Sole trader vs limited company, LLC or corporation: when should a freelancer incorporate? (US, UK, Canada)

Most freelancers start as a sole trader or sole proprietor without choosing anything. Sooner or later someone asks whether you should "go limited", form an LLC or incorporate. Here's what each structure means for liability, tax returns and paperwork, from the SBA, IRS, GOV.UK and the Canadian government, and the questions to take to an adviser.

General information, not tax or legal advice. Not written or reviewed by a lawyer or an accountant. The side-by-side summary, the "what changes" table, the adviser questions, the email and all the wording are ours; the official items come from the US, UK and Canadian government pages linked below. They are general rules for any small business, and none of them is a freelance law. None of the official pages we read gives a profit level at which incorporating pays off, so this page doesn't give one either. US state rules, Canadian provincial and territorial rules, partnerships and other countries were not checked. Official pages were read on 2026-10-17.

The short answer

1. If you work for yourself and don't form anything, you're a sole trader (UK) or sole proprietor (US, Canada) by default.
2. A limited company (UK), an LLC (US) or a corporation (US, Canada) is a separate legal entity. It can limit your personal liability for business debts, but it adds filings and rules.
3. As a sole trader, business profit goes on your own tax return. A company or corporation files its own return; a US single-member LLC is taxed like a sole proprietor unless it elects otherwise.
4. Taking money out of a company (salary, dividends, loans) has its own rules.
5. There's no official "incorporate at this profit" figure. Run your real numbers with an accountant before you switch.

On this page

• 1. Sole trader or sole proprietor: the default
• 2. Limited company, LLC and corporation
• 3. Personal liability
• 4. Tax returns by country
• 5. Paperwork and directors' duties
• 6. Paying yourself from a company
• 7. Registering or incorporating
• 8. Switching later
• 9. Side by side
• 10. What changes on your paperwork
• 11. Questions to ask an adviser
• 12. Email to copy
• 13. Checklist
• Free tools and kits
• Where the sources differ
• When to get advice
• Related
• Sources

1. Sole trader or sole proprietor: the default

• United States: "A sole proprietorship is easy to form and gives you complete control of your business. You’re automatically considered to be a sole proprietorship if you do business activities but don’t register as any other kind of business." (SBA: Launch your business). "A sole proprietor is someone who owns an unincorporated business by themselves. If you are the sole member of a domestic limited liability company (LLC) and elect to treat the LLC as a corporation, you are not a sole proprietor." (IRS: Sole proprietorships, page date 28-Jun-2026).
• United Kingdom: "Most businesses register as a sole trader or limited company, but there are other ways to set up a business." "A sole trader is the simplest business structure to set up and keep records for." (GOV.UK: Set up a business, page date 2016-08-11). "You will be classed as ‘self-employed’." (GOV.UK).
• Canada: the CRA defines a sole proprietorship as "An unincorporated business entirely owned by one person." (CRA: Definitions for business, page date 2026-06-19). canada.ca: "To learn about your registration requirements and start the registration process, choose your planned business type:"
  • Corporation (federal or provincial/territorial)
  • Sole proprietorship or partnership
  • Cooperative
  (Canada.ca: Registering your business with the government, page date 2024-07-29).

The SBA's own view: "Sole proprietorships can be a good choice for low-risk businesses and owners who want to test their business idea before forming a more formal business." (SBA). Your status as self-employed depends on how you work with each client, not on the structure: see employee or independent contractor.

2. Limited company, LLC and corporation

• UK limited company: "A limited company is legally separate from the people who own it, and is run by one or more directors." (GOV.UK: Set up a business). "Limited companies can apply for business loans and investments." (GOV.UK: Set up a private limited company, page date 2025-02-03).
• US LLC: "A limited liability company (LLC) is a business structure allowed by state statute. Legal and tax considerations enter into selecting a business structure." (IRS: Business structures, page date 03-Oct-2026). "Most states also permit “single-member” LLCs, those having only one owner." (IRS: Limited liability company, page date 10-Oct-2026).
• US corporation: "A corporation, sometimes called a C corp, is a legal entity that’s separate from its owners. Corporations can make a profit, be taxed, and can be held legally liable." (SBA). "Designations like S corp and nonprofit aren’t strictly business structures — they can also be understood as a tax status. It’s possible for an LLC to be taxed as a C corp, S corp, or a nonprofit." (SBA).
• Canadian corporation: the CRA definition: "A form of business authorized by federal, provincial, or territorial law to act as a separate legal entity. Its purpose and regulations are set out in its articles of incorporation." (CRA: Definitions for business).

