How to Become a Licensed Interior Designer in 2026: Complete State-by-State Guide
How to Become a Licensed Interior Designer: 2026 Complete Guide
Updated March 2026 · 18 min read
Interior designers plan and design interior spaces that are functional, safe, and aesthetically pleasing. Unlike interior decorators, who focus primarily on aesthetics, interior designers may work with building codes, ADA accessibility requirements, and construction documents -- and in some states, they can stamp drawings and pull permits. Regulation of interior designers varies enormously across the United States: some states have strict practice acts, others protect only the title, and many have no regulation at all.
This guide walks you through every step of the process, from earning a CIDA-accredited degree to passing the NCIDQ exam, understanding state regulation types, and maintaining your credentials through continuing education. We have also compiled verified data for all 51 states we track so you can compare requirements side by side.
51
States Tracked
27
Require License/Registration
27
Require NCIDQ Exam
14.3 hrs
Avg. CE Hours Required
$204
Avg. License Fee
Quick Overview: Steps to Become an Interior Designer
- 1.Earn a bachelor's degree from a CIDA-accredited (Council for Interior Design Accreditation) interior design program.
- 2.Gain professional work experience -- typically 2 years of supervised interior design practice to qualify for the NCIDQ exam.
- 3.Pass the NCIDQ exam -- the National Council for Interior Design Qualification examination, the nationally recognized credential for interior designers.
- 4.Obtain state registration or licensure where required (27 of 51 states we track require some form of registration or licensure).
- 5.Maintain your credentials through continuing education every renewal cycle.
Total timeline: approximately 6--7 years from high school graduation (4-year degree plus 2+ years of work experience).
What Does an Interior Designer Do?
Interior designers plan and design interior spaces to be functional, safe, and aesthetically appealing. They work on both commercial and residential projects, transforming offices, hospitals, retail stores, restaurants, and homes into spaces that meet their occupants' needs. The work involves far more than selecting colors and furniture -- it encompasses space planning, building code compliance, ADA accessibility, material and finish selection, lighting design, and coordination with architects, engineers, and contractors.
Key areas of interior design practice include:
- Space planning: Analyzing how people use spaces and creating floor plans that optimize circulation, function, and safety.
- Building code compliance: Ensuring designs meet local, state, and federal building codes, fire safety regulations, and occupancy requirements.
- ADA accessibility: Designing spaces that comply with the Americans with Disabilities Act and other accessibility standards.
- Material and finish selection: Specifying materials, textiles, finishes, and furnishings that meet durability, sustainability, and aesthetic requirements.
- Construction documentation: Producing drawings, specifications, and schedules that communicate the design to contractors and builders. In some states, licensed interior designers may stamp drawings and pull permits.
- Project coordination: Collaborating with architects, engineers, contractors, and other design professionals throughout the project lifecycle.
Interior Designer vs. Interior Decorator
A common source of confusion is the difference between interior designers and interior decorators. Interior decorators focus primarily on aesthetics -- selecting colors, furnishings, and accessories to enhance the appearance of a space. Interior designers, by contrast, receive formal education in building systems, codes, safety, and structural considerations. In states with practice acts, only licensed interior designers may perform certain regulated activities such as stamping construction documents and pulling building permits. Interior decorating is not regulated in any state.
According to the U.S. Bureau of Labor Statistics, the median annual wage for interior designers is approximately $61,000--$62,000, with higher salaries in metropolitan areas, specialized commercial design firms, and senior or principal roles. Experienced designers in high-demand markets can earn well above the median.
Step 1: Education Requirements
The standard educational path for interior designers is a bachelor's degree from a program accredited by the Council for Interior Design Accreditation (CIDA), formerly known as FIDER (Foundation for Interior Design Education Research). CIDA accreditation ensures the program meets rigorous standards for preparing students to practice interior design competently and ethically.
