UK Contractor Resources
IR35, Tax Optimisation, and Real Contractor Stories
Navigate IR35, optimise your tax position, and understand your rights as a UK contractor. Calculate your true take-home pay and make informed decisions.
Take Home Calculator
Calculate your take-home pay as a contractor in the UK, comparing different working modes.
Allowable business expenses (contractors only)
Gross Annual Salary
£115,000
PAYE Employment
Monthly Gross
£9,583
Monthly Net
£6,312
Deductions
£3,271
£75,749 annually
Annual Breakdown:
Contractor (Outside IR35)
Monthly Gross
£9,583
Monthly Net
£6,371
Deductions
£3,212
£76,452 annually
Annual Breakdown:
Contractor (Inside IR35)
Monthly Gross
£9,583
Monthly Net
£5,323
Deductions
£4,260
£63,877 annually
Annual Breakdown:
Difference vs PAYE (Per Year)
Outside IR35
£702
Inside IR35
-£11,873
Want to compare contracting with PAYE employment side-by-side? Try our PAYE vs Contract Calculator →
Quick Reference Examples
See how contracting compares to PAYE at key UK tax thresholds
Basic Rate Example
Within the Basic Rate tax band (20%)
Day Rate
£150
Annual Gross
£35,000
Savings vs PAYE
Higher Rate Example
Entering the higher rate tax band (40%)
Day Rate
£500
Annual Gross
£115,000
Savings vs PAYE
Additional Rate Example
Well into higher rate, approaching additional rate
Day Rate
£700
Annual Gross
£161,000
Savings vs PAYE
Why Inside IR35 Can Be Worse Than PAYE
Many contractors are surprised to find that working inside IR35—especially through an umbrella company—can actually leave them worse off than a permanent PAYE employee on the same gross pay. This is because umbrella workers pay both employee and employer National Insurance, umbrella fees, and lose access to most tax-efficient expenses and allowances. As a result, contractors should target higher contract rates than they would for equivalent PAYE roles to maintain their take-home pay.
- Umbrella fees: Typically 4–5% of gross pay, deducted before tax
- Employer NI: Deducted from your contract rate, unlike PAYE where the employer pays it
- Limited expenses: Most business expenses are not claimable inside IR35
Why Outside IR35 Still Offers Tax Advantages
Contractors working outside IR35 through their own limited company can still benefit from several tax advantages:
- Dividends: Profits can be taken as dividends, taxed at lower rates than salary
- Corporation tax: Company profits are taxed at 20%, often lower than higher-rate income tax
- Business expenses: Legitimate expenses (equipment, training, travel) are fully deductible
- Pension contributions: Company can pay directly into your pension, reducing taxable profits
- Spreading income: Flexibility to manage salary/dividend mix and timing
These advantages mean that, even at the same gross rate, outside IR35 roles can deliver significantly higher take-home pay than both inside IR35 and PAYE employment.
Essential Contractor Resources
PAYE vs Contract
Compare permanent employment with contracting roles. Calculate the true financial difference including pensions, holidays, and tax.
Compare now →Inside vs Outside IR35
See the financial impact of IR35 status. Compare umbrella company (inside) with limited company (outside) take-home pay.
Compare IR35 →Tax Optimisation
Discover strategies to maximise your take-home pay, including salary sacrifice pensions, expense claims, and avoiding higher tax brackets.
Optimise now →IR35 Enforcement
Real stories, court cases, and actual HMRC audit experiences. Understand the risks and your rights as a contractor.
Read stories →Make Informed Contracting Decisions
Use our tools and resources to understand your true take-home pay and navigate the complexities of UK contracting.