Wisconsin penny rounding law

With no Wisconsin rule for store sales, the calculator applies the nearest-nickel method used by most state laws and the federal bill, or rounding in the customer’s favor. Choose another state to compare.

Wisconsin law and bills

We found no Wisconsin rounding bill that advanced in the 2025–2026 session; the Legislature’s regular floor periods ended in spring 2026, so any unpassed bill is effectively dead. The next Legislature convenes in January 2027.

What Wisconsin agencies say

On March 13, 2026 the Department of Agriculture, Trade and Consumer Protection (DATCP) and the Department of Revenue issued joint guidance on cash transaction rounding:

• Rounding applies only to cash transactions that need change, after the price and sales tax are totaled.
• Businesses may choose their own method, but DATCP recommends rounding down to the nearest 5¢.
• DATCP encourages posting a flyer at entrances and points of sale.
• DATCP will use enforcement discretion under its unfair sales, price accuracy and misrepresentation rules.
• Revenue: rounding does not change the sales tax collected or remitted.

Can a Wisconsin store round cash totals?

Yes, and Wisconsin’s best-known chain already follows the state’s preferred approach: La Crosse-based Kwik Trip rounds cash purchases down to the nearest five cents. Casey’s also rounds down. A store that rounds up is not barred by statute, but DATCP’s recommendation and its price-accuracy rules make rounding down, with a posted flyer, the safest choice.

Federal law

There is no federal rounding rule in force either. The Common Cents Act (H.R. 10167) passed Congress on September 28, 2026, but as of October 31, 2026 we found no record of it being signed. If enacted, it would let sellers in Wisconsin round cash totals symmetrically to the nearest 5¢ without requiring anyone to round, keep pennies legal tender, and protect sellers that follow its method from conflicting state or local rules. Federal status of the penny.

Your options as a customer

• Pay by card, debit, EBT or app. Those payments are charged the exact amount; rounding only ever touches cash.
• Pay with exact change. Pennies are still legal tender (31 U.S.C. § 5103). The Federal Reserve notes, though, that no federal law makes a private business accept cash or coins. We found no Wisconsin law that changes that, so a store sets its own payment policy. Federal Reserve FAQ.
• Check the receipt. It should show the exact total and a separate rounding line, so you can see which way it went.
• Report a problem. If a store rounds every cash total up without telling customers, contact the Wisconsin DATCP, Bureau of Consumer Protection. See also is it legal for a store to round up?

Sales tax

Wisconsin’s state sales tax rate is 5%, most counties add 0.5%, and Milwaukee County and the City of Milwaukee add more. Groceries are exempt. The Department of Revenue says tax is computed to the cent first and rounding does not change it. More on sales tax and cash rounding.

SNAP, EBT and card payments

SNAP and WIC benefits are paid electronically, so the EBT part of any purchase in Wisconsin is always charged to the exact cent. Federal rules require stores to treat SNAP shoppers the same as other customers, so a store that rounds the cash part of a split payment should use the same rule for everyone. SNAP/EBT, cards and refunds.

Rules in neighboring states

Shopping across the line? Rounding rules change at the border.

Checked against the sources below as of October 31, 2026. Compare every state in the state-by-state tracker.