The SBA's own view on LLCs: "LLCs can be a good choice for medium- or higher-risk businesses, owners with significant personal assets they want protected, and owners who want to pay a lower tax rate than they would with a corporation." (SBA). Canada has no LLC in the canada.ca list of business types quoted above.

3. Personal liability

• UK sole trader: "You are personally responsible for all of the debts of the business. This is called ‘unlimited liability’." Limited company: "Company owners are responsible for the debts of the business only up to the value of their financial investment. This is called ‘limited liability’." (GOV.UK: Set up a business). "A limited company has ‘limited liability’ which means owners are responsible for business debts only up to the value of their financial investment. This can give you protection if things go wrong." (GOV.UK: Set up a private limited company). GOV.UK adds that either way you may need business insurance.
• US sole proprietor: "Sole proprietorships do not produce a separate business entity. This means your business assets and liabilities are not separate from your personal assets and liabilities. You can be held personally liable for the debts and obligations of the business." LLC: "LLCs protect you from personal liability in most instances, your personal assets — like your vehicle, house, and savings accounts — won’t be at risk in case your LLC faces bankruptcy or lawsuits." Corporation: "Corporations offer the strongest protection to its owners from personal liability, but the cost to form a corporation is higher than other structures. Corporations also require more extensive record-keeping, operational processes, and reporting." (SBA).
• Canada: the canada.ca and CRA pages we read describe a corporation as a separate legal entity but don't explain personal liability, and Corporations Canada's own pages weren't checked for this guide.

"Limited" in these pages is about the business's debts. None of them says a company protects you from everything, so ask a lawyer about anything you sign or guarantee personally.

4. Tax returns by country

United States

"When beginning a business, you must decide what form of business entity to establish. Your form of business determines which income tax return form you have to file." (IRS: Business structures).

• Sole proprietor: the IRS table of forms you may need lists:
  • Income tax: 1040, U.S. Individual Income Tax Return and Schedule C (Form 1040 or 1040-SR), Profit or Loss from Business
  • Self-employment tax: Schedule SE (Form 1040), Self-Employment Tax
  • Estimated tax: 1040-ES, Estimated Tax for Individuals
  (IRS: Sole proprietorships). See our Schedule C guide and self-employment tax calculator.
• Single-member LLC: "For income tax purposes, an LLC with only one member is treated as an entity disregarded as separate from its owner, unless it files Form 8832 and elects to be treated as a corporation. However, for purposes of employment tax and certain excise taxes, an LLC with only one member is still considered a separate entity." (IRS: Limited liability company). "An individual owner of a single-member LLC that operates a trade or business is subject to the tax on net earnings from self employment in the same manner as a sole proprietorship." (IRS: Single member limited liability companies, page date 27-Jul-2026). The SBA puts it this way: "Profits and losses can get passed through to your personal income without facing corporate taxes. However, members of an LLC are considered self-employed and must pay self-employment tax contributions towards Medicare and Social Security." (SBA).
• C corporation: "For federal income tax purposes, a C corporation is recognized as a separate taxpaying entity." "The profit of a corporation is taxed to the corporation when earned, and then is taxed to the shareholders when distributed as dividends. This creates a double tax." Its income tax return is Form 1120 (IRS: Corporations, page date 17-Jun-2026).
• S corporation: "S corporations are corporations that elect to pass corporate income, losses, deductions, and credits through to their shareholders for federal tax purposes." "In order to become an S corporation, the corporation must submit Form 2553, Election by a Small Business Corporation signed by all the shareholders." Its return is Form 1120-S (IRS: S corporations, page date 11-Jun-2026). "S corps must file with the IRS to get S corp status, a different process from registering with their state." (SBA).

