The Muslim community has double obligations, namely tax and zakat obligations. Tax obligations are fulfilment as citizens, while zakat obligations are fulfilment as religious people. In terms of implementation, Muslims are faced with a choice of which one to prioritize, because everything is an obligation. Therefore, tax and zakat obligations should be integrated, so as not to confuse Muslims. This study aims to analyze the implementation of Maqasid al-Shariah in addressing zakat and tax integration to fulfil the zakat and tax compliance in Indonesia. Grounded in the five core objectives of Maqasid al-Shariah the protection of religion, life, wealth, honor, and intellect and shaped with system approach from Jasser Auda, this study explores how Islamic values can promote zakat-tax compliance and social welfare. This is an exploratory qualitative study involved 14 participants who were both taxpayers and muzakki (zakat payers), BAZNAS, and KPP Pratama supported by a literature review of 27 journal articles. Data were collected through in-depth interviews to examine participants’ understanding of taxation and zakat obligations. The results indicate that need to fulfil themes included maqasid al-shariah and systems approach of Jasser Auda. Among them are emphasizing institutional synergy by cooperation between KPP Pratama and BAZNAS, improved tax-zakat literacy, the use of zakat as taxable-income deduction, and the interpretation of compliance through maqasid al-shariah and Jasser Auda’s systems approach. The study focused on private employees and Muslim entrepreneurs, BAZNAS, and KPP Pratama selected by the researcher. All participants were affiliated with companies collaborating with BAZNAS and KPP Pratama. Research integrating tax-zakat compliance, and Maqasid al-Shariah remains limited. This study contributes to the literature by highlighting how religious values and legal compliance can jointly strengthen tax and zakat compliance with maqasid al-shariah approach in Indonesia.