Working married women in Indonesia have fallen victim to the government’s enforcement of tax return form (SPT) scrutiny due to different interpretations of tax laws. There are contradictory interpretations of Article 8 of the Income Tax (PPh) Law and Article 2 of the General Taxation System (KUP) Law. Article 8 of the PPh Law stipulates that the income of a married woman is considered part of her husband’s earnings if she works for a separate employer. The single-income consideration is not applicable if they decide to split their assets and incomes under a prenuptial agreement, or if the wife wishes to exercise her own tax rights and obligations. The advice by tax officers that working women, who have tax numbers and file separate tax return forms from their husbands, provide a prenuptial agreement on assets and income separation is not an easy thing to do. Most Indonesian couples are not familiar with prenuptial agreements. They are uncomfortable about having such agreements, which set the terms for the division of wealth in the event that they divorce. Usually, transnational couples have prenuptial agreements as the couples have better awareness of the issue.