What is sole proprietorship? Definition, FAQs, and resources

Published Monday 19 October 2026

Table of contents

• What is a sole proprietorship?
• Advantages of a sole proprietorship
• Disadvantages of a sole proprietorship
• Sole proprietorship tax obligations
• How to set up as a sole proprietor
• Sole proprietorship vs company
• Legal considerations and insurance
• Simplify your sole proprietorship finances with Xero
• FAQs on sole proprietorships
• Related terms
• Learn more about sole proprietorship

Key takeaways

• A sole proprietorship is a business that one person owns and runs without forming a separate legal entity, and it's called a sole trader in the UK
• You're personally liable for the business's debts, so your savings and property could be at risk if the business can't pay what it owes
• Business profit is usually taxed through your personal tax return, but the rules vary by country
• As your business grows, moving to a company or limited liability company (LLC) can limit your personal risk and change how you're taxed

What is a sole proprietorship?

A sole proprietorship is an unincorporated business that one person owns and runs, as the IRS describes it. In the UK, the same structure is called a sole trader.

Because it's just you, you keep the profit and carry any debts yourself. In the US, the business has no legal identity separate from you, so you report its profit or loss on Schedule C.

Registering a trading name works differently in each country, and it usually only applies if you trade under a name other than your own. The structure suits freelancers, contractors, consultants and tradespeople who want minimal paperwork and full control from day one.

Advantages of a sole proprietorship

A sole proprietorship has clear benefits, especially when you're starting out or running a smaller operation. Here's what makes it appealing.

Easy and low-cost to set up

Setup costs are usually low, though they vary by country. In many places, you can start trading on your own without a formation filing, so there's little paperwork to begin.

There are no shareholder agreements or formal company documents to draft. That means you can often start trading the same day you decide to.

Simple tax reporting

Your business results usually flow straight into your personal tax return, so there's no separate business return to file. You report income and expenses in a business section or schedule, which keeps your accounting simple and your compliance costs low.

Full control over your business

Every decision is yours, with no partners, directors or shareholders to approve it. If a client asks for a new service, for example, you can add it to your offer that same week.

Keep all profits

You keep all the profit your business makes after expenses and tax, with no dividends or profit shares to split. This direct link between effort and reward can be a strong motivator while you build your client base and reputation.

Privacy of financial information

In the UK, limited companies must file annual accounts with Companies House, and Companies House makes the information it collects public. Sole proprietors generally don't file accounts on a public register, so you can keep your financial information private.

Disadvantages of a sole proprietorship

The structure comes with trade-offs as well as benefits. It's worth understanding them before you commit.

Unlimited personal liability

The business has no legal identity separate from you, so its debts are your own. If it can't pay what it owes, your personal assets could be at risk.

This is the biggest risk of the structure. In the UK, by contrast, limited company owners are responsible for business debts only up to the value of their investment. HMRC notes that their home, car and savings are generally protected.

Harder to raise capital and grow

In the US, the Small Business Administration (SBA) notes that banks may be hesitant to lend to sole proprietorships. You also can't sell shares to raise money.

Growth can also be harder because everything relies on you. Hiring employees spreads the load, though adding partners or co-owners usually means changing your structure.

Higher tax rates at higher income levels

Your profit is taxed as personal income. Whether that costs more or less than company tax depends on your country and profit level. An accountant can compare the numbers for your situation.

No business continuity

The business is tied to you personally. If you become seriously ill, retire or pass away, it doesn't carry on as a separate entity. You also can't pass it on the way you'd transfer company shares.

That can make succession planning harder and may reduce what the business is worth to a buyer.

Work-life balance challenges

When you run everything yourself, work and personal time can blur. You're responsible for every part of the business, including delivering work, sending quotes, chasing invoices and handling admin.

Setting boundaries and automating routine tasks can help you take back time and lower the risk of burnout.

Sole proprietorship tax obligations

Your tax obligations depend on the country you operate in, so check the rules with your local tax authority. The country examples below show how the main areas work in practice.

Income tax for sole proprietors

Your business profit, meaning revenue minus allowable expenses, is usually added to your other income and taxed at personal rates. Each country then adds its own charges on top.

In the US, you also pay 15.3% self-employment tax for Social Security and Medicare once your net earnings from self-employment reach $400.

In the UK, where it's called a sole trader, HM Revenue and Customs (HMRC) works out Income Tax and National Insurance from your Self Assessment. In Canada, you pay personal income tax on your business's net income.

Sales tax, VAT and GST registration

Many countries charge a tax on sales, such as value-added tax (VAT), goods and services tax (GST) or sales tax. Thresholds differ by country, as these examples show.

In the UK, you must register for VAT once taxable turnover passes £90,000. In Canada, the small supplier limit for GST and harmonized sales tax (HST) is $30,000 in Canadian dollars.

