Missouri Set 2027 Statutory Tax Interest Rates
The Missouri Department of Revenue has finalized interest rates for income and property taxes for the 2027 calendar year.
Updated on Oct. 8, 2026 in Taxes
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The Missouri Department of Revenue has established a uniform 7 percent interest rate for both tax deficiencies and refunds regarding individual income and property tax credits. These figures are part of the state's official statutory rate schedule for the upcoming 2027 tax year.
Why it matters
These statutory rates dictate the financial penalties for underpayment and the interest paid by the state on late tax refunds. Establishing these percentages in advance allows taxpayers to calculate potential liabilities or returns for the year ahead.
The state set a 7 percent interest rate for individual income tax and property tax credits. Additionally, a 3.3 percent refund rate applies to other tax types for the first quarter of 2027.
The players
Missouri Department of Revenue
This state agency is responsible for the collection of taxes and the administration of revenue-related laws within Missouri.
The details
The Missouri Department of Revenue released these figures in an official document issued on October 1, 2026. While income and property tax rates are set at 7 percent for the year, the refund interest rate for other tax categories is currently limited to the 3.3 percent threshold for the first quarter.
Timeline
October 1, 2026: The Department of Revenue published the official interest rates.
2027: The statutory interest rates are effective for the full calendar year.
Q1 2027: A 3.3 percent refund rate applies to other tax classifications.
Market Dynamics
This adjustment reflects the standard annual updates to the Missouri Department of Revenue statutory interest rate schedule. These changes are part of the broader macroeconomic cycle in which state agencies adjust interest assessments based on current financial climates and legislative mandates.
Taxpayers should account for the 7 percent interest rate when estimating potential costs for underpaid income or property taxes. These figures also impact the total amount of interest residents might receive if the state issues a refund on specific tax categories.
The takeaway
Understanding these rates helps residents accurately forecast their tax-related financial outcomes for the year. Taxpayers should review their specific tax filings to determine how these interest adjustments may apply to their personal obligations.
Further reading
For more information on state tax obligations, visit the Missouri Taxes section.
Source note: This article includes information reported by Bloombergtax.
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Do you believe current tax refund interest rates provide fair compensation for your tax money?
