Is Zakat obligatory on money borrowed for a project that has been in possession for a full year (hawl), and how is the value of Zakat estimated for a service company that does not own physical goods?

Zakat is obligatory on the profit of a company that provides services, if the profit reaches the nisab (minimum taxable amount) by itself or when combined with other money, and a hawl (one lunar year) has passed over it. The debt is then deducted. If a nisab remains after deducting the debt, Zakat becomes obligatory.