📖 Approx. 9 min ／ Updated 2026.05.08
Inheritance tax measures for medical corporations with equity require a systematic approach by experts due to their complexity. In medical corporations that have been managed for a long time, internal reserves often accumulate, leading to cases where the valuation of equity interests becomes extremely high. This creates a risk of substantial inheritance tax being imposed upon the death of the owner. This article comprehensively explains, from the perspective of medical M&A specialists, everything from methods for valuing the equity interests of medical corporations to key succession schemes such as utilizing the certified medical corporation system, lifetime gifts, and third-party succession M&A, as well as specific considerations unique to the medical industry.
Inheritance Tax Risks and the Importance of Valuation for Medical Corporations with Equity
The equity interests in a medical corporation with equity become taxable assets for inheritance tax purposes upon the death of the shareholder. These “equity interests” refer to the shareholder’s rights to the net assets of the medical corporation, and their value fluctuates significantly depending on the corporation’s asset status. In particular, for medical corporations that have been in operation for many years and have continued to operate steadily, it is common for the market value to significantly exceed the book value due to unrealized gains on fixed assets such as land and buildings, accumulated financial assets, and outstanding medical fees.
In calculating inheritance tax, appropriately valuing these equity interests is the first and most crucial step. The higher the valuation, the greater the inheritance tax burden, and the higher the likelihood of straining the finances of the successor or heirs. While “corporations” are the mainstream form of medical corporations, there is a distinction between those with and without equity interests, and for medical corporations with equity interests, inheritance tax measures are an urgent issue. It is important to understand the fundamental difference that medical corporations without equity interests do not have equity interests, and therefore are not subject to inheritance tax.
Against this backdrop, establishing a planned succession scheme that looks to the future of the medical corporation before the occurrence of inheritance, grasping the appropriate valuation of equity interests, and taking measures to reduce the inheritance tax burden can be said to lead to the maintenance of a stable medical service system.
Valuation Methods for Medical Corporation Equity Interests and Practical Considerations
The valuation of equity interests in medical corporations shares many similarities with the valuation of unlisted shares in general corporations, but it is necessary to consider the constraints arising from the specific nature of the Medical Care Act and the characteristics of the business. The following valuation methods are primarily used.
1. Net Asset Value Method
This method calculates the net asset value by subtracting liabilities from the total assets of the medical corporation, and then values the equity interests based on the re-evaluated market value of these net assets. This is the most commonly used method for valuing medical corporations and plays a central role in practice.
- Market Valuation of Assets: Real estate such as land and buildings are valued at market prices based on fixed asset tax valuations and road price indicators. Medical equipment also requires market valuation, considering its current market value or its actual value after depreciation, rather than its book value at the time of purchase. Outstanding medical fees and inventory are also valued at market prices, taking into account their collectibility and degree of deterioration.
- Deduction of Corporate Tax Equivalent: When assets with unrealized gains are valued at market prices, it may be possible to deduct an amount equivalent to the corporate tax (generally around 37%, but varies depending on the corporation’s situation) that would be incurred if these unrealized gains were realized in the future. This is based on the idea that unrealized gains on assets do not directly translate into the value of equity interests.
2. Similar Industry Comparison Method
This method involves valuing based on listed companies. However, for medical corporations, there are very few similar listed companies, making it difficult to apply this method alone in most cases. For small to medium-sized medical corporations, this method is often used supplementarily or not at all.
3. Dividend Yield Method
This method is mainly used for valuing minority interests and involves valuing based on the annual dividend amount capitalized at a certain interest rate (generally around 10%). Since dividend payments of surplus are often restricted for medical corporations, the application of this method is limited. However, it may be considered in special cases where equity interests are frequently transferred.
These valuation methods are performed based on the most recent financial statements and asset status at the time when valuation is required, such as at the time of inheritance or lifetime gift execution. The valuation must be carefully calculated by experts such as tax accountants and certified public accountants, who select the appropriate method based on the circumstances of each medical corporation.
Key Inheritance Tax Measure Schemes for Medical Corporation Business Succession
There are multiple options for inheritance tax measures for medical corporations, and it is important to understand the merits and demerits of each and select the optimal scheme according to the corporation’s situation and the successor’s intentions.
1. Transition to a Medical Corporation Without Equity Interests Utilizing the Certified Medical Corporation System
One of the most fundamental measures is the transition from a medical corporation with equity interests to one without. Since medical corporations without equity interests do not have equity interests, the assets subject to inheritance tax itself disappear. The “Certified Medical Corporation System” can avoid the gift tax that may arise during this transition. This system, by obtaining certification from the Minister of Health, Labour and Welfare, makes the deemed gift tax due to the waiver of equity interests tax-exempt, making it a powerful scheme that significantly reduces the tax burden associated with succession while ensuring the perpetuity of the medical corporation. However, certification requires meeting strict requirements regarding public interest and operational transparency, and long-term preparation and expert support are essential, from the formulation of the transition plan to the application for certification, the execution of the transition, and the subsequent five years of operational reporting.
2. Planned Transfer of Equity Interests Through Lifetime Gifts
This is a method to reduce the inheritance assets and alleviate the future inheritance tax burden by gifting equity interests to relatives or successors during one’s lifetime. By utilizing “calendar year gifting” of up to 1.1 million yen per year, equity interests can be gradually transferred tax-free. There is also the option of using the “gift tax consolidation system for inheritance,” but this system imposes gift tax on amounts exceeding the tax-free allowance (25 million yen) at the time of gifting, and these amounts are added to the inheritance assets at the time of inheritance, requiring careful consideration. If the valuation of equity interests is high, a large amount of gift tax may arise even with lifetime gifts, necessitating planning based on a thorough understanding of the valuation.
