Inside IR35 Contract Jobs in London
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691 Contract jobs sorted by:
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Date Posted
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Updating results…
691 Contract jobs
Infrastructure Engineer
Posted Today by Salt
Key ResponsibilitiesArchitect, build, and deploy high-availability BMS, CMS, and CCTV environments.Drive an automation-f...
- Rate £550 per day
- Category Inside
- Work type Onsite
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Test Planning Lead
Posted Today by Experis
Role purpose / summaryOwn and drive the end-to-end test planning for a mainframe product migration programme, ensuring a...
- Rate Not specified
- Category Inside
- Work type Remote
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Senior Operations Manager (Property - Voids)
Posted Today by Salt
Role OverviewA large London local authority is seeking an experienced Senior Operations Manager (Property - Voids) to le...
- Rate £500 per day
- Category Inside
- Work type Onsite
- Location London; City of London; East London; Central London; South East London; West London; Canary Wharf; South West London; North London; Greenwich; Stratford
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Lead Azure Data Engineer
Posted Today by Experis
The OpportunityWe're looking for an experienced Lead Azure Data Engineer to play a key role in delivering a large-scale...
- Rate £675 per day
- Category Inside
- Work type Remote
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Program Manager
Posted Today by Experis
KEY RESPONSIBILITIESProgramme governanceEstablish and manage programme governance frameworksDefine reporting standards,...
- Rate £600 per day
- Category Inside
- Work type Hybrid
- Location London; City of London; East London; Central London; South East London; West London; Canary Wharf; South West London; North London; Greenwich; Stratford
Senior Full Stack Developer (Kotlin, React) - Banking - London
Posted Today by Salt
Senior Full Stack Developer (Kotlin, React) - Banking - LondonDaily rate: £500 - £700 (inside IR35)Duration: 6 - 12 mont...
- Rate £700 per day
- Category Inside
- Work type Hybrid
- Location London; City of London; East London; Central London; South East London; West London; Canary Wharf; South West London; North London; Greenwich; Stratford
SC Cleared User Researcher
Posted Today by Sanderson Government and Defence
We are seeking an experienced SC Cleared User Researcher to support the delivery of a major government digital transform...
- Rate £570 per day
- Category Inside
- Work type Hybrid
- Location London; City of London; East London; Central London; South East London; West London; Canary Wharf; South West London; North London; Greenwich; Stratford
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ITSM Consultant
Posted Today by Valcon Group
We’re looking for an experienced ITSM Consultant to provide hands-on delivery across a range of Service Management impro...
- Rate £600 per day
- Category Inside
- Work type Hybrid
- Location London; City of London; East London; Central London; South East London; West London; Canary Wharf; South West London; North London; Greenwich; Stratford
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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 August 2026.