Tax-Efficient Pay for Contractors: Ltd Company vs Umbrella 2025-26
Contractors have two main routes to receiving pay. Limited companies offer significant tax advantages outside IR35 but require more admin. Umbrella companies are simpler but leave more with the taxman.
The Two Main Contractor Structures
UK contractors typically operate through one of two structures:
- Personal Service Company (Ltd Co / PSC): You own and operate your own limited company. You invoice the client or agency through the company and pay yourself a combination of salary and dividends. You pay Corporation Tax on profits.
- Umbrella Company: You become an employee of the umbrella company. The umbrella invoices the client, pays you through PAYE after deducting tax and NI, and charges you a weekly or monthly fee for the service. You have no company admin to manage.
Umbrella Company: How It Works
The umbrella company model is straightforward: your day rate flows to the umbrella, which deducts income tax (at basic and higher rates), employee NI (8%/2%), employer NI (13.8%), and its own margin (typically £20-£50/week). What remains is paid to you via PAYE.
Example at £500/day, 220 days (£110,000 revenue):
- Employer NI (approx): ~£13,000 (on earnings above £5,000)
- Gross pay passed to you: ~£97,000
- Income tax on £97,000 (minus Personal Allowance): ~£27,000
- Employee NI: ~£4,400
- Take-home: approximately £65,000 (59%)
- Plus umbrella fees of ~£1,300/year
Limited Company Outside IR35: How It Works
The optimal structure for a limited company contractor outside IR35 is salary + dividends:
- Pay yourself a salary of £12,570/year (no income tax, minimal employee NI, but allows a CT deduction and keeps you NI-contributing for State Pension)
- Take the remaining profit as dividends after paying Corporation Tax (19% on profits up to £50,000; marginal rate 26.5% on £50k–£250k)
- Dividend tax: £500 tax-free, then 8.75% basic rate, 33.75% higher rate, 39.35% additional rate
Example at £110,000 revenue, £5,000 allowable expenses:
- Salary: £12,570 (fully deductible from CT)
- Pre-CT profit: £110,000 − £12,570 − £5,000 = £92,430
- Corporation Tax (small profits rate): ~£17,561
- Post-CT profit available as dividends: ~£74,869
- Dividend tax (after £500 allowance): £74,369 — first £37,200 at 8.75% (£3,257), remainder at 33.75% (~£12,620) = ~£15,877
- Total take-home: £12,570 (salary) + £74,869 (dividends) − £15,877 (dividend tax) = approximately £71,562 (65%)
With more expenses and careful structuring, many contractors achieve 68-73% take-home outside IR35.
Inside IR35: The Tax Advantage Disappears
If your engagement is inside IR35, the client (or the agency for large/medium clients) applies a "deemed payment" calculation and deducts PAYE income tax and employee NI from your day rate before passing the net to your company. Your company then passes this to you. The result is approximately equivalent to being employed — around 55-60% take-home — with the added overhead of running a limited company. Inside IR35, umbrella is usually the simpler and comparably-priced option.
Overhead Costs of a Limited Company
Running a limited company has fixed costs. Before switching, ensure your day rate makes these worthwhile:
- Accountant fees: £1,000–£2,500/year for a contractor-specialist firm
- Registered office address: £50–£200/year
- Confirmation statement (annual): £13
- Professional indemnity insurance: £200–£1,000/year
- IR35 contract review: £150–£500 per contract
Total overhead: roughly £1,500–£4,000/year. This makes a limited company worth considering only when the annual tax saving exceeds these costs — typically from around £30,000/year revenue upwards, or day rates above £150–200/day.
Frequently Asked Questions
Should I use a limited company or umbrella as a contractor?
Outside IR35, a limited company typically saves £5,000–£15,000 per year in tax at day rates above £400/day. Inside IR35, the advantage largely disappears and umbrella becomes a simpler equivalent. Consider your IR35 status, expected annual income, and appetite for admin before deciding.
What is IR35 and how does it affect me?
IR35 legislation determines whether your engagement resembles employment. Inside IR35 means PAYE taxes apply as if you were an employee — eliminating most of the limited company tax advantage. Outside IR35 means you retain the full benefit of salary and dividend structuring.
What expenses can a contractor claim through a limited company?
Outside IR35: training, equipment, business travel, professional subscriptions, accountancy, insurance, and home office costs. Inside IR35: very limited — most expenses are disallowed, making the expense deduction benefit negligible.