At Omicron we help organizations in managing their tax obligations in a structured and practical manner.
Tax obligations affect most aspects of an organization’s operations and financial performance. As tax legislation evolves and reporting requirements become more demanding, businesses must manage compliance while maintaining an efficient tax position.
We work closely with clients to understand their activities and operational structure, enabling us to provide advice aligned with their business reality.
Our services support compliance, risk identification and the development of tax-efficient structures in line with applicable regulations.
How Omicron can support your organization:
- Managing tax obligations and reporting requirements
- Assessing the tax implications of transactions and business decisions
- Identifying and mitigating potential tax risks
- Structuring operations in a tax-efficient and compliant manner


Tax advisory
Tax legislation can influence decisions across both operational and strategic areas. Understanding how tax rules apply to transactions and business structures is essential for managing risk and avoiding unintended consequences.
Omicron provides tax advisory services that help businesses assess the tax implications of their decisions before they are implemented. We support clients in interpreting tax legislation, evaluating transactions and structuring operations in a way that aligns tax considerations with business objectives.
Our approach focuses on practical advice that helps organizations anticipate tax consequences, avoid unnecessary risks and operate within a well-structured tax framework.
- Providing advisory support on domestic and international business taxation matters
- Structuring the presence of foreign investors in Greece, having regard to funding, assets, operations deployed and exit aspects
- Assisting clients in determining their tax positions and reviewing and validating tax returns
- Assisting clients with tax audits and tax refund procedures
- Carrying out tax, accounting and financial due diligence
- Carrying out tax diagnostic reviews preventive tax risk measuring as well as control frameworks
- Undertaking tax compliance supervision
- Accounting bookkeeping, including under special business operations regimes
- Assisting with preparation of financial statements and reporting (local GAAP and IFRS)
- Undertaking the set up and tax registration for local entities and operations
- Assisting clients in developing, improving and monitoring tax compliance and accounting policies and processes
- Supporting clients with managing transition to new accounting systems, e-books and e-invoicing
Tax compliance
Managing tax compliance requires accuracy, consistency and continuous monitoring of regulatory developments. Failure to meet reporting obligations or interpret tax requirements correctly can lead to financial penalties and operational disruptions.
Omicron assists businesses in managing their tax compliance processes efficiently and reliably. Our services include the preparation and submission of tax returns, monitoring of regulatory developments and ongoing support in meeting reporting obligations.
By organizing and overseeing tax compliance processes, we help organizations reduce administrative burden, avoid compliance risks and maintain a structured relationship with tax authorities.
- Tax Returns: Preparation and submission of corporate income tax, VAT, and other necessary returns
- Payroll Tax: Managing payroll calculations, social security requirements, and employee tax reporting
- Indirect Taxes: Handling VAT, Intrastat returns, and quarterly intra-community returns
- Digital Compliance: Implementation of automated digital bookkeeping systems, such as "myDATA" in Greece, to meet electronic reporting requirements
- Transfer pricing planning and compliance advice: Advice services and support in the preparation of transfer pricing documentation in accordance with Greek or foreign legislation, support in transfer pricing audits


Tax due diligence
Tax due diligence is an essential step in mergers, acquisitions and investment decisions. Reviewing the tax position of a target company allows investors and acquirers to identify potential risks and understand the tax implications of a transaction.
Omicron conducts detailed tax due diligence reviews that evaluate historical tax compliance, identify potential exposures and assess the tax structure of the target entity. Our analysis provides buyers and investors with a clear view of potential tax liabilities and areas requiring further attention.
By identifying tax risks early in the transaction process, we help clients protect their investment and support a more informed evaluation of the deal.
Tax planning
Tax planning allows organizations to structure their activities in a way that supports efficiency while remaining fully compliant with applicable legislation.
Omicron works with businesses to design tax planning approaches aligned with their operational structure, transactions and long-term objectives. By analyzing the interaction between business activities and tax regulations, we identify opportunities to improve tax efficiency and reduce unnecessary tax exposure.
Our focus is on developing practical and sustainable tax strategies that support the organization’s broader financial and operational goals.

Navigating Tax Complexity with Confidence
We support organisations in managing their tax obligations while providing tailored advisory services that address complex regulatory requirements and align with their broader business objectives.