Sole Trader vs Limited Company for Tradesmen - Which is Better in 2026?

The question every tradesman eventually asks

You start out as a sole trader because it's simple. Register with HMRC, do the work, send invoices, file one tax return a year. Job done.

Then your mate tells you he saved thousands by going limited. Your accountant mentions it. You Google it at midnight and end up more confused than when you started.

So which is actually better? The honest answer: it depends on how much you earn, how much risk you carry, and how much admin you're willing to deal with.

This guide lays it all out so you can make the right call for your situation.

Sole trader - the basics

As a sole trader, you ARE the business. There's no legal separation between you and your trade. You keep all the profits, but you're also personally responsible for all the debts.

How it works:

• Register with HMRC for Self Assessment
• Pay Income Tax and National Insurance on your profits
• File one Self Assessment tax return per year (deadline: 31 January)
• You can use your own name or a trading name (e.g. "Smith Plumbing")

What you pay (2025/26):

Tax	Rate
Income Tax	0% up to £12,570, 20% up to £50,270, 40% above
Class 2 NICs	£3.45/week
Class 4 NICs	6% on profits £12,570 - £50,270, 2% above

For more detail on how this works, see our self-employed plumber tax guide.

Limited company - the basics

A limited company is a separate legal entity. You're a director (and usually the only shareholder). The company earns the money, pays Corporation Tax, and then you take money out as a combination of salary and dividends.

How it works:

• Register with Companies House (costs £12 online)
• The company files Corporation Tax returns and annual accounts
• You file a personal Self Assessment for your salary and dividends
• Your name and company details are on the public register

What the company pays:

Tax	Rate
Corporation Tax	19% on profits up to £50,000, 25% on profits £50,000 - £250,000 (marginal relief applies), 25% above £250,000

What you pay personally:

Income type	Rate
Salary up to £12,570	0% Income Tax (but NICs apply above £12,570)
Dividends up to £500	0% (dividend allowance)
Basic rate dividends	8.75%
Higher rate dividends	33.75%

Side-by-side comparison

Factor	Sole trader	Limited company
Setup cost	Free	£12 (Companies House)
Annual admin	1 tax return	Corporation Tax return + personal tax return + annual accounts + confirmation statement
Accountant cost	£150 - £400/year	£800 - £2,500/year
Tax efficiency	Simple but higher tax	More tax-efficient above ~£50k profit
Personal liability	Unlimited - your personal assets are at risk	Limited to company assets (mostly)
Public information	Private	Director name, address, and accounts are public
Getting paid	Immediate - profit is yours	Must pay yourself via salary/dividends
Mortgages/loans	Easier to prove income	Banks sometimes want 2-3 years of accounts
IR35 risk	No	Yes, if most income comes from one client
VAT threshold	Same: £90,000	Same: £90,000

The tax comparison - real numbers

This is what most people want to know. Let's compare the take-home pay at different profit levels.

Scenario 1: £30,000 profit

Sole trader:

• Income Tax: £3,486
• NICs: £1,225
• Total tax: £4,711
• Take home: £25,289

Limited company (paying yourself £12,570 salary + dividends):

• Corporation Tax (19%): £5,700
• Salary tax: £0 (within personal allowance)
• Employer's NICs on salary: ~£0 (salary at threshold)
• Dividend tax: ~£1,250
• Total tax: ~£6,950
• Take home: ~£23,050

Winner at £30k: Sole trader (by about £2,200)

Scenario 2: £50,000 profit

Sole trader:

• Income Tax: £7,486
• NICs: £2,625
• Total tax: £10,111
• Take home: £39,889

Limited company:

• Corporation Tax (19%): £9,500
• Salary tax: £0
• Dividend tax: ~£2,750
• Total tax: ~£12,250
• Take home: ~£37,750

Winner at £50k: Sole trader (by about £2,100) - but the gap is closing

Scenario 3: £70,000 profit

Sole trader:

• Income Tax: £15,486
• NICs: £3,025
• Total tax: £18,511
• Take home: £51,489

Limited company:

• Corporation Tax (25% marginal rate): ~£15,200
• Salary tax: £0
• Dividend tax: ~£4,200
• Total tax: ~£19,400
• Take home: ~£50,600

Winner at £70k: Roughly equal - but company gives liability protection

Scenario 4: £100,000 profit

Sole trader:

• Income Tax: £27,486 (plus loss of personal allowance above £100k)
• NICs: £3,625
• Total tax: ~£33,000
• Take home: ~£67,000

Limited company:

• Corporation Tax: ~£22,750
• Salary + dividend tax: ~£6,800
• Total tax: ~£29,550
• Take home: ~£70,450

Winner at £100k: Limited company (by about £3,400)

Note: These are simplified calculations. Your actual figures will depend on your specific expenses, pension contributions, and other factors. Always get advice from a qualified accountant.

