Expert Guidance for Complex Reporting

Navigating complex accounting and regulatory challenges with confidence

In today’s fast-evolving financial landscape, organizations face increasing complexity in accounting standards, regulatory requirements, and reporting obligations. Grant Thornton’s Financial Reporting Advisory team combines deep technical knowledge, regulatory insight, and hands-on implementation support to help finance functions and management teams interpret and apply complex frameworks.

Our approach ensures high-quality, reliable, and audit-ready financial information that strengthens governance, transparency, and decision-making.

What it feels like to work with us

Our Services

Our Extended Finance Services deliver targeted, hands-on financial management and specialist support to organizations facing increased reporting demands, temporary capacity constraints, or complex operational requirements. We provide experienced professionals who seamlessly integrate into your finance function, ensuring continuity, reliability, and high-quality financial output.

Our services include:

  • Interim CFO and senior finance executive support for critical leadership and oversight
  • Short- to medium-term reinforcement of finance teams to address capacity gaps and peak reporting needs
  • Support during transactions, restructurings, and other complex finance-intensive projects
  • Enhancement of financial reporting processes, internal controls, and management information
  • Hands-on assistance with budgeting, forecasting, cash flow monitoring, and statutory reporting

Our IFRS Advisory Services provide practical, insight-driven support on the interpretation and application of International Financial Reporting Standards (IFRS). We guide organizations through the implementation of new and amended standards and advise on judgement-intensive accounting topics, ensuring consistent, well-documented, and high-quality financial reporting.

Our services include:

  • Assessment and implementation of new and amended IFRSs
  • Technical advisory on complex accounting areas, including revenue recognition, financial instruments, and business combinations
  • Accounting support for transactions and restructurings, with a focus on IFRS implications
  • Preparation of technical accounting analyses, position papers, and documentation
  • Targeted IFRS training for finance and accounting teams
  • Guidance to manage accounting complexity and regulatory-driven reporting changes
  • Support to ensure financial reporting aligns with regulatory and audit expectations

Selecting the appropriate accounting framework is a critical strategic decision for any organization. Our Accounting Framework Transition services support organizations through the adoption and implementation of IFRS and Greek GAAP, helping management and finance teams manage change, assess impacts, and ensure transparent, compliant, and efficient financial reporting.

Our services include:

  • Diagnostic assessment of the current accounting framework and readiness for transition
  • Identification and evaluation of key differences between Local GAAP, IFRS, and Greek GAAP
  • Assessment of the financial and operational impact of the accounting framework transition
  • Specialized technical guidance throughout the IFRS or Greek GAAP transition process
  • Support in the preparation of financial statements in full compliance with the applicable framework
  • Guidance on disclosures and notes to the financial statements in line with regulatory requirements
  • Training of management and finance teams to ensure smooth and consistent implementation
     

In an increasingly complex reporting environment, organizations require clarity, consistency, and confidence in their financial information. Our Financial Statements Preparation services support clients in meeting their reporting obligations while enhancing transparency, governance, and stakeholder trust through high-quality, compliant financial reporting.

Our services include:

  • Preparation of standalone financial statements in accordance with applicable accounting frameworks
  • Preparation of consolidated financial statements for group structures
  • Support throughout month-end and year-end closing processes
  • Documentation of accounting policies, key judgments, and significant estimates
  • Coordination and support during interactions with external auditors and regulators
  • Ensuring full compliance with IFRS, local GAAP, and regulatory reporting requirements

Our Hedge Accounting services provide specialized technical advisory support to organizations applying hedge accounting under IFRS 9. We help finance functions manage complex documentation, valuation, and effectiveness requirements, ensuring compliant, consistent, and audit-ready hedge accounting outcomes.

Our services include:

  • Assessment of derivative contracts and eligibility for hedge accounting
  • Design and documentation of hedge accounting relationships in accordance with IFRS 9
  • Preparation of hedge designation documentation and supporting technical analysis
  • Prospective and retrospective hedge effectiveness testing
  • Valuation modelling of hedging instruments and hedged items

Our Management Reporting services support organizations in designing, structuring, and preparing management information that is consistent with accounting records and aligned with financial reporting requirements. Working closely with finance functions, we deliver reliable, well-documented reporting outputs that support internal monitoring, control, and informed decision-making, without departing from statutory accounting principles.

Our services include:

  • Design and setup of management reporting structures and reporting packs
  • Alignment of management reporting with statutory financial statements and accounting records
  • Preparation of periodic management reports, including monthly and quarterly reporting
  • Support with budgeting, forecasting, and variance analysis based on accounting data
  • Definition and documentation of reporting methodologies, assumptions, and controls
  • Advisory support on the use of BI, analytics, or consolidation tools within the reporting process
  • Technology-enabled management reporting solutions to enhance efficiency and visibility

We provide specialized consulting and technical support for the preparation and submission of annual financial reports in accordance with the requirements of the European Single Electronic Format (ESEF). We support listed companies at all stages of the process, combining technical accounting expertise with a certified XBRL platform to ensure accuracy, regulatory compliance, and timely filing.

Our services include:

  • Consulting support on ESEF regulatory and technical requirements
  • Project governance and coordination of the implementation process
  • Conversion of financial statements to XHTML and iXHTML format
  • XBRL tagging of financial statements and notes, with the ability to create extensions
  • Preparation, validation and submission of files via the certified platform

Key features of the platform:

  • Production of iXBRL and iXHTML files compliant with ESEF requirements
  • Automated validation checks based on the regulatory framework
  • Rapid creation of new tags and smooth integration of classification changes
  • Support for tagging through artificial intelligence tools (AI-assisted tagging)
  • Cloud-based environment with simultaneous editing and collaboration capabilities

Our Financial Reporting team provides specialized advisory services to public sector entities for implementing the accounting framework introduced by Presidential Decree 54/2018, aligned with International Public Sector Accounting Standards (IPSAS). We guide organizations through the transition process, ensuring accurate application, consistent financial information, and compliance with statutory and reporting requirements.

Our services include:

  • Readiness assessments and gap analysis against P.D. 54/2018 requirements
  • Support in conversion to the new Chart of Accounts and accounting structure
  • Advisory on accounting policies, recognition, and measurement principles
  • Preparation and review of financial statements and budgetary reports under P.D. 54/2018
  • Assistance during first-time implementation and parallel reporting periods
  • Targeted training and technical support for finance and accounting personnel
  • Guidance to ensure reliable, transparent, and audit-ready financial reporting
Image

Why choose Grant Thornton

When technical expertise meets practical delivery, Grant Thornton helps organizations navigate complex financial reporting challenges with confidence. Our Financial Reporting Advisory team combines deep local knowledge with the capabilities of a global network to provide technically robust, well-documented, and audit-ready solutions, while working closely with finance teams to ensure practical, implementable results.

  • Practical experience across IFRS, Greek GAAP, US GAAP, IPSAS, and regulatory reporting
  • Centralized methodologies and tools for reliable, well-documented reporting
  • Advisory services tailored to your organization’s specific needs
  • Access to global knowledge and best practices with close local collaboration
     
Discover Financial Reporting Advisory
BROCHURE

Discover Financial Reporting Advisory

High-quality financial reporting requires technical accuracy, regulatory compliance and practical implementation experience.

Download the detailed brochure