Wisconsin Department of Revenue Form Instructions

ST-12 — Sales and Use Tax Return

preamble

Wisconsin Sales and Use Tax Return Form ST-12 Wisconsin Department of Revenue State, County, and City Sales and Use Tax Use BLACK INK Only Check if this is an amended return Check if address or name change (note changes at left) Check if correspondence is included Step C Sales Tax Before Discount 13 Total sales tax (add lines 8, 9b, 10b, 10d and 11b . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Check if business discontinued (enter discontinuation date below) (MM DD YYYY) Attention Business Name Legal Name Mailing Address - Street or PO Box City State Zip Code FEIN / SSN Tax Account Number Due Date (MM DD YYYY)Period Begin Date (MM DD YYYY) Period End Date (MM DD YYYY) 1 Total sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Subtractions from total sales: 2 Sales for which you received exemption certificates . . . . . . . . . . . . . . . 2 3 Sales of exempt property and services (sales that occurred outside Wisconsin, real property, groceries and highway fuel, etc .) . . . . . . . . . 3 4 Sales returns, allowances, and bad debts . . . . . . . . . . . . . . . . . . . . . . . 4 5 Other (sales tax included in line 1, etc .) . . . . . . . . . . . . . . . . . . . . . . . . . 5 6 Total subtractions (add lines 2 through 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 7 Sales subject to state sales tax (subtract line 6 from line 1) . . . . . . . . . . . . . . . . . . . . . . . . . 7 8 State sales tax (line 7 x . 05) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Step A Sales Tax - State Step B Sales Tax - County and City C O U N T Y C I T Y 11 City of Milwaukee taxable sales after 2023 11a x .02 = 11b Complete Schedule CT (pages 3 and 4) 12 For Department Use Only 9 Enter total from Schedule CT, Col . 1 . . . . . 9a x .005 = 9b 10 Milwaukee County taxable sales after 2023 10a x .009 = 10b Milwaukee County taxable sales before 2024 10c x .005 = 10d

Step D Discount and Net Sales Tax 14 Total sales tax (fill in amount from line 13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 15 Retailer's discount (see instructions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 16 Net sales tax (subtract line 15 from line 14) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Use Tax - County and CityStep F 17 Purchases subject to state use tax 17a x .05 = 17b Step E Use Tax - State Step G Total Amount Due 22 Total sales and use taxes (add lines 16, 17b, 18b, 19b, 19d and 20b) . . . . . . . . . . . . . . . . . 22 23 Interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 24 Late filing fee ($20.00) and negligence penalty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 25 Total amount due (add lines 22 through 24) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Step H Signature and Mailing Information I hereby certify that this return, including any accompanying schedules and statements, has been examined by me and to the best of my knowledge and belief is a true, correct, and complete return. Contact Person (please print clearly) Phone Number Signature Date Mail to: Wisconsin Department of Revenue PO Box 8921 Madison WI 53708-8921 For tax questions, call (608) 266-2776 C O U N T Y 21 For Department Use Only C I T Y 20 City of Milwaukee taxable purchases after 2023 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20a x .02 = 20b Complete Schedule CT (pages 3 and 4) 18 Enter total from Schedule CT, Col . 2 . . . . . 18a x .005 = 18b 19 Milwaukee County taxable purchases after 2023 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19a x .009 = 19b Milwaukee County taxable purchases before 2024 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19c x .005 = 19d Form ST-12 Page 2 of 4

S-012CT (R . 4-25)

