Gift, Estate, & Income Tax Compliance

March 1, 2020

Mercer Capital’s Value Matters® 2020-03

Corporate Valuation and Estate Planning

A “Grievous” Valuation Error

Tax Court Protects Boundaries of Fair Market Value in Grieve Decision

All fair market determinations involve assumptions regarding how buyers and sellers would behave in a transaction involving the subject asset.  In a recent Tax Court case, the IRS appraiser applied a novel valuation rationale predicated on transactions that would occur involving assets other than the subject interests being valued.  In its ruling, the Court concluded that this approach transgressed the boundaries of what may be assumed in a valuation.

Background

At issue in Grieve was the fair market value of non-voting Class B interests in two family LLCs.  

  • The first, Rabbit, owned a portfolio of marketable securities having a net asset value of approximately $9 million.  
  • The second, Angus, owned a portfolio of cash, private equity investments, and promissory notes having a net asset value of approximately $32 million.

Both Rabbit and Angus were capitalized with Class A voting and Class B non-voting interests.  The Class A voting interests comprised 0.2% of the total economic interest in each entity.  The Class A voting interests were owned by the taxpayer’s daughter, who exercised control over the investments and operations of the entities.

Valuation Conclusion – Taxpayer

The taxpayer measured the fair market value of the Class B non-voting interests using commonly accepted methods for family LLCs.  

  • The net asset value of each LLC was deemed to represent the value on a controlling interest basis.  
  • Since the subject Class B non-voting interests did not possess control over either entity, the net asset value was reduced by a minority interest discount.  The taxpayer estimated the magnitude of the minority interest discount with reference to studies of minority shares in closed end funds.
  • Unlike the minority shares in closed end funds, there was no active market for the Class B non-voting interests in Rabbit and Angus.  As a result, the taxpayer applied a marketability discount to the marketable minority indication of value.  The taxpayer estimated the marketability discount with reference to restricted stock studies.

The combined valuation discount applied to the Class B nonvoting interests was on the order of 35% for both Rabbit and Angus, as shown in Exhibit 1 on the following page.

Valuation Conclusion – IRS

The IRS adopted a novel approach for determining the fair market value of the Class B non-voting interests.

Noting the disparity in economic interests between the Class A voting (0.2%) and Class B non-voting interests (99.8%), the IRS concluded that a hypothetical willing seller of the Class B non-voting interest would sell the subject interest only after having first acquired the Class A voting interest.  Having done so, the owner of the class B non-voting interest could then sell both the Class A voting and Class B nonvoting interests in a single transaction, presumably for net asset value.

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October 2026 | When a Large Ownership Block Doesn’t Mean Control
Value Matters® October 2026

When a Large Ownership Block Doesn’t Mean Control | Valuation Lessons from Grieve v. Commissioner

A large ownership interest does not necessarily convey control, a distinction with important implications for gift and estate tax valuations. In Grieve v. Commissioner, T.C. Memo. 2020-28, the U.S. Tax Court accepted discounts for lack of control and lack of marketability on ownership interests representing 99.8% of the economic interests in two family-owned LLCs.
Thomas C. Insalaco to Speak at Tampa Bay Estate Planning Council
Thomas C. Insalaco to Speak at Tampa Bay Estate Planning Council
Thomas C. Insalaco, CFA, ASA, Senior Vice President at Mercer Capital, will speak at the Tampa Bay Estate Planning Council on Wednesday, October 21, 2026, at the Chester H. Ferguson Law Center in Tampa, Florida.His presentation, “Navigating Business Valuations: What Estate Planners Need to Know,” will examine common estate planning valuation issues that have recently received IRS scrutiny and offer practical guidance for avoiding potential problems.The Tampa Bay Estate Planning Council brings together attorneys, fiduciaries, accountants, investment advisors, charitable giving specialists, family office executives, insurance professionals, and valuation experts. The Council promotes collaboration among the disciplines involved in estate planning and provides educational opportunities for its members. As a Council Partner, Mercer Capital is proud to support the organization’s educational programming and commitment to collaborative planning.Tom Insalaco is a Senior Vice President and a member of Mercer Capital’s Gift, Estate, and Income Tax Planning and Compliance practice group. Since 2008, he has provided valuation services across a broad range of industries and matters, including gift and estate tax, business succession and exit planning, and buy-sell agreements.Mercer Capital regularly works with attorneys, fiduciaries, business owners, and other professional advisors on valuation matters involving gift and estate tax planning, business succession, ownership transitions, and buy-sell agreements.For additional information or to register, visit the Tampa Bay Estate Planning Council’s website.
Mercer Capital to Sponsor ACTEC’s 2026 Fall Meeting
Mercer Capital to Sponsor ACTEC’s 2026 Fall Meeting
Mercer Capital is pleased to sponsor the American College of Trust and Estate Counsel’s 2026 Fall Meeting, taking place October 15 through 18, 2026, at the Hyatt Regency Denver in Denver, Colorado. Bryce Erickson, ASA, MRICS, J. David Smith, CFA, ASA, and Sujan Rajbhandary, CFA, ABV, will attend on behalf of the firm.ACTEC’s national meetings bring together leading trust and estate lawyers, law professors, and other professionals for education, committee sessions, and peer discussion. This year’s professional program will address the prudent investment of unique and unusual assets; estate and business planning for farms, ranches, and oil and gas interests; publicity rights; digital assets; art collections; and assets held in regulated businesses.Bryce Erickson, ASA, MRICS, is a Managing Director and member of Mercer Capital’s board of directors. Since 1998, he has led approximately one thousand valuation engagements and has deep experience in gift, estate, and federal tax matters, litigation support, transactions, and business planning across a broad range of industries. Bryce leads Mercer Capital’s energy industry practice and is a regular contributor to Mercer Capital’s Energy Valuations Insights blog.J. David Smith, CFA, ASA, is a Senior Vice President at Mercer Capital and a senior member of the firm’s tax practice. He provides valuation services for tax planning, transactional purposes, and financial reporting, with particular experience in industries including financial services, oil and gas, and biotechnology. David is also a regular contributor to Mercer Capital’s Value Matters Newsletter.Sujan Rajbhandary, CFA, ABV, is a Senior Vice President and a member of Mercer Capital’s Gift, Estate & Income Tax Valuation Group. During his 20-year career at Mercer Capital, he has provided valuation and financial advisory services for tax planning and compliance, transactions, ownership transitions, and other corporate and shareholder matters. He is a regular contributor to Mercer Capital’s Value Matters Newsletter.Mercer Capital regularly works with attorneys, fiduciaries, business owners, and professional advisors on valuation matters involving gift and estate tax planning, trusts, ownership transitions, transactions, and disputes. The firm is proud to support ACTEC’s commitment to professional education and excellence in trust and estate law.Mercer Capital looks forward to reconnecting with friends and meeting new colleagues in Denver. For more information about the 2026 Fall Meeting, visit ACTEC’s event website.

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