Rents, in big cities only 35% choose '4+4'. Growth in agreed and transitional contracts
by Dario Aquaro and Cristiano Dell'Oste
Fewer and fewer houses are rented out under ordinary long contracts, the classic '4+4'. In 2025, this formula was chosen for only 39.5 per cent of leases registered with the Inland Revenue. Ten years ago the figure was 53.3 per cent. And last year it stopped at 35.2% in the eight largest cities (Rome, Milan, Turin, Genoa, Bologna, Florence, Naples and Palermo) .
The snapshot taken by the Omi-agencia delle Entrate's Real Estate Report 2026 provides an insight into where the market is going, at a time when there is much discussion about short term rentals and the government is launching the housing plan.
As free contracts decreased, the weight of other formulas increased. Agreed rents (which have a rent below market levels and a minimum duration of three years) increased from 20.5 per cent to 24.8 per cent. But, even more, the rents that the report classifies as "transitory" have grown: a category that includes student contracts (again with a fixed rent) and true transitory relationships, up to 18 months, stipulated only for the needs envisaged by legislation or by local agreements between building owners and tenants' unions.
Behind the growth in the number of agreements there are several causes: tax concessions (first and foremost the coupon at 10% instead of 21%, and then the Imu benefits); the upward revision of some local agreements (as in the case of Milan); the difficulty for a growing number of tenants to sustain market rents, which leads landlords to accept a lowered amount. Then there is the greater diffusion of transitional needs linked to new work and study patterns, which meets the willingness of some landlords not to commit themselves for long.
While the mix of formulas has changed, the total number of new contracts registered each year for whole dwellings has remained stable over the last decade at around 1.3 million. It cannot be ruled out, however, that there has been some 'decanting' with houses intended for short-term rental, which are not included in this survey (contracts of up to 30 days are not registered): the latest trend seems to be a shift from short-term to transient.



