David W. Machemer Partner
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  • F 312.267.2243
David W. Machemer
“Being in-house, I learned practical, big picture thinking. Working for the Government, I learned how to swim upstream.”

David is a partner at HMB and a member of the firm’s State and Local Tax (SALT) Group.  He concentrates his practice on litigating state and local tax controversies for Fortune 500 companies on matters across the country. David also counsels companies on tax planning matters with a heavy emphasis on equipment leasing issues.

Representing clients nationwide, David advises businesses on transactions that create optimal tax structures and mitigate risks that arise from multistate operations and disparate compliance requirements. This includes working in the arenas of equipment leasing, sales and use, income, motor fuel, and estate taxes.

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Unique Background, Unique Insight

David’s unique background combines in-house and government experience, which offers his clients deeper perspectives on the potential risks related to government administration. He worked as in-house counsel for a large multinational financial and leasing company and represented the Illinois Department of Revenue in state tax litigation matters as an Assistant Attorney General.

Whether it’s tax planning for operations in a new state or mitigating tax controversy, clients turn to David for his informed counsel and unique insight.


  • University of Illinois Chicago School of Law, J.D.
  • Michigan State University, B.A.


  • U.S.District Court, Central District of Illinois
  • U.S. District Court, Southern District of Illinois

Professional Memberships

  • Council on State Taxation
  • Chicago Bar Association
  • Equipment Leasing Finance Association, Tax Roundtable Committee Member

Community Involvement

  • Big Brothers Big Sisters, Volunteer
  • Warren Park Youth Baseball League, Board Member




  • State and Local Tax Illinois Practitioner SeriesSeptember 1, 2020

    In the Illinois Practitioner Series, HMB's SALT team discusses various topics covering Illinois Procedures, Corporate Income Tax, Retailers' Occupation Tax (Sales Tax) and Use Tax and Local Taxes. Download the full booklet here. Questions? Reach out to the state and local tax team here.  …

  • HMB Elevates David Machemer and Tim Rybicki to PartnerJanuary 8, 2020

    Chicago, IL December 12, 2019 HMB Legal Counsel, a preeminent provider of legal services in Business and Finance, State and Local Tax, Trusts and Estates, Bankruptcy, Reorganization and Creditors' Rights, Real Estate and Litigation announced that three associate attorneys were elevated to partner. David W. Machemer David is a member of the firm's State and Local Tax (SALT) Group.  He…


  • Cook County Taxes: Parking Lot and Garage Operations TaxDecember 11, 2018

    The "Parking Lot Tax" has recently been targeted by the Cook County Department of Revenue. In the past 3-5 years, we have seen a significant uptick in the Department's audit activity, and challenges to Taxpayer positions. Their efforts have primarily focused on the enforcement of its Amusement, Tobacco, and Gasoline and Diesel Taxes. However, more recently, the Department has turned its attention to its Parking Lot Tax.

  • Illinois' Unique Treatment of Leases and Traps for the Unwary LessorMay 22, 2018

    Illinois? treatment of leases is an anomaly when compared to almost all other jurisdictions. While most jurisdictions impose sales tax on the lease receipts collected from the lessee, the user of the equipment, Illinois differs by treating the lessor as the user of the equipment. As such, the lessor is subject to Illinois use tax.

  • Navigating a Cook County Department of Revenue Audit and the Procedure for a Formal ProtestApril 17, 2018

    A recent national trend in the practice field of state and local tax has been the uptick in local jurisdictions' audit activity. The Cook County Department of Revenue has taken aggressive positions in the interpretation of its tax ordinances which has led to increased litigation in the administrative proceedings before the Cook County Department of Administrative Hearings. This post provides an overview of the Department's audit and ensuing D.O.A.H. processes and will highlight some of the procedural differences compared to other jurisdictions such as Chicago and Illinois.

  • What Illinois Auto Dealers, Financial Institutions and other Lessors Need to Know About Taxing Post Lease ChargesMarch 12, 2018

    Three years ago, Illinoisans cheered the changes to the motor vehicle leasing law that were to lead to tax savings for lessees and level the playing field with other state's leasing laws. Now, as the first wave of three-year leases comes to an end, lessors can no longer afford to overlook these changes regarding the post-lease charges.

  • The Cubs Won the World Series and Illinois Finally Has a Budget!July 7, 2017

    Today marks the first time in over two years that Illinois will be operating under a budget. This is a result after the House voted to override Governor Rauner?s veto of Senate Bill 9. The House garnered the necessary votes to end the two year stalemate full of political puffery and sparring. Some of the relevant changes that Illinois? taxpayers should be aware of are noted below. All changes are effective July 1, 2017, unless otherwise noted.

  • University of Illinois Chicago School of Law, J.D.
  • Michigan State University, B.A.
  • U.S.District Court, Central District of Illinois
  • U.S. District Court, Southern District of Illinois
500 West Madison Suite 3700
Chicago IL 60661

Phone: 312-606-3200 Fax: 312-606-3232
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