Complete guide to permits and licenses required to start a welder in Green Bay, WI. Fees, renewal cycles, and agency contacts.
Domestic Limited Liability Company Registration
Wisconsin Department of Financial Institutions - Corporations Division
Required Fee: $130.00-$130.00
Renewal: one time
Type: registration
Required for all LLCs formed in Wisconsin. Annual report filing also required ($25 fee, due by end of anniversary month).
Assumed Name (DBA) Registration
Wisconsin Department of Financial Institutions - Corporations Division
May Apply Fee: $15.00-$15.00
Renewal: one time
Type: registration
Renewal not required unless name changes. Search for name availability required prior to filing.
Wisconsin Tax Registration (Seller's Permit / Withholding Tax / Unemployment Insurance)
Wisconsin Department of Revenue
May Apply Fee: $0.00-$0.00
Renewal: one time
Type: registration
Welder services are generally not subject to sales tax unless selling tangible goods; withholding/unemployment required if employees. Register via My Tax Account portal.
Wisconsin Unemployment Insurance Account Registration
Wisconsin Department of Workforce Development
May Apply Fee: $0.00-$0.00
Renewal: one time
Type: registration
Quarterly wage reports and contributions required. New employers get account number upon approval.
Journeyman Welder Certification
Wisconsin Department of Workforce Development - Apprenticeship Division
May Apply Fee: $25.00-$25.00
Renewal: one time
Type: permit
Requires completion of registered apprenticeship (6,000+ hours) or equivalent experience + passing exam. Certification issued by DWD. Not mandatory for all welding businesses but standard for professional practice.
Master Welder Certification
Wisconsin Department of Workforce Development - Apprenticeship Division
May Apply Fee: $25.00-$25.00
Renewal: one time
Type: permit
Requires journeyman status + 2 years experience + exam. No state requirement for business owners to hold unless performing/supervising work.
Annual Report Filing (LLC)
Wisconsin Department of Financial Institutions - Corporations Division
Required Fee: $25.00-$25.00
Renewal: annual
Type: registration
Maintains good standing. Filed online via Fast Track system.
Wisconsin State Sales and Use Tax Registration
Wisconsin Department of Revenue
May Apply Renewal: one time
Type: registration
Welding services are generally not subject to sales tax in Wisconsin unless they result in the creation of a tangible product sold to the customer. If the business sells fabricated metal items (e.g., railings, gates), those sales are taxable. Registration is required via the Wisconsin Taxpayer Access Point (TAP).
Wisconsin Withholding Tax Registration
Wisconsin Department of Revenue
May Apply Renewal: one time
Type: registration
Registration required to withhold state income tax from employee wages. Must be completed via Wisconsin Taxpayer Access Point (TAP).
Fire Prevention Inspection and Permit
City of Milwaukee Fire Department
May Apply Fee: $150.00-$500.00
Renewal: annual
Type: permit
Requires fire extinguishers, suppression systems, hot work permits for daily operations
Sign Permit
City of Milwaukee Department of Neighborhood Services
May Apply Fee: $5.00-$5.00
Renewal: one time
Type: permit
Wall signs limited to 20% of wall area in commercial zones
Alarm System Permit
City of Milwaukee Police Department
May Apply Fee: $50.00-$50.00
Renewal: annual
Type: permit
False alarm fees escalate after 3rd incident per year
Dane County Zoning Approval for Commercial Use
Dane County Zoning and Land Regulation
May Apply Fee: $500.00-$2000.00
Renewal: one time
Type: permit
Welding requires A-1 Agricultural, C-2 Commercial, or I-1 Industrial zoning
Fire Safety Permit - Welding Operations
Madison Fire Department
May Apply Fee: $50.00-$50.00
Renewal: varies
Type: permit
Requires fire watch, permits valid 1 year but daily authorization needed
Workers' Compensation Insurance
Wisconsin Department of Workforce Development – Office of Workers' Compensation
May Apply Fee: $300.00-$300.00
Renewal: one time
Type: certificate
The employer must file a Workers' Compensation Coverage Form (WC‑100) with DWD and keep proof of insurance on file. Coverage must meet Wisconsin statutes; no minimum dollar amount is prescribed, only that the policy be valid.
