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Bill > SB1012


WI SB1012

WI SB1012
Interest rates on late, nondelinquent taxes and on overpayments. (FE)


summary

Introduced
02/12/2026
In Committee
02/12/2026
Crossed Over
Passed
Dead

Introduced Session

2025-2026 Regular Session

Bill Summary

This bill modifies the interest rates applicable to various late, nondelinquent taxes and fees owed to the Department of Revenue and to overpayments for those taxes and fees that are refunded by DOR. Under current law, generally, late, nondelinquent taxes or fees administered by DOR are subject to an interest rate of 12 percent per year, and DOR must pay interest at the rate of 3 percent per year on LRB-0769/1 KP:emw 2025 - 2026 Legislature SENATE BILL 1012 refunds of overpayments of those taxes or fees. Beginning in 2026, the bill requires DOR to annually determine an interest rate to be used in calculating interest for late, nondelinquent taxes or fees administered by DOR and for refunds of overpayments paid by DOR. The interest rate is based on the effective federal funds rate published by the Federal Reserve Bank of New York for January 2 of the applicable year. The bill applies to the following taxes and fees: 1) the individual income and corporate income and franchise tax; 2) the withholding tax; 3) the sales and use tax; 4) taxes paid by utilities and insurers; 5) excises taxes on motor vehicle fuel, alcohol beverages, and cigarettes, tobacco, and vapor products; development surcharge; 7) the petroleum inspection fee; 8) the metalliferous mining tax; and 9) the charge imposed by DOR on a city, village, town, or county for the expenses incurred by DOR in examining city, village, town, or county records regarding the assessment of property upon a failure to return information requested by DOR. Also, current law requires that an interest rate of 12 percent per year apply to delinquent individual income and corporate income and franchise taxes in instances in which the secretary of revenue determines that reduction from an interest rate of 1.5 percent per month for such delinquent taxes is fair and equitable. The bill requires that the interest rate described above that is determined annually by DOR based on the effective federal funds rate apply to such delinquent taxes in instances in which the secretary determines that the reduction is fair and equitable. For further information see the state fiscal estimate, which will be printed as an appendix to this bill.

AI Summary

This bill modifies how interest rates are calculated for late, nondelinquent taxes and fees owed to the Department of Revenue (DOR), as well as for overpayments of these taxes and fees that are refunded. Currently, late taxes generally accrue interest at 12% annually, and overpayments refunded by DOR earn 3% interest annually. Starting in 2026, the bill requires DOR to annually determine a new interest rate based on the effective federal funds rate published by the Federal Reserve Bank of New York for January 2nd of that year. This new, variable interest rate will apply to a wide range of taxes and fees, including individual and corporate income taxes, withholding taxes, sales and use taxes, utility and insurer taxes, various excise taxes, and fees related to petroleum inspection and mining, among others. The bill also adjusts how interest is applied in specific situations, such as when the Secretary of Revenue determines a reduction in interest is fair and equitable for delinquent taxes, ensuring the new annually determined rate is used in those instances.

Committee Categories

Budget and Finance

Sponsors (11)

Last Action

Read first time and referred to Committee on Agriculture and Revenue (on 02/12/2026)

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