Last updated 2026-08-21
TL;DR
Florida issues no statewide license called mobile welder. You still need a legal business (usually a Sunbiz LLC), an EIN, a local business tax receipt, insurance that matches the truck, and a contractor license only when the job is Chapter 489 contracting. Costs follow the truck and machine, not the forms. Paper can take days. The rig takes longer. Confirm every fee with the board that collects it.
How do you start a mobile welder in Florida?
You start a mobile welder in Florida by forming a legal business, getting an EIN, paying the local business tax where you work, insuring the truck, and taking jobs that match that paper. Florida issues no card titled mobile welder. The work is legal when the entity, the tax, the insurance, and (if it is construction) the contractor license all line up.[1][3]
Form an LLC on Sunbiz before you print door magnets. A sole prop can operate, but the LLC is cheap paper and it keeps a bad job from hitting your house as fast. File online. Confirm the live filing fee on the Division of Corporations articles page before you pay.[3]
Get an EIN from the IRS the same day. It costs nothing. Use it on the bank account, the insurance application, and the county receipt. Do not pay a reseller for an EIN.[4]
Then call the tax collector in your home county. Ask for a local business tax receipt (people still say occupational license). Florida Statute 205.032 lets a county levy that tax. Cities can add their own. Rates move by county, so I will not invent one.[2]
Decide if your work is farm repair and trailer work, or if you are bidding building and structure jobs. That split decides whether Chapter 489 contractor rules apply. A wrong call here is how people get fined.[1][10]
Insurance comes next, not last. Commercial auto on a truck that carries cylinders is not a personal policy. If you hire help, read the workers' compensation rules before the first paycheck.[7]
Build the rig after the paper path is in motion. A pretty truck with no county receipt is a hobby.
Want a neighboring-state contrast? Read how to start a mobile welder in Alabama after you finish Florida.
Do you need a license for mobile welder in Florida?
No. Florida issues no statewide occupational license named mobile welder. You can weld for pay without a mobile welder card from Tallahassee. You still need ordinary business paper, and you may need a construction contractor license if the job meets the definition of contracting under Chapter 489. Confirm both with DBPR and your county before you bid structural work.[1][10]
That answer makes people mad, then it saves them money. They want a single card. Florida does not sell that card.
What people mix up is skill paper and state paper. An AWS Certified Welder card is a performance qualification. Shops and GCs ask for it. The State of Florida does not use it as a substitute for a contractor license, and it does not replace a county business tax receipt.[11]
Chapter 489 is the trap. The statute defines a contractor as the person who, for compensation, undertakes to construct, repair, alter, remodel, add to, demolish, subtract from, or improve any building or structure, with listed exemptions. Weld a new stair on a commercial building and you are in that world. Patch a cracked implement on a ranch and you probably are not. Probably is not a defense. Ask CILB or a Florida construction lawyer when the job is close.[1]
Unlicensed contracting is its own offense. Florida Statute 489.127 sets penalties for it. I would not test them to save a filing.[13]
Local governments can still require their own contractor categories or job permits. Miami-Dade, Broward, and a few larger cities run thicker desks than a Panhandle county. Call the building department in the city where the job sits.
So the honest license answer is this: no statewide mobile welder license, yes to business tax receipts, maybe to a CILB contractor license, and always to whatever the site's building official says.
What business paperwork does Florida actually require?
The core stack is an entity filing, an EIN, a local business tax receipt, and a sales tax account if you sell taxable items or taxable services. None of that is a welding test. All of it is how Florida knows you exist.[3][4][5]
Sunbiz is the Division of Corporations. Most mobile welders file Florida LLC articles of organization. The fee is listed on the official e-file page. I will not quote a dollar figure the legislature can change. Confirm it the morning you file. Processing is often fast on a clean online filing. I will not promise a day count.[3]
Banks want the EIN and the Sunbiz proof. Insurers want the same. Counties want a Federal EIN or SSN plus a physical address. A P.O. box alone is a bad plan.
