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What Is a Sanpai Real Estate Agent? Pros, Cons, and Risk Avoidance for Beginners

This guide explains the advantages and disadvantages of sanpai agents, who use contracts made for third parties, and how to identify dishonest operators. It provides practical knowledge to help first-time real estate investors avoid costly mistakes.

Last updated: About 2 min read

In real estate investing, you may hear the term "san-i agent." While this structure is used as a lawful way to reduce registration and license tax, there have also been reports of trouble involving bad actors. In this article, we explain for beginning investors how san-i agents work, their advantages and disadvantages, and how to avoid the risks in a clear and practical way.

What Is a San-i Agent?

A san-i agent is a real estate company that enters into a "contract for the benefit of a third party" (san-i contract). In a standard real estate sale, registration and license tax is incurred when ownership is transferred from "seller → buyer" (0.15% for land and 2% of the assessed property value). For a property worth 40 million yen, that creates a tax burden of 800,000 yen.

With a san-i contract, the flow becomes "seller → real estate company → buyer." By using omitted intermediate registration, it is possible to avoid double ownership transfer registration and significantly reduce the tax burden. After the 2004 revision of the Real Estate Registration Act, only legally recognized san-i agents have been allowed to use this structure lawfully.

Benefits of Using a San-i Agent

  • Substantial reduction in registration and license tax: Omitted intermediate registration can help avoid a double tax burden
  • Extended defect warranty liability: For properties purchased through a san-i agent, defect warranty liability can be pursued for two years from the purchase date (compared with one year in ordinary brokerage)
  • Potential for full financing or over-financing: Many companies also arrange financing with financial institutions, and in some cases higher loan amounts may be available
  • Opportunity to acquire property below market price: Because the company purchases from the seller at a lower price, there may be opportunities to be introduced to properties priced below the broader market

Drawbacks of San-i Agents and Key Cautions

The san-i agent business model is based on "buying cheaply from the seller and selling at a higher price to the buyer." Because of that, the following risks exist.

  • Inflated pricing: Because the agent's profit is added on, some properties may be offered at prices above market level
  • Steering toward high-interest financing: Some agents recommend high-interest loans in order to close quickly
  • Risk of lower yields: If you purchase at a price that includes the agent's margin, your yield may decline and you may face a loss when you sell

How Can You Spot a Dishonest San-i Agent?

Traits of dishonest agents

  • They emphasize tempting phrases such as "full occupancy guaranteed" or "repair costs covered by the seller" (phrases that also became an issue in the Pumpkin Carriage case)
  • They pressure you to buy quickly (for example, "If you do not decide now, someone else will take it")
  • They strongly push high-interest financing

Traits of people who are easier targets

Beginning investors who do not understand real estate market pricing are the most likely to be targeted. Building a sound sense of market pricing and being able to identify unfair markups is the foundation of self-protection.

Criteria for Deciding Whether to Use a San-i Agent

Not every san-i agent is a problem. If you understand the structure correctly and use careful judgment to identify trustworthy agents, you can benefit from the original advantage of acquiring real estate while lawfully reducing taxes. It is essential to verify the cost-benefit balance, including yield calculations.

Related reading

  • Mitigate Risk in Real Estate Investing With a Second Opinion | How expert support helps prevent mistakes
  • Avoid Losing Money When Selling Real Estate! How to spot broker positioning talk and the trap of dual agency
  • Is Real Estate Investing Difficult Because of a Lack of Comprehensive Capability? Explaining the three barriers of tax, legal, and building expertise

Frequently Asked Questions (FAQ)

Q. Is a san-i contract illegal?

A. A san-i contract conducted by a legally recognized san-i agent is lawful. However, you should always confirm the agent's registration status and the contract details.

Q. How long does defect warranty liability last for a property purchased through a san-i agent?

A. It lasts for two years from the purchase date. That is longer than ordinary brokerage (one year), which makes it a favorable point for the buyer.

Q. Are properties sold through san-i agents more expensive than the market?

A. In many cases, the agent's profit margin is added on. It is important to compare multiple properties and understand the surrounding market before making a decision.

Q. What should I do if I was deceived by a dishonest san-i agent?

A. Consulting the Consumer Affairs Agency, the Ministry of Land, Infrastructure, Transport and Tourism, or an attorney can be effective. Be sure to keep all contract documents.

Daisuke Inazawa, President & CEO of INA&Associates Inc.

Author

President & CEOINA&Associates Inc.

President & CEO of INA&Associates Inc. Leads real estate brokerage, rental leasing, and property management across Greater Tokyo and the Kansai region. Specialises in income-property investment strategy and advisory for ultra-high-net-worth individuals.

Daisuke Inazawa is the President and CEO of INA&Associates Inc., a Japanese real estate firm headquartered in Osaka with a Tokyo branch. He leads the company's three core businesses — real estate sales brokerage, rental leasing, and property management — across the Greater Tokyo Area and the Kansai region.

His areas of expertise include investment strategy for income-generating real estate, profitability optimisation of rental operations, real estate advisory for ultra-high-net-worth individuals (UHNWIs) and institutional investors, and cross-border real estate investment. He provides data-driven, long-horizon advisory to investors in Japan and overseas.

Under the management philosophy "a company's most important asset is its people," he positions INA&Associates as a "people-investment company" and is committed to sustainable corporate-value creation through talent development. He also writes and speaks publicly on leadership and organisational culture in times of change.

He has passed eleven Japanese professional qualification examinations: Licensed Real Estate Broker (Takken), Certified Real Estate Consulting Master, Licensed Condominium Manager, Licensed Building Management Supervisor, Certified Rental Housing Management Professional, Gyōseishoshi Lawyer (administrative scrivener), Certified Personal Information Protection Officer, Class-A Fire Prevention Manager, Certified Auctioned Real Estate Specialist, Certified Condominium Maintenance Engineer, and Licensed Moneylending Operations Supervisor.

  • Licensed Real Estate Broker (Takken)
  • Certified Real Estate Consulting Master
  • Licensed Condominium Manager
  • Licensed Building Management Supervisor
  • Certified Rental Housing Management Professional
  • Gyōseishoshi Lawyer (Administrative Scrivener)
  • Certified Personal Information Protection Officer
  • Class-A Fire Prevention Manager
  • Certified Auctioned Real Estate Specialist
  • Certified Condominium Maintenance Engineer
  • Licensed Moneylending Operations Supervisor