1. Do not ask about salary or benefits until after a job has been offered.
2. Bracket your salary expectations between the low and high salaries listed for similar positions.
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Asking for more than an employer expects to pay may result in disqualification.

Asking for less than an employer expects to pay may result in you not receiving as much as you might otherwise be offered.

Salary.com: lists entry-level, average and top salaries for thousands of jobs.

If the salary offered is too low it may be possible to negotiate working conditions, a title or other benefits.