A tax exemption order can be increased at any time, but it can only be reduced to an amount that has already been used. A full deletion or a reduction below the used amount is not possible within the current year.
Also, within a year, it’s not possible to switch from a joint assessment (for example, for married couples) to a single assessment. If you want to modify the exemption order, please make sure your adjustments fit the mentioned restrictions. If you have any more questions, our customer service is happy to help.