UK Self Assessment Guide
· WOWERI
Technical specifications for individual tax returns in the UK. Guidance for software developers.
Introduction
This article provides an overview of the technical specifications for individual tax returns in the UK. This guide is intended for software developers working with the Self Assessment online service.
Technical Specifications
The technical specifications for individual tax returns are available on the gov.uk website.
Application
These specifications apply to individual tax returns filed in 2026.
Conclusion
The technical specifications for individual tax returns in the UK are an essential document for software developers. Familiarity with these specifications will enable the creation of software that meets the requirements of the Self Assessment online service.
What to do next
Source: gov.uk