What is the consequence for driving without a valid drivers license in Florida?

It varies, and it varies as to what the reason for not having a license is. If the driver is under age, you can end up in court explaining to the judge why you were driving without a license. You could be cited (even though you don't have a license) and have the citation "attached" to your record so it appears when you do get a license - if you go get one. If you are cited or appear in court, you can or will be fined, depending on the circumstances. If you simply don't have it with you, you can get a warning or a citation. The officer will check his computer to see if you have a record of having a license. If you have a license, you are required to have it with you when you drive. If your license is expired but you don't have a record, you may be cited or warned to go get it renewed. Either one. And it could cost you some money. You probably won't have to appear in court, but you may. If the license is suspended or revoked, you can (and probably will) be cited, and you may be made to appear. You probably will have to see the judge. Citations have to be paid, and they go on your driving record. Court appearances may or may not cost you money, and may or may not result in other penalties. But they usually do. If you are waiting for a certain period to pass before you can start driving on a suspended license (waiting for the supspension to pass), your waiting time could be extended. Or your license could be revoked. If your license was revoked and you are driving anyway, you can (and probably will) be fined, and you can even be held in detention (jail for adults, juvenile center for "kids"). Good luck in any case.