The contractor's handbook on Amazon is a good resource, probably goes more in details than you'll need but if you're an overachiever it's a good read. From my

The contractor's handbook on Amazon is a good resource, probably goes more in details than you'll need but if you're an overachiever it's a good read. From my personal experience I would say, if you're considering contracting you've been a dev for quite some times, don't let impostor syndrome settle in. Trust yourself. It's not harder to be a contractor than an employee, it just pays more. For understanding of the market, fill your linkedin profile with as much as you can, so people find your profile when they do linkedin search. As a web developer contracting, you should get half a dozen interesting messages weekly, filtering people who contact you for completely unrelated stuff. If you do that for a while, you can start seeing trends (more active months, average rate, amazing rates, technology etc.). If you have time to spare, try to negotiate as hardball as you can at first. If people are not saying no to your rate, you're probably underselling yourself. If you're in a rush, then start with what you see as being the average rate instead.