Beyond Rental Income: How to Measure the True Return on a Commercial Property Investment in Ghana

Investing in commercial property can provide recurring rental income, potential capital appreciation and a valuable long-term asset. However, a property that generates substantial rental revenue is not necessarily a profitable investment.

For property owners, developers, institutional investors and individuals building a real estate portfolio in Ghana, the critical question is not simply, “How much rent does this property generate?” It is, “How much income does the property actually produce after operating expenses, vacancies, taxes and financing costs?”

This distinction matters in a market where rental demand, property values, occupancy levels and operating costs can vary significantly by location and property type. Ghana Property Centre's third-quarter 2026 market report, for example, reported a gross rental yield of 5.29% for three-bedroom properties in Accra. That figure is a useful illustration of the difference between rental yield and the return an investor ultimately retains.

At RDK Consulting Services, we believe that sound property investment decisions should be driven by reliable financial information, realistic assumptions and disciplined financial management.

This article explains the key measures investors should use to evaluate commercial property investments in Ghana and how professional financial reporting can help protect and improve investment returns.

1. Start with the difference between rental revenue and investment return

Consider a commercial property in Accra that generates GH₵600,000 in annual rental income.

At first glance, the property may appear attractive. However, the landlord must consider the costs of maintaining the property, managing tenants, insuring the building, paying applicable property-related charges and managing periods when space is vacant.

The landlord may also have borrowed money to acquire the property, creating additional interest and principal repayment obligations.

Consequently, rental revenue is only the starting point of the investment analysis. The actual return depends on the property's net operating income, acquisition cost, financing structure, taxes and eventual resale value.

Investors should therefore distinguish between three important concepts:

• Gross rental yield: Annual rental income expressed as a percentage of the property's value or acquisition cost.
• Net operating income (NOI): Property operating revenue less operating expenses, before financing costs and income taxes.
• Return on investment (ROI): A broader measure of the return generated relative to the capital invested, with the calculation defined according to the investor's purpose.

Using the right measure prevents investors from confusing a property's ability to generate rent with its ability to generate an acceptable financial return.

2. Calculate gross rental yield — but do not stop there

Gross rental yield is one of the simplest ways to assess a property investment. The formula is:

For example, assume an investor purchases a commercial property in Tema for GH₵5 million and expects to earn GH₵600,000 in annual rent. The gross rental yield would be:

A 12% gross yield may initially appear attractive. However, it does not account for vacancy periods, repairs, property management fees, insurance, property rates or other operating costs. It also ignores the cost of borrowing and taxes.

Investors should therefore use gross yield as an initial screening tool rather than a final investment decision.

3. Determine the property's net operating income

Net operating income provides a more useful indication of the income-generating performance of a property. It is calculated by deducting operating expenses from effective rental income.

Effective rental income reflects the rental revenue expected after allowing for vacancies, rent concessions and uncollected amounts, as appropriate.

Operating expenses may include:

• Property management and rent collection fees.
• Repairs and routine maintenance.
• Building insurance.
• Property rates and other applicable property charges.
• Landlord-paid utilities and common-area costs.
• Facilities management and other recurring operating costs.

Care is required when classifying expenses. Mortgage principal repayments are financing cash flows, not operating expenses. Capital improvements should also be distinguished from routine maintenance and accounted for appropriately.

Illustrative example: Commercial property in Ghana

Assume the property has the following annual financial profile.

The property generates GH₵600,000 in potential annual rent, but its net operating income is only GH₵408,600 after the assumed vacancy and operating costs. This is a more useful starting point for evaluating the investment's underlying performance.

4. Calculate the net rental yield

Net rental yield measures the property's net operating income against the capital invested in acquiring it. Using the example above:

The property's gross rental yield is 12%, while its net operating yield is approximately 8.17%. That difference demonstrates why investors should look beyond advertised rental income when comparing investment opportunities.

For more meaningful comparisons, investors should also consider acquisition expenses, initial renovation costs, furnishing, professional fees and other capital required to make the property ready for letting. Including these amounts in the investment base can materially change the reported yield.

5. Understand the effect of vacancy and tenant arrears

A property can have a strong advertised rental rate and still underperform if it takes too long to secure tenants. Vacancy periods reduce income, but many ownership expenses continue regardless of whether the property is occupied.

Ghana Property Centre's Q3 2026 Time to Let and Sell Index reported a median of 148 days to let homes across Ghana. The result was based on a relatively small sample so it should be treated as an indicative market signal rather than a universal forecast for commercial property.

For commercial property owners, the relevant questions include:

• How long does comparable space typically remain vacant?
• Is the rent consistent with prevailing market conditions?
• Are tenants paying on time?
• How concentrated is rental income among a few major tenants?
• Will the property remain financially viable if its largest tenant leaves?

Investors should prepare scenarios that model different occupancy levels, rental rates and collection periods. A property that remains profitable under a reasonable downside scenario is generally more resilient than one whose success depends on uninterrupted occupancy.

