More than just the love for designing interior spaces, here are some things you need to consider if you are planning on starting an interior design or decoration business:

• “How can I support my family while I build up by business?”
• “What are my abilities?”
• “Is there a market for the product or service I have chosen?”
• “How long will it take this business to reach the financial goal I have?”

Here are some articles on how to start an interior decoration business:

• How to Start an Interior Decorating/Design Business
• Starting a Business as a Interior Designer or Decorator
• How to be An Interior Decorator
• Become an Interior Decorator
• Starting an Interior Design Business
• Interior Designers

For in-depth information, I suggest you check out the following books:

• How to Start a Home-Based Interior Design Business
• Start Your Own Interior Design Business and Keep It Growing!
• Secrets of Success for Today’s Interior Designers and Decorators
• How to Prosper As an Interior Designer : A Business and Legal Guide
• The Interior Design Business Handbook
• Marketing Basics for Designers: A Sourcebook of Strategies and Ideas

It is also highly recommended that you check out the resources of professional associations in your field, if not join them as a member:

• Council for Interior Design Accreditation http://www.accredit-id.org/
• Certified Interior Decorators International http://www.cidinternational.org/
• National Council for Interior Design Qualification http://www.ncidq.org/
• The American Society of Interior Designers (ASID) http://www.asid.org/
• The International Interior Design Association (IIDA) http://www.iida.org
• The Interior Design Educators Council, Inc http://www.idec.org/