3. Liquidation Through Third-Party Succession M&A
When there is no successor or when one wishes to avoid the tax burden associated with succession, M&A, where the medical corporation is transferred to a third party, is also a viable option. By selling the equity interests, the founder’s profit is converted into cash, which then becomes part of the inheritance assets. In this case, “capital gains tax” is levied on the capital gains from the transfer of equity interests. Currently, capital gains tax is subject to separate taxation at a rate of 20.315% (15.315% income tax + 5% resident tax), which is often lower than inheritance tax or high gift tax, potentially resulting in a larger amount remaining in hand. M&A can not only serve as an inheritance tax measure but also cater to diverse needs, such as using the sale proceeds for living expenses in old age or investing in new businesses.
4. Transition to a Limited Equity Amount Corporation
By transitioning an existing medical corporation with equity interests to a “limited equity amount corporation,” the right to claim repayment of equity interests is limited to the amount of equity contributed, thereby compressing the valuation of the excess portion. This is expected to suppress an excessive increase in future inheritance tax valuations. While this does not fundamentally eliminate equity interests, it has the advantage of being executable through relatively simple procedures, unlike the transition to a certified medical corporation.
Tax and Legal Issues in Medical Corporation M&A and Succession Unique to the Medical Industry
M&A and business succession of medical corporations involve numerous special tax and legal issues that differ from those of general corporations. Accurately understanding and appropriately addressing these issues is key to achieving smooth succession.
- Types of Medical Corporations and Nature of Equity Interests: There are various types of medical corporations, such as medical corporations (shadan/zaidan), specific medical corporations, and social medical corporations, each with different regulations regarding the existence and nature of equity interests and the replacement of members (shareholders). Particularly in medical corporations with equity interests, the status of members is related not only to shareholder rights but also to voting rights concerning the corporation’s management, thus requiring careful procedures for their transfer.
- Handling of Funds: When considering a transition to a medical corporation without equity interests, the handling of “funds” in a fund-contribution-based medical corporation becomes important. Unlike equity, funds have a repayment obligation but do not allow for dividend payments of surplus. The repayment scheme for funds after the transition and its impact on future financial planning need to be considered in advance.
- Medical Fee Revisions and Facility Standards: Medical fees, which are the core of a medical corporation’s revenue, are revised every two years. When formulating management plans after M&A or succession, it is necessary to consider the impact of future medical fee revisions and the possibility of maintaining or changing facility standards. In particular, when considering business expansion or changes in specialized fields after succession, the costs and efforts required to obtain new facility standards or maintain existing ones should be evaluated.
- Succession of Licenses and Permits: Establishing a medical institution requires permission from the prefectural governor based on the Medical Care Act. Depending on the form of M&A or succession, a new application for establishment permission may be required, or the procedures for inheriting existing permits may differ. Close consultation with the public health center and the relevant prefectural departments in advance is essential.
- Specifics of Business Tax: Medical corporations are subject to business tax depending on their business form and revenue scale, but certain medical corporations, such as social medical corporations, may be eligible for preferential tax treatment. Since the business tax burden may vary depending on the corporate form after M&A or succession, it is advisable to estimate the tax impact in advance.
- Relationship with Regional Medical Care Planning: The regional medical care planning promoted by the government encourages the differentiation and collaboration of hospital bed functions and the reorganization of medical service provision systems. M&A and succession of medical institutions may be evaluated within the framework of this regional medical care planning, potentially influencing the future form of medical institutions. It is required to grasp regional medical needs and policy trends and reflect them in the post-succession business plan.
These issues are directly related to the business continuity and management stability of medical corporations, making it essential to make comprehensive judgments with advice from multiple perspectives, including tax accountants, certified public accountants, lawyers, and specialists in medical M&A.
Importance of Planned Succession and Expert Collaboration
Inheritance tax measures and business succession for medical corporations are not merely tax processing but complex processes involving a wide range of factors such as the perpetuity of the corporation, the development of successors, and contributions to regional medical care. Even the valuation of equity interests alone requires specialized knowledge and experience, and consistent support is essential from the selection and execution of subsequent measure schemes to aftercare.
In particular, to create plans that can flexibly respond to changes in the external environment, such as revisions to tax laws, changes in the medical system, and the progress of regional medical care planning, the expertise of professionals familiar with the medical industry is indispensable. At M&A Medical, M&A advisors who deeply understand the characteristics of medical corporations collaborate with specialists in each field, such as tax accountants and lawyers, to propose optimal succession plans tailored to your corporation’s situation. By consulting early, the range of options expands, increasing the possibility of achieving succession under more favorable terms. Directors and hospital directors interested in strategic business succession with a view to the future of their medical corporation are encouraged to take advantage of M&A Medical’s free consultation.
For Medical Succession Consultations, Contact M&A Medical
M&A Medical is a specialized M&A and business succession support service for medical institutions. As an M&A support institution certified by the Small and Medium Enterprise Agency, we support the transfer of clinics and medical corporations struggling with a lack of successors, as well as strategic acquisitions, on a success fee basis.
- Initial consultation and preliminary assessment are free
- No upfront fees or monthly charges (success fee only)
- Strict confidentiality (proceeds under NDA)
- Support available nationwide in all 47 prefectures and for all medical specialties
Please consult with us early, even if you only want to know the market value, have no successor, or are considering joining a group.