What will happen if I quit my job without giving any notice?

recovery of money

Nothing. You can still get hired back.

I have done it many times..dimes in my line of work are a dime a dozen.

No one is required to give two weeks notice unless it's in your contract.

Don't expect any letters of recommendation. That's a cowardly thing to do and leaves your coworkers to pay the price. They will remember it and take the tales of "that person who just vanished" with them to other companies. I just heard one of those tales yesterday. You will only lose respect, and I don't see how you'd have anything to gain.

It looks bad on your self and for future references. You leave that previous jonb without time to properly find you a replaceemtn and shows you are not dependable or a team player

They tell future employers which could hurt your chances of getting hired. It's rude and could hurt your reputation.

Probably nothing if you never plan on returning

You'll no longer work there.

They will dislike you. There is no requirement for notice that I can see in federal regulation. It will burn bridges at the company though, which depending on the industry may be a big deal.

Depending on the state that you work in the employer may have a right to withhold benefits such as earned but unused vacation. They may not do that but is possible. In general the downside is hurting your coworkers and possibly getting a bad reference. And of course not being eligible for rehire. Few people worry about that when they are leaving but you would be surprised how many find out the grass is not greener at the new job and ask to come back.

you would be put on no rehire list

Possibly nothing. But highly irresponsible. Never burn your bridges. Again, depending on the situation as to why this employee quit. (if it's out of the employer's hands, that only gives you a glimpse of the quality of employee they were)

You could be placed on a list to not be hired again by the company.

unable to rehire

You will get 0 referrals for your next job and you will certainly burn bridges.

That particular job may give you a poor performance review when future potential employers call

The world will end

In most cases you won't be rehirable.

Karma will find me and punch me in the junk.

It depends on where you work and the local law, it depends on the role, if you leaving caused any monetary damage. It's possible they could sue, it's possible nothing will happen. I wouldn't count on them for a future reference... Really to answer this question you need to know your rights under your legal jurisdiction and the terms of your contract.

Worst case, the company blacklists you and holds any pending benefits/salary you are still owed. Depends on the local labor laws and practices