Wisconsin Unemployment Insurance Tax Registration
Wisconsin Department of Workforce Development
May Apply Renewal: one time
Type: registration
Employers must register with the Wisconsin Department of Workforce Development (DWD) to pay unemployment insurance taxes. Rate varies by industry; new employers pay 3.05% on first $16,200 of each employee's wages (2024 rate).
Wisconsin Franchise or Income Tax Filing (LLC Pass-Through)
Wisconsin Department of Revenue
Required Renewal: one time
Type: filing
Wisconsin does not impose a franchise tax or gross receipts tax on LLCs. LLCs are pass-through entities; profits are reported on owners' personal Wisconsin income tax returns (Form 1NPR). Estimated tax payments may be required if tax liability exceeds $500 annually.
Federal Employer Identification Number (EIN)
Internal Revenue Service (IRS)
May Apply Renewal: one time
Type: registration
Although not a state tax, EIN is required for federal tax purposes and often needed to register for state taxes. Applied for online via IRS website.
Local Business Tax or Privilege License
Municipal Government (varies by city/town)
May Apply Fee: $25.00-$100.00
Renewal: one time
Type: registration
Some Wisconsin municipalities (e.g., Milwaukee, Madison) require a local business license or privilege tax. For example, Milwaukee imposes a $25 annual registration fee. Check with city clerk or local government. No statewide local tax registration.
Federal Self-Employment Tax and Income Tax Filing
Internal Revenue Service (IRS)
Required Renewal: one time
Type: permit
Applies to all self-employed individuals, including single-member LLC owners. Must file Schedule C (Form 1040) and Schedule SE for self-employment tax. Estimated tax payments required if expected tax liability is $1,000 or more.
Wisconsin Excise or Industry-Specific Taxes
Wisconsin Department of Revenue
Required Renewal: one time
Type: registration
No excise, tourism, or industry-specific taxes apply to welding businesses in Wisconsin. Sales tax may apply only to taxable tangible goods sold, not labor-only services.
General Liability Insurance
Not mandated by a specific Wisconsin state agency
Required Fee: $500.00-$500.00
Renewal: one time
Type: certificate
While Wisconsin does not legally require general liability insurance, it is strongly recommended for welding contractors to protect against third‑party bodily injury or property damage claims.
Professional Liability / Errors & Omissions Insurance
Not required by Wisconsin law for welding services
Required Fee: $300.00-$300.00
Renewal: one time
Type: certificate
Only required if the welder provides design, engineering, or consulting services that could give rise to professional negligence claims.
Welding Contractor Surety Bond
Wisconsin Department of Safety and Professional Services (DSPS)
May Apply Fee: $5000.00-$5000.00
Renewal: one time
Type: certificate
The DSPS requires a $5,000 surety bond as part of the licensing process (Wis. Stat. § 453.02). The bond protects the state and the public against contractor non‑performance.
Commercial Auto Insurance (Business Vehicles)
Wisconsin Department of Transportation (WisDOT)
May Apply Fee: $1200.00-$1200.00
Renewal: one time
Type: certificate
Wisconsin minimum liability limits are $25,000 per person, $50,000 per accident for bodily injury, and $10,000 for property damage. Higher limits are often required by clients.
Product Liability Insurance
Not mandated by Wisconsin law for welding services
May Apply Fee: $400.00-$400.00
Renewal: one time
Type: certificate
While not a legal requirement, many manufacturers carry product liability insurance to protect against claims arising from defective products.
Liquor Liability Insurance
Not applicable to welding businesses
Required Renewal: one time
Type: certificate
Only required for businesses that manufacture, sell, or serve alcoholic beverages. Not relevant to a welding LLC.
Employer Identification Number (EIN)
Internal Revenue Service (IRS)
Required Renewal: one time
Type: registration
All LLCs with employees or that elect to be taxed as a corporation must obtain an EIN.
