Mactech: Trusted IR35 and umbrella support for nuclear construction contractors
UK Payroll • Case Study • Umbrella Regulations • Sep 23, 2025 9:39:24 AM • Written by: Holly Spiers
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Introduction
Mactech operates in the nuclear construction sector, where compliance and efficiency are critical. The agency needed a payroll partner that could alleviate the stress of IR35 and off-payroll working, while ensuring contractors are onboarded quickly, paid accurately, and queries are resolved promptly.
By working with Giant, Mactech benefits from dedicated account management, expert compliance advice, and a fully compliant umbrella and IR35 fee-payer service.
The challenge
Operating in the highly regulated nuclear construction industry, Mactech faced the dual challenge of navigating complex IR35 compliance and reducing the administrative burden of managing payroll and contractor queries.
The agency needed a partner who could:
- Take away compliance stress around IR35 and off-payroll working
- Provide fast and smooth onboarding for new contractors
- Manage payroll and contractor queries efficiently
- Deliver tailored advice and updates on changing legislation
The solution
Giant provides Mactech with a comprehensive umbrella and IR35 fee-payer service designed to meet the specific needs of the nuclear construction sector.
Key elements include:
Dedicated account management
A responsive account manager who provides day-to-day support and quick issue resolution.
Expert compliance knowledge
Tailored IR35 advice and guidance to ensure confidence in managing off-payroll working regulations.
Efficient onboarding
Fast and accurate processes that allow contractors to start work without delay.
Training and updates
Legislation training sessions for Mactech’s internal team to keep them informed and confident in compliance management.
The results
Through its partnership with Giant, Mactech:
- Eliminates compliance stress around IR35 and off-payroll working
- Reduces administrative workload by outsourcing payroll and contractor querie
- Onboards contractors quickly and accurately
- Strengthens confidence in compliance through tailored advice and training
- Benefits from a responsive and knowledgeable account manager
Why Giant
Giant’s ability to combine compliance expertise with efficiency and personalised support makes it a trusted partner for Mactech. Their umbrella and IR35 services provide peace of mind, reduce administrative burden, and deliver the confidence Mactech needs to focus on its core business in the nuclear construction sector.
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