Nobody thinks about mortgage insurance when tallying up what smoking costs. And yet a single checkbox on a health questionnaire, smoker or non-smoker, can weigh more heavily on a home loan than years of packs bought at the corner shop.
One administrative checkbox that changes everything on price
According to several specialized comparison sites, including Reassurez-moi and Meilleurtaux, being classified as a smoker on borrower insurance in France triggers a surcharge of 30% to 100% compared to an equivalent non-smoker profile. In practice, on a premium a non-smoker pays €20 a month for, a smoker will pay somewhere between €26 (+30%) and €40 (+100%, i.e. double) for the exact same coverage. The definition is broad: it covers regular cigarettes, but also cigars, pipes, occasional shisha, and heated products like IQOS, as soon as any use occurred within the last 12 to 24 months depending on the insurer.
Why one checkbox weighs so heavily on the price
Insurers price risk using statistical mortality and morbidity tables. Smoking ranks among the heaviest factors on those tables, on par with some serious medical histories, because it significantly raises the risk of cardiovascular disease, respiratory illness, and certain cancers over the life of the contract. Since a mortgage typically runs 15 to 25 years, the insurer prices in that cumulative risk across the whole period, which is why the price gap isn't just a few symbolic euros.
The 24-month rule, and why a single cigarette resets it to zero
The threshold is nearly identical across insurers: 24 consecutive months with zero tobacco use are required to be declared a non-smoker. That period isn't arbitrary, it's roughly when an ex-smoker's cardiovascular risk starts statistically converging toward that of a non-smoker. The key word is "consecutive": a single cigarette smoked during that window, even just once, resets the counter to zero.
To verify this, insurers can request a medical certificate or a cotinine test, a nicotine marker detectable in saliva or urine for roughly 16 days after the last use. That test doesn't replace honesty about the full 24 months, it simply confirms there's been no recent use at the time of the declaration.
Death and disability coverage: the same logic, a bit less visible
"Assurance-vie", as most French people use it, is mainly a savings product (fund-based or unit-linked). Its price generally doesn't depend on smoker status: it's an investment, not a bet on lifespan. But as soon as a contract includes an actual death benefit or disability coverage, exactly the case with borrower insurance or a standalone term life policy, the same risk grid applies: it comes with the same 30% to 100% surcharge range as the borrower insurance covered above.
How to lower your premium once you've hit 24 months
Switching back to non-smoker status is never automatic: it's up to the policyholder to actively request it, usually with a letter and supporting proof, once the 24-month threshold is crossed. It's a step many people who quit smoking never even know exists, even after they've already calculated exactly what tobacco cost them day to day: the premium reduction adds on top, often with no extra effort, of every other saving already made.
On a standard mortgage, insurance is far from a negligible share of the total loan cost, and a 30% to 100% surcharge on that one line item, left in place for fifteen or twenty years simply because nobody thought to revise it, represents a very real loss. One more concrete reason for anyone considering putting the money saved on tobacco to work, rather than letting it leak out through an insurance line that never got updated.
