Research “Solo 401k”. Sometimes known as Self-employed 401k. In essence, you’re the manager of the plan and it can contain only you. The contribution limits are VERY BIG (up to around 40K I think, depending on your income). I researched when I was a consultant but I never followed through as I went back into full time employment.
You say “besides having one’s own business”, but if you’re self employed you *DO* have your own business. It doesn’t have to have a special name or anything… So, deduct your rent, portion of bills, capital expenditures (laptop!), etc.
Needless to say, I’m not your accountant, so please go and get professional advice. It will save you a ton of money.
