HR and Payroll Management
OmniTrust supports you with all your human resources processes, with rigour and responsiveness.
By outsourcing your HR processes to us, we handle contracts, salaries, staff administration and your social obligations, so you can focus fully on managing and developing your teams.
Payroll management is a critical function, governed by strict, constantly evolving legal obligations.

Solutions to optimise your HR and payroll management
As a trusted local partner, we deliver support that respects deadlines and continuity through a range of solutions:
- Calculation of salaries and social security contributions, and preparation of your monthly payslips
- Social security filings with the Joint Social Security Centre (CCSS)
- Tax filings (withholding tax)
- Administrative management of employment contracts
- Tracking of absences, leave and working time
- Hiring and termination declarations
Support tailored to your profile
Local entrepreneurs and freelancers
A partner for your HR management, combining closeness, peace of mind and compliance
As an entrepreneur or self-employed professional, your time is precious. Delegating human resources to a trusted partner lets you focus on what matters most: growing your business. OmniTrust provides close support that turns administrative complexity into smooth, flawless management.
We handle your entire HR cycle — from precisely calculating salaries and social security contributions to preparing monthly payslips. From hiring declarations to rigorous tracking of leave and absences, we manage your relations with the CCSS and the tax authorities (withholding tax) on your behalf. More than a simple payroll provider, we become your day-to-day HR support, offering continuity of service and clear dashboards so you always have full visibility over your payroll.
INTERNATIONAL PLAYERS
Operational excellence and payroll expertise in Luxembourg
For international structures consolidating their operations in the Grand Duchy, human capital management must meet high standards. We act as your local strategic partner, guaranteeing full compliance of your HR function with Luxembourg legislation, which can prove complex for global players.
Our expertise covers the entire payroll and HR management value chain: processing complex payrolls, managing employment contracts, and filing social security reports with the CCSS. We ensure compliance with your tax obligations related to withholding tax and provideOur expertise spans the entire payroll and HR management value chain: preparing complex payrolls, managing employment contracts, and handling social security filings with the CCSS. We secure your withholding-tax obligations and deliver accurate reporting through robust HR dashboards, essential for managing your international operations. Entrusting us with your HR management gives you an agile, expert solution with guaranteed continuity of service and a transparent interface with local authorities. accurate reporting through robust HR dashboards, which are essential for your international operations. By entrusting us with your HR management, you benefit from an agile and expert solution that guarantees absolute service continuity and a seamless interface with local authorities.

Linked services
Tax and VAT
We support you in meeting your legal obligations, keep watch on regulatory developments on your behalf, and manage your compliance with Luxembourg and international law.
Accounting
We support you in fully managing your accounts, in strict compliance with Luxembourg standards, so you always have a clear, reliable view of your financial position.
Legal secretarial services
We take care of organising your meetings and drafting the minutes, keeping your registers, and filing annual accounts with the Trade and Companies Register — simplifying the management of your company.
Find out more about managing your employees...
Why choose a local fiduciary over a 100% software-based solution?
Software processes data; a fiduciary processes context. Far from being limited to remote execution, our experts are genuine advisors you can turn to at the slightest doubt. In Luxembourg, close working relationships and in-depth knowledge of administrative contacts help resolve situations no algorithm could handle.
What are the rules regarding remote work for cross-border workers?
This is a complex topic. Depending on the bilateral agreement in question, there are thresholds for remote-working days (34 days for France, for example) beyond which taxation and social security may shift to the country of residence. Constant monitoring is required — visit our blog to find our latest articles on the subject.
What is automatic wage indexation in Luxembourg?
This is a unique mechanism under which salaries are adjusted by 2.5% as soon as inflation reaches a certain threshold. Business owners should factor this variable into annual budget forecasts to avoid cash-flow strain.
NEWS on the subject
A fiduciary firm rooted in Luxembourg for more than 30 years, OmniTrust uses its blog to bring together and make sense of regulatory, tax and administrative news from Luxembourg and its neighbours.
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