From Monday 23 May, tribunals will not consider evidence submitted after an application has been made, in appeals relating to applications made in the UK under the points-based system.
UK Border Agency statistics show that around two-thirds of appeals allowed by immigration judges are due to late evidence being submitted.
The rules change is designed to end unnecessary appeals and help make sure that applications are right first time. It will apply to all applications made within the UK through the points-based system.