# itcontractorsuk.com > AI-optimized mirror of itcontractorsuk.com containing 25 pages totalling 23,628 words of clean markdown content, structured data, and semantic HTML. Original source: https://itcontractorsuk.com/. Last updated: 2026-06-16T03:17:46.044Z. Each page is available as HTML (with JSON-LD structured data) and Markdown (text-only, ideal for LLMs and RAG). ## Homepage - [Our commitment](/content/site-root.html): Specialist IT contracting portal for UK Contractors. Find contracting guides, free calculators, service providers and expert advice on IT Contractors UK. (945 words) ## Articles & Blog Posts - [honest-payroll-php.html](/content/honest-payroll-php.html) (1 words) - [FCSA vs Professional Passport Accreditation Comparison](/content/fcsa-professional-passport-comparison-php.html): Compare FCSA and Professional Passport accreditation to find the best compliance choice for umbrella companies. (1,235 words) - [CIS Take-Home Pay Calculator](/content/cis-tax-calculator-php.html): Use the CIS take-home pay calculator to estimate your net income after tax and umbrella fees. Download the Excel version for offline use. (892 words) - [Government Response To Tackling Non-Compliance in the Umbrella Company Market](/content/government-response-umbrella-non-compliance-php.html): The government responds to non-compliance in the umbrella company market, outlining key measures and industry implications. (1,244 words) - [Umbrella Company Payslip Checker for UK Contractors](/content/umbrella-payslip-checker-php.html): Check your umbrella company payslip for signs of disguised remuneration. Get a free Compliance Confidence Score and scan for HMRC red flags. (1,496 words) - [Umbrella Company PSL Guide](/content/umbrella-preferred-supplier-lists-psl-php.html): Understand how umbrella companies operate with agency Preferred Supplier Lists (PSLs) and what it means for contractors and recruitment agencies. (1,430 words) - [Why do umbrella employees have to pay Employers National Insurance?](/content/employers-national-insurance-umbrella-php.html): Understand why umbrella company employees cover Employer’s National Insurance and how it affects your take-home pay. (1,223 words) - [Understand Your Umbrella Company Payslip with Example](/content/how-to-check-umbrella-payslip-php.html): In this article, we have explained umbrella payslip in detail, with example and full breakdown. (1,410 words) - [What is the Apprenticeship Levy?](/content/apprenticeship-levy-guide-php.html): The Apprenticeship Levy was first introduced by the government in April 2017 all across the UK to fund new apprenticeships to further boost investment in vocational skills. (1,054 words) - [Are Online Reviews of Umbrella Companies Trustworthy?](/content/understanding-umbrella-company-reviews-php.html): Can you really trust online reviews of umbrella companies? Discover the red flags and secrets behind glowing (or misleading) testimonials. (1,580 words) - [How to register with an umbrella company in the UK?](/content/register-with-umbrella-company-php.html): In this guide we will explain you step-by-step on how to register with an umbrella company. We’ll answer all the necessary umbrella questions and put you on the right path. (1,288 words) - [How to find a compliant umbrella company?](/content/how-to-find-compliant-umbrella-company-php.html): Learn how to spot a compliant umbrella company and what to check to stay safe and avoid tax risks. (1,118 words) - [Umbrella Company vs PEO Explainer Guide](/content/umbrella-companies-peo-php.html): On this page we will explain the difference between an umbrella company and a PEO. (1,108 words) - [How to spot and avoid non-compliant umbrella companies](/content/non-compliant-umbrella-companies-php.html): A practical guide on how to spot and avoid non-compliant umbrella companies, with tips to identify red flags and choose a trusted provider. (978 words) - [How to choose the right Umbrella Company?](/content/how-to-choose-the-right-umbrella-company-php.html): Choosing the right umbrella company in the present scenario has become all the more difficult. Our guide will help you choose the right umbrella company. (907 words) - [Free & Downloadable Calculators for UK Contractors](/content/calculators-php.html): Free and dowloadable calculators and tools for UK contractors, including IR35, umbrella, dividend tax, VAT, and limited company calculators. (1,370 words) - [List of CIS Umbrella Companies in the UK](/content/cis-umbrella-companies-php.html): Compare the best CIS umbrella companies in the UK. Find trusted providers, compare fees and benefits. (1,629 words) - [Umbrella Company Sick Pay Guide](/content/umbrella-company-sick-pay-php.html): Umbrella company contractors need to know and understand the importance of Statutory Sick Pay (SSP) and not leave it for the time when the situation arises. (893 words) - [IT contracting guides and resources](/content/contracting-guides-php.html): Explore IT contracting guides, umbrella company articles, limited company resources, IR35 guidance, tax updates, calculators and practical UK contractor advice. (625 words) - [Free Tools for UK Contractors](/content/contractor-toolkit-php.html): Access IT Contractors UK’s contractor toolkit, including HMRC tax forms, dividend vouchers, mileage claim logs, IR35 checks, payslip tools and contractor document generators. (775 words) - [umbrella-company-holiday-pay-explained-php.html](/content/umbrella-company-holiday-pay-explained-php.html) (1 words) - [umbrella-companies-php.html](/content/umbrella-companies-php.html) (1 words) - [Inside IR35 Calculator (Umbrella Company)](/content/inside-ir35-umbrella-calculator-php.html): Inside IR35 calculator for umbrella contractors. Quickly estimate your take-home pay after tax, NI, and umbrella fees. (405 words) - [404 - Page Not Found](/content/sitemap-xml.html) (20 words) ## Resources - [Full Page Index](/index.html): Browse all cached pages with rich metadata - [About This Cache](/content/about.html): Methodology, technical details, and usage guidelines - [XML Sitemap](/sitemap.xml): Machine-readable sitemap for crawler discovery - [Robots.txt](/robots.txt): Crawler directives