If on 1 year probation can you go to jail if you violated for the first time?

Any time you violate the terms of your probation you go to jail, even if it's just to be brought before the judge to answer the violation. A violation of probation hearing is held in court, and can be tried although not before a jury, and guilt beyond a reasonable doubt need not be proven -- just by a preponderance of evidence, for such violation to be proven. The outcome of such a hearing may range from a return to probation with a warning from the judge, to a revocation of probation and a sentence to a jail term not exceeding a term for which the original crime for which the person went on probation is punishable by. It should be noted that no credit for the time on probation is given against the term of incarceration. For example if you are on probation for a year, for a crime punishable by a year in jail, and your probation is violated after 11 months and 26 days, you could go to jail, still, for that year, minus whatever time you already spent in jail. The outcome may depend on what the probation officer recommends, what the prosecutor will recommend, and what the terms you violated were. A charge of a new offense has a heavy impact. Your probation could be modified to include more terms, or more probation time, or could be altogether revoked as mentioned above.