Islam treats how money is earned and spent as a matter of worship, not something separate from it. This lesson focuses on what a new Muslim needs to know in practice, starting out. The deeper principles are covered in the lessons on trade and contracts, and on debt, business and employment.

First, earning. The main things to avoid are interest, called riba, and income from things Islam clearly prohibits, such as alcohol, gambling, and similarly clear-cut cases. For most jobs, and especially for standard employment, this is not a difficult line to find. Where it is genuinely unclear, such as a specific investment product, a business structure, or a particular industry, that is exactly the kind of question to ask a knowledgeable Muslim or a qualified scholar about, rather than guessing either too strictly or too loosely.

Second, spending. Islam commands moderation rather than either extreme. The Qur'an describes sincere believers in Surah Al-Furqan, chapter twenty-five, verse sixty-seven, as those who, “when they spend, do so not excessively or sparingly but are ever, between that, justly moderate”. And it warns strongly against wastefulness, in Surah Al-Isra, chapter seventeen, verse twenty-seven: “Indeed, the wasteful are brothers of the devils”. Neither extreme reflects the balance Islam asks for: not reckless spending, and not a miserliness that denies yourself and your dependants reasonable needs.

For a new Muslim, a reasonable starting point is simple. Avoid interest-bearing debt where possible. Give what you can afford in voluntary charity, sadaqah, even in small amounts. And pay attention to needless spending, rather than trying to overhaul every financial habit at once.

This, together with zakat once you are obliged to pay it, is brought together as a connected whole in the next lesson. Where scholars and Islamic finance bodies differ on specific modern products, the fuller lessons explain those differences.