Q-11 Ahmad is working as a Freelance Interior Designer in Riyadh, Saudi Arabia since the last 7 year

Q-11
Ahmad is working as a Freelance Interior Designer in Riyadh, Saudi Arabia since the last 7 years. His earning is SR-150,000 for this year. He spent about SR-2,000 for his personal car expense per month. He also paid SR-5,000 for advertising his services in the local newspapers and magazine (for the whole year). He spent about SR- 3,000 on himself and to take care of his family bread and butter during the month. He took a house loan and needed to pay SR – 3,000 during the month.
Does he need to pay Zakat or Not? Calculate Nisab and Zakat, if he is eligible for it