Inside IR35 Contract Jobs in London
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716 Contract jobs sorted by:
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Date Posted
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716 Contract jobs
Front End Engineer (React/TypeScript) - 12 months - Leeds/Manchester/London - In...
Posted 1 day ago by Hamilton Barnes
Key ResponsibilitiesOwn, lead, and drive a feature of the internal developer portal, building Front End applications in...
- Rate £475 per day
- Category Inside
- Work type Hybrid
- Location London/Leeds/Manchester
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DevOps Engineer (Active SC) | Gov Project | £440 p.d (Inside IR35) | UK-Based Ro...
Posted 1 day ago by Futureheads
Role: DevOps EngineerDay Rate: £440 p.d (Inside IR35)Client: Dept of UK GovernmentLocation: Remote with 1 day per month...
- Rate £440 per day
- Category Inside
- Work type Hybrid
- Location London, Birmingham, Sheffield (Likely to alternative monthly)
Security Engineer - Hybrid - London/Bristol/Manchester/Leeds - Inside IR35
Posted 1 day ago by iBSC
Contract: 6 months RollingLocation: London, Bristol, Manchester or LeedsWorking Pattern: Hybrid - 2 days per week onsite...
- Rate Not specified
- Category Inside
- Work type Hybrid
- Location London/Bristol/Manchester/Leeds
Programme Delivery Manager (P3M/Government/Digital/Transformation)
Posted 1 day ago by Agilesource Ltd
Programme Delivery Manager required -this two-year programme is designed to support places with some of the key digital...
- Rate £825 per day
- Category Inside
- Work type Remote
- Location London or Manchester
Senior React & .NET Technical Lead | Databricks Apps - 6 Month contract potentia...
Posted 1 day ago by Templeton and Partners
We're seeking a highly experienced Senior React & .NET Technical Lead to join a major transformation programme, help...
- Rate £800 per day
- Category Inside
- Work type Hybrid
- Location London
Security Data Scientist - Knowledge Graphs/GenAI - Hybrid - London/Bristol/Manch...
Posted 1 day ago by iBSC
Contract: 6 months RollingLocation: London, Bristol, Manchester or LeedsHybrid: 2 days per week onsiteInside IR35Key ski...
- Rate Not specified
- Category Inside
- Work type Hybrid
- Location London/Bristol/Manchester/Leeds
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About Our Inside IR35 Contract Roles in London
What is the contracting market like in London?
London dominates the UK contractor market by volume, depth, and rate levels. The capital concentrates the headquarters and major offices of most FTSE 100 companies, the largest global banks, the Big Four professional services firms, and the central government departments that collectively generate the majority of UK contract demand. Every contracting discipline covered on this site has active demand in London, from niche specialisms like threat intelligence and LLM engineering through to high-volume disciplines like project management and business analysis. The sheer density of employers means contractors in London typically have more choice of engagement at any given time than anywhere else in the UK. Day rates carry a premium of 15 to 25 per cent over the national average across most disciplines, reflecting both the concentration of complex, high-value programmes and the cost of operating in the capital.
What does Inside IR35 mean?
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 inside IR35, income tax and National Insurance are deducted at source, typically via an umbrella company or agency PAYE. Headline day rates on inside IR35 engagements are generally higher than equivalent outside IR35 roles to account for the tax and employment cost structure.
Inside IR35 determinations are made where the working arrangements are considered to resemble employment, based on factors including the level of client control, the absence of a genuine right of substitution, and the presence of mutuality of obligation. Since April 2021, the end client is responsible for making this determination for medium and large private sector organisations. Many employers in financial services, government, and professional services assess the majority of their contractor engagements as inside IR35.
On QualityContracts.co.uk, approximately 49% of roles with a stated IR35 status are classified as inside IR35, making it the most common arrangement across the contract market. The proportion varies by sector and role type. Each listing on this page displays its IR35 status where provided by the hiring organisation.
How much do contractors usually earn in London when working Inside IR35?
Contract rates in London for inside IR35 engagements vary by discipline and seniority. Inside IR35 rates are typically 15% to 30% higher than equivalent outside IR35 roles to account for tax and national insurance deducted at source by the fee-payer. Filter by your specialism above for a more specific range.
How many Inside IR35 vacancies in London are there on Quality Contracts?
Over the past twelve months, we have tracked over 35,000 contract roles across the site, with roughly one in three sitting Inside IR35. Data reviewed up to September 2026.