The salary of an interior designer can vary significantly depending on factors such as experience, location, education, the size and reputation of the firm they work for, and whether they are self-employed or employed by a design firm. Here are some general guidelines:

Entry-Level Interior Designers: Entry-level designers or those with limited experience may earn an annual salary ranging from $35,000 to $55,000, depending on the factors mentioned.
Mid-Level Interior Designers: With a few years of experience, mid-level designers can expect salaries in the range of $50,000 to $80,000 per year.
Experienced/Senior Interior Designers: Senior designers or those with extensive experience and a strong portfolio may earn salaries exceeding $80,000, and in some cases, well into the six-figure range.
Location: Salaries can vary significantly based on the region or country. Designers working in metropolitan areas or in regions with a higher cost of living generally command higher salaries.
Specialization and Expertise: Interior designers specializing in high-end residential or commercial projects, luxury design, or niche areas such as healthcare or hospitality may command higher salaries due to the specialized knowledge required.
Education: A designer with advanced degrees or certifications may earn a higher salary. Additionally, those with a strong portfolio and a proven track record of successful projects may negotiate higher compensation.
Freelance/Entrepreneurial Designers: Self-employed designers or those running their own design firms may have varying income levels based on the success of their business, client base, and project scope.

It’s important to note that these figures are general estimates and the actual salary can vary. Additionally, the interior design industry is dynamic, and trends in compensation may change over time. It’s recommended to research current salary data specific to your location and level of experience for the most accurate information.