Choosing between a sole trader vs limited company is one of the most important decisions when starting a business in the UK.
With Making Tax Digital for Income Tax (MTD for ITSA) launching from April 2026, and tax efficiency becoming more important as profits grow, getting this right can save you thousands in tax each year.
In this guide, we break down:
- Key differences
- Pros and cons
- Where you actually save tax
- A £60,000 real example
- How MTD impacts your decision
Sole Trader vs Limited Company: Quick Overview
| Feature | Sole Trader | Limited Company |
|---|---|---|
| Legal status | You = business | Separate legal entity |
| Liability | Unlimited | Limited |
| Tax | Income Tax + NI | Corporation Tax + Dividend Tax |
| Admin | Low | Higher |
| MTD (2026) | Applies | Not applicable (yet) |
Sole Trader: Pros and Cons
✅ Advantages
- Simple setup – Register with HMRC in minutes
- Low costs – Minimal accounting fees
- Less admin – One tax return per year (changing under MTD)
- Full control – Keep all profits
❌ Disadvantages
- Unlimited liability – Personal assets at risk
- Higher tax at scale – Up to 40%+ tax quickly
- MTD burden – Quarterly reporting from 2026
- Less credibility – Some clients prefer limited companies
Limited Company: Pros and Cons
✅ Advantages
- Tax efficiency – Better planning via salary + dividends
- Limited liability – Personal protection
- Professional image – More credibility
- Scalable structure – Easier to grow, add shareholders
❌ Disadvantages
- More admin – Companies House + HMRC filings
- Higher accounting costs
- Public records – Company info visible online
Where Do You Actually Save Tax?
This is the key question most business owners care about.
Let’s look at a realistic £60,000 profit example.
💰 Example: £60,000 Profit (2026)
Scenario 1: Sole Trader
On £60,000 profit:
- Personal Allowance: £12,570
- Taxable income: £47,430
Income Tax:
- 20% on £37,700 = £7,540
- 40% on £9,730 = £3,892
Total Income Tax = £11,432
National Insurance:
- Class 2 ≈ £180
- Class 4 ≈ £3,200
✅ Total tax = ~£14,800
✅ Take-home = ~£45,200
Scenario 2: Limited Company
Assumptions:
- Salary: £12,570 (tax-free)
- Remaining profit: £47,430
- Corporation Tax @ 19%–25% blended ≈ ~22%
Corporation Tax:
≈ £10,400
Remaining profit after tax:
≈ £37,000 (as dividends)
Dividend Tax:
- First £500: 0%
- Basic rate (~8.75%) on most
≈ £3,000–£3,500
✅ Total tax = ~£13,500–£14,000
✅ Take-home = ~£46,000+
📊 Key Takeaway
At £60,000 profit:
- Limited company saves roughly £1,000–£2,000 per year
- Savings increase as profits grow
💡 At £80k–£100k+, the gap becomes significantly larger.
MTD for ITSA (April 2026): Why It Matters
Making Tax Digital for Income Tax is a major shift for sole traders.
If you earn over £50,000:
You must:
- Keep digital records
- Submit quarterly updates (4 per year)
- Submit a final declaration
🔴 Impact on Sole Traders
- Minimum 5 submissions per year
- Must use accounting software
- Increased admin + costs
- More risk of penalties
🟢 Impact on Limited Companies
- Not affected by MTD for ITSA
- Continue with existing Corporation Tax system (for now)
⚠️ Big Shift in 2026
Previously:
👉 Sole trader = simpler
From 2026:
👉 Sole trader = similar admin to a company, but less tax efficient
This is why more businesses are now incorporating earlier.
When Should You Go Limited?
Stay Sole Trader if:
- Profit under £30k–£40k
- Testing a business idea
- Want minimal admin
Go Limited Company if:
- Profit over £40k–£50k
- Want to save tax
- Want liability protection
- Want to avoid MTD admin burden
- Planning to grow
Final Thoughts
The decision between sole trader vs limited company in the UK is no longer just about simplicity—it’s about:
- Tax efficiency
- Compliance under MTD
- Long-term growth
For many businesses, especially above £50k profit, a limited company is now the smarter choice.
Need Help Deciding?
At Atreus Accountants, we specialise in helping business owners:
- Choose the most tax-efficient structure
- Set up limited companies
- Transition from sole trader to limited company
- Stay compliant with MTD