With the questions you are asking, this is scary. It's apparent you really don't understand how an S-Corp works and the legal requirements of managing the finances of an S-Corp. Not following those requirements is *EXPENSIVE* in the ways of fines and penalties.
For example, an S-Corp files it's own tax return on IRS Form 1120-S and that return is due March 15th of each year. If late, the late penalty is $200 per month for each owner of the S-Corp. Additionally, you are "required" to take a minimum distribution each year separate from the W-2 income the S-Corp may pay you. Not doing that can be just as expensive in fines,as the late filing penalty is.
"Technically, I own the truck and trailer."
Actually, the S-Corp should own the truck and trailer, not you. If you own the truck and trailer then you can't depreciate those assets as business assets. You also can't claim them as a W-2 job related expense either, since W-2 job related expenses were eliminated starting in 2018. The S-Corp needs to be the listed owner on the titles for the truck and trailer, and the S-Corp (not you personally) needs to be legally liable for making the payments on those assets too.
I highly encourage you to seek professional help. Otherwise, the potential fines, penalties, late fees and back taxes has a high probability of making the cost of professional help seem like a pittance in comparison. Please seek professional help on this, as the laws, rules and regulations that govern S-Corps differ state to state. Additionally if you're a truck driver, you're also subject to DOT regulations that the S-Corp "should" be liable for, but I suspect on the legal front, it's you that has that liability now. So please, seek professional help in your local jurisdiction. If you're a long haul driver, then you local jurisdiction would be whatever state you treat as your "tax home" for federal tax purposes.
