
A real estate investment is measured by its net yield after taxes, charges, and rental vacancy. Not by the gross yield displayed in listings. This distinction determines the success or failure of a rental project, and most disappointments stem from an overly optimistic initial calculation. Here are the technical points to master for investing in 2024 with a minimum margin of error.
EPC and resale value: the total cost of holding a rental property
The energy performance diagnosis no longer only concerns the right to rent. Since 2024, properties classified as F or G are harder to sell and suffer a depreciation at resale, according to analyses published by the Notaires du Grand Paris.
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An investor who buys an energy-intensive property without budgeting for energy renovation takes a double risk: a gradual ban on renting and a loss of property value. Thinking in terms of total holding cost (purchase price + renovation work + charges + taxation) provides a more reliable picture than just the gross yield.
Specialized platforms like immorise.fr allow for cross-referencing these parameters to estimate the actual profitability of a project before committing. Specifically, a property classified as D or E with moderate insulation work can offer a better net yield over ten years than a property classified as C purchased at a higher price in the same neighborhood.
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Taxation of LMNP after the 2024 finance law: what has changed for furnished rentals
Law No. 2023-1322 of December 29, 2023 (finance law for 2024) has tightened the tax framework applicable to short-term tourist rentals. The flat-rate deduction that these rentals benefited from has been reduced, which diminishes the comparative advantage over traditional unfurnished rentals.
This legislative change encourages careful comparison of three regimes:
- Unfurnished rental under the micro-property or real regime, suitable for properties without heavy work and with stable rents.
- The classic LMNP status (one-year furnished lease), which retains the accounting depreciation of the property and furniture, a still powerful tax lever to reduce taxation on rents.
- Furnished tourist rentals (like Airbnb), now less advantageous tax-wise and subject to increasingly strict municipal regulations in tight areas.
The classic LMNP remains the most balanced regime for an investor aiming for a regular net yield without heavy daily management. Switching to the real regime allows for the deduction of actual charges and depreciation of the property, which can bring taxation on rental income to a very low level for several years.
Rental pressure in medium-sized cities: where demand is shifting
The pressure on the rental market is no longer limited to Paris, Lyon, or Bordeaux. The 2024 barometers from the CLAMEUR Observatory show that rental pressure has shifted to medium-sized cities near employment hubs.
This shift is explained by the development of partial remote work, rising prices in metropolitan areas, and improved rail services. Intermediate-sized urban areas now display very low rental vacancy rates, with purchase prices significantly lower than those in large cities.
For an investor, this means that a property located in a dynamic medium-sized city can combine an accessible acquisition price, a reasonable rent relative to the purchase price, and a reduced risk of vacancy. The net yield often exceeds that of a Parisian apartment, provided the solidity of the local employment pool and the demographic dynamics of the municipality are verified.
Concrete criteria for evaluating a medium-sized city
The number of jobs created over the last three years, the commercial vacancy rate in the city center, and the presence of a university or hospital hub are more reliable indicators than just the price per square meter. A tight rental market protects against vacancy, which remains the primary destroyer of yield.

Net yield and mortgage: simulate before signing
The mortgage rate directly conditions the profitability of a rental investment. With rates having significantly increased since 2022, the gap between gross yield and net yield after mortgage repayment has widened.
A realistic calculation includes at least these items:
- The monthly mortgage payments (principal + interest + borrower insurance), compared to the net rent received after charges and taxation.
- The property tax, which varies greatly from one municipality to another and has increased in many cities in recent years.
- A realistic rental vacancy rate, generally estimated at one month per year for a properly located and maintained property.
- The cost of property management if you delegate (around a few percentage points of the annual rent depending on the agencies).
A profitable project can support a vacancy rate of one month per year without going into negative cash flow. If your simulation shows a fragile balance assuming 100% occupancy, the project relies on too optimistic a scenario.
The leverage effect of credit remains an asset
Even with higher rates, borrowing to invest allows for the accumulation of real estate assets with a limited contribution. The tenant pays off part of the mortgage, and the tax depreciation in LMNP can offset part of the additional cost related to rising rates. The decision to be made concerns the loan duration: extending the duration reduces monthly payments but increases the total cost of the loan.
The rental real estate market in 2024 rewards investors who calculate tightly rather than those who seek a love-at-first-sight deal. A property with a good energy rating, in a medium-sized city under rental pressure, financed with a mortgage whose monthly payments leave a margin after charges, remains the most resilient investment profile in the current context.