Sales and use tax sits with the Florida Department of Revenue. Florida state sales tax is 6 percent per the Department of Revenue sales tax page. Counties add discretionary surtax. You register on the Department's e-services registration page. Whether a particular weld is taxable depends on the job. Real property improvement and repair of tangible personal property are not the same bucket. A short call to DOR or a Florida CPA is cheaper than a year of guessing.[5][14]
Annual reports on Sunbiz keep the LLC alive. Miss the report and the state can dissolve you.
| Paper | Who issues it | What you confirm |
|---|---|---|
| LLC articles | Sunbiz | live filing fee and status |
| EIN | IRS | free online application |
| Local business tax | County or city | receipt where you operate |
| Sales tax account | FL DOR | which jobs are taxable |
| Contractor license | DBPR CILB | only if Ch. 489 applies |
| Workers' comp | Fla. Stat. 440.02 path | employee count and trade class |
I keep copies in the glove box. Site supers ask. They do not wait for you to drive home.
When does Florida contractor law apply to welding work?
Chapter 489 applies when the work is contracting on a building or structure, unless an exemption fits. It does not apply to every bead you run in Florida. The split is the whole game for a mobile welder.[1][10]
Florida Statute 489.105 is where the definition lives. One sentence of it reads: "Contractor means the person who is qualified for, and is only responsible for, the project contracted for and means, except as exempted in this part, the person who, for compensation, undertakes to, submits a bid to, or does himself or herself or by others construct, repair, alter, remodel, add to, demolish, subtract from, or improve any building or structure..."[1]
Read that again. Building or structure. A gooseneck trailer in a dirt lot is not a building. A handrail on a new warehouse is.
489.113 says you may not engage in contracting unless you are certified or registered. Certified is statewide. Registered is tied to a local license and is more limited. If you need that path, use the Construction Industry Licensing Board process. Confirm current application steps and fees with DBPR. They change forms.[10]
I would not take structural building work as a brand-new mobile welder without the right contractor license and a written scope. The money looks good. The stop-work order does not.
Farm equipment, truck frames, boat trailers, plant maintenance on owner equipment, and many come-weld-this-bracket calls sit outside 489. Still get the county receipt. Still get insurance. Still write a one-page work order that says what you will not do.
Texas treats this differently. If you ever run west, read how to start a mobile welder business in Texas and mobile welder license in Texas.
How much does a mobile welder cost in Florida?
Startup cost for a mobile welder in Florida is mostly the truck and the machine, not the state paper. Paper is small. A used service truck plus an engine-driven welder plus tanks, leads, PPE, and some kind of lift can land from the mid five figures into well over $100,000 if you buy new. Start used.
Nobody publishes a clean Florida mobile welder startup survey I trust. Price the parts yourself.
A used 3/4-ton or 1-ton with a service body in Florida rust and flood country is a wide market. Prices move with mileage, rust, and flood history. I will not invent a sticker. Look at listings the week you buy. Budget a pre-purchase inspection.
A decent used engine-driven welder/generator is the heart of the rig. New units from the big brands run expensive. Used units are everywhere and some are tired. Pay for a compression check.
LLC filing and the county receipt are small next to the truck. Confirm both fees on the agency pages. Sales tax registration is a registration, not a purchase.[3][2][14]
Commercial auto in Florida is not cheap, and a welding truck with gas cylinders is not a commuter car. Get quotes from two commercial writers. Inland marine covers the welder when it is stolen off the bed. Many sites ask for $1 million per occurrence on general liability. That is market custom, not a statute I can cite as a mandate.
PPE, extinguishers, screens, grinders, wire, rod, and gas run a few thousand if you already own a kit. OSHA cares whether you burn the site down.[6]
I would not finance chrome and a show canopy in month one. Make the first truck ugly and paid down.
Want a checklist for the COI and the truck build paper? MobileRigPath sells a $149 one-time Truck-Build + COI Kit at /start. You can also build that folder with a legal pad.
How long does it take to start a mobile welder in Florida?
Paper can take days. The rig takes as long as the truck search. Florida publishes no mobile welder start clock, and I will not invent one. EIN is often same day. A clean Sunbiz LLC filing is often measured in business days. County receipts range from a counter visit to a short wait. Insurance quotes can take a few days if your driving record is simple. None of that is a promise.[3][4]
The slow parts are the ones people skip in forum posts. Finding a truck that is not flooded. Waiting on a welder rebuild. Getting a site to accept your COI. Scheduling an AWS test when a client demands a specific process and position.[11]
If your work is Chapter 489 contracting, add the CILB path. That is experience documentation, exams, financials, and board processing. Confirm current steps with DBPR. I will not quote a board calendar I cannot see.[10]
A realistic solo plan looks like this. Week one: EIN, LLC, insurance quotes, county call. Week two: buy or reserve the truck, bind insurance, print the receipt. The next month: mount the machine, plumb gas, label cylinders, set extinguishers, then take paid work that matches your paper. If the truck hunt goes ugly, stretch that.
