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Tax Consultant

Location: Warsaw, Poland

Company: Marsh & McLennan Companies

Job ID R_054834-en

Marsh & McLennan (NYSE: MMC) is the world’s leading professional services firm in the areas of risk, strategy and people. The company’s nearly 65,000 colleagues advise clients in over 130 countries. With annual revenue over $14 billion, Marsh & McLennan helps clients navigate an increasingly dynamic and complex environment through four market-leading firms. Marsh advises individual and commercial clients of all sizes on insurance broking and innovative risk management solutions. Guy Carpenter develops advanced risk, reinsurance and capital strategies that help clients grow profitably and pursue emerging opportunities. Mercer delivers advice and technology-driven solutions that help organizations meet the health, wealth and career needs of a changing workforce. Oliver Wyman serves as a critical strategic, economic and brand advisor to private sector and governmental clients. For more information, visit, follow us on LinkedIn and Twitter @mmc_global or subscribe to BRINK.


(Warsaw office)


The Tax Consultant will apply corporate tax and accounting concepts to prepare U. S. direct and indirect tax returns for MMC entities operating around the world.  The consultant’s work will cover a variety of US tax types, using a range of tax systems, with supporting work papers prepared in Excel.  Working across diverse tax processes within Marsh & McLennan’s Shared Service Center will provide cross-training opportunities for a motivated professional interested in pursuing a career in taxation of multinational enterprises.  

Duties may include working with financial data in tax systems to determine tax liabilities in collaboration with US Tax headquarters, using tax workflow and document management systems, monitoring global tax legislation, maintaining tax systems, coordinating tax reporting with MMC global controllers, and developing and updating tax processes and procedures documentation for the SSC.  The Tax Consultant must be able to work with minimal supervision by consistent application of MMC practice and procedures.


  • Prepare state and local indirect and direct tax returns, estimated tax calculations, and related payment requisitions

  • Assist U. S. tax headquarters in responding to inquiries from U.S. authorities

  • Prepare U.S. information tax returns for non-US entities (U.S. Forms 5471, 8858, 8865)

  • Monitor and report on current and proposed, US and foreign, tax law changes

  • Review and further analyze information prepared by Finance or MMC US Corporate Tax Headquarters

  • Use online tax research tools as needed in preparing tax returns

  • Follow up with regional and local non US controllers to ensure timely filing of quarterly and annual deliverables to MMC Tax international tax group

  • Maintain legal entity master data, prepare tax residence certificates to secure tax treaty benefits for the Company

  • Assist U.S. tax headquarters in developing and updating SSC processes and documentation

  • Maintain tax systems configuration and metadata including but not limited to entity hierarchies, chart of accounts, mapping tables and reports

  • Assist with managing content and maintenance of Tax Department Portal and workflow tools (SharePoint and OneSource Workflow Manager)

  • Respond to ad-hoc requests from tax colleagues for tools, data analytics, and reports


Education: At least a Bachelor degree in Finance, Accounting, or Tax

Experience: 1-3 years in finance or accounting, preferably working in a BPO or shared service center; prior corporate tax compliance is a strong plus

  • Fluent in English with strong speaking and writing skills

  • Strong skills in Microsoft Office especially Excel

  • Eagerness to collaborate in a professional tax team, and to develop proficiency in multiple areas of taxation

  • Critical thinking and problem solving; initiative and persistence to pursue problems to resolution

  • Strong analytical skills and attention to details


  • Competitive salary based on employment contract

  • Work in a people-oriented team with dynamic colleagues and leaders who are committed to exceeding the high standards set by our clients and by ourselves

  • Development within a growing company

  • Work-life balance 

  • CSR / volunteers  activities

  • Attractive benefits package (including private health care, sports card, life insurance, lunch card, language courses)

  • A-class office building facilities near to Rondo Daszyńskiego metro station

If you would like to apply for this position, please send your CV in English.

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    Dan Glaser, President and CEO, has been named to Institutional Investor magazine’s 2017 All-America Executive Team ranked as the #3 Overall CEO in the insurance industry, #3 with buy-side analysts and #2 with sell-side analysts.

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