· About 2,800 words.

"You're earning over £40k — you should go Ltd" is the most-repeated freelancer advice and it's only half right. The tax saving from incorporating is real but smaller than it used to be, and there are several non-tax reasons (mortgage, IR35, liability, admin appetite) that tilt the decision in either direction. This guide walks the full picture for UK freelancers in 2026.

TL;DR — the headline answer

• Under ~£40k of business profit: stay sole trader. Tax saving is marginal and admin overhead isn't worth it.
• £40k–£60k of profit: borderline. Run the maths; depends on what you draw vs retain.
• £60k+ of profit: Ltd usually saves £2,000–£5,000/year, scaling further at higher income.
• Caveat: if you're inside IR35, mortgage planning, looking to scale, or want personal liability protection, the answer is more nuanced — see below.

The tax breakeven analysis

Two ways your money is taxed:

Sole trader

Business profit = your personal income. Standard UK income tax bands + Class 4 NI:

• £0–£12,570: 0% income tax + 0% NI (personal allowance).
• £12,570–£50,270: 20% income tax + 6% Class 4 NI = 26% combined.
• £50,270–£100,000: 40% income tax + 2% Class 4 NI = 42% combined.
• £100,000–£125,140: 40% + 2% + personal allowance tapers (effective 62% marginal).
• £125,140+: 45% + 2% = 47% combined.

Limited company (tax-efficient setup)

Standard pattern: pay yourself a small director's salary (£12,570, exhausting the personal allowance), then take available profit as dividends.

• Corporation tax: 19% on company profit up to £50,000; marginal 26.5% rate between £50k–£250k; 25% above £250k.
• Director's salary: below personal allowance — no income tax. £12,570 also above NI Lower Earnings Limit so gives you a State Pension qualifying year.
• Dividend tax (after £500 allowance): 8.75% basic / 33.75% higher / 39.35% additional.

The maths depends on what you draw personally vs retain in the company. Use our sole trader vs Ltd calculator to model your specific situation.

Where the breakeven lands

For someone drawing the full company profit each year:

• £40,000 profit: Sole trader tax+NI ~£8,500. Ltd ~£8,200 (incl. accountant fee). Roughly equivalent.
• £60,000 profit: Sole trader ~£17,000. Ltd ~£15,000. Ltd saves ~£2,000.
• £80,000 profit: Sole trader ~£26,000. Ltd ~£22,000. Ltd saves ~£4,000.
• £120,000 profit: Sole trader ~£44,000 (incl. personal allowance taper). Ltd ~£35,000. Ltd saves ~£9,000.

The Ltd advantage grows with income, particularly above the personal allowance taper threshold (£100k+) where sole trader effective marginal rates spike to 62%.

The retained-profits multiplier

Above breakeven figures assume you draw the full company profit each year. The Ltd advantage gets much bigger if you can retain profit in the company:

• Retained profit only pays corporation tax (19–25%).
• Dividend tax (8.75–39.35%) is deferred until you draw it.
• If you draw retained profits in a future year of lower income (sabbatical, between contracts, partial retirement), you may pay less dividend tax — though planning around this is complex and worth advice.

Practical example: £150k profit, draw £55k personally, retain £85k. Tax that year is corp tax on full £150k (~£28k) + personal tax on £55k dividends (~£8k) = £36k. Same person, same business, as sole trader paying all tax: £47k. Ltd saves £11k while leaving £85k working in the business.

The admin overhead

The non-tax cost of going Ltd. What you take on:

• Annual filed accounts at Companies House (legal requirement). DIY-able but most directors use an accountant.
• Corporation Tax return (CT600) annually. Tied to the company's accounting reference date, not the tax year.
• Personal Self Assessment still required (you'll have salary + dividends to declare).
• Payroll if you take a director's salary — RTI submissions to HMRC each month. Most accountants include this in monthly fees.
• Statutory registers (members, directors, persons with significant control) — maintained by your accountant or formation agent.
• Confirmation Statement annually at Companies House (£34 filing fee).
• Separate business bank account (legally required for Ltd — sole traders technically don't need one).

Realistic annual accountant cost for a single-director freelance Ltd: £80–150/month, or £960–£1,800/year. This is an allowable business expense (reduces corp tax).

Time cost: 10–30 minutes per month if your accountant handles year-end, plus monthly bookkeeping (which you should be doing as a sole trader anyway). See our freelance bookkeeping guide.

IR35 implications

IR35 doesn't apply to sole traders — only to people providing personal services through their own limited company or partnership. So going Ltd potentially exposes you to IR35.

For freelancers in the IR35 risk zone (regular contracts with single clients on a "long-term placement" basis), being Ltd-and-inside-IR35 is materially worse than sole trader — you get the Ltd admin overhead with the salary-equivalent tax. The tax advantage disappears.

For freelancers genuinely outside IR35 (multiple clients, project-based work, substitution rights, control over work delivery), Ltd is fine — IR35 doesn't bite.

Check your status: IR35 status checker. Plain-English explainer: inside vs outside IR35.

Mortgage impact

An underappreciated effect. UK mortgage lenders assess Ltd directors differently from sole traders, and the standard high-street route often under-borrows a tax-efficient Ltd setup.