Federal Tax Filing Obligations for LLCs
Internal Revenue Service (IRS)
Required Renewal: one time
Type: filing
Single‑member LLCs are disregarded entities by default and report on Schedule C; multi‑member LLCs file Form 1065.
OSHA Welding, Cutting, and Brazing Standard (29 CFR 1910.252)
Occupational Safety and Health Administration (OSHA)
May Apply Renewal: one time
Type: permit
Requires proper ventilation, personal protective equipment, fire protection, and qualified personnel.
OSHA Hazard Communication Standard (29 CFR 1910.1200)
Occupational Safety and Health Administration (OSHA)
May Apply Renewal: one time
Type: permit
Must maintain SDS for all chemicals and provide employee training.
ADA Title III Public Accommodations Compliance
Department of Justice (DOJ) – Office of Civil Rights
May Apply Renewal: one time
Type: permit
Ensures equal access for individuals with disabilities.
EPA NESHAP for Metal Finishing (including welding) – Subpart HHH
Environmental Protection Agency (EPA)
May Apply Fee: $500.00-$500.00
Renewal: one time
Type: permit
May require a Title V operating permit if emissions exceed major source thresholds.
EPA Resource Conservation and Recovery Act (RCRA) Hazardous Waste Generator Registration
Environmental Protection Agency (EPA)
May Apply Renewal: one time
Type: registration
Small Quantity Generators (≤ 100 kg/month) have less stringent reporting.
DOT Hazardous Materials Regulations – Transportation of Compressed Gas Cylinders
Pipeline and Hazardous Materials Safety Administration (PHMSA)
May Apply Fee: $100.00-$100.00
Renewal: one time
Type: permit
Requires proper labeling, packaging, and employee training (HAZMAT certification).
FTC Truth‑in‑Advertising and Consumer Protection Requirements
Federal Trade Commission (FTC)
Required Renewal: one time
Type: permit
Claims about welding quality, safety, or certifications must be substantiated.
Fair Labor Standards Act (FLSA) – Minimum Wage, Overtime, Recordkeeping
Department of Labor (DOL) – Wage and Hour Division
May Apply Renewal: one time
Type: permit
Overtime (time‑and‑a‑half) required for hours >40 per week.
Form I‑9 Employment Eligibility Verification
U.S. Citizenship and Immigration Services (USCIS) (DOL oversight)
May Apply Renewal: one time
Type: permit
Must retain I‑9 for 3 years after hire or 1 year after termination, whichever is later.
City of Milwaukee Business License (General)
City of Milwaukee Department of Neighborhood Services
May Apply Fee: $85.00-$85.00
Renewal: annual
Type: license
Required for all businesses; welders classified under general business license unless specific trade license applies
Milwaukee County Seller's Permit (if selling goods)
Milwaukee County Clerk
May Apply Fee: $20.00-$20.00
Renewal: one time
Type: permit
Not required if only providing services; welders selling fabricated metal may need
Zoning Compliance - Certificate of Occupancy
City of Milwaukee Department of Neighborhood Services
May Apply Fee: $100.00-$500.00
Renewal: one time
Type: permit
Welding operations typically require M-1 light industrial or C-2 commercial zoning
Home Occupation Permit
City of Milwaukee Department of Neighborhood Services
May Apply Fee: $50.00-$50.00
Renewal: annual
Type: permit
Limited to 25% of home floor area; no noxious odors, noise, or hazardous materials storage allowed for welding
Building Permit for Shop Modifications
City of Milwaukee Department of Neighborhood Services
May Apply Fee: $200.00-$200.00
Renewal: one time
Type: permit
Welding shops require proper ventilation per building code
Family and Medical Leave Act (FMLA) Compliance
Department of Labor (DOL) – Wage and Hour Division
May Apply Renewal: one time
Type: permit
Most small welder LLCs will be below the threshold, but the rule applies if the employee count grows.
OSHA Recordkeeping (OSHA Form 300 Log)
Occupational Safety and Health Administration (OSHA)
May Apply Renewal: annual
Type: filing
Must record work‑related injuries and illnesses.