Do not take a structural building job on day ten because a buddy needs you Saturday.
California is thicker if you compare notes. See how to start a mobile welder in California.
What insurance and vehicle rules apply to a Florida welding truck?
You need commercial auto that lists the actual truck, liability that matches the sites you enter, and a plan for the gear. Florida hands you no special welder insurance license. Insurers still treat a bed full of acetylene like a real risk. Get the certificate of insurance in the business name that matches Sunbiz.
Personal auto policies exclude business use. Wreck the truck on the way to a paid weld and that exclusion is the whole story.
If you have employees, workers' compensation is a statute problem. Florida Statute 440.02 is where employment and construction industry get defined. Construction can trigger coverage at one employee. Many nonconstruction private employers trip the switch at four. Officer exemptions exist through the Division of Workers' Compensation. File them if they fit. Do not assume a handshake with your cousin is an exemption.[7]
Register the truck correctly with Florida DHSMV. If the GVWR and the work put you into commercial motor vehicle rules, read the Department's commercial motor vehicle compliance page. Interstate work can require a USDOT number. Confirm on the FMCSA Do I need a USDOT number page, not on a forum.[9]
Cylinders ride chained and capped. A rolling bottle in a crash is a headline.
Florida heat cooks regulators and people. Shade the bottles. Drink water.
Do you need AWS certification to weld for pay in Florida?
No. The State of Florida does not require an AWS card to take payment for welding. Shops, mills, and general contractors often do. Those are private specs, not a Tallahassee license.[11]
AWS Certified Welder is a performance test on a specific process, position, and base metal. It expires if you do not keep the continuity record signed. That continuity log is the part new operators forget.
Get the tests that match the work you can actually sell. If you live on farm repair and trailer tongues, a stick test in the positions you run may help you more than a TIG coupon you will never use. If you want structural steel under a GC, they will tell you the code and the positions. Test to that.
OSHA still applies whether you have a card or not. 29 CFR 1910.252 is the welding, cutting, and brazing standard. One line from it is blunt: "If the object to be welded or cut cannot readily be moved, all movable fire hazards in the vicinity shall be taken to a safe place."[6]
Tennessee's license story is not Florida's. Compare with how to start a mobile welding business in Tennessee.
What taxes and local receipts hit a mobile welding business?
Expect a county (and maybe city) local business tax, Sunbiz annual reports, federal income tax, self-employment tax, and Florida sales and use tax when the sale is taxable. Florida has no personal state income tax. That does not mean you skip estimated federal taxes.[2][5]
Florida Statute 205.032 says, in part, "The governing body of a county may levy, by appropriate resolution or ordinance, a business tax for the privilege of engaging in or managing any business, profession, or occupation within its jurisdiction."[2]
Work across county lines and you can owe more than one receipt. Some counties care about your home base. Some care about where the work happens. Ask both. I would rather buy two cheap receipts than argue with a code officer in a parking lot.
State sales tax is 6 percent. Local surtax stacks on top and changes by county. Register with DOR if you will make taxable sales. Repair of tangible personal property is often in a different bucket than improvement to real property. Get a CPA who has seen a welder.[5][14]
Keep invoices that split labor, materials, and job address. If DOR ever asks, that file is the defense.
What should you put on the truck first (and what can wait)?
Put a running engine-driven welder, good leads, fire extinguishers, chained gas, PPE, and a way to invoice on the truck first. Wait on the custom paint and the extra compressor palace. The first paid jobs are usually ugly and close to home.
Most mobile work wants a machine that welds without shore power. A truck-mounted engine drive does that. An inverter that needs a separate generator can work, but now you have two things to fail. I prefer one machine that already makes weld output and auxiliary power.
Carry extinguishers rated for the fuels you carry, a screen, water, and a first aid kit that is not a theater prop. OSHA's welding page is a better read than a gear catalog.[6][8]
A hand winch and a helper will get you through month one. A crane or liftgate is how you stop wrecking your back. Buy it when the jobs require it.
