We help professional service companies to improve all their finance and operations related processes to bring their company to the best level of organizational effectiveness.


We evaluate your business processes, discover ways to streamline your productivity and reduce costs. We help you increasing your EBIT.


Examples of services & solutions derived from our client mandates:


Business Advisory

  • Accounting & Fiduciary Services
  • Finance & Controlling
  • Organisational Effectiveness
  • Business Process Improvement
  • Restructuring & Cost Optimization
  • Outsourcing & Nearshoring
  • Valuation & Transaction
  • Mergers & Acquisition Integration
  • Internal Audit


Board of Director Positions

  • Governance, Risk & Compliance
  • Oversight & Control


Business Angel Activities

  • Market Research & Analytics
  • Company set-up
  • Seed, Start-up, Expansion


Management Services

  • Interim Management
  • Turnaround & Crisis Management
  • Change Management
  • Critical Project Management
  • Special Accounting (Forensic) Taskforce


Expat Tax Compliance Solutions


An incresing competitive global workforce plus the coordination of geographical diverse operations requires effective and compliant business processes and policies to retain the profitability of companies.


Changing tax regulations, greater tax transparency and an increased compliance awareness by local tax authorities and auditors put pressure on Tax, Human Ressources and Finance departments establishing prudential processes and policies in all companies with employees working on cross border engagements.


Controlling and accounting of Expat tax assets, liabilities and expenses is becoming essential.


Expat Tax Compliance v4.pdf
PDF-Dokument [39.2 KB]


Diener Advisory GmbH
Ruessenstrasse 12

6340 Baar





Contact Info

Phone: +41 (0)41 544 15 50

Fax:     +41 (0)41 544 15 51

Mail:    contact@diener-advisoy.com


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