Understanding the true performance metrics of your property portfolio. Learn how to calculate the numbers that actually matter to your bottom line.
Many new investors get caught up in the excitement of high gross yields advertised by sourcing agents, only to find their actual bank balance barely moving each month. Understanding the distinction between yield and ROI is the difference between buying a liability and building a profitable portfolio.
The simplest and most commonly quoted figure by estate agents. It measures the annual rental income as a percentage of the property's purchase price, completely ignoring the costs of running the asset.
A 10% gross yield looks fantastic on paper until you realise the service charges on that city-centre flat consume half the rent. Use gross yield strictly as a rapid filtering tool when browsing Rightmove, never as a basis for a purchasing decision.
A far more accurate reflection of the property's performance. It deducts the day-to-day running costs from the rental income before calculating the percentage.
Letting agent management fees (typically 10-12% + VAT), landlord insurance, ground rent, service charges, an allowance for void periods (assume 3-4 weeks per year), and a maintenance sinking fund (budget 1% of the property value annually).
Do not include your mortgage costs here. Yield measures the performance of the asset itself, regardless of how you chose to finance it. A cash buyer and a mortgaged buyer will have the exact same net yield on the same house.
This is the metric that actually matters to your bank balance. ROI (often called Return on Capital Employed or ROCE in property circles) measures the profit you make relative to the actual cash you have tied up in the deal.
This isn't just your 25% deposit. You must include Stamp Duty Land Tax (factoring in the 3% surcharge), solicitor fees, mortgage broker fees, survey costs, and any initial refurbishment spend required to get the property let.
Your rental income minus all operating costs AND your annual mortgage interest payments. This is the actual cash left in your pocket at the end of the year (before income or corporation tax).
Use Net Yield to compare two different properties against each other to see which is the better-performing asset fundamentally.
Use ROI to compare your property investment against entirely different asset classes (like index funds, bonds, or a high-interest savings account) to ensure your capital is working as hard as possible.