USE BLACK INK ONLY

Column 2 Purchases Subject to County Use Tax Column 1 Sales Subject to County Sales Tax Adams . . . . . . . . 01-94 01 01 Ashland . . . . . . . 04-88 02 02 Barron . . . . . . . . 04-86 03 03 Bayfield . . . . . . . 04-91 04 04 Brown . . . . . . . . 01-18 05 05 Buffalo . . . . . . . . 04-87 06 06 Burnett . . . . . . . 04-89 07 07 Calumet . . . . . . 04-18 08 08 Chippewa . . . . . 04-91 09 09 Clark . . . . . . . . . 01-09 10 10 Columbia . . . . . . 04-89 11 11 Crawford . . . . . . 04-91 12 12 Dane . . . . . . . . . 04-91 13 13 Dodge . . . . . . . . 04-94 14 14 Door . . . . . . . . . 04-88 15 15 Douglas . . . . . . . 04-91 16 16 Dunn . . . . . . . . . 04-86 17 17 Eau Claire . . . . . 01-99 18 18 Florence . . . . . . 07-06 19 19 Fond du Lac . . . 04-10 20 20 Forest . . . . . . . . 04-95 21 21 Grant . . . . . . . . . 04-02 22 22 Green . . . . . . . . 01-03 23 23 Green Lake . . . . 07-99 24 24 Iowa . . . . . . . . . 04-87 25 25 Iron . . . . . . . . . . 04-91 26 26 Jackson . . . . . . . 04-87 27 27 Jefferson . . . . . . 04-91 28 28 Juneau . . . . . . . 04-92 29 29 Kenosha . . . . . . 04-91 30 30 Kewaunee . . . . . 04-17 31 31 La Crosse . . . . . 04-90 32 32 Lafayette . . . . . . 04-01 33 33 Langlade . . . . . . 04-88 34 34 Lincoln . . . . . . . . . 04-87 35 35 County Effective Date Code Code Schedule CT - County Sales and Use Tax Reporting Period (mm dd yyyy) Beg Date: End Date: Form ST-12 Name Tax Account No . Page 3 of 4

S-012CT (R . 4-25) Total SALES Subject to County Sales Tax Total PURCHASES Subject to County Use Tax Add Column 2 amounts from pages 3 and 4. Enter above and on line 18 of page 2. Add Column 1 amounts from pages 3 and 4. Enter here  and on line 9 of page 1. Manitowoc . . . . . . 01-25 36 36 Marathon . . . . . . . 04-87 37 37 Marinette . . . . . . . 10-01 38 38 Marquette . . . . . . 04-89 39 39 Menominee . . . . . 04-20 72 72 Milwaukee . . . . . . . . . . 40 40 Monroe . . . . . . . . 04-90 41 41 Oconto . . . . . . . . . 07-94 42 42 Oneida . . . . . . . . . 04-87 43 43 Outagamie . . . . . . 01-20 44 44 Ozaukee . . . . . . . 04-91 45 45 Pepin . . . . . . . . . . 04-91 46 46 Pierce . . . . . . . . . 04-88 47 47 Polk . . . . . . . . . . . 04-88 48 48 Portage . . . . . . . . 04-89 49 49 Price . . . . . . . . . . 01-93 50 50 Racine . . . . . . . . . 04-25 51 51 Richland . . . . . . . . 04-89 52 52 Rock . . . . . . . . . . 04-07 53 53 Rusk . . . . . . . . . . 04-87 54 54 St . Croix . . . . . . . . 04-87 55 55 Sauk . . . . . . . . . . 04-92 56 56 Sawyer . . . . . . . . . 04-87 57 57 Shawano . . . . . . . 04-90 58 58 Sheboygan . . . . . 01-17 59 59 Taylor . . . . . . . . . . 07-99 60 60 Trempealeau . . . . 10-95 61 61 Vernon . . . . . . . . . 01-97 62 62 Vilas . . . . . . . . . . . 04-88 63 63 Walworth . . . . . . . 04-87 64 64 Washburn . . . . . . 04-91 65 65 Washington . . . . . 01-99 66 66 Waukesha . . . . . . . . . . 67 67 Waupaca . . . . . . . 04-89 68 68 Waushara . . . . . . 04-90 69 69 Winnebago . . . . . . . . . 70 70 Wood . . . . . . . . . . 01-04 71 71 Column 2 Purchases Subject to County Use Tax Column 1 Sales Subject to County Sales TaxCounty Effective Date Code Code No County TaxNo County TaxNo County TaxNo County Tax No County TaxNo County TaxNo County TaxNo County Tax Enter purchases on line 19, Page 2Enter purchases on line 19, Page 2Enter sales on line 10, Page 1Enter sales on line 10, Page 1 Form ST-12 Page 4 of 4

Source: official text