I used to moderate on a forum about working from home, and there are lots of people out there with very unrealistic expectations about the "ease" of doing so. One thing some folks forget is that, if you aren't prepared to do the taxes and paperwork yourself, you have to make sure your are bringing in enough money to pay for accounting or secretarial help.

We used to advise over on the working from home forum that the rates you charge (online or as an independent business) should be about twice what you made as an employee, in order to cover all the extra costs and overheads that your employer was handling for you. And that formula probably has to be adjusted by country. I know I was shocked to find out what we had to pay in social charges for my husband when he went from being an "employee" of our company to being the "majority owner artisan."
Cheers,
Bev