Housing Benefit Calculator 2026

Complete Guide to French Housing Benefits (APL, ALS, ALF)

France provides one of the most generous housing assistance programs in the world, helping millions of tenants, students, and low-income households afford decent accommodation. The system is managed by the CAF (Caisse d'Allocations Familiales) and comprises three main types of housing benefit, each targeting specific situations.

Understanding APL, ALS, and ALF

The three types of housing benefit in France are mutually exclusive -- you can only receive one at a time, and the applicable type is determined automatically based on your housing and family situation:

• APL (Aide Personnalisee au Logement) -- The most common form, applicable when you rent a property that has been approved under an agreement (convention) with the French state. Most social housing and many private rentals in large cities qualify. APL is paid directly to the landlord, who deducts it from your rent.
• ALS (Allocation de Logement Sociale) -- Applies to tenants whose housing is not conventioned and who do not qualify for ALF. This is the default benefit for most students renting private accommodation and for single individuals without dependents.
• ALF (Allocation de Logement Familiale) -- Reserved for tenants with family dependents (children, elderly relatives) or couples married for less than five years without children. It applies when the housing is not conventioned.

How Housing Benefits Are Calculated

The calculation formula for all three types is complex and considers multiple variables. The core factors are:

• Your household income -- Based on your "revenus fiscaux de reference" (RFR) from two years prior, updated quarterly. Lower income means higher benefits.
• Your rent amount -- Capped at a ceiling that varies by geographic zone and household size. Rent exceeding this ceiling is not taken into account.
• Geographic zone -- France is divided into three zones for housing benefit purposes. Zone 1 covers the Paris region (Ile-de-France), Zone 2 covers cities with over 100,000 inhabitants and certain overseas territories, and Zone 3 covers the rest of France. Rent ceilings are highest in Zone 1 and lowest in Zone 3.
• Household composition -- The number of people in your household affects both the rent ceiling and the benefit amount. Each additional dependent increases the ceiling and the base allocation.

A participation amount (participation personnelle) is always deducted, representing the minimum housing expense the household is expected to bear. This amount increases with income.

The Zone System Explained

The geographic zone system reflects the significant variation in rental costs across France:

• Zone 1 -- Ile-de-France (Paris and surrounding departments). Rent ceilings are highest here, reflecting the extreme cost of housing in the capital region. For a single person in 2026, the APL rent ceiling is approximately 319 euros per month.
• Zone 2 -- Major cities and urban areas outside Paris, including Lyon, Marseille, Toulouse, Nice, Bordeaux, and their agglomerations. Rent ceilings are moderately high, around 278 euros for a single person.
• Zone 3 -- All other areas of France, primarily rural and small-town locations. The lowest rent ceilings apply, at approximately 260 euros for a single person, but actual rents in these areas are also significantly lower.

Recent Reforms and Changes

The housing benefit system has undergone significant reform in recent years. The most impactful change was the shift to real-time income calculation in January 2021. Previously, benefits were based on income from two years prior. Now, CAF uses income data from the previous 12 months, updated quarterly. This means your benefits adjust more quickly to changes in your financial situation -- a pay raise will reduce your benefits sooner, but a job loss will increase them faster.

Additionally, a minimum benefit threshold of 10 euros per month was introduced. If your calculated benefit falls below this amount, no payment is made. The government has also implemented a gradual reduction formula (degressivite) for higher-income households, meaning that benefits phase out progressively rather than dropping abruptly.

Practical Tips for International Residents

If you are an expat or international student renting in France, housing benefits can significantly reduce your costs. Here is what you need to know:

• Apply online at caf.fr as soon as you sign your lease. Benefits are not retroactive, so delays in applying mean lost money.
• You will need a French bank account (RIB), your lease agreement (bail), and a valid residence permit if applicable.
• If you have no prior French income (e.g., you just arrived), your initial benefit will be calculated based on declared resources of zero, which typically results in the maximum benefit amount. This will be adjusted once you start earning income in France.
• Students on international exchange programs should note that housing shared with a French tax-resident parent may disqualify them from benefits.
• Colocation (shared housing) is eligible -- each co-tenant can apply individually based on their share of the rent, provided each person has their own name on the lease or a colocation-specific lease (bail de colocation).