential impact on tax payments with a qualified tax professional to ensure accurate financial planning.
The takeaway
The state interest rate for 2027 will rise to 7 percent as a result of federal benchmark shifts. Residents with pending tax issues or ongoing estate matters should review their account status with a tax professional to determine how this rate affects their 2027 obligations.
Further reading
For more information on state tax obligations, visit the Taxes section.
Source note: This article includes information reported by Bloombergtax.
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