Understanding your true return on investment (ROI) requires looking beyond the "Gross Yield" advertised by agencies. In 2026, the gap between gross and net profit in the Costa del Sol is influenced by evolving tax laws and local maintenance costs.

1. The Core Formula

To find your true profit, you must account for the "Spanish Friction" costs during the purchase and the ongoing operational expenses.

• Gross Yield: (Annual Rental Income ÷ Purchase Price) x 100

• Net Yield: ((Annual Income - Annual Expenses) ÷ Total Investment) x 10

2. Estimating Your 2026 Expenses

When running your numbers, ensure you subtract these standard monthly and annual costs:

Fixed Annual Costs

• IBI (Property Tax): Local town hall tax based on the cadastral value.

• Basura (Rubbish Collection): A small bi-annual fee.

• Community Fees (Comunidad): Critical if your property has a pool, elevator, or gated security.

Operational Costs

• Property Management: Typically 20% to 25% for full-service holiday rental management.

• Utilities: Internet, water, and electricity (if not paid by the tenant).

• Home Insurance: Specialized rental coverage is now standard in 2026

3. The "2.5% Rule"

In the current market, we advise our clients to assume a 2.5% to 3% deduction from the gross yield to reach a realistic net figure.

Example: A property in Fuengirola advertised at a 7.5% Gross Yield typically settles at a 4.7% - 5% Net Yield once all Spanish taxes and maintenance are settled.

4. Why "Net" is the Only Metric That Matters

As institutional investors move into Málaga City, they are driving prices up. To compete, individual investors must focus on yield efficiency. Targeting properties with low community fees or modernized energy systems (reducing utility overhead) is the key to protecting your margins in 2026.