United Kingdom

• Sole trader: "When you submit your Self Assessment tax return HM Revenue and Customs (HMRC) will work out if you need to pay Income Tax and National Insurance contributions based on your profits." (GOV.UK: Set up as a sole trader, page date 2015-02-09). "Sole traders do not pay Corporation Tax." (GOV.UK). See UK Self Assessment for freelancers and National Insurance for the self-employed.
• Limited company: "The company will need to pay Corporation Tax on any profits." "Directors may need to pay Income Tax depending on how they take money out of a limited company (for example, paying themselves a salary, dividends or a directors’ loan)." "Company directors may be employees of the company or office holders" (GOV.UK: Set up a business).

Canada

• Sole proprietor: "Self-employment income is reported on line 13500 to line 14300 of your income tax and benefit return. This income may be earned from a business you operate yourself as a sole proprietorship or with someone else as a partnership." (CRA: Sole proprietorships and partnerships, page date 2026-08-31). See our Form T2125 guide.
• Corporation: "All resident corporations (except tax-exempt Crown corporations, Hutterite colonies and registered charities) have to file a corporation income tax (T2) return every tax year even if there is no tax payable." (CRA: Corporation income tax return, page date 2026-04-09). The CRA's corporations hub (page date 2026-09-11) covers payments, rates and dates; we didn't restate them.

5. Paperwork and directors' duties

UK: "As a director of a limited company, you must:"

• follow the company’s rules, shown in its articles of association
• keep company records and report certain information
• prepare your annual accounts
• complete your Company Tax Return
• file your accounts and your Company Tax Return
• tell other shareholders if you might personally benefit from a transaction the company makes
• pay Corporation Tax

"You can hire other people to manage some of these things day-to-day (for example, an accountant) but you’re still legally responsible for your company’s records, accounts and performance." "You may be fined, prosecuted or disqualified from being a company director if you do not meet your responsibilities." (GOV.UK: Running a limited company, page date 2025-01-29).

US: "If your business is a limited liability company (LLC), corporation, partnership, or nonprofit corporation, you’ll probably need to register with any state where you conduct business activities." "If your business is an LLC, corporation, partnership, or nonprofit corporation, you’ll need a registered agent in your state before you file." (SBA). "Compare the general traits of these business structures, but remember that ownership rules, liability, taxes, and filing requirements for each business structure can vary by state." (SBA).

Canada: "To register as a corporation, you will need to:"

• incorporate your business (obtain your articles of incorporation) through federal incorporation or provincial/territorial incorporation
• get a federal business number and Corporation income tax account from the Canada Revenue Agency
• register as an extra-provincial or extra-territorial corporation in all other Canadian jurisdictions where you plan to do business
• apply for any permits and licences your business may need

(Canada.ca: Registering a corporation, page date 2017-04-13). Plus the yearly T2 return quoted in section four.

6. Paying yourself from a company

As a sole trader or sole proprietor, the profit is simply yours after tax. In a company, the money belongs to the company first.

• Salary: "If you want the company to pay you or anyone else a salary, expenses or benefits, you must register the company as an employer."
• Dividends: "A dividend is a payment a company can make to shareholders if it has made a profit." "Your company must not pay out more in dividends than its available profits from current and previous financial years." "To pay a dividend, you must:"
  • hold a directors’ meeting to ‘declare’ the dividend
  • keep minutes of the meeting, even if you’re the only director
• Directors' loans: "If you take more money out of a company than you’ve put in - and it’s not salary or dividend - it’s called a ‘directors’ loan’."

All three from GOV.UK: Taking money out of a limited company (page date 2025-01-29). For US corporations, start from the IRS pages in section four; for Canadian corporations, the CRA corporations hub. We didn't check how owners of US or Canadian corporations pay themselves.

