To Gain and to Give: Hilchot Tzedakah, Day 20

It was previously mentioned that ma’aser is given from one’s earnings. Any necessary expenses that one incurs as part of earning a living may be deducted from one’s profit margin. In some instances, it may not be clear cut whether something can be considered a business expense in regards to ma’aser. For example, in order to be able to work, a mother may employ a babysitter to watch her child. However, the babysitter also performs household duties which benefit the mother. In such a scenario and the like, a Rov should be consulted.

צדקה ומשפט פ"ה ס"ח