The real reasons to go limited (beyond tax)

1. Limited liability

This is the big one that people overlook when they only think about tax.

As a sole trader, if a customer sues you for £50,000 because of a botched boiler install, they can go after your personal savings, your house, everything. Yes, you should have insurance - but insurance doesn't cover everything and policies have limits.

As a limited company director, your personal assets are protected (in most cases). The company is liable, not you personally. For tradespeople doing work where things can go seriously wrong - gas work, electrical, structural - this matters.

2. Professional image

Some commercial clients and main contractors prefer working with limited companies. It can make you look more established and credible, especially for larger contracts.

3. Tax planning flexibility

With a limited company, you can:

• Leave profits in the company and draw them out in a tax-efficient way over time
• Make pension contributions through the company (Corporation Tax deductible)
• Split shares with a spouse to use their tax allowances
• Choose when to take dividends based on your other income that year

4. Selling the business

If you ever want to sell your plumbing business, a limited company is much easier to sell than a sole trader business. The buyer purchases the company (shares), not individual assets.

The real reasons to stay sole trader

1. Simplicity

One tax return. No Companies House filings. No annual accounts. No confirmation statements. No separate bank account legally required (though you should have one anyway). The admin difference is significant.

2. Lower accountant costs

A sole trader tax return costs £150-£400. Limited company accounts cost £800-£2,500. That's £500-£2,000 a year in extra costs before you've saved a penny in tax.

3. Privacy

Sole trader details are private. Limited company director details, registered address, and annual accounts are publicly available on Companies House. Anyone can look up what your company earns.

4. Mortgage applications

Mortgage lenders often prefer sole traders because the income is straightforward - it's your profit, full stop. With a limited company, lenders may only count your salary (not dividends), or require 2-3 years of company accounts. This can make it harder to borrow, especially in your first couple of years as a company.

5. Cash flow

As a sole trader, the money you earn is yours immediately. With a limited company, you need to pay yourself formally through salary and dividends, maintain a business bank account, and keep company money separate from personal money.

When to make the switch

There's no magic number, but here's a practical guide:

Stay sole trader if:

• Your profits are consistently under £50,000
• You work alone and don't plan to take on employees
• You value simplicity over tax optimisation
• You're planning to apply for a mortgage soon

Consider going limited if:

• Your profits are consistently above £50,000-£60,000
• You want limited liability protection
• You work on high-value or higher-risk contracts
• You want to bring on a business partner or employees
• You're thinking about selling the business one day

Don't rush into it. The tax savings at lower profit levels don't justify the extra admin and accountant costs. And once you're limited, going back to sole trader is messy.

The switching process

If you decide to go limited:

1. Register your company at Companies House (£12 online, takes about 24 hours)
2. Register for Corporation Tax with HMRC (within 3 months of starting to trade)
3. Open a business bank account in the company name
4. Set up payroll to pay yourself a salary (you can use basic payroll software or ask your accountant)
5. Register for VAT if your turnover is above £90,000
6. Tell your customers - update your invoices with the company name and registration number
7. Update your insurance - your policies need to be in the company name
8. Keep your sole trader Self Assessment open for the transition year

Your invoicing software should let you update your business details so all future invoices go out under the company name with the correct VAT and company registration numbers.

What about partnerships and LLPs?

If you work with another tradesperson, you could form a partnership (simple, like two sole traders sharing profits) or a Limited Liability Partnership (LLP - gives limited liability like a company but with partnership flexibility). These are less common for tradespeople but worth knowing about if you're going into business with someone.

Key takeaways

• Below £50k profit: stay sole trader - it's simpler and often cheaper overall
• Above £60k profit: consider going limited - the tax savings start to justify the extra admin
• Limited liability protection matters if you do high-risk work (gas, electrical, structural)
• Factor in accountant costs (£800-£2,500/year extra) when calculating savings
• Don't switch for tax alone - consider liability, admin, privacy, and mortgage implications
• Always get advice from a qualified accountant before making the switch
• Use sole trader software to keep your finances organised regardless of which structure you choose

Disclaimer: This guide is for general information only. Tax rules change and individual circumstances vary. Always consult a qualified accountant before making decisions about your business structure.