Room rental taxes for seniors hosting a young person in France

When is room rent tax-free in France?

Article 35 bis of the French General Tax Code exempts from income tax the rent earned by letting furnished rooms within one’s own main residence. Three cumulative conditions apply, and each can be checked by the tax office if questions are raised later.

The rooms must form part of the landlord’s main home; they must become the tenant’s main residence, or exceptionally the temporary home of a seasonal worker; and the rent must remain reasonable. A student living there all academic year normally qualifies.

What are the caps for 2025 and 2026?

To judge reasonableness, the French tax authorities publish two annual ceilings per square metre of living space, excluding service charges. They rise each year with the official rent reference index, and the 2026 figures appeared in an official bulletin dated 19 August 2026.

Working out the cap for your room

Multiply the room’s floor area by the relevant ceiling. A 15 square-metre room outside the Paris region therefore allows 2,385 euros a year in 2026, or 198.75 euros a month, while a 10 square-metre room in Île-de-France allows 2,150 euros annually.

Does going over the cap kill the exemption?

Not automatically, according to the legal publisher Weblex: rent above the threshold is not deemed excessive by default, and local circumstances can be weighed. Staying below it, however, avoids any argument with the tax office and keeps the position simple year after year.

An exemption with an expiry date

In its current form the rule covers lettings and sublettings concluded up to 31 December 2026. Unless parliament extends it again, agreements signed from 2027 onwards will no longer qualify. An earlier extension came through the 2024 finance law.

Not the same as bed-and-breakfast rules

A separate provision covers occasional room lets to people who do not settle there, typically bed-and-breakfast guests. That exemption is capped at 760 euros of annual takings and does not apply to a sharer who lives in the house for a full academic year.

What if one condition is not met?

The rent then becomes furnished-letting income, taxed as commercial profits and usually under the simplified micro-BIC regime. Its thresholds and flat-rate allowances were changed by Law no. 2024-1039; current amounts should be confirmed on the official French tax website.

What about local housing tax?

Since 2023, France’s taxe d’habitation no longer applies to main residences. A 2020 report for the national pension fund noted that a sharer’s tax address could exceptionally affect it; that risk has largely gone, except where the property is classed as a second home.

Letting the room correctly, step by step

A few habits keep the arrangement within the exemption and make it easy to prove years later. They take little time at signing and spare hosts from hunting for documents in a hurry if the tax office ever sends a query about the income.

1. Measure the living area of the room precisely.
2. Multiply it by the ceiling for the year and region.
3. Set the monthly contribution below that total divided by twelve.
4. Recharge utilities separately, based on actual bills.
5. Keep the contract and proof that the sharer lives there.
6. Check the new ceiling published each year.

Benefits: ask before signing

French law since 2018 treats a subtenant as a tenant for housing allowance purposes, so the young person may claim help with rent. Whether rent received affects means-tested benefits for older people, such as the APA or ASPA, should be confirmed with the relevant body.

What the 2020 pension fund study found

The report judged the ceilings too low in high-demand cities and too uniform across regions. It also recalled that a full tax exemption proposed by the Senate in the 2020 budget bill had been rejected by the National Assembly.

A Senate bill still pending

Tabled on 7 November 2023, a Senate bill sought to amend Article 35 bis in favour of tenants under 30 and to cap contributions by decree. Readers should check its progress before relying on any change it proposes.

Frequent tax pitfalls

Mistakes made by hosts usually come down to rough estimates of floor area or rent. They are easy to avoid if the calculation is done carefully at the start and revisited each autumn when the contract is renewed for the new academic year.

• Including utilities in the rent compared with the cap.
• Counting a shared living room as part of the let area.
• Using last year’s ceiling without checking the update.
• Hosting a sharer who keeps their main residence elsewhere.
• Forgetting that only agreements signed before 2027 qualify.

Keep solid evidence

If asked, the host should be able to show that the young person genuinely lived there: signed contract, letter from the matching organisation, post received at the address, university enrolment. Keep these papers for the whole period during which tax can be reassessed.

Separate rent from utilities

The cap is assessed excluding charges. Splitting the housing contribution from a share of water, electricity and heating, calculated from real bills, keeps the rent under the threshold while recovering the extra costs that another occupant inevitably brings.

Hosts’ tax questions

Older householders ask matching organisations the same few things before setting the contribution. They concern free accommodation, which floor area to count, the sharer’s residence and what will happen to the rule after 31 December 2026.

Is rent-free hosting a problem?

No. With no rent there is no income to tax. Some support-based arrangements involve only sharing actual utility costs, which is a reimbursement of expenses. Keeping a simple yearly record of bills is enough to document it.

Which floor area should be used?

Published examples use the living area of the room let. Where the sharer also has a private shower room, including it is defensible. For shared spaces, asking the local tax office before adding them to the calculation is the safer course.

Must the sharer change address?

The room must become their usual home. A student who keeps a parental address for paperwork but lives with the host all year still resides there; actual living arrangements weigh more than a correspondence address.

What will change in 2027?

Without an extension, agreements concluded from 1 January 2027 would lose the exemption. The 2027 finance bill, debated this autumn, is worth following before signing a new agreement for the next academic year. Hosts outside France should check their own national rules.