Introduction: Leverage is a Double-Edged Sword
One of the major characteristics of real estate investment is the "leverage effect" utilizing borrowed funds. The ability to acquire large assets with minimal personal capital and build wealth while repaying loans from rental income is an attraction unique to real estate investing compared to other investments.
However, while leverage can become a powerful weapon when used correctly, over-reliance can lead to fatal consequences. This article introduces a case study of an investor who extensively used full loans to rapidly expand their portfolio and was driven to financial distress.
Case Study: Mr. C Who Purchased 4 Properties in 3 Years Using Full Loans
The Process of Rapid Expansion
Mr. C (30s), who works at an IT company, started real estate investing backed by his stable annual income of 6.5 million yen. He purchased his first studio condominium unit (18 million yen) with a full loan and was steadily receiving rental income.
Thinking "I want to build assets faster," Mr. C purchased an additional 3 properties over 2 years. All were financed with full loans or over-loans. The total value of his 4 properties reached approximately 85 million yen, with combined annual loan payments totaling about 4.8 million yen.
Dangerous Payment Ratio Levels
The combined annual rental income from Mr. C's 4 properties was approximately 5.9 million yen. After deducting loan payments of 4.8 million yen, only 1.1 million yen remained. After paying management fees, repair reserves, property taxes, insurance premiums, and other expenses, there was almost nothing left over.
The payment ratio (loan payments as a percentage of rental income) was approximately 81%. This significantly exceeded the healthy level of 50% or below. Mr. C thought "it's okay because I have my primary job income," but this judgment would later cause major problems.
The Chain Reaction of Financial Distress
In the third year after purchase, the worst-case scenario became reality. First, vacancies occurred simultaneously in 2 properties, resulting in 3 vacant units. Restoration costs of approximately 900,000 yen were needed all at once. Around the same time, air conditioning and water heater failures occurred in one property, generating repair costs of about 450,000 yen.
While monthly rental income decreased, loan payment amounts remained unchanged. Cash reserves rapidly depleted, and Mr. C fell into a situation where he had to supplement loan payments from his primary job salary. Furthermore, rising interest rates increased payments on loans structured with variable rates. Monthly out-of-pocket expenses exceeded 100,000 yen, creating difficulties even in securing living expenses.
Ultimately, Mr. C was forced to quickly sell 2 properties at prices below market value. Even after repaying the remaining debt, a loss of approximately 4 million yen remained.
Three Reasons Why Excessive Leverage is Dangerous
No Resilience to Vacancies and Repairs
When leverage is high, even slight decreases in rental income can turn cash flow negative. A situation where just one vacancy causes difficulties in loan repayment is closer to gambling than investing.
Vulnerability to Interest Rate Risk
When loans are structured with variable rates, rising interest rates increase payment amounts. The higher the leverage, the greater the impact of interest rate increases. There is no guarantee that the current low-interest environment will continue indefinitely.
Narrowed Exit Strategy Options
High leverage makes it easier to fall into an "over-loan situation" where remaining loan debt exceeds the property's market value. In this state, even selling the property cannot fully repay the loan, making disposal of the property itself difficult.
Guidelines for Appropriate Leverage
Aim for Payment Ratios of 50% or Below
We recommend keeping the ratio of loan payments to rental income (payment ratio) at 50% or below. Ideally, the low 40% range is preferable. When the payment ratio exceeds 50%, cash flow tends to deteriorate when vacancies or repair costs occur.
Secure Personal Capital of 20-30% of Property Value
Even when full loans are possible, investing personal capital of about 20-30% of the property value can reduce monthly payments and ensure safe cash flow. Closing costs (about 7-10% of property value) should be covered with personal funds at minimum.
Maintain Cash Reserves
Even after property purchase, maintain cash reserves of at least 6 months' worth of rental income to prepare for emergency repair costs and loan payments during vacancy periods. Purchasing the next property without these funds is dangerous behavior.
To Properly Utilize Leverage
Gradual Scale Expansion
When adding properties, consider the next property only after one property's cash flow has stabilized. It's wise to accumulate at least 1-2 years of operational track record and proceed to the next step when cash reserves have sufficiently recovered.
Conduct Stress Tests
Use a cash flow simulator to simulate multiple stress scenarios including rising vacancy rates, interest rate increases, and repair cost occurrences. Investment should only be executed after confirming that even worst-case scenarios won't impair loan repayments.
Consider Fixed Interest Rates
To reduce interest rate risk, consider converting some loans to fixed rates. While variable rates result in lower initial payments, the peace of mind from fixed rates has significant value during rising interest rate periods.
Summary: Use Leverage Strategically
Leverage is a powerful tool in real estate investment, but misuse can strangle investors. The lessons to learn from Mr. C's case are the following three points:
- Strictly maintain payment ratios below 50%: Ensure comfortable cash flow margins
- Always maintain cash reserves: Have financial flexibility to handle emergencies
- Expand scale gradually: Don't rush; build assets steadily step by step
"The amount you can borrow" differs from "the amount you should borrow." Just because financial institutions will lend doesn't mean you should borrow up to the limit. Use a loan simulator to carefully plan repayment schedules and utilize leverage within reasonable bounds.