Outside IR35 PHP Contract Jobs

Organisations bring in PHP contractors to build, maintain, and extend web applications using the PHP programming language, which powers a substantial proportion of the world's websites and web applications and remains a significant component of the UK technology contracting market. PHP's dominant presence in content management systems, particularly WordPress, Drupal, and Typo3, as well as its strong position in e-commerce through platforms including Magento, WooCommerce, and Shopify's Liquid extension language, ensures a consistent and broad base of PHP contract demand. Contract engagements range from custom PHP application development and API work using frameworks such as Laravel or Symfony, through to maintenance and extension of legacy PHP applications that represent a significant and ongoing part of the PHP contracting market.

PHP contractors are expected to have strong practical experience developing PHP applications beyond basic scripting, with proficiency in modern PHP standards including PSR compliance, object-oriented design, Composer for dependency management, and PHP 8.x language features. Familiarity with the major PHP frameworks is expected depending on the engagement: Laravel is the most commonly required modern PHP framework; Symfony is the dominant framework in enterprise and government PHP development; WordPress theme and plugin development is a distinct and large segment of the PHP contractor market. Database skills, particularly MySQL or MariaDB, are universally expected alongside PHP. Experience with REST API development, caching strategies using Redis or Memcached, and deployment using Docker and modern cloud hosting platforms is broadly assumed at senior level. Testing with PHPUnit and familiarity with CI/CD pipelines for PHP applications is expected for professional-level roles.

PHP contracting is a large and consistently active market, driven by the enormous installed base of PHP-powered websites and applications across every sector. The WordPress ecosystem alone generates a very substantial volume of PHP contractor demand for theme development, plugin development, and bespoke functionality, particularly in media, publishing, and SME web development. The e-commerce market, particularly Magento and WooCommerce, is another significant source of PHP contract work. Modern PHP framework development using Laravel and Symfony represents the highest-value segment of the PHP contracting market, where rates are competitive with other senior back-end developer disciplines. Rates at the standard PHP development level are more moderate, reflecting the broad supply of PHP developers relative to the more specialist framework and e-commerce segments.

IR35 is UK tax legislation that determines whether a contractor is genuinely self-employed or working in a manner that resembles employment. When a contract is classified as outside IR35, the engagement is treated as a business-to-business arrangement. The contractor operates through their own limited company, invoices for services, and manages their own tax affairs including corporation tax, self-assessment, and VAT where applicable.

Outside IR35 engagements are assessed against three key factors: the degree of control the client exercises over how the work is delivered, whether the contractor has a genuine right to provide a substitute, and whether there is a mutuality of obligation between the parties. Contracts that demonstrate contractor autonomy, project-based delivery, and the absence of ongoing employment obligations are more likely to sit outside IR35. Since April 2021, responsibility for making this determination sits with the end client for medium and large private sector organisations.

On QualityContracts.co.uk, approximately 28% of roles with a stated IR35 status are classified as outside IR35. The proportion varies by sector and role type, with some disciplines seeing a significantly higher or lower share of outside IR35 opportunities. Each listing on this page displays its IR35 status where provided by the hiring organisation.

PHP contracts lean outside IR35 where status is stated, consistent with the broader web development market. Building specific web applications, e-commerce platforms, or content management solutions with PHP and frameworks like Laravel, Symfony, or WordPress creates engagements with clear deliverables. Digital agencies, e-commerce businesses, and publishers commissioning bespoke PHP development are the typical clients. The PHP market has consolidated around contractors with strong framework expertise rather than vanilla PHP skills.

Contract rates for php roles typically range from £350 to £650 per day, depending on the scope of the role, required expertise, and the delivery expectations of the engagement. Rates shown are for outside IR35 engagements and reflect the gross day rate paid to the contractor's limited company before any personal tax obligations.

Over the past twelve months, we have tracked over 150 php contract roles across the site. Of the roles currently listed on our site, around one in four are Outside IR35. Data reviewed up to June 2026.