Surface Yield Calculation Method and Meaning
Surface yield (gross yield) is the most fundamental indicator showing the profitability of real estate investment. The calculation method is simple: "Annual rental income ÷ Property purchase price × 100". For example, if the annual rental income is 3 million yen and the property price is 30 million yen, the surface yield would be 10%.
Most yields listed on real estate portal sites and property advertisements are surface yields. While this is a convenient indicator for rough comparisons between properties, making investment decisions based solely on this figure is dangerous since it doesn't include any actual management costs.
An important point to note about surface yield is that it's often calculated based on "full occupancy assumptions". Since actual rental income when vacancies occur will be less than projected, surface yield should be considered merely as "a guideline for the most optimistic scenario".
Actual Yield Calculation Method and Importance
Actual yield (net yield) is an indicator that shows more realistic profitability after deducting actual management costs. The calculation formula is "(Annual rental income - Annual expenses) ÷ (Property purchase price + Purchase-related costs) × 100".
Annual expenses include management fees, repair reserves, property tax, city planning tax, fire insurance premiums, property management company fees, common area utility costs, etc. Additionally, purchase-related costs such as real estate acquisition tax, registration license tax, brokerage fees, and judicial scrivener fees must also be added to the denominator.
The difference between surface yield and actual yield is generally said to be around 2-4%. Even if the surface yield looks attractive, it's not uncommon for less money to remain after deducting expenses than expected. When considering property purchases, it's important to make decisions only after calculating the actual yield. Using our yield simulator makes it easy to compare surface yield and actual yield.
表面利回り・実質利回りをかんたんに計算できます
利回りシミュレーターで今すぐ計算してみるOften Overlooked Points in Yield Calculations
One common pitfall in yield calculations is estimating future repair costs. Especially for older properties, there's potential for large-scale repair expenses such as exterior painting, roof waterproofing, and water/drainage pipe replacement. If these costs aren't proportionally incorporated into annual expenses, cash flow can significantly deteriorate when repairs become necessary.
Vacancy rate assumptions are also important. Measures for handling vacancies are also explained in 5 Key Points for Successful Apartment Management. Yield calculations based on the premise of constant full occupancy are unrealistic. By checking past occupancy rate records and calculating yields with a certain vacancy rate in mind, you can make more realistic decisions. Renovation costs during tenant turnover and advertising costs for recruitment are also often forgotten expenses.
Why You Shouldn't Judge Based on Yield Alone
While yield is an important indicator for judging property profitability, selecting properties based solely on high yields is dangerous. Properties with high yields usually have underlying reasons. For example, factors such as poor location, old age, or low occupancy rates may have driven down the price, resulting in a high calculated yield.
What's important is the "sustainability" of the yield. Even if the current yield is high, long-term profits may not meet expectations if there's high vacancy risk or major repairs are pending. Taking the first step toward becoming a successful owner requires making investment decisions based on comprehensive judgment, not just yield figures, but also considering location prospects, building condition, and surrounding competition. The approach to yields also varies depending on whether you choose condominiums or apartment buildings. For details, see Comparison of Condominiums and Apartment Buildings. For guidance on the required initial capital before starting investment, see How Much Initial Capital is Needed?. Those who want to understand overall cash flow can also use our Cash Flow Simulator.