CIDA-accredited programs typically include coursework in:
- Design theory, history, and criticism
- Computer-aided design (CAD) and design software
- Building systems, construction methods, and materials
- Building codes and regulations
- Space planning and programming
- Lighting design
- Sustainability and environmental design
- Color theory and textiles
- Professional practice and business ethics
While a bachelor's degree is most common, some designers pursue a master's degree in interior design or a related field such as architecture or environmental design. A master's degree can strengthen career prospects, particularly for those interested in teaching, research, or highly specialized practice areas.
Important: Verify CIDA Accreditation
Not every interior design degree program holds CIDA accreditation. Graduating from a CIDA-accredited program is a requirement to sit for the NCIDQ exam and is required or preferred for licensure in most regulated states. Before enrolling, confirm the program's accreditation status on the CIDA website.
Step 2: The NCIDQ Exam
The NCIDQ (National Council for Interior Design Qualification) exam is the nationally recognized certification for interior designers, administered by CIDQ (the Council for Interior Design Qualification). Passing the NCIDQ is required for licensure or registration in most states that regulate interior design, and of the 51 states we track, 27 require NCIDQ certification.
The NCIDQ exam consists of three sections:
- IDFX (Interior Design Fundamentals Exam): Tests knowledge of fundamental interior design principles, building systems, codes, and construction standards. Multiple-choice format.
- IDPX (Interior Design Professional Exam): Tests professional practice knowledge including project coordination, communication, and professional ethics. Multiple-choice format.
- PRAC (Practicum): A scenario-based exam that tests the ability to apply design knowledge to realistic project situations, including space planning, code compliance, and design development.
To qualify for the NCIDQ exam, candidates must meet education and experience requirements. The most common path is a bachelor's degree from a CIDA-accredited program plus a minimum of 2 years (3,520 hours) of supervised work experience. Alternative pathways exist for candidates with different combinations of education and experience -- consult CIDQ's eligibility requirements for full details.
The three exam sections can be taken separately, and candidates do not need to pass them in order. Most candidates complete all three sections within 1--2 years. Thorough preparation using CIDQ's published study materials and practice exams is recommended.
Interior Design Regulation Types
Interior design regulation varies enormously across the United States. Many states have no regulation at all, while others have varying levels of regulatory oversight. Understanding the three main types of regulation is essential for interior designers navigating state requirements:
Practice Act
The most restrictive form of regulation. Practice acts restrict certain interior design activities to licensed professionals only. Unlicensed individuals cannot legally perform regulated design work, which may include preparing construction documents, stamping drawings, or filing for permits.
No states with practice acts found in current data.
Title Act
Title acts protect the use of specific professional titles (such as "Registered Interior Designer" or "Certified Interior Designer") but do not restrict the practice of interior design itself. Anyone can perform interior design work, but only individuals who meet the state's requirements may use the protected title.
No states with title acts found in current data.
Permitting Statute
Permitting statutes allow qualified interior designers to apply for building permits for interior, non-structural work without requiring an architect's stamp. These statutes do not regulate who may practice interior design but expand the scope of what registered designers are permitted to do.
No states with permitting statutes found in current data.
State-by-State Interior Designer Requirements
Requirements vary significantly by state. Some states require licensure with a practice act, others protect only the title, and many have no regulation at all. Click any state name to see its complete licensing guide with step-by-step instructions, fees, CE details, and more.
