Return on equity in property: how leverage works

By Loro Real Estate team · Last updated: July 2026

Most investors do not pay for a rented apartment entirely themselves; they combine equity with a bank loan. Rental yield alone therefore cannot assess an investment, as it does not show how your own money performs. Return on equity answers that question. This guide explains the formula, works through an honest complete example and shows how leverage can move return on equity up or down.

A note before we begin: all figures here are illustrative assumptions, not forecasts or promises of returns. Interest, rents and costs change. Recalculate every example using your own conservative figures.

What return on equity tells you

Return on equity measures the annual return earned on your equity contribution. It uses the annual surplus after interest: annual rent excluding service charges, less non-recoverable operating costs and loan interest.

Return on equity (%) = annual surplus after interest / equity invested × 100

The difference from property or rental yield is fundamental: gross and net rental yield assess rent against price or total investment without financing. Return on equity looks at your situation: the same property produces entirely different results depending on equity and interest. Both belong together: rental yield evaluates the property, return on equity the financing structure.

Importantly, principal repayments are not deducted as costs in this calculation. They do not consume wealth but shift it: each payment reduces debt and increases net assets. For this return metric, interest is the only financing cost.

Worked example: return on equity step by step

Let us work through a complete example, deliberately conservative and without flattering the figures.

• Purchase price: €300,000
• Purchase costs (approx. 6.5%, excluding buyer’s estate agent commission): €19,500
• Total investment: €319,500
• Equity invested: €60,000
• Bank loan: €259,500
• Annual net rent excluding service charges: €12,000
• Non-recoverable operating costs (management, maintenance reserves and others): €1,800
• Assumed annual loan interest: 3.5%, purely illustrative; check current terms. This is around €9,083 interest in year one.

Annual surplus after interest: 12,000 − 1,800 − 9,083 = €1,117.

Return on equity = 1,117 / 60,000 × 100 ≈ 1.9%

The result may look unremarkable, which is exactly the honesty a calculation needs. Two points complete the picture. First, you also repay the loan. That wealth accumulation is not included in the metric but is real; with an annuity loan, interest also decreases each year, tending to raise the surplus at constant rent. Second, tax effects such as depreciation and deductible rental expenses are not included here. They may significantly alter the after-tax result and should be discussed with your tax adviser.

Property leverage: opportunity and risk

Leverage describes how debt changes return on equity. The principle: while the property's total return before financing exceeds borrowing interest, every borrowed euro works for you. The gap between property yield and interest accrues to equity, and less equity strengthens the effect. This is especially noticeable in larger investments, for example when you buy an apartment building in Mannheim and deliberately choose the debt share.

But leverage works both ways. If interest exceeds property yield, each borrowed euro costs more than it earns, reducing return on equity below property yield. Our example shows exactly this: net property yield is around 3.2% (€10,200 surplus before interest on €319,500 total investment), against assumed interest of 3.5%, so leverage slightly lowers return on equity below property yield. With interest appreciably below property yield, the same financing would lift return on equity above it.

Falling rent through vacancy or default, or rising costs, further worsens negative leverage because debt service continues regardless of income. Heavy borrowing therefore increases risk just as much as opportunity.

What limits leverage in practice

On paper, ever more debt might appear to raise return on equity without limit. In practice, several factors impose limits, for good reason:

• Creditworthiness and debt-service capacity. The bank reviews income, household budget and assets. Payments must remain affordable even during temporary rental default.
• Mortgage lending value. Banks base loan size on the property's lending value, not the buyer's wishes. Purchase costs generally require equity, and very high loan-to-value ratios are usually financed, if at all, only with interest premiums.
• Reserves. Putting all capital into financing leaves no buffer for maintenance, special assessments or vacancy. Liquid reserves belong in every sound financing structure.
• Interest rate risk on refinancing. After the fixed period, the balance is refinanced at the prevailing market rate. A high balance combined with rising rates can reverse previously positive leverage; greater leverage makes calculations more sensitive.

Conclusion: leverage is a tool, not a goal

Leverage helps make property interesting for long-term wealth-building: limited equity can buy a large asset, repaid through rent and principal payments. Maximum leverage is not an end in itself. What matters is financing that withstands weaker periods, with enough equity, sound reserves, a fixed-interest period suited to your life plans and conservative assumptions.

Since 2018, Loro Real Estate GmbH has supported private investors across Rhein-Neckar and Hessen on the buyer side, with curated, vetted properties and no buyer's brokerage commission. We arrange suitable financing through partner banks, putting affordability before the highest return metric. Explore your own situation with our interactive investment calculator or contact us for a non-binding first consultation.

This article is for information only and does not constitute investment, tax or legal advice.

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