How do I calculate the return on a rental property?

In short: The return on a rental property has two parts: rental income (cap rate) and appreciation of the asset. To find the real return, subtract operating costs (vacancy, maintenance, management) and transaction costs (property transfer tax/ITBI, deed). In Florianópolis, a well-calculated total gross return reaches 14–16% per year in the most sought-after neighborhoods.

Step 1 — Calculate the cap rate (rental yield)

The cap rate is the ratio between annual rent and the property’s value:

Cap rate = (Monthly rent × 12) ÷ Property value × 100

Example: a R$480,000 apartment rented for R$2,700/month

• Annual rent = R$2,700 × 12 = R$32,400
• Cap rate = R$32,400 ÷ R$480,000 × 100 = 6.75% per year

Step 2 — Add appreciation

The property’s return also includes the appreciation of the asset over the period:

Total gross return = Cap rate + Annual appreciation

Example: 6.75% (rent) + 9.44% (Florianópolis average appreciation, 2025) = 16.19% total gross return per year

Step 3 — Deduct operating costs

These costs reduce the effective return:

• Vacancy: estimated at 4% per year → reduces annual rent by 4% (equivalent to about 15 days without a tenant per year)
• Maintenance: 0.5–1% of the property’s value per year → R$2,400–R$4,800/year for a R$480,000 property
• Management fee (agency): ~10% of monthly rent → R$270/month = R$3,240/year
• Property tax (IPTU) and condo fees during vacancy: costs that fall on the landlord while there’s no tenant

After these deductions, the net cap rate lands around 4.5–5% per year.

Step 4 — Factor in acquisition costs

The real return starts from the total cost of entering the investment, not just the property’s price:

• Property transfer tax (ITBI): ~2% of value
• Deed and registration: ~1–2% of value
• Total transaction costs: ~3–4% of value

To calculate the return on total capital invested, add the purchase price plus transaction costs into the cap rate’s denominator.

Full example

A R$480,000 apartment in Córrego Grande:

• Total acquisition cost (with ITBI + deed): R$496,800
• Monthly rent: R$2,700
• Gross cap rate: 6.75%
• (-) Vacancy 4%: -R$1,296/year
• (-) Maintenance 0.75%: -R$3,726/year
• (-) Management 10%: -R$3,240/year
• Net annual rent: ~R$24,138 → net cap rate: ~4.86%
• (+) Appreciation 9.44%: +R$45,312
• Estimated total net return: ~14.0% per year

A simple rule of thumb for Florianópolis

• Cap rate above 6%: a good rent-to-price ratio — go for it
• Cap rate between 4–6%: a reasonable return if appreciation makes up the difference — evaluate the neighborhood
• Cap rate below 4%: a property that’s expensive relative to rent — needs strong appreciation to be worth it

Regente as your analysis partner

Before buying for investment, Regente evaluates the property using the Direct Market Comparison Method — and can estimate its rental potential based on similar properties in the area. The investor makes the decision based on data, not the seller’s estimate.

Related questions

• What is the rental yield in Florianópolis?
• Is it worth investing in real estate in Florianópolis?
• Which Florianópolis neighborhoods appreciate the most?
• Real estate or REITs (FIIs): which is the better investment?

Want to calculate the return on a specific property using real market data? Talk to Regente.