Aaron Carter can finally close the book on his DUI case from 4 years ago in Georgia -- and he's gotta be pretty happy, because he's walking away without doing a day in jail.
A court clerk from Habersham County tells TMZ ... Aaron struck a deal with prosecutors, agreeing to plea no contest to reckless driving for the 2017 stop where he refused to submit to a breathalyzer test. The DUI charge goes away.
We're told Aaron will be placed on 12 months of probation, while also having to complete 40 hours of community service and take some DUI risk reduction classes ... plus, shell out around $1,500 in court fees and fines. AC will also be subjected to a drug and alcohol evaluation, and has to comply with whatever other treatment is seen as appropriate.
Assuming all goes well during his probation, he won't have to spend any time behind bars -- which was technically on the table as a possibility when he got arrested.