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Technical specifications for Gift Aid repayments RIM artefacts for Charities Online software developers.
Find schema and technical specifications for Construction Industry Scheme Online software developers.
Check the availability and any issues affecting the Machine Games Duty (MGD) online service.
List of companies who advised the New Computerised Transit System (NCTS) project team of their plans to develop commercial software solutions for NCTS.
The PAYE internet submissions, expenses and benefits schema and supporting documents for PAYE software developers.
Use this technical documentation for trust and estate returns if you’re a software developer working with the Self Assessment online service.
Find software developers that can provide software to let you submit presentation of goods notifications for the safety and security process when goods arrive in Northern Ireland.
Find out how to create a CSV file to submit your declaration, what file layout to use and how to resolve problems with file upload failures.
Check the availability and any issues affecting the Customs Freight Simplified Procedures (CFSP) online service.
Check the availability and any issues affecting employment related securities (ERS).
Check the availability and any issues affecting the Gambling Tax online service.
Use this tool if you are a software developer wanting to produce user-defined XML test scenarios.
Use this technical documentation for partnership returns if you’re a software developer working with the Self Assessment online service.
Agent authorisation Construction Industry Scheme technical specifications for software developers.
Check the availability and any issues affecting Alcohol and Tobacco Warehousing Declarations (ATWD).
Excise Movement and Control System (EMCS) technical specifications for software developers.
Find the schema and supporting documents for software developers, or agents, acting on behalf of merchant acquirers who send returns to HMRC.
Use the P11D Working Sheets (2023 to 2024) to help develop payroll software if you're a PAYE software developer.
Forms P60 (2017 to 2018) for PAYE software developers.
Draft forms are an aid for software developers in the development of payroll software.
Don’t include personal or financial information like your National Insurance number or credit card details.
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