Microsoft Dynamics 365 Business Central: CIS Automation for a UK Lift and Access Solutions Provider  

Customer Overview

The customer is a leading UK provider of lift and access solutions, delivering the supply, installation, and maintenance of platform lifts across commercial and residential environments. 

To support continued growth and meet Construction Industry Scheme (CIS) compliance requirements, the customer sought to replace manual, spreadsheet-driven processes with a robust, automated CIS solution embedded directly within Microsoft Dynamics 365 Business Central.

Business Challenges

As CIS volumes increased, the customer’s existing processes became inefficient and difficult to manage: 

• CIS processes were fully manual and heavily reliant on spreadsheets, limiting control and auditability 
• Manual CIS calculations on invoices and purchase orders increased the risk of errors 
• HMRC submissions and subcontractor statement preparation required significant time each month 
• A lack of automation and scalability placed additional strain on the finance team 

These challenges made it clear that a system-driven, compliant CIS solution was required. 

Solution: Mercurius IT CIS Automation Module

Mercurius IT implemented its CIS Automation Module for Microsoft Dynamics 365 Business Central, purpose-built to streamline and automate CIS management while ensuring HMRC compliance. 

The solution delivered included: 

• CIS functionality fully integrated within Business Central 
• Automated subcontractor verification with HMRC 
• Automatic CIS calculation on invoices and purchase orders 
• One-click CIS return submission to HMRC directly from Business Central 
• Automated CIS reporting and subcontractor statement generation 

By embedding CIS automation into Business Central, the customer eliminated manual workarounds while maintaining a single source of truth for financial data.

Benefits Delivered 

Following implementation, the organisation achieved significant operational and compliance improvements: 

• Elimination of spreadsheet-based CIS processing, improving control and consistency 
• Reduced errors and increased accuracy through automated calculations 
• Faster and more efficient HMRC submissions, easing month-end pressure 
• Improved compliance and visibility, with real-time CIS reporting 
• Greater finance team efficiency, enabling focus on higher-value activities 

The CIS process is now scalable, auditable, and aligned with the customer’s long-term growth strategy.

Why Choose Mercurius IT?

Mercurius IT is a trusted Microsoft Dynamics 365 partner with specialist expertise in Business Central and finance automation. 

The customer selected Mercurius IT for their: 

• Proven CIS expertise through the Mercurius IT CIS Automation Module 
• Deep understanding of HMRC compliance requirements 
• Consultative, outcome-focused implementation approach 
• Seamless integration with Microsoft Dynamics 365 Business Central 
• Ongoing support to ensure compliance, optimisation, and scalability 

Mercurius IT delivered a future-ready CIS solution that simplifies compliance, reduces risk, and supports business growth.