Most Dane County municipalities limit residential garage sales to 3 to 4 per calendar year, each 2 to 4 days long. Madison has no explicit frequency cap in MGO 9.13 but enforces through zoning when sales become commercial. Wisconsin DOR requires sales tax registration after 3 sales annually.
Frequency limits across Dane County vary: Sun Prairie Ch. 8 caps garage sales at 4 per calendar year per residence, max 4 days each. Fitchburg Ch. 11 allows 3 sales per year, 3 days each. Middleton Title 7 allows 4 sales annually. Verona Ch. 8 caps at 3 sales per year. Stoughton Ch. 50 allows 3 sales of up to 4 days. Monona limits to 4 sales per year. Madison does not set an explicit numeric cap in MGO 9.13 but uses zoning enforcement (MGO 28.151) to stop residences operating as de facto retail outlets. Wisconsin Department of Revenue rule 11.05 triggers seller's permit requirements once a household exceeds 3 sales per year or $2,000 in gross receipts - at that point, sales tax collection and reporting are required. Multi-family neighborhood sales are typically counted as a single event by most municipalities. Charitable or church sales are often exempt.
Exceeding municipal frequency cap: $50 to $200 citation (Sun Prairie $100, Fitchburg $75). De facto retail operation: zoning violation $100 to $500. Unreported sales tax: DOR penalty up to 25% of unpaid tax.
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See how Dane County's frequency limits rules stack up against other locations.
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