Full-scope support for a Polish engineering and construction company: international staff mobility, A1 certificates, multi-jurisdiction payroll, taxation, group accounting and legal support for international contracts.
While delivering international projects the client needed to unify processes for a large number of employees while complying with the laws of several countries at the same time.
High staff mobility, cross-border taxation and various cooperation models with customers called for comprehensive support across accounting, tax, labor and corporate law.
Our scope: supporting international postings, issuing A1 certificates, payroll for employees delivering projects across the EU, determining employee and employer tax obligations in each jurisdiction, accounting and tax bookkeeping for the Polish entity, group accounting, legal support for the international operating model and cooperation with foreign clients.
Our team designed and implemented an end-to-end support model covering international mobility, payroll, HR administration, group accounting and legal support.
We handled hundreds of international postings: paperwork for business trips, A1 certificates, tax residency analysis and application of double-tax treaties.
We monitored stay limits across countries and supported social-security matters for cross-border work.
For employees working in several countries at once we ran payroll, allocated tax obligations between jurisdictions and determined where the tax liability arises.
We supported international tax matters and prepared the required reporting in each applicable jurisdiction.
Depending on project needs and customer models we supported different international employment schemes: Secondment, Global Mobility and Employer of Record (EOR).
For each model we analysed tax, corporate, labor and immigration implications, prepared the documentation and provided ongoing support.
We built transparent HR processes for dozens of concurrent projects: project-team support, handling of different employee categories, HR administration and changes to working conditions.
We ensured smooth cooperation between the client's accounting, HR and legal functions.
We supported projects delivered under Outsourcing, Outstaffing and staff-provision models.
For each model we analysed tax, legal and corporate risks given the specifics of EU industrial customers.
Full accounting service, tax bookkeeping, group support, financial reporting and international tax advisory.
Legal support: contract documentation, international agreements, corporate law, project legal review and mitigation of legal risks.
Thanks to end-to-end support the client gained a single competence centre and can focus on delivering large engineering and construction projects.
Combining accounting, tax advisory, international payroll, HR administration and legal support enabled the client to operate under international models (Secondment, Global Mobility, EOR) without operational barriers.
A single point of accountability reduced the internal administrative load and ensured process transparency when working across several EU jurisdictions.
The project shows how comprehensive support becomes a strategic resource for engineering and construction companies delivering major international projects.
We will build unified support for international mobility, payroll, taxes, accounting and legal matters.