Licensing and insurance requirements for contractors are set entirely at the state and sometimes local level, so there's no single national standard. Here's the general landscape and how to document what you have on your invoices.
Do I need a contractor's license to invoice customers?
Licensing requirements to perform contracting work (and sometimes to invoice for it) vary by state, trade, and job value, so check with your state's licensing board rather than assuming a general rule applies.
There's no federal contractor license — licensing is governed at the state (and sometimes municipal or county) level, and requirements differ widely:
Some states require a license for any paid contracting work above a small dollar threshold
Some trades (electrical, plumbing, HVAC) often require trade-specific licenses even where general contracting doesn't
Some states have no statewide license requirement at all, leaving it to local jurisdictions
Invoicing itself isn't typically the regulated act — performing the work without a required license is usually the actual compliance issue. Check your specific state's contractor licensing board for the requirements that apply to your trade and location.
This is general information, not legal advice. Contractor licensing requirements vary by state and trade — check your state's licensing board for current requirements.
What insurance does a contractor need?
Most contractors carry general liability insurance at minimum, and many also need workers' compensation insurance if they have employees, but exact requirements vary by state, trade, and whether you have employees.
Common insurance categories contractors typically consider:
General liability (GL) — covers property damage or injury claims from your work; often required by customers, landlords, or licensing boards
Workers' compensation — covers employee injuries; required in most states once you have employees, with rules varying for solo owner-operators
Commercial auto — covers work vehicles
Tools/equipment coverage — covers theft or damage to your equipment
Exact requirements — what's mandatory versus optional — depend on your state, trade, and business structure. Consult a licensed insurance agent or your state's licensing authority for what's specifically required for your situation.
This is general information, not legal or insurance advice. Consult a licensed insurance agent or your state licensing authority about required coverage.
Can I put my license number on my invoices?
Yes — many states require or recommend displaying your license number on invoices and contracts, and most invoicing software lets you add it as a custom field.
Several states specifically require licensed contractors to display their license number on invoices, estimates, contracts, and even advertising. Doing so:
Builds customer trust and signals legitimacy
May be a legal requirement in your state, not just a nice-to-have
Makes it easy for a customer to verify your license status if needed
Check whether your state mandates specific placement or format for the license number on customer-facing documents, since this is regulated in some jurisdictions.
This is general information, not legal advice. Check your state's specific requirements for displaying license numbers on customer documents.
BCTM lets you add a custom field for your license number (and insurance details) that displays automatically on every invoice and estimate.
Do I need workers' comp if I'm a solo contractor with no employees?
Requirements vary significantly by state — some states exempt sole proprietors with no employees, while others require coverage for certain trades regardless, so check your state's specific rule.
Whether a solo, no-employee contractor is required to carry workers' compensation insurance depends entirely on state law, and even within a state, rules can differ by trade or by whether you're an owner-operator versus a sole proprietor:
Many states exempt sole proprietors or owners with no employees from mandatory workers' comp
Some states carve out exceptions for higher-risk trades (e.g., roofing) regardless of employee count
Some general contractors or customers require proof of workers' comp coverage even where the state doesn't mandate it, as a condition of hiring you
Check your state's workers' compensation board for the specific rule that applies to your situation, and note that even where it's optional, some customers or GCs may still require it contractually.
This is general information, not legal advice. Workers' compensation requirements for solo contractors vary by state — check your state's workers' compensation board.
How do I show proof of insurance to a customer?
Provide a certificate of insurance from your insurer, and consider attaching it to your customer profile or invoice so it's readily available whenever a customer or GC asks for it.
A certificate of insurance (COI), issued by your insurance provider, is the standard document customers, property managers, and general contractors request as proof of coverage. Practical steps:
1.Request a COI from your insurance agent (often free and quick to obtain)
2.Keep a digital copy readily accessible, not just in a filing cabinet
3.Attach it to customer records or invoices where a customer specifically requests proof before hiring you
Some customers, especially commercial property managers, may want to be named as an "additional insured" on your policy for a specific job — that's a request to route through your insurance agent, not something you can add yourself.
BCTM lets you attach documents like a certificate of insurance to a customer or job record, so it's easy to share when requested.
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