7. Registering or incorporating

• UK: "You can start trading straight away without registering. However, you must register for Self Assessment as a sole trader if you earn more than £1,000 in a tax year (from 6 April to 5 April). You can choose to register earlier." "Company owners need to register the company before they start trading." (GOV.UK: Set up a business). The step-by-step is on GOV.UK: Set up a private limited company.
• US: "You’ll need to choose a business structure before you register your business with the state." "Your business structure affects how much you pay in taxes, your ability to raise money, the paperwork you need to file, and your personal liability." (SBA).
• Canada, sole proprietor: "To register as a sole proprietor or partnership, you may need to:"
  • register your business with the provinces and territories where you plan to do business
  • get a federal business number and tax accounts
  • apply for any permits and licences your business may need
  "In some cases, sole proprietorships operating under the name of the business owner do not need to register." (Canada.ca: Registering a sole proprietorship or partnership, page date 2024-02-06).
• Canada, corporation: "You can incorporate your business at the federal level with Corporations Canada or incorporate in a specific province or territory with the provincial/territorial government." "Despite these advantages, some businesses may choose to incorporate at the provincial or territorial level." (Canada.ca: Choosing between federal and provincial/territorial incorporation, page date 2017-04-13). "When you incorporate federally, you get many of the other registrations you need at the same time." (Canada.ca: Incorporating federally, page date 2024-02-06).

Choosing a name is its own step: see freelance business name, trading name and DBA.

8. Switching later

• UK: "You can move from one business structure to another. It’s usually easier to move from being a sole trader to a limited company." "The business structure you choose can affect the way you pay tax and your legal responsibilities." (GOV.UK).
• US: "Choose carefully. While you may convert to a different business structure in the future, there may be restrictions based on your location. This could also result in tax consequences and unintended dissolution, among other complications." "Consulting with business counselors, attorneys, and accountants can prove helpful." (SBA). Changing how an LLC is taxed uses Form 8832: "Generally, an election specifying an LLC’s classification cannot take effect more than 75 days prior to the date the election is filed, nor can it take effect later than 12 months after the date the election is filed." (IRS).
• Canada: the canada.ca pages we read cover registering, not converting a sole proprietorship into a corporation. Ask an accountant.

9. Side by side

Our summary of sections one to eight, not official wording. Partnerships, LLPs and cooperatives are left out.

10. What changes on your paperwork

If you do move to a company or LLC, these are the things freelancers usually have to update (general practice, not an official list):

• UK invoices: "If your company is a limited company, you must include the full company name as it appears on the certificate of incorporation." "If you decide to put names of your directors on your invoices, you must include the names of all directors." (GOV.UK: Invoices, what they must include, page date 2015-08-07). See how to write a freelance invoice.
• US taxpayer forms: "For example, if a disregarded entity LLC that is owned by an individual is required to provide a Form W-9, Request for Taxpayer Identification Number (TIN) and Certification, the W-9 should provide the owner’s SSN or EIN, not the LLC’s EIN." (IRS). See our Form W-9 guide.
• Contracts: see the freelance contract checklist. New bank details: scammers copy these emails, so see payment scams.

11. Questions to ask an adviser

Our list (general practice, not an official list). Take it to an accountant, or a lawyer for the liability and contract questions:

UK off-payroll working rules are covered in employee or independent contractor.

12. Email to copy

For telling clients you're moving to a company. Replace everything in [brackets]. This is ours, not from any government page, and it's not legal advice.

Subject: I'm moving my business to [company name] from [date]

Hi [name],

A quick note before my next invoice: from [date] I'll be working through my company, [company's full legal name]. It's still me doing the work, and our rates and terms stay the same unless we agree otherwise in writing.

From that date, invoices will come from [company's full legal name], [registered address]. If your accounts team needs a new supplier record, tax form or an updated contract, tell me what you need and I'll send it.

My payment details [stay the same / are changing: I'll confirm them by phone before your next payment]. Please don't act on any change of bank details by email alone.

Thanks,
[Your name]
[Company's full legal name]

13. Checklist

• Know your current structure (most freelancers who formed nothing are sole traders or sole proprietors).
• Read the official pages for your country, linked in Sources.
• Asked an accountant to compare the tax each way with your real figures.
• Counted the yearly cost of company accounts, returns and filings.
• Know how you'd pay yourself from a company, and the rules for each way.
• Checked whether you still need business insurance.
• If you switch: contracts, invoices, quotes, tax forms, tax registrations and bank details updated.
• Clients told in writing, with payment details confirmed another way.

