C# Developer Salary UK 2025
Last updated: June 2025 • 7 min read • Written by: ClickMasters HR Team • Reviewed by: Reviewed annually
Direct Answer
C# Developer salaries range from £30,000 to £690–£960/day. .NET 8 + ASP.NET Core is the modern C# standard — .NET Framework 4.x knowledge alone is a yellow flag. Azure expertise alongside C# commands 15–20% premium. Unity C# experience is a distinct specialism valued in UK gaming (Guildford, Dundee, Edinburgh). MAUI (cross-platform .NET) is an emerging specialism for C# mobile development.
Market Outlook
C# Developers remain in consistent demand across UK enterprise software — particularly for Microsoft-stack organisations (Azure, .NET, SQL Server), financial services (banking and insurance back-office), and gaming (Unity engine uses C#). The .NET ecosystem has modernised significantly with .NET 8 and ASP.NET Core.
Salary benchmarks by Seniority
IR35 Tax Position
Day rates assume outside IR35. Inside IR35 contractor day rates in the UK are typically 15–25% higher to compensate for the lack of tax efficiency and additional payroll costs. ClickMasters engineers are directly employed by us, representing **zero IR35 risk** for clients.
Frequently Asked Questions
Everything you need to know about csharp developer salary standards.
Approximately £75,000–£112,000 mid-level. London +20–30%.
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