6. Account for taxes before estimating the final return

Tax is an important consideration when evaluating rental property in Ghana.

Property owners should confirm the applicable tax treatment for their specific circumstances, including whether the property is held personally or through a company, the nature of the letting arrangement, the relevant withholding obligations and the interaction with other applicable income tax rules.

Investors should not automatically treat the withholding tax of 8% for residential premises and 15% for commercial and non-residential premises as their entire tax liability without reviewing the relevant legislation and their circumstances.

Other matters may include the tax consequences of property acquisition, capital improvements, disposal gains and the treatment of financing expenses. These should be assessed separately where relevant.

The practical lesson: calculate investment returns using a clearly defined, tax-consistent basis. Otherwise, two properties may appear comparable while producing very different after-tax cash flows.

7. Assess financing costs and cash-on-cash return

Many investors acquire commercial properties using a combination of equity and borrowing. Leverage can increase the return on the investor's equity when the property performs well. However, it can also magnify losses when rental income falls or financing costs rise.

Consider a property generating GH₵408,600 in annual net operating income. If the owner has a mortgage, the remaining cash flow will depend on interest, principal repayments, financing fees and the timing of rental collections. A useful measure is the cash-on-cash return:

For this calculation, define cash flow consistently after debt service and before income tax if that is the chosen basis.

For example, if the investor contributes GH₵2 million in equity and receives GH₵200,000 in annual pre-tax cash flow after debt service, the cash-on-cash return is 10%.

However, this figure should not be confused with the property's net operating yield. One measures the return on the investor's equity after financing; the other measures the property's operating performance before financing.

Investors should also test whether rental income can cover debt service during vacancies, major repairs or unexpected changes in financing costs.

8. Measure capital appreciation without relying on speculation

Rental income is only one potential source of return. Investors may also benefit from an increase in the property's market value. However, expected appreciation should not be treated as guaranteed income.

Changes in property values can be influenced by location, infrastructure development, tenant demand, building condition, financing conditions, supply and demand, and broader economic developments.

A disciplined investment appraisal should distinguish between:

• Actual rental cash flows.
• Realised gains from property disposal.
• Unrealised changes in estimated market value.
• Acquisition, improvement and disposal costs.

Investors evaluating a long-term investment may use an internal rate of return (IRR) analysis to estimate the annualised return across the holding period, taking account of the timing of acquisition costs, rental cash flows, capital expenditure and eventual disposal proceeds.

The assumptions should be supported by market evidence and tested under conservative scenarios.

9. Use financial reporting to improve property performance

Property investment requires more than collecting rent and paying bills. It requires reliable information that enables owners to identify problems early and make informed decisions.

A property owner or real estate company should maintain records that allow management to monitor:

• Rental income by property, unit and tenant.
• Occupancy, arrears and lease expiry dates.
• Operating expenses against budget.
• Maintenance expenditure and capital improvements.
• Tax obligations and payment deadlines.
• Loan balances, interest costs and repayment schedules.
• Actual returns against the original investment appraisal.

For investors managing multiple properties, an integrated accounting system can make it easier to consolidate financial information, compare performance across properties and prepare timely management reports.

Regular reporting also helps investors distinguish between properties that generate strong cash flow and those that may require rent reviews, cost reductions, additional capital or a reassessment of the investment strategy.

10. A practical checklist before investing in commercial property

Before acquiring a commercial property or committing additional capital to an existing asset, investors should ask:

• Have I independently assessed the acquisition price against comparable properties?
• Is the expected rent supported by market evidence and credible tenant demand?
• Have I included realistic vacancy and rent collection assumptions?
• Are operating costs, maintenance and future capital expenditure adequately budgeted?
• Have I reviewed the lease agreements, tenant concentration and outstanding arrears?
• Have I assessed the applicable tax obligations?
• Can the property support its financing commitments under a downside scenario?
• Have I calculated both net operating yield and cash-on-cash return?
• Have I tested the investment's sensitivity to changes in rent, occupancy, expenses and resale value?
• Do I have a reliable system for monitoring performance after acquisition?

A negative answer does not necessarily mean the investment should be rejected. It means that further investigation may be needed before the investor commits capital.

Conclusion: Make property investment decisions based on financial evidence

Commercial property can be a valuable component of a diversified investment portfolio, but rental income alone does not determine whether an investment is successful.

Investors need to understand the relationship between rental revenue, operating expenses, vacancy, taxation, financing and capital appreciation. They also need reliable financial records and regular performance reporting to determine whether their properties are delivering the returns originally expected.

For property developers, landlords and real estate investors in Ghana, a structured financial assessment can help identify risks, improve cash flow management and support better investment decisions.

At RDK Consulting Services, we support businesses and investors through accounting and financial reporting, tax advisory, financial analysis, due diligence and related business advisory services.

Are you confident that your property portfolio is generating the returns you expect? Contact RDK Consulting Services to discuss a property portfolio profitability review and identify opportunities to strengthen financial performance, improve reporting and manage investment risks.