How to Calculate the Profitability of a Rental Property

The vast majority of people who buy their first rental property look at only one number: the monthly rent. It's the start of the mistake. Here are the formulas we use to evaluate if a property is truly profitable — including the taxes almost everyone ignores.

In summary: to determine if a property is profitable, calculate the gross yield (annual rent ÷ purchase price), deduct expenses and taxes for the net yield, and add appreciation for the 10-year ROI. In the Greater Metropolitan Area, a realistic net yield before taxes is around 4%–6%, and the rental income tax (~12.75% effective) reduces it by almost a percentage point more.

1. Gross Yield

This is the first filter. It indicates what percentage of the price you recover each year, without deducting anything:

Gross yield = (Monthly rent × 12) ÷ Purchase price × 100

In the GMA, a healthy residential gross yield ranges between 5% and 8%. Vacation rentals (Guanacaste, Jacó, tourist areas) can exceed 8%–12% in high season, but with more vacancy, management, and costs. If your number is well below 5%, you're probably overpaying; if it's well above, validate the area and the property's condition.

2. Net Yield

This is where the actual calculation begins. We subtract operating expenses:

Net yield = (Annual rent − Annual expenses) ÷ Purchase price × 100

Typical expenses for a residential property:

ExpenseHow to Budget Condominium fee100% if not billed separately to the tenant Property tax0.25% of the declared value annually (collected by the Municipality) Maintenance and repairs~1% of the price per year (rule of thumb) Vacancy1 month per year minimum (~8.3%), even in high-demand areas Management (if you delegate)~1 month’s rent per year, or 8%–10% monthly Insurancecontents + liability (recommended)

A realistic net yield in the GMA, before taxes, falls between 4% and 6%. Below 4%, the cash flow doesn't compensate for the asset's illiquidity.

3. What Taxes Do Rentals Pay in Costa Rica?

This is the step that turns a "nice" yield into a real one. Three taxes:

• Property tax: 0.25% annually of the declared value. It's already in the table above.
• Rental income tax: the rent is taxed at 15% on 85% of what you collect (there's an automatic 15% deduction without the need for receipts) → an ~12.75% effective rate of the gross rent. It's declared monthly (TRIBU-CR system from October 2025). You can opt for the traditional regime and deduct actual expenses if it benefits you.
• Solidarity tax (luxury homes): if the value of the construction exceeds ₡145 million (2025 threshold), you pay a tiered rate (0.25% to 0.55%) on the total value of construction plus land, no later than January 15.

The rental income tax is the most surprising: it can reduce your net yield by a whole percentage point. Always include it.

4. Total ROI Over 10 Years

Yield measures cash flow. Total ROI includes expected appreciation:

Total ROI = Accumulated cash flow + Estimated appreciation − Exit costs

In areas with active development, historical appreciation is around 3%–5% annually, but there are cycles. Model three scenarios (pessimistic, base, optimistic) before deciding. To choose where, check the best areas for real estate investment.

5. The Effect of Leverage

If you finance, the yield on your money (cash-on-cash) changes. Let's say you put 30% down: your return is calculated on that down payment, not the total price. If the net rent covers the installment and there's excess, leverage amplifies your return; if it doesn't cover it, it amplifies the loss. The rule: the net rent (after taxes) should comfortably cover the installment before leveraging. Review credit conditions in our property buying guide.

Concrete Example

2-bedroom apartment in San Rafael de Escazú:

• Price: USD 175,000
• Rent: USD 1,200/month furnished (USD 14,400/year)
• Condominium fee: USD 1,440/year (borne by the owner)
• Estimated maintenance: USD 1,750/year
• Vacancy: 1 month/year (USD 1,200)

Gross yield: 14,400 ÷ 175,000 = 8.2%

Net yield (before taxes): (14,400 − 1,440 − 1,750 − 1,200) ÷ 175,000 = 5.7%

Rental income tax (~12.75% of 14,400 ≈ 1,836): net yield after taxes ≈ 4.7%.

Enough to enter — but not spectacular, and that 4.7% is the honest number. The whole difference is in negotiating the entry price down by 5%–8%. Debating between traditional or vacation rent? Compare them in Airbnb vs traditional rent.

The figures are for reference, and tax percentages are subject to changes and your particular situation. The final tax calculation must be done by an accountant or tax advisor. Your property may perform better or worse depending on condition, location, and market cycle. Sources: Directorate General of Taxation (TRIBU-CR), current tariff and regulations, and analysis by Costa Rican law firms and real estate portals (2025).