Rates

What is a software developer’s day rate in the UK?

Last updated 12 October 2026

Most pages answering this quote a range with no source and no date. Here are the published figures, each with the sample it came from and the period it covers — and one finding that matters more than any of the numbers: the seniority ladder everybody publishes is not in the data.

That is the only series in this data with a sample big enough to carry a claim. Everything below is narrower, and the narrower it gets the less it means.

By region, and the London premium is smaller than you think

London against the UK median is about five per cent. London against Scotland is about nineteen. The South West sits within £10 of London. Note that the period end dates differ by up to two months between those pages, so this is not a strictly simultaneous cross-section — it is five separate six-month windows read on the same day.

The seniority ladder is noise, and here is the evidence

Read that table honestly and it says nothing. Senior pays less than unqualified “Software Developer”. Junior pays the most of the four, on a sample of two quoted rates from two jobs. Lead moved thirty per cent in a year on 34 quotes. Any page that prints a clean junior-to-principal day-rate ladder drawn from advertised vacancies is presenting noise as structure.

There is better seniority evidence, and it is public: every supplier on the government’s G-Cloud framework must publish a pricing document. One supplier’s published ladder, dated January 2026, maximum day rates per consultant on a 7.5-hour day, excluding VAT:

Those are framework maximums for one supplier selling to government, not market rates, and they are roughly double the advertised contract medians above. Both numbers are real; they are measuring different transactions. A rate card is what a consultancy may charge a department. A contract median is what a developer is offered.

What an employee costs instead

For comparison, in the same advertised-vacancy data a permanent UK software developer had a median salary of £65,000 in the six months to 11 October 2026, from 1,240 quoted salaries. The government’s own Skilled Worker going rate for the occupation — SOC 2134, programmers and software development professionals — is £54,700 a year, or £28.05 an hour at 37.5 hours, on a page last updated 8 October 2026.

The Office for National Statistics is the authority here, but mind the timing: the most recent Annual Survey of Hours and Earnings is “Employee earnings in the UK: 2025”, released 23 October 2025 and covering April 2025, with all 2025 estimates marked provisional on an achieved sample of 174,000 employees. The 2026 edition is due 22 October 2026. So any article you read this month that quotes “the latest ONS figures” for developer pay is quoting data from April of last year.

IR35, briefly and accurately

HMRC’s position, last updated 26 February 2026, is that the off-payroll rules apply contract by contract, and that in most cases the client decides the worker’s employment status for tax. The exception is the one most small companies are in: where the client is small and outside the public sector, the worker’s own intermediary makes the determination.

A client is medium or large if it meets two or more of: turnover more than £10.2 million, balance sheet total more than £5.1 million, more than 50 employees. Fail two of three and you are small. Three things follow that are regularly got wrong: being small does not make an engagement “outside IR35”, it moves who decides; a small client must still confirm its size if the contractor or agency asks; and an agency in the chain has responsibilities whatever its size.

Sources: ITJobsWatch contract and permanent series for Developer, Software Developer, Senior/Lead/Junior Software Developer, London, Scotland, North West and South West, read 12 October 2026, each with the period and sample stated above · Crown Commercial Service G-Cloud 15 supplier pricing document, January 2026 · ONS, “Employee earnings in the UK: 2025”, released 23 October 2025 · gov.uk Skilled Worker going rates, updated 8 October 2026 · HMRC, “Understanding off-payroll working (IR35)”, updated 26 February 2026, and “Off-payroll working rules for clients”. The claim that inside-IR35 roles carry a 15–25% rate uplift could not be traced to any primary source and is not repeated here as fact.