Are you a designer AND decorator?
The cost of hiring an interior designer varies greatly. Most charge per hour, with the current market rate between $50 and $200 per hour. You would pay this in addition to the cost of furniture, accessories, artwork, etc. Some interior designers charge their clients by "marking up" the decor they choose. For example, you may agree to pay a 15 percent markup fee to your interior designer on all goods purchased.
Meet with the client to discuss personal style, likes and dislikes, budget constraints and time constraints.
Interior designers: don't be elitist. You need to know when to open your arms to architects and other professionals because you can't control every part of a project. Also, it's your duty to educate! If someone calls you a decorator, or pays disrespect to the field of design by not recognizing its vast sea of qualities, correct them.