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Rental apartments: reality vs. spreadsheet

Pura Vida Reality editorial team · · 4 min readUpdated
Rental apartments: reality vs. spreadsheet

The yield of a holiday apartment should be calculated from documented revenue and all costs, not from a single optimistic occupancy figure. Distinguish between the developer's scenario, the track record of comparable apartments, and the actual performance of the unit being purchased. An attractive investment must make sense even during weaker demand and without relying on automatic capital growth.

First, define what yield means

Gross rental income is a distinct figure from net operating profit. Net operating income before financing and income tax is obtained by deducting operating expenses. Cash flow itself is then further altered by debt service, taxes, and one-off capital expenditure on furnishings and fittings.

A yield calculated solely against the purchase price is higher than the return on all actually invested capital. For comparison, use the same denominator: the purchase price plus ancillary acquisition costs, furnishings, and necessary repairs. Personal stays offer lifestyle value, but they simultaneously reduce the supply of nights available to paying guests.

What data to request from the property manager

Request monthly performance records of comparable units, the number of available and booked nights, achieved average daily rates, and itemised costs. Resort-wide average performance is insufficient for an apartment with a different view or fit-out. The data must be anonymised and shared legitimately.

Occupancy must have a clearly defined denominator. If the property manager omits maintenance downtimes or owner stays, they may report a high percentage alongside low annual revenues. Distinguish between public rack rates and the actual average net revenue collected after discounts and refunds.

Illustrative model and its assumptions

The following figures do not reflect any of our projects, nor do they represent an estimate of the local market. They constitute an educational baseline scenario assuming no capital growth, no debt, and before income tax. We assume total invested capital of 320 000 USD. Fixed costs of 8 000 USD per annum include an aggregate operating reserve; for a real unit, these must be itemised.

ItemBase modelWeaker demand
Booked nights per annum180120
Achieved rate per night150 USD130 USD
Gross revenue27 000 USD15 600 USD
Variable costs (assumed 25 %)6 750 USD3 900 USD
Fixed costs and reserve8 000 USD8 000 USD
Operating result before debt and tax12 250 USD3 700 USD
Return / capital of 320 000 USD3,83 %1,16 %

What the model shows and what it does not

A decline in both nights booked and achieved rates has a significantly greater impact on net profit than on revenue alone, because fixed costs remain unchanged. However, the model does not include an actual tax calculation, financing, or extraordinary repairs. Consequently, the figures cannot be interpreted as a guaranteed net return.

At a rate of 150 USD and assumed variable costs of 25 %, a contribution of 112,50 USD per night remains towards fixed costs. The 8 000 USD in fixed costs is covered by approximately 72 booked nights. This represents the model's operating break-even point before debt service and tax, not the payback period on the purchase price.

Management commission is not the entire operational budget

Review the contract to determine what the commission is calculated on: solely the accommodation rate, the total amount including cleaning fees, or even the guest's total payment including taxes. Also verify whether, alongside the commission, you are charged a fixed inspection fee, platform fees, marketing, or booking costs.

  • Condominium: regular service charges, reserve fund, and potential special assessments.
  • Electricity, water, internet, insurance, and routine maintenance.
  • Air conditioning, swimming pool, garden, and replacement of furnishings.
  • Taxes, accounting, banking, and currency conversion fees.
  • Vacant months, damages, refunds, and owner stays.

When to reject a forecast

Do not rely on an analysis that conflates revenue with profit, assumes year-round peak pricing without monthly data, or omits management and maintenance costs. Exercise equal caution with any ‘guarantee’ whose guarantor, duration, exclusions, and financial solvency are not contractually substantiated. An independent assessment should stress-test the assumptions first before calculating percentage returns.

Sources and materials

We separate official sources from professional and commercial commentary. Checking sources is not an individual legal review or confirmation of every current administrative procedure.

  1. Hacienda – non-traditional accommodation obligations ↗

    Official source · Costa Rica · Checked 18 October 2026

    Differences between tax regimes; older administrative guidance does not reflect current filing procedures.

  2. Quatro Legal – short-term rental regulations ↗

    Professional commentary · Costa Rica · Checked 18 October 2026

    Secondary practical explanation, not evidence of yield.

  3. Quatro Legal – rental operation restrictions ↗

    Professional commentary · Costa Rica · Checked 18 October 2026

    Due diligence checklist for the operation of a specific property.

General information only, not legal or tax advice. Consult a Costa Rican lawyer before deciding.

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