Latest updates
Strong demand for IT contractors despite market shifts | Outside IR35 roles gaining traction again | Contractors warned on disguised remuneration risks | HMRC steps up enforcement across umbrella and CIS sectors
Our commitment
Built to help contractors make better decisions
IT Contractors UK was created to make contracting easier to understand. We focus on the practical decisions contractors face every day: choosing the right trading route, understanding IR35, checking umbrella company deductions, managing limited company tax, comparing permanent salary against day rate, and finding relevant professional support.
Our content is designed to be useful before a contractor speaks to an accountant, umbrella company, mortgage adviser or insurer. We explain the moving parts in plain English, provide calculators where numbers matter, and highlight the questions contractors should ask before making a decision.
The aim is not to overwhelm contractors with jargon. The aim is to give clear, structured and commercially useful information so that contractors can approach important decisions with confidence.
Plain-English guidance
We explain contractor topics in practical language so readers can understand the decision, the risk and the next step.
Practical tools
Our calculators, checkers and templates are designed to help contractors model real-world scenarios quickly.
Compliance-first mindset
We avoid shortcuts and focus on responsible contracting, payroll transparency and proper record keeping.
Referenced by recognised organisations and publications
IT Contractors UK has been cited or referenced by recognised organisations and business publications for insights around contracting, IR35, tax, finance and business practices.
Why contractors trust IT Contractors UK
A dedicated contractor resource built around long-term credibility, community reach and practical tools for UK contracting decisions.
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Supporting UK contractors since launch
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Users served across contractor resources
-96,922+
LinkedIn contractor community members
-97+ yrs
Founder-led experience in contracting, accounting and tax
-48,461+
Contractor queries answered across key topics
UK
Built specifically for UK contractors
Permanent vs contract calculator
Thinking of switching from permanent employment to contracting, or back again? Get a quick benchmark first.
Permanent to contractContract to permanent
Enter your permanent base salary
£Amount
Calculate quick estimate
Quick estimate based on 220 billable days. Open the full calculator for a more detailed comparison.
Contractor calculators
Estimate key contractor numbers quickly, including take-home pay, dividend tax, corporation tax, IR35 impact, CIS deductions and contractor mortgage affordability.
CIS Tax Deduction Calculator Contractor Mortgage calculator Dividend Tax Calculator Limited Company Calculator National Insurance Tax Calculator Sole Trader vs Limited Company Outside IR35 Calculator IR35 Deemed Payment Calculator
Explore all contractor calculators
Contractor toolkit and forms
Practical templates, generators and record-keeping tools designed to save time and support better contractor administration.
HMRC tax forms Dividend voucher template HMRC mileage claim calculator and log CIS invoice and payment voucher generator Accountant change letter Free UK payslip generator Contractor reference letter generator Contractor expense tracker UK
Explore the contractor toolkit
Useful resources and guides
Educational guides for contractors who want to understand the rules, risks and practical steps behind important contracting decisions.
IR35 What is inside and outside IR35? Compliance How to protect your IR35 status Off-payroll How can contractors prepare for off-payroll changes? Umbrella Umbrella Company Regulation 2027 Umbrella Choosing an umbrella company Dividends What does dividend tax mean for contractors?
IT Contractors UK has supported the UK contractor market since 2013 with practical guides, calculators, directories and compliance-conscious resources for contractors and service providers.