The lower limit was announced in July by a royal decree, having been put forward by minister of justice Vincent Van Quickenborne.
Previously, net deposits were limited to €500 per week, after an April 2020 decree.
The limit will continue to apply on a per-site basis, after attempts to introduce a “global” limit – to apply across all operators – fell through.
Players may request to have their limit raised, but only if they are not registered as defaulters with the Central Individual Credit Register of the National Bank.
“It is always possible for players to request a lower personal limit from the operators,” the Belgian Gaming Commission said. “To keep gambling fun, it is recommended to spend no more than 5% of income on gambling.”
Belgium is also hoping to implement a complete ban on all non-lottery gambling ads, a measure that has been the source of a great deal of controversy.