Key tax deductions for sole proprietors

You can usually claim deductions for business expenses that relate directly to running your business. Common examples include:

• vehicle and travel costs for business trips
• a share of home office costs if you work from home
• equipment, tools and technology used for the business
• training, professional development and subscriptions
• accounting and tax adviser fees
• business insurance premiums
• marketing and advertising costs

Each country decides which expenses qualify and how much you can claim, so check your tax authority's guidance before you file. Keep records of every expense, because you'll need them to support your claims.

In the US, you generally keep records for three years, though some situations call for longer. In the UK, you keep records for at least five years after the 31 January Self Assessment deadline.

Important tax deadlines

Filing on time helps you avoid penalties, so add your key dates to your calendar at the start of each tax year. Filing and payment dates differ by country and can change from year to year, so check your tax authority's official calendar.

If you work with an accountant or tax adviser, ask whether you qualify for a later filing date.

How to set up as a sole proprietor

Getting started is straightforward, though the details depend on where you live. Follow these five steps to set yourself up properly.

1. Register with your tax authority. In the UK, you register for Self Assessment once you earn over £1,000 from self-employment in a tax year.
2. Register a trading name if you need one. Check local rules if you'll trade under another name, which is called a doing business as (DBA) name in the US.
3. Check whether you need to register for sales tax. Compare your expected sales with your country's VAT, GST or sales tax threshold.
4. Check for licences and permits. Your industry and location decide which licences you need, so check with your local or national government.
5. Open a separate bank account and set up bookkeeping. Keeping business money apart and using a clear chart of accounts makes tax time simpler.

Sole proprietorship vs company

Choosing between a sole proprietorship and a company is one of the biggest early decisions you'll make. Here's how they compare.

Key differences

The two structures differ in almost every area that affects your day-to-day admin. Here are the main differences.

• A sole proprietorship has no legal identity apart from its owner, while a company is usually a separate legal entity
• Sole proprietors have unlimited personal liability, while a company usually offers some protection for owners' personal assets
• Setting up as a sole proprietor is usually low-cost, while forming a company often involves registration fees and formal documents
• Sole proprietors pay personal income tax, while companies usually pay company tax, such as Corporation Tax on profits in the UK
• Sole proprietors file a personal tax return, while companies usually file company returns and keep corporate records
• Sole proprietors keep profits directly, while company profits usually reach owners as salaries or dividends

When to choose a sole proprietorship

A sole proprietorship often suits you if you're starting out and your business carries little risk. It's a good fit when simplicity and low cost matter most.

Consider a company or LLC when you want to protect your personal assets or your profits grow steadily. An accountant can model the tax effects for your country and help you time the change.

Legal considerations and insurance

A sole proprietorship is simple to run, and you still have legal responsibilities. Knowing them helps you protect yourself and your business.

You need to follow the laws that apply to your industry and location. These typically include consumer protection laws and workplace health and safety rules, especially if you have staff or work on client sites.

Insurance requirements vary by country and industry, and the right cover can protect you from costly claims. The UK government's guide to insuring your business covers common types, including:

• public liability insurance, which covers claims if someone is injured or their property is damaged because of your work
• professional indemnity insurance, which protects you if a client says your advice or service caused them financial loss
• employers' liability insurance, which UK law requires if people work for you
• business insurance, which covers your tools, equipment and stock against loss or damage

Because you carry unlimited personal liability, insurance is one of the most practical ways to protect yourself. A broker who works with small businesses can help you choose the right level of cover.

Simplify your sole proprietorship finances with Xero

Running a sole proprietorship means you handle the finances alongside everything else. The right tools save you time and help you stay on top of your tax obligations.

Xero is online accounting software built for small businesses like yours. You spend less time on bookkeeping with automatic bank feeds, and your records stay organised all year, so tax time is less stressful.

Real-time reports show how cash is flowing in and out, so you can make confident decisions and spend more time growing your business. See how much easier your admin can be when you get one month free.

FAQs on sole proprietorships

Here are answers to common questions about running a sole proprietorship.

Can I switch to a company later?

Yes, you can move to a company or LLC as your business grows. Transferring assets into a new company can have tax consequences, so speak to an accountant before you make the change.

Can a sole proprietor have employees?

Yes, and you'll take on employer duties when you hire. In the US, you need an employer identification number (EIN) to hire staff; in the UK, you register with HMRC as an employer.

Is a sole trader the same as a sole proprietor?

Yes, they're two names for one structure: a single person running an unincorporated business. If you freelance on your own without setting up a company, the label likely applies to you.

Do I need to register for VAT, GST or sales tax?

It depends on your country's rules, which usually look at how much you sell and what you sell. Track your sales total throughout the year so you can register before you reach the threshold.

Do sole proprietors pay into a retirement or pension plan?

You're responsible for your own retirement savings, since you're both the owner and the worker. Ask your accountant which self-employed pension or retirement options are available in your country and how contributions are taxed.

Related terms

• Business accounting
• Retained earnings
• Assets

Learn more about sole proprietorship

• Business structure
• Double-entry bookkeeping