| State | Credential Title | License Required | NCIDQ Required | Regulation Type | CE Hours | Est. Fees |
|---|---|---|---|---|---|---|
| Alabama | RID | Yes | Yes | title act | 10 hrs | $160 |
| Alaska | N/A | No | No | not regulated | Varies | Varies |
| Arizona | N/A | No | No | not regulated | Varies | Varies |
| Arkansas | RID | Yes | Yes | title act | 6 hrs | $250 |
| California | CID | Yes | No | self-certification | 10 hrs | $300 |
| Colorado | NCIDQ Certificate Holder | No | Yes | permit stamp privilege | 0 hrs | N/A |
| Connecticut | RID | Yes | Yes | title act | 4 hrs | $190 |
| Delaware | N/A | No | No | not regulated | Varies | Varies |
| District of Columbia | LID | Yes | Yes | practice act | 24 hrs | $1,505 |
| Florida | RID | Yes | Yes | title act | 20 hrs | $75 |
| Georgia | RID | Yes | Yes | title act | 12 hrs | $90 |
| Hawaii | N/A | No | No | not regulated | Varies | Varies |
| Idaho | N/A | No | No | not regulated | Varies | Varies |
| Illinois | RID | Yes | Yes | title act | 10 hrs | $30 |
| Indiana | RID | Yes | Yes | title act | 12 hrs | $100 |
| Iowa | RID | Yes | Yes | title act | 10 hrs | $100 |
| Kansas | N/A | No | No | not regulated | Varies | Varies |
| Kentucky | CID | Yes | Yes | title act | 12 hrs | $350 |
| Louisiana | RID | Yes | Yes | practice act | 5 hrs | $150 |
| Maine | N/A | No | No | not regulated | Varies | Varies |
| Maryland | CID | Yes | Yes | title act | 10 hrs | $86 |
| Massachusetts | N/A | No | No | not regulated | Varies | Varies |
| Michigan | N/A | No | No | not regulated | Varies | Varies |
| Minnesota | CID | Yes | Yes | title act | 24 hrs | $120 |
| Mississippi | N/A | No | No | not regulated | Varies | Varies |
| Missouri | RID | Yes | Yes | title act | 10 hrs | $100 |
| Montana | N/A | No | No | not regulated | Varies | Varies |
| Nebraska | N/A | No | No | not regulated | Varies | Varies |
| Nevada | RID | Yes | Yes | practice act | 8 hrs | $300 |
| New Hampshire | N/A | No | No | not regulated | Varies | Varies |
| New Jersey | CID | Yes | Yes | title act | 12 hrs | $100 |
| New Mexico | LID | Yes | Yes | title act | 8 hrs | $150 |
| New York | CID | Yes | Yes | title act | 36 hrs | $377 |
| North Carolina | RID | Yes | Yes | title act | 24 hrs | $100 |
| North Dakota | N/A | No | No | not regulated | Varies | Varies |
| Ohio | N/A | No | No | not regulated | Varies | Varies |
| Oklahoma | RCID | Yes | Yes | title act | 24 hrs | $325 |
| Oregon | N/A | No | No | not regulated | Varies | Varies |
| Pennsylvania | N/A | No | No | not regulated | Varies | Varies |
| Rhode Island | N/A | No | No | not regulated | Varies | Varies |
| South Carolina | N/A | No | No | not regulated | Varies | Varies |
| South Dakota | N/A | No | No | not regulated | Varies | Varies |
| Tennessee | RID | Yes | Yes | title act | 24 hrs | $55 |
| Texas | RID | Yes | Yes | title act | 12 hrs | $100 |
| Utah | CCID | Yes | Yes | title act | 20 hrs | $70 |
| Vermont | N/A | No | No | not regulated | Varies | Varies |
| Virginia | CID | Yes | Yes | title act | 0 hrs | $100 |
| Washington | RID | Yes | Yes | title act | 10 hrs | $150 |
| West Virginia | N/A | No | No | not regulated | Varies | Varies |
| Wisconsin | RID | Yes | Yes | title act | 15 hrs | $75 |
| Wyoming | N/A | No | No | not regulated | Varies | Varies |
Data sourced from official state licensing board websites and CIDQ. Requirements change frequently -- always verify with your state board before applying.
Continuing Education Requirements
Maintaining your interior design license or registration requires ongoing continuing education (CE) in most regulated states. CE requirements vary by state but typically include coursework in health, safety, and welfare (HSW) topics relevant to interior design practice.
Across the 51 states we track, the average CE requirement is 14.3 hours per renewal cycle. Common CE topics include:
- Health, safety, and welfare: Building codes, fire safety, ADA compliance, indoor air quality, and sustainable design.
- Professional ethics: Ethical practice standards and professional conduct.
- Technical knowledge: New materials, technologies, construction methods, and building systems.
- State-specific requirements: Some states require coursework in state laws and regulations governing interior design practice.
