Wisconsin 2025-2026 Regular Session

Wisconsin Senate Bill SB1012

Introduced
2/12/26  
Refer
2/12/26  

Caption

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

Note

Throughout discussions surrounding SB1012, the importance of a predictable tax environment has been highlighted. Stakeholders have expressed the need for clarity and consistency in tax policies, and the proposed shifts could be perceived as both a necessary update and a potential source of confusion among taxpayers unfamiliar with changing rates.

Impact

If enacted, SB1012 would significantly affect how interest on unpaid or overpaid taxes is calculated in the state. Specifically, it would shift from a static interest rate of 12% for delinquent taxes and 3% for overpayments to a more flexible model that could benefit taxpayers by ensuring rates are more reflective of the current economic climate. This aligns the state's interests with broader financial principles, potentially reducing the financial burden on taxpayers during adverse economic conditions. It is a step toward modernizing taxation practices in Wisconsin.

Summary

Senate Bill 1012 aims to revise the regulations regarding interest rates applied to late and non-delinquent taxes, as well as on overpayments made by taxpayers. The bill proposes that the Department of Revenue (DOR) should establish a new set of interest rates based on the effective federal funds rate, rather than maintaining the current fixed rates that are percentage-based. This is intended as an adaptive measure to align state interest rates with broader economic conditions as indicated by federal trends, potentially adjusting rates annually rather than having them uniformly fixed.

Contention

The proposed changes may lead to both support and criticism. Proponents of SB1012 argue that aligning tax interest rates with the federal funds rate provides fairness and encourages timely payments by offering more reasonable rates that vary with economic conditions. However, opponents may raise concerns regarding the potential for unpredictable fluctuations in tax liabilities that could complicate budgeting for taxpayers. Additionally, some may view the initial high rate of 12% as sufficient incentive for prompt payment of taxes.

Companion Bills

WI AB1026

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

Previously Filed As

WI AB1026

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

WI HB959

In personal income tax, further providing for refund or credit of overpayment and providing for interest on refund or credit of overpayments; in general provisions, providing for interest on taxes due the Commonwealth and for interest on overpayments; and making repeals.

WI A4411

Increases interest rate paid on certain overdue refunds of tax overpayments.

WI H3238

Regarding late payments and interest rates for real estate bills and personal property taxes

WI HB2159

Relating to the assessment of interest on overpayments by the Bureau for Medical Services

WI H0173

Interest on Trust Accounts Program Interest Rates

WI HB333

Overpayment of unemployment benefits; prohibit interest accrual or fees assessed by MDES when no fault overpayment.

WI S738

Modifies interest rates and accrual of interest on certain unpaid water and sewer utility bills and delinquent municipal taxes, assessments, and other municipal liens and charges.

WI A800

Modifies interest rates and accrual of interest on certain unpaid water and sewer utility bills and delinquent municipal taxes, assessments, and other municipal liens and charges.

WI HB1269

Concerning pawnbroker fees and interest rates.

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