Furnished Rental in France: Micro-BIC vs Real Regime — What Owners Get Wrong

Micro-BIC is a simplified regime applied to furnished rental income in France. It replaces detailed expense tracking with a flat allowance deducted from gross rental receipts. The remaining amount is then treated as the taxable income from the activity.

It is available below certain revenue thresholds, and within eligibility limits that vary depending on the type of furnished rental activity. Above those limits, or by election, the activity moves to the real regime.

The appeal is straightforward:

• Administrative simplicity — no itemised expense accounting
• Automatic deduction via the flat allowance
• Lower ongoing compliance cost
• Easy to operate for small or occasional activity

For many owners with modest rental activity, Micro-BIC genuinely is the appropriate regime. The misunderstandings arise when it is chosen by default, without comparison, and never revisited.

The Régime Réel is a full accounting regime. Instead of a flat allowance, it calculates taxable income based on the actual expenses of the activity. Depending on circumstances, depreciation of the property and of furniture may also be taken into account.

This regime typically involves:

• Proper bookkeeping for the rental activity
• Detailed tracking of deductible expenses
• Potential depreciation calculations over time
• More structured reporting obligations

It is clearly more complex than Micro-BIC. But for many owners — particularly those with real financing, renovation costs, or significant running expenses — it is the regime that reflects the true economic result of the activity rather than a simplified approximation.

The most common pattern is not a legal error. It is a structural one — treating the regime as a one-off choice rather than a decision that should be reviewed as the activity changes.

• Assuming Micro-BIC is always simpler and better. It is simpler administratively. That does not mean it produces the lower taxable income.
• Staying in Micro-BIC despite high real costs — loan interest, service charges, management fees, maintenance — that the flat allowance cannot reflect.
• Not reassessing the regime as rental income grows, even as the activity approaches or crosses eligibility limits.
• Under-estimating the impact of depreciation under the real regime, which can significantly change the multi-year tax result.
• Treating the regime as a one-time decision instead of a dynamic one that should follow the economics of the property.
• Ignoring long-term tax impact, particularly in years where expenses are unusually high or unusually low.

A regime choice is not static. Several changes can shift the balance between Micro-BIC and the real regime:

• Rental income increases, approaching or crossing the Micro-BIC eligibility thresholds
• The property changes — renovation, refinancing, or furniture replacement drives real expenses higher
• Ownership expands to multiple properties, changing the overall profile of the activity
• The owner’s residency changes, which affects how French rental income interacts with other tax systems
• The activity starts producing losses that would be more usefully captured under the real regime

Each of these can make a previously sensible regime choice the wrong one for the next year. Obligations, and the decisions around them, evolve over time.

French rental income is taxable in France under French rules — that part is clear. What is often less clear is how that same income interacts with the tax system in the country where the owner is resident.

If you are resident in the UK or elsewhere and rent furnished property in France, several things usually apply at once:

• The rental activity is taxed in France under Micro-BIC or the real regime
• The income may also be reportable in your country of residence
• A double taxation relief mechanism usually applies, but it does not eliminate the filing obligation on the other side
• Reporting obligations continue in both places, even where no additional tax ends up being due

Understanding the French regime is only half the picture. The other half is how it sits alongside your home-country reporting.

• Late switches between regimes, after a year in which a different regime would have been materially better
• Lack of supporting documentation for expenses, which limits what can be claimed under the real regime when the owner eventually moves to it
• Misunderstanding eligibility limits for Micro-BIC, particularly where activity mix or property type affects the applicable ceiling
• Importing assumptions from the UK or other systems — treating furnished French rental like a UK buy-to-let, which it is not
• Not reconciling the French regime choice with what is declared in the country of residence

The regime question is best treated as a recurring review, not a one-time decision. A reasonable way to approach it:

• Identify the rental type — furnished or unfurnished, occasional or continuous, residential or short-term
• Understand which regime currently applies and on what basis
• Review the position periodically, particularly when revenue, costs, or residency change
• Align the French treatment with your overall tax position in the country where you are resident
• Keep the documentation that would support a future switch to the real regime, even if you are currently under Micro-BIC

The goal is not to “optimise” each year. It is to avoid drifting into the wrong regime and staying there past the point where the numbers stopped making sense.