Buying an apartment to rent it out is often the first step. The real difficulty arises when it comes time to declare the rents received. Between choosing the tax regime, tax reduction schemes, and rules that change from year to year, real estate taxation directly determines the net profitability of a rental investment.
Micro regime or real regime: the choice that weighs most on your rental income
Before looking into tax reduction schemes, a basic question must be settled. How will you declare your rents? Two regimes coexist, and their impact on tax is very different.
The micro regime (micro-property for unfurnished rentals, micro-BIC for furnished rentals) applies a flat-rate deduction on the rents received. It’s simple, quick, but rarely suitable when you have high actual expenses.
The real regime allows you to deduct the actual expenses incurred: loan interest, maintenance work, insurance, management fees. In furnished rentals (LMNP), it also allows for the depreciation of the property and furniture, which can reduce taxable income to zero for several years. To delve deeper into the tax mechanisms related to real estate, the resources available on fiscal.immo detail these trade-offs between regimes.
The real regime is almost always more advantageous once expenses exceed the flat-rate deduction. Did you buy on credit, did you do renovations, are you paying a manager? The real regime deserves a precise calculation.
LMNP and reintegration of depreciations: what changes from 2025
The status of non-professional furnished renter (LMNP) has long been considered the most favorable regime for rental investment. The idea was simple: depreciate the property under the real regime to reduce tax on rents, then sell while benefiting from the capital gains regime for individuals, without these depreciations being taken into account.
This mechanism has changed. The finance law for 2025 provides that depreciations applied in LMNP are now reintegrated into the calculation of capital gains upon resale, for transfers made from February 15, 2025. This rule applies even to properties already depreciated before this date.
In practical terms, the tax advantage obtained during the rental phase is partially “caught up” at the time of sale. An investor who has deducted several tens of thousands of euros in depreciations will see their taxable capital gain increase accordingly.
Why is this point crucial? Because any LMNP strategy must now incorporate a trade-off between tax savings on rents and taxation upon resale. An investment intended to be held for a very long time remains favorable under the real regime, thanks to deductions for holding duration that eventually erase the capital gain. In contrast, a buy-sell over a few years loses much of its tax interest.
Property deficit and renovation work: an underutilized lever
The property deficit concerns owners who rent out an unfurnished property under the real regime. When deductible expenses exceed the rents received, the difference constitutes a deficit that can be offset against global income, up to a limit of 10,700 euros per year. The excess can be carried forward to the property income of the next ten years.
This mechanism makes perfect sense when you buy an old property requiring renovations. Maintenance, repair, and improvement expenses are deductible. A well-planned renovation program can eliminate property tax for several years.
Some conditions must be met for the property deficit to work:
- The property must be rented unfurnished, with a standard residential lease, and maintaining the rental for at least three years after the deficit is claimed is mandatory
- Only maintenance, repair, and improvement work is deductible – construction, reconstruction, or expansion work is not
- Loan interest is only deductible from property income, not from global income – thus, they do not create an offsettable property deficit
Property deficit or LMNP: how to decide
The choice between unfurnished rental with property deficit and furnished rental in LMNP depends on the profile of the property and the holding horizon. An old apartment with significant renovation needs naturally lends itself to the property deficit. A property already in good condition, furnished, and rented to mobile tenants, is more suited to LMNP.
A common mistake is to choose the LMNP status by default, without comparing the actual impact of the two options over the total holding period. Since the 2025 reform, this comparison is even more necessary.
Property tax and recurring charges: the blind spot of rental profitability
Guides on real estate taxation often focus on income tax reduction schemes. They overlook a charge that eats into profitability every year: property tax.
Municipalities have the option to vote for rate increases independently of the national revaluation of cadastral bases. Some major cities have already implemented significant increases in recent years, and further increases remain possible in the medium term.
Before investing, check the amount of the property tax for the targeted property and its recent evolution. A gross yield of a few points can quickly diminish if the property tax already represents several weeks of rent.
- Ask the seller for the latest property tax notices to observe the evolution over three to five years
- Inquire with the town hall about plans for revising municipal rates
- Incorporate the property tax into your net profitability calculation, not just the gross yield displayed in listings
The profitability of a rental investment is calculated after tax and after recurring charges. A property advertised with an attractive gross yield in a municipality with high local taxation may prove to be less profitable than a property with a modest gross yield in a fiscally stable city.
Every real estate investment relies on local parameters (property tax, rental demand, condition of the property) as much as on the national tax framework. Schemes change, regimes evolve, and the 2025 LMNP reform is the most recent proof of this. Making the right calculations before buying remains the only lever that does not depend on any law.
