A recent in-depth review of a substantial £3.4 million property portfolio, comprising 20 residential and commercial properties across England, Scotland, and Wales, has highlighted the critical difference between headline rental income and the actual cashflow return on equity. While the portfolio generated nearly £209,000 in annual rent, an initial analysis revealed a pre-tax cashflow return on equity of approximately 7.8%.
The portfolio, owned by a married couple with family involvement in the rental business, held 19 properties personally and one via a limited company. With an estimated £1.07 million in apparent equity, and after deducting non-finance operating costs of around £52,185 and existing annual mortgage interest of £73,100, the pre-tax cashflow stood at approximately £83,455 per year. This initial return, though seemingly healthy, was heavily dependent on relatively inexpensive borrowing, with an average mortgage interest cost of about 3.13% across the properties.
However, the analysis, conducted by Property118 consultants, underscored the vulnerability of these returns to changes in borrowing costs. A stress test, assuming a mortgage interest rate of 6% for refinancing purposes, painted a starkly different picture. Under this scenario, annual mortgage interest would surge to approximately £140,040. Consequently, the estimated pre-tax cashflow would plummet from £83,455 to a mere £16,515 annually, reducing the cashflow return on equity to just 1.54%.
Furthermore, the increased cost of borrowing would render nine of the 20 properties individually cashflow negative. This illustrates that while the portfolio itself does not necessarily become a poor investment, its financial resilience is significantly eroded when the potential for higher refinancing costs is factored in. The findings suggest that relying solely on gross rental income or perceived equity value can obscure the true financial health and sensitivity of a property investment.
This case study serves as a crucial reminder for UK landlords to conduct comprehensive, regular reviews of their portfolios, extending beyond simple valuations or rent-to-mortgage ratios. Understanding the cashflow generated by equity, and stress-testing against potential interest rate hikes, is vital for long-term planning, particularly when considering incorporation, refinancing, or succession strategies in a dynamic economic environment.
Source: Property118