Invoicing in Wisconsin

Built-in handling of WI sales tax (5% state rate) and statutory late fees.

State sales tax
5.00%
Late fee max
1.5%/mo
Metros covered
13
Written contract req.
No
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Wisconsin compliance at a glance

  • Sales tax: 5.00% state rate. State 5%; combined commonly 5.5-6%.
  • Late fees: Up to 1.5% per month. (Wis. Stat. §138.04) Default 5%/yr; contract rates up to 12%/yr without licensing.
  • Prompt-pay law: Wisconsin Prompt Payment Act (Wis. Stat. §66.0135 for public; §779.135 for construction). Construction subs paid within 7 days of GC receiving payment; 12% per year interest if late.

Wisconsin metros

Wisconsin guides