1099 employee with one source of income should I start company in florida?
Your question is more of a tax question than an incorporation question. Because we are not tax professionals, you would be better served in talking to an accountant.
That said, from our general knowledge it would seem that an LLC would only offer you the benefit of limited liability protection, which you may not necessarily need if you are working for another company. An LLC would not really offer you any tax advantages, however.
You may be able to save some money by opening an S-Corporation, as it could help reduce your self-employment taxes somewhat. This is something to discuss with your accountant.
Of course, the downside in both cases is the increased expenses and administrative burden of keeping a separate company. You will have to pay to both set the company up and maintain the company properly. That means paying set up fees, yearly fees, accounting and bookkeeping expenses, etc.