coeficiente de atualização de rendas
Published 4 November 2026, 00:38
coeficiente de atualização anual de renda — annual rent increase coefficient
The multiplier by which the landlord may raise the rent once a year, unless the contract says otherwise. It is calculated from inflation, excluding housing, over the 12 months to 31 August and announced in a separate notice in the Diário da República by 30 October. The tenant must be notified in writing at least 30 days in advance, with both the coefficient and the new rent stated.
Where you come across it. a letter about a rent increase; a dispute over whether an increase is lawful.
Increases that were not applied are not lost straight away: the coefficients can be applied later, but no later than three years after the increase first became possible. A second contract "for the furniture" is not a way round the coefficient; it is undeclared income.
Official website: diariodarepublica.pt/dr/legislacao-consolidada/lei/2006-34578375