In the US it is applied to a rent that is excessively high. In the UK it applies to an amount that is not less than 2/3s of the rent a premises would attract during the time period of one year.
RACK RENT
In the US it is applied to a rent that is excessively high. In the UK it applies to an amount that is not less than 2/3s of the rent a premises would attract during the time period of one year.