Tips for managing CE requirements efficiently:
- Track your hours year-round rather than scrambling at renewal time. Many state boards provide online CE tracking portals.
- Attend industry events such as NeoCon, ASID conferences, or your state's design association meetings -- they often offer multiple CE credits in a single event.
- Many IDCEC (Interior Design Continuing Education Council) approved courses count toward state CE requirements -- verify with your state board.
- Manufacturer lunch-and-learns and webinars can be an efficient way to earn CE credits while staying current on new products and materials.
Frequently Asked Questions
Do I need a license to practice interior design?
It depends on the state where you practice. Interior design regulation varies enormously across the United States. Of the 51 states we track, 27 require some form of license or registration. States with practice acts restrict certain design activities to licensed professionals, while states with title acts only protect the use of specific professional titles. In states with no regulation, anyone may practice interior design without a license. Always check your state's specific requirements.
What is the difference between an interior designer and an interior decorator?
Interior decorators focus on the aesthetic aspects of a space -- selecting colors, furnishings, window treatments, and accessories. Interior designers receive formal education in building systems, construction, building codes, safety, ADA accessibility, and space planning. In states with practice acts or permitting statutes, licensed interior designers may stamp construction documents and pull building permits for interior non-structural work -- activities decorators cannot perform. Interior decorating is not a regulated profession in any state.
How difficult is the NCIDQ exam?
The NCIDQ exam is considered challenging and requires thorough preparation. It consists of three sections (IDFX, IDPX, and PRAC), each testing different aspects of interior design knowledge and practice. Candidates typically spend several months studying for each section. CIDQ publishes study guides, practice exams, and recommended resources. Many candidates find the PRAC (scenario-based) section the most demanding because it requires applying knowledge to realistic project situations.
How much do interior designers earn?
According to the U.S. Bureau of Labor Statistics, the median annual wage for interior designers is approximately $61,000--$62,000. Salaries vary significantly by location, type of practice, specialization, and experience. Interior designers in major metropolitan areas, those specializing in commercial or healthcare design, and those in senior or principal roles typically earn above the median. Self-employed designers' income varies based on their client base and project types.
Can I get an interior design degree online?
Some CIDA-accredited programs offer online or hybrid options, though interior design education typically includes hands-on studio components that may require in-person attendance. Before enrolling in any online program, verify that it holds CIDA accreditation, as this is required for NCIDQ exam eligibility and licensure in most regulated states. A non-accredited degree may limit your career options regardless of the quality of instruction.
How long does it take to become a licensed interior designer?
The typical path takes approximately 6--7 years after high school: 4 years for a bachelor's degree from a CIDA-accredited program, followed by approximately 2 years of supervised work experience to qualify for the NCIDQ exam. After passing all three NCIDQ exam sections, you can apply for state licensure or registration where required. Some candidates take longer if they complete their work experience part-time or spread out their NCIDQ exam sections over multiple testing windows.
Is NCIDQ certification recognized in all states?
The NCIDQ certification is the most widely recognized credential for interior designers in the United States and Canada. Of the states that regulate interior design, most require NCIDQ certification as a condition of licensure or registration. Even in states without regulation, holding NCIDQ certification demonstrates professional competence and can enhance career prospects and client confidence.
Sources
The information in this guide is compiled from official sources. We recommend verifying current requirements directly with these organizations before making career or educational decisions:
- Council for Interior Design Qualification (CIDQ) -- NCIDQ Certification
- Council for Interior Design Accreditation (CIDA) -- Accredited Programs
- American Society of Interior Designers (ASID)
- U.S. Bureau of Labor Statistics -- Interior Designers Occupational Outlook
- Individual state licensing board websites -- see each state page for direct links to official regulatory authorities.
Disclaimer: LicenseMap compiles this information for educational purposes from official state and national sources. Licensing and registration requirements change frequently. Always verify current requirements directly with CIDQ, CIDA, and your state licensing board before enrolling in a program, accumulating work experience, or submitting a license application.
Exam Prep Books
Study guides for the National Council for Interior Design Qualification (NCIDQ) exam.
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