Higher upkeep amount if income of former husband increases

A man has to increase the maintenance amount he is paying to his former wife if his earnings go up, Minister of Justice Mohammed bin Nekhaira Al Dhaheri told Khaleej Times.
A divorcee, or any other person being paid the maintenance amount by a person, as per a court ruling, is entitled to a higher amount if the man, for example, gets a salary hike, or adds to his property, the minister said, while talking to KT here.

The minister made clear that the divorcee had the right for a hike in her maintenance amount because it’s directly proportional to the former husband’s income. “If the former husband’s income goes up, the maintenance amount should also go up,” said the minister. Source