A card reader and a written work order matter more than wrap. Your invoice should carry the LLC name that matches the county receipt.
I would rather have cash in the bank when the transmission goes, which it will, because this is Florida and the truck lives outside.
Arizona is the opposite climate problem. See how to start a mobile welder in Arizona if you are comparing rigs.
How do Florida counties differ for a mobile welder?
Counties differ on the local business tax, on whether the city adds a second receipt, and on how aggressive the building department is about permits. The state statutes read the same in Baker County and Miami-Dade. The desk does not.[2]
Coastal metros have more inspectors, more HOA rules, and more job sites that demand a $1 million COI plus additional insured wording. Rural counties may take your money at the tax collector and wave you on. That ease is not permission to skip insurance.
Flood and wind matter for the truck. A deal truck from a coastal auction can be a rebuilt title with a wet ECU. Pay for a Florida-savvy mechanic. I would not buy a cheap service body that already has rot in the floors.
Parking the rig at home can trip HOA and county code on commercial vehicles in a residential driveway. Ask before you buy the truck. A cheap storage yard is sometimes the real first expense people forget.
Chase storm work after a hurricane and you will meet contractor blitzes and price gouging rules. Do not treat a declared emergency like a free license week. It is the opposite.
For other state paper, see how to start a mobile welder in Arkansas and how to start a mobile welder in Colorado.
What mistakes waste money in year one?
The expensive mistakes are a new truck you cannot keep busy, a personal auto policy, skipping the county receipt, and taking Chapter 489 work without the contractor license. The cheap mistakes are ugly. The expensive ones close the business.[1][13]
Do not buy new in year one unless a lender already owns you and the math is forced. Used iron that runs is how most honest operators start.
Do not pay a random website to register your Florida welding license. There is no statewide mobile welder license to buy. You will get a PDF and a chargeback fight. Use Sunbiz, the IRS, the tax collector, and DOR.[3][4]
Do not ignore continuity on any AWS card you do hold. Do not weld in dry grass in March. Do not leave bottles unchained. Do not hire a helper as a sub when they are clearly an employee under 440.02.[7][6]
Price like you have to replace a windshield and a set of tires this year. Florida roads will collect. If your rate only covers rod and gas, you are volunteering.
Keep the binder current. When a site refuses you at the gate, the failure is usually the COI wording or the expired receipt, not your bead.
MobileRigPath is an independent publisher, not a law firm and not a service company. If you still want the Truck-Build + COI Kit, it lives at /start. The agencies above are the ones who actually stamp paper.
Frequently asked questions
Do you need a license for mobile welder in Florida?
Florida issues no statewide occupational license titled mobile welder. You still need a Sunbiz entity or other legal business, an EIN, a local business tax receipt, and insurance. A CILB contractor license is required only when the job is contracting on a building or structure under Chapter 489. Confirm close calls with DBPR and the local building official.
How much does a mobile welder cost in Florida?
Most of the money is the truck and the engine-driven welder, not state paper. A used rig can start in the mid five figures. A new fancy build can clear $100,000. LLC and county receipt fees are small and listed on the agency pages, so confirm them when you file. Insurance in Florida is a real line item. Get two commercial quotes before you buy the truck.
How long does it take to start a mobile welder in Florida?
Entity and tax paper can take days. EIN is often same day. A clean Sunbiz filing is often measured in business days. County receipts and insurance quotes vary. The truck hunt and the machine mount take longer than the forms. A CILB contractor path, if you need it, adds exams and board processing. Nobody should promise you a start date.
Can I run a mobile welder as a sole proprietor in Florida?
Yes. Florida does not force an LLC on a solo welder. I would still file the LLC because the cost is small next to one ugly lawsuit. You still need the EIN if you want a clean bank account, the county business tax receipt, and insurance in the name you invoice under. Confirm local receipt rules with the tax collector.
Do I need a Florida contractor license to weld farm equipment?
Usually no, because Chapter 489 is about buildings and structures, not a cracked implement in a field. That is still paid work, so you still need the business entity, local receipt, and insurance. If the same customer then asks you to weld a stair on a barn that is a building, stop and re-read 489.105. Ask CILB when the job is close.
Is AWS certification required by the State of Florida?