EPA Toxic Release Inventory (TRI) Reporting
Environmental Protection Agency (EPA)
May Apply Renewal: annual
Type: filing
Most small welder shops fall below reporting thresholds, but must assess annually.
Wisconsin LLC Annual Report
Wisconsin Department of Financial Institutions (DFI)
Required Fee: $25.00-$25.00
Renewal: annual
Type: filing
The filing quarter is the calendar quarter (Jan‑Mar, Apr‑Jun, Jul‑Sep, Oct‑Dec) in which the LLC’s original formation date falls.
Wisconsin Sales Tax Return (Form ST‑8)
Wisconsin Department of Revenue (DOR)
May Apply Renewal: varies
Type: filing
Registration for a sales tax permit is perpetual; only the returns are periodic.
Wisconsin Withholding Tax (Form WT‑5) – Monthly/Quarterly
Wisconsin Department of Revenue (DOR)
May Apply Renewal: varies
Type: filing
Businesses with average monthly withholding < $100 may file quarterly.
Wisconsin Unemployment Insurance (UI) Contributions – Quarterly
Wisconsin Department of Workforce Development (DWD)
May Apply Renewal: varies
Type: filing
Employers must also file an annual UI report (Form UW‑1).
Wisconsin Employer’s Annual UI Report (Form UW‑1)
Wisconsin Department of Workforce Development (DWD)
May Apply Renewal: annual
Type: filing
Electronic filing is required for most employers.
Wisconsin Workers’ Compensation Insurance – Continuous Coverage
Wisconsin Department of Workforce Development (DWD) – Workers’ Compensation Division
May Apply Fee: $500.00-$500.00
Renewal: annual
Type: certificate
Self‑insured employers must file a Certificate of Self‑Insurance annually.
Local Fire Department Annual Inspection
City of Milwaukee Fire Department (example municipality)
May Apply Fee: $0.00-$0.00
Renewal: annual
Type: permit
Inspection includes fire extinguishers, ventilation, and hot‑work permits.
Wisconsin Department of Natural Resources (DNR) Air Emissions Permit Renewal
Wisconsin DNR – Air Management Division
May Apply Fee: $100.00-$100.00
Renewal: annual
Type: permit
Many small shops qualify for a “Minor Source” exemption; verify with DNR.
OSHA 300A Summary Posting
U.S. Occupational Safety and Health Administration (OSHA)
May Apply Renewal: annual
Type: permit
The summary must be posted in a conspicuous place where employees can see it.
Federal & Wisconsin Labor Law Posters
Wisconsin Department of Workforce Development (DWD)
Required Fee: $20.00-$20.00
Renewal: one time
Type: permit
Includes Minimum Wage, Unemployment Insurance, Workers’ Compensation, and anti‑discrimination notices.
Continuing Education / Recertification for Welders
Wisconsin Department of Safety and Professional Services (DSPS)
May Apply Fee: $50.00-$50.00
Renewal: biennial
Type: permit
Employers are responsible for ensuring their welders maintain current certification.
Hazardous Waste Manifest Reporting (if applicable)
Wisconsin Department of Natural Resources – Waste Management
May Apply Renewal: varies
Type: filing
Electronic manifest submission is required.
Federal Partnership Income Tax Return (Form 1065) – if taxed as partnership
Internal Revenue Service (IRS)
May Apply Fee: $500.00-$500.00
Renewal: annual
Type: filing
Schedule K‑1s must be provided to each member.
Wisconsin State Income Tax Return (Form 3) – for partnership‑taxed LLCs
Wisconsin Department of Revenue (DOR)
May Apply Fee: $300.00-$300.00
Renewal: annual
Type: filing
Must attach a copy of the federal Form 1065.
Record‑Keeping Retention Requirements
Wisconsin Department of Revenue (DOR) & Internal Revenue Service (IRS)
Required Renewal: one time
Type: permit
Electronic records are acceptable if they are accurate and retrievable.
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