Free tools and kits

• Our free invoice generator runs in your browser; nothing you type is sent or saved. Put the company's full legal name in the "from" details.
• Our paid Freelance Billing Kit by Small Rows (US$12, one-time) works for invoicing under a company or LLC: type its full legal name in the "Your name or business name" field, its address in the two address lines and any tax number in "Tax number on invoices", and they print on every invoice. The rest of the kit is built for one self-employed person: the Tax Set-Aside, US quarterly set-aside and UK payments on account tabs are personal savings trackers. It doesn't run payroll, pay dividends, keep company accounts or prepare a company tax return.
• Our paid Quote & Proposal Kit by Small Rows (US$12, one-time) has the same kind of name field for quotes and proposals, so new quotes can show the name you'll invoice under.
• All three kits together: the All-Kits Bundle by Small Rows (US$24, one-time).

Where the sources differ

• Words: the UK says sole trader and limited company; the US says sole proprietorship, LLC and corporation; Canada says sole proprietorship and corporation.
• LLCs: the US LLC is a state-law entity that the IRS taxes in different ways depending on members and elections. The UK and Canadian pages we read don't have an LLC as such.
• Liability: GOV.UK and the SBA explain it; the canada.ca and CRA pages we read don't.
• What we did not check: US state LLC and corporation rules, fees, annual reports and franchise taxes; US partnerships, LLC multi-member rules and how owners of corporations pay themselves; UK partnerships, LLPs, Companies House filing details and the off-payroll rules in full; Canadian provincial and territorial incorporation, Corporations Canada's own guidance, corporate tax rates and how owners of Canadian corporations pay themselves; Quebec; the EU and other countries; any profit level at which a company pays off.

When to get advice

• you're thinking about forming a company, an LLC or a corporation;
• a client asks you to work through a company;
• your work carries real risk of claims against you;
• you want to pay yourself through salary, dividends or loans;
• you work in more than one state, province or country;
• you're switching structure in the middle of a tax year.

Talk to an accountant or a lawyer where you work. This page is general information only.

Related

• Freelance business name: trading name, DBA and registering it
• Employee or independent contractor
• Schedule C for US freelancers
• Form W-9 for US freelancers
• UK Self Assessment for freelancers
• Form T2125 for Canadian freelancers

Sources

• United States: SBA: Launch your business (choose a business structure) (no page date shown) · IRS: Business structures (page date 03-Oct-2026) · IRS: Sole proprietorships (page date 28-Jun-2026) · IRS: Limited liability company (LLC) (page date 10-Oct-2026) · IRS: Single member limited liability companies (page date 27-Jul-2026) · IRS: Corporations (page date 17-Jun-2026) · IRS: S corporations (page date 11-Jun-2026)
• United Kingdom: GOV.UK: Set up a business (page date 2016-08-11) · GOV.UK: Set up as a sole trader (page date 2015-02-09) · GOV.UK: Set up a private limited company (page date 2025-02-03) · GOV.UK: Running a limited company (page date 2025-01-29) · GOV.UK: Taking money out of a limited company (page date 2025-01-29) · GOV.UK: Invoices, what they must include (page date 2015-08-07)
• Canada: Canada.ca: Registering your business with the government (page date 2024-07-29) · Canada.ca: Registering a corporation (page date 2017-04-13) · Canada.ca: Registering a sole proprietorship or partnership (page date 2024-02-06) · Canada.ca: Federal or provincial/territorial incorporation (page date 2017-04-13) · Canada.ca: Incorporating federally (page date 2024-02-06) · CRA: Sole proprietorships and partnerships (page date 2026-08-31) · CRA: Corporations (page date 2026-09-11) · CRA: Corporation income tax return (page date 2026-04-09) · CRA: Definitions for business (page date 2026-06-19)

Checked 2026-10-17. Found a mistake? Tell us via Support.