Having only Box 18 reported makes little sense.
Also, an "employer" shouldn't issue a 1099-MISC to their employees, they should issue a W-2.
Look at the top of this 1099-MISC to see if the "CORRECTED" box is checked. If it is, match this 1099-MISC to the original and enter them both as one.
If the corrected box is not checked, or you don't have any other 1099-MISC from them, contact the person that issued this 1099-MISC to find out what it means.
People report the 1099-MISC, so it could be a human error.