The mechanism:

• Sole trader: lenders use SA302 net profit (typically 2-year average). Higher profit = higher borrowing.
• Ltd standard route: lenders use salary + dividends actually drawn. Tax-efficient "small salary + small dividends + retain" gets assessed on the drawn amount only.
• Ltd specialist route: a handful of lenders (Halifax via brokers, Saffron, Kensington, Aldermore, etc.) use share of company net profit including retained — typically 2–4× more borrowing.

If a mortgage is in your 12–24 month future, this matters. Going Ltd and immediately drawing minimal salary + dividends will under-borrow you unless you find a retained-profits-friendly lender (which requires a broker). See our freelancer mortgage guide and sole trader vs Ltd mortgage comparison.

Personal liability protection

The other big non-tax reason for going Ltd. As a sole trader, you and your business are legally the same person — debts the business incurs are your personal debts; lawsuits against the business pursue your personal assets.

A limited company is a separate legal entity. In normal trading, company debts and lawsuits stop at the company. Your personal assets are protected (with some exceptions — directors who act fraudulently, breach fiduciary duty, or wrongfully trade can still be personally liable).

Relevant if you're in:

• High-risk service categories where lawsuits are possible (financial advice, legal services, healthcare, complex IT consulting).
• Categories where you might take on significant business debt (e.g. financing equipment, signing leases).
• Work that involves your name attached to expensive deliverables.

For pure-service freelancers in low-risk categories (designers, copywriters, marketers, developers building safe products) the liability difference is rarely the dealbreaker. For higher-risk professional services, it's a real factor.

Client expectations

Some corporate clients prefer working with Ltd suppliers — particularly in financial services, large public sector, and certain procurement-heavy industries. The reasons range from "we like the formality" to genuine procurement rules requiring Ltd status.

If your client mix is skewing corporate or you've lost work to "can you set up as a Ltd?" pushback, that's a signal worth taking seriously. In other markets (SME clients, individuals, design/creative agencies, content/marketing), Ltd status is irrelevant.

Scaling considerations

If you're considering eventually employing other people, taking on investors, or selling the business, Ltd is the structure those things happen through. Specifically:

• Employing staff — sole traders can employ people but the structure is messier. Ltd is the standard.
• Taking on investors / partners — only possible via Ltd shares (or a partnership/LLP structure).
• Selling the business — Ltd businesses sell as shares (capital gains treatment, Business Asset Disposal Relief at 10%). Sole trader "sales" are usually goodwill transfers, treated as income.
• Brand-building — Ltd companies have a separate identity independent of you personally.

For pure freelancers who never intend to scale, this matters less. For freelancers planning to grow into a small agency or product business, Ltd is the structural foundation.

Pension contributions

A specific Ltd advantage that's particularly valuable above the higher-rate threshold. Employer pension contributions made by your Ltd company are:

• Allowable business expense (reduces corporation tax).
• Not taxed as benefit-in-kind on you personally.
• Don't trigger NI on either side.

Annual allowance: £60,000/year (or your annual taxable earnings, whichever is lower; £10,000 if you're a high earner with adjusted income > £260k). For a higher-rate Ltd director, this is the most tax-efficient compensation route after the basic salary + dividends.

Sole trader pension contributions get personal tax relief too (claim higher-rate portion via Self Assessment), but the Ltd route is mechanically cleaner.

Decision tree

Run these questions in order:

1. Are you inside IR35 with a single dominant client? If yes, Ltd doesn't help. Stay sole trader (or consider umbrella).
2. Is your annual profit consistently under £40k? If yes, sole trader. Tax saving doesn't justify admin overhead.
3. Are you planning a mortgage application in the next 12–24 months? If yes — be aware that Ltd standard route under-borrows tax-efficient setups. Plan ahead with broker.
4. Are you in a high-liability service category? Ltd's liability protection adds value beyond tax.
5. Do you plan to scale (employ, take investors, sell)? Ltd is the right structure.
6. Profit £60k+ with appetite for admin? Ltd. Saves £2–10k+/year.
7. Otherwise — sole trader for at least another year. Re-evaluate at next year-end.

If the answer is "yes" — what to do next

Practical incorporation playbook:

1. Pick a name — check availability at Companies House (free).
2. Decide directors and shareholders — for a solo freelancer this is "you" for both.
3. Decide accounting reference date — your year-end. Default is one year from the end of the month you incorporated; can be changed.
4. Decide registered office address — your home address (becomes public on Companies House) or a formation agent's address.
5. Incorporate — directly at Companies House for £50, or via a formation agent for similar cost + the address service. Live in 24 hours.
6. Register for Corporation Tax within 3 months of starting to trade.
7. Open a business bank account — Ltd is legally required to have one. See our business banking comparison.
8. Set up payroll for your director's salary (if you're taking one). PAYE registration via HMRC.
9. Get an accountant — most freelance Ltds use one for year-end. £80–150/month.
10. If transitioning from sole trader — formal transfer of business to the Ltd. Accountant should handle.

If the answer is "no" — what to do

You're a sole trader. The freelancer-specific things to get right:

• Register for Self Assessment with HMRC if you haven't.
• Open a separate business bank account even though you don't have to. Massively simplifies bookkeeping.
• Set up the 25% tax pot habit from the first invoice.
• Use proper bookkeeping software or a tidy spreadsheet — see our bookkeeping guide.
• Re-evaluate annually at year-end. The Ltd question deserves a fresh answer each year.

The starter guide: how to start freelancing in the UK.

General educational content. Not regulated tax or financial advice. The right structure for your business depends on your full circumstances — for material decisions consult a qualified accountant.