Most important - what would your area of expertise be? Specifically, what service(s) would you be offering? Needs to be something you are proficient at, of course--and a service that s in demand.And where do you live--what region would you provide services in?Google start consulting business in BC Canada for information specific to your location.Making a business plan, and/or looking at a sample one ought to give you enough ideas to get you started at least asking the right questions--and how to start researching the need for your services.Go to http://www.smallbusinessbc.ca/bizstart-samplePlan.php for a sample business plan--for BC - adaptable for any location I suspect.
This isn t intended to sound rude, but I m sure it will come off that way. If you are here asking strangers who may or may not know anything about business for advice on starting your own business maybe business consulting isn t the business you should be getting into.
Write down all your qualifications and send out brochures.