Why So Many People Choose This Path
If you’ve ever thought about going out on your own — whether it’s freelancing, consulting, or running a small local business — chances are you’re already a sole proprietor without even realising it. This business structure is by far the simplest way to operate independently. There’s no registration process, no complicated paperwork, and no board meetings to sit through. You just start doing what you do, and you’re in business.
That simplicity is a big part of why so many people start here. You make all the decisions, you keep all the profits, and you answer to nobody but yourself. The flip side, of course, is that you’re also on the hook for everything that goes wrong — debts, lawsuits, losses — all of it lands on you personally. That’s the trade-off, and it’s worth understanding before you dive in.
What Does “Sole Proprietorship” Actually Mean?
In plain terms, a Sole Proprietorship is just one person running an unincorporated business on their own. Legally, you and the business are the same thing — there’s no separation between your personal finances and your business finances. Think of freelance writers, personal trainers, electricians, photographers, or marketing consultants working independently. All of them are likely operating as sole proprietors.
Some very well-known companies actually started this way. Amazon, for instance, began as Jeff Bezos running a small online bookshop before it grew into what it is today. eBay started as Pierre Omidyar’s side project. Kinko’s was a one-man photocopying operation near a university campus. They all eventually transitioned into more formal corporate structures as they scaled — but the sole proprietorship model got them off the ground.
Setting One Up
Getting started is refreshingly straightforward:
Pick a name. Your legal business name is just your own name by default, but you can register a “doing business as” (DBA) name if you want something more marketable or professional. Just check your state or local government’s website to make sure the name you want is actually available.
Sort out any licences or permits. Depending on what you do and where you operate, you may need specific licences. A plumber, a food vendor, and a childminder will all have different requirements. Check your local government’s website for what applies to your situation.
Get an EIN if you need one. Most sole proprietors can just use their Social Security number for tax purposes. But if you’re planning to hire employees, or if you want to keep things more separate, you can apply for an Employer Identification Number (EIN) for free through the IRS.
That’s largely it. No formation documents to file with the state, no articles of incorporation, no ongoing regulatory reporting beyond your standard tax obligations.
How Taxes Work
Taxes as a sole proprietor are actually less complicated than most people expect, though there are a few specific things to know.
Your business income is your personal income. You don’t file a separate tax return for the business. Instead, you report everything on your personal Form 1040. The profit — or loss — from your business flows straight onto your personal return.
Schedule C is your friend. This is the form where you list your business income and subtract your business expenses. If what’s left is positive, you have a profit. If expenses exceeded income, you have a loss. Simple enough.
Self-employment tax is real. Because you’re both the employer and the employee, you pay both sides of Social Security and Medicare taxes yourself. This is the self-employment tax. The good news is that you can deduct half of it when calculating your taxable income, which softens the blow somewhat. You calculate this using Schedule SE.
Quarterly estimated taxes. Unlike salaried employees who have tax withheld from each pay cheque, you need to pay estimated taxes four times a year. The 2025 due dates are April 15, June 16, September 15, and January 15, 2026.
Deductions Worth Knowing About
One of the genuinely useful things about being a sole proprietor is the range of expenses you can deduct directly on Schedule C, which reduces your taxable income. Some of the most commonly used ones include:
- Home office. If you work from home and have a dedicated workspace used exclusively for business, you can deduct a proportionate share of your housing costs — rent, utilities, and so on. It needs to be your primary place of business, and your workspace needs clear boundaries. Your kitchen table doesn’t count.
- Vehicle use. If you drive for business purposes, you can deduct either a standard rate per mile (£0.70 per mile for 2025, up from £0.67 in 2024) or your actual vehicle expenses. Keep records either way.
- Health insurance premiums. Sole proprietors can deduct health insurance premiums for themselves, their spouse, and dependants directly on Schedule 1 of their 1040 — not just as an itemised deduction.
- General business expenses. Rent, utilities, tools, software, professional services, supplies — if it’s a legitimate, ordinary expense for your type of business, it’s likely deductible on Schedule C.
The Honest Pros and Cons
No business structure is perfect for everyone, and sole proprietorship is no different. Here’s a balanced view:
What works in your favour:
- Incredibly cheap and easy to start — no legal fees, no state registration costs
- Complete autonomy over every decision
- Simple tax filing — everything on one personal return
- Easy to wind down if things don’t work out
What you need to watch out for:
- Personal liability. This is the big one. If your business runs into debt or faces a lawsuit, your personal assets — your home, your car, your savings — are fair game. There’s no legal wall between you and the business.
- Harder to get financing. Banks tend to prefer lending to established businesses with credit histories. As a sole proprietor, especially starting out, getting business loans can be an uphill battle.
- Audit risk for high earners. The IRS does scrutinise high-income sole proprietors more closely. If your income climbs into the millions, the audit probability increases meaningfully.
When It Makes Sense — and When to Move On
Sole proprietorship is ideal when you’re just starting out, testing an idea, or running a genuinely small operation where the liability risk is manageable. It’s a perfectly legitimate long-term structure for many people — tradespeople, freelancers, independent consultants, and small service businesses often operate this way their entire careers.
But if your business starts growing, you’re taking on meaningful debt, or you’re worried about personal liability exposure, that’s usually the signal to look at converting to an LLC or another structure that gives you more protection. Most successful businesses begin as Sole Proprietorship precisely because it’s the path of least resistance — and there’s nothing wrong with that.
Conclusion
Additionally, you must send their paychecks to the IRS after deducting income, Social Security, and Medicare taxes. Additionally, employers must pay half of the Social Security and Medicare taxes (FICA taxes) out of their own pockets. Additionally, employers are required to pay each employee’s unemployment taxes (FUTA taxes). There is no paycheck withholding for FUTA taxes because only the employer is liable for them. Every year, you must submit Form 940 to report the FUTA taxes you paid in the preceding year.