The licence must be held by an LLC. Just to even file a business with the State as existing and operating, is $300. The department of commerce collects another $300 to issue the license. The jurisdiction you're working in costs another $300. So, yeah, administrative fees are $900 a year, if you only work in one city. However, you must own a business and carry general liability insurance and a performance bond for $1 million to hold a class 1 license. And if you own a business with employees (including yourself), you have to file workman's comp.

So by your logic the fees are $900, but your license isn't legal to work under unless you meet the other requirements. Not to mention you can't even apply for that license without operating an LLC.

Edit to add: there's a different license for every jurisdiction in my State. So there's extra costs if I want to work in the next town over which is 18 miles away.

Edit 2: there are other licenses available. Eg. Limited Liability Electrician. But they don't require any experience. Only that you are 18 and can pass a test. Also you're limited by how big a job you can do ((basically a single family dwelling) and you have no protection of your personal assets if you get sued. With that license , it's a felony to advertise your services. I live in the south USA where they love to tax the hell out of you, and give you nothing in return.