No. AWS Certified Welder is a private performance test, not a Florida license. GCs and shops often require a specific process and position. Keep the continuity record signed or the card goes stale. OSHA 1910.252 still applies on the job whether you hold a card or not.
Do I charge Florida sales tax on mobile welding?
Sometimes. Florida state sales tax is 6 percent, and counties add surtax. Repair of tangible personal property and improvement to real property are not treated the same. Register with the Department of Revenue if you will make taxable sales, then have a CPA map your actual invoices. Do not copy another welder's tax habit.
What insurance should a Florida mobile welder carry?
Commercial auto on the actual truck, general liability that sites will accept, and inland marine on the machine. Many gates ask for $1 million per occurrence. That is a buyer custom, not a statute I can cite as a mandate. If you have employees, read Fla. Stat. 440.02 before you call them helpers. Get the COI in the Sunbiz name.
Can I work in more than one Florida county?
Yes, but more than one county can want a local business tax receipt. Statute 205.032 lets counties levy that tax. Some care about home base. Some care about where the bead is run. Call the tax collector in each county you will work, and buy the cheap paper before a code officer finds the truck.
Do I need a USDOT number for a welding truck in Florida?
Only if your weight and your work put you under FMCSA rules, especially interstate commerce over their GVWR triggers. A light truck that never leaves Florida is often a different story than a heavy service body running Georgia jobs. Confirm on the FMCSA Do I need a USDOT number page and with Florida DHSMV commercial rules. Do not guess from a forum.
Do I need workers' comp if I work alone in Florida?
A true solo with no employees is a different case than a two-person crew. Construction can trigger coverage at one employee. Many nonconstruction private employers trip the statute at four. Officer exemptions are a filed form, not a handshake. Read Fla. Stat. 440.02 and confirm your facts with the Division of Workers' Compensation before you hire.
Where do I file a Florida LLC for a mobile welder?
File articles of organization with the Florida Division of Corporations on Sunbiz. Use the official e-file page and confirm the live fee that morning. Get a free EIN from the IRS the same day. Then take both documents to the county tax collector and to your insurer. Skip any website that sells a fake Florida welding license.
Can a Florida city stop me if the state has no welder license?
Yes. Cities and counties can require a local business tax receipt, job permits, and, on buildings, a contractor license that matches Chapter 489. A building official can stop unpermitted structural work even if Tallahassee never printed a mobile welder card. Call the building department where the job sits, not only the county where you sleep.
Sources
- Florida Senate, Fla. Stat. 489.105 (2023): Defines contractor as a person who, for compensation, constructs, repairs, alters, remodels, or improves a building or structure, with listed exemptions.
- Florida Senate, Fla. Stat. 205.032 (2023): Authorizes a county to levy a business tax for the privilege of engaging in or managing a business, profession, or occupation in its jurisdiction.
- IRS, Apply for an Employer Identification Number (EIN) online: The IRS issues EINs online at no charge for eligible entities.
- Florida Department of Revenue, Florida sales and use tax: Florida state sales tax is 6 percent, with local discretionary surtax added by county.
- OSHA, 29 CFR 1910.252 Welding, Cutting, and Brazing: Requires movable fire hazards to be taken to a safe place if the object to be welded cannot readily be moved.
- Florida Senate, Fla. Stat. 440.02 (2023): Defines employment and construction industry for Florida workers' compensation, including the one-employee construction trigger and the common four-employee nonconstruction threshold.
- OSHA, Welding, Cutting, and Brazing safety page: OSHA publishes welding, cutting, and brazing safety requirements that apply on jobs regardless of AWS card status.
- FMCSA, Do I need a USDOT number?: USDOT registration depends on interstate commerce and commercial vehicle weight thresholds, which an operator must confirm for the actual truck.
- Florida Senate, Fla. Stat. 489.113 (2023): A person may not engage in contracting unless certified or registered under Chapter 489.
- American Welding Society, Certified Welder program: AWS Certified Welder is a performance qualification on process, position, and base metal, not a Florida occupational license.
- Florida Senate, Fla. Stat. 489.127 (2023): Sets penalties for unlicensed contracting in Florida.
- Florida Department of Revenue, tax registration e-services: Businesses register for Florida tax accounts, including sales and use tax, through DOR e-services.