Hi N.,
Here's the skinny:
You have the choice between being a sole proprietorship or a corporation. As a corporation, you would collect a salary.
This can be good if you make a good profit, because you can operate your corporation at a financial loss and take a tax deduction from it, all the while collecting a salary. This only works if you have another income, as well, which you can put into your coroporation as a financier. Either way, you get a salary so it works out in the wash with smaller taxes.
I'm not entirely sure how the next part works, but my understanding is you need a board of directors for a corporation and shares. You can choose to sell shares or keep them private. The board can be made up of your family, including minor children. Check with the state on that one, but I know that as a minor I sat on the board of my parent's corporation. Laws in that regard might have changed.
The real benefit to being a corporation is that your personal property is protected from litigation. The corporation and its assets can be sued but you cannot.
SInce you would be an employee of your corporation, you have to pay into medicare and social security. You also need an EIN. I don't know how to obtain yourself but I do know that you can pay people to do it over the internet. Generally, however, these things are easy and you should just do it yourself and save yourself a mess of money.
For a sole proprietorship all you really need is a DBA obtained from the county offices downtown. You just go down there with your business name and pay a small fee (under $60) for them to research the name to see if it already exists in the area and voila you're set for ten years, at which time you renew your DBA. Your business tax ID is taken care of there, too, if I remember correctly.
The problems with sole p's, though they are so easy to get, is that you can be sued. They can sue you for everything your family has. Also, small business taxes are about 40% for me. You can't operate a sole P at a loss because it just blends in with all your household income. Well, you can invest in a lot of equipment and if this is your income and not your spouse's you can operate as a loss, but if you are making a profit it can be heavy taxes.
To have employees you need an EIN number. You don't need that as a sole P if it is just you.
Don't forget to offer yourself insurance and other benefits through your corporation or sole P and write it off as a business expense! If it causes you to operate as a loss (and subsidize through your spouse's income) all the better.
I hope this makes sense.
Umber