Can an employees salary be cut or reduced from the starting salary?

The employer can change the salary at any point going forward.  For example, the employer can tell you that starting tomorrow or next week, your salary will be $X.00/hour.   The employer cannot change the salary retroactively by telling you that the work you did last week is going to be paid at a lower rate. But, another factor may be important depending on WHY the employer is doing this.  If it is for economic reasons, there is no problem (if done going forward).  If the decision is based on some type of discrimination or retaliation, then this may possibly be a violation of law.  You should speak to an attorney if you have any concerns