Here’s a question that came up recently:
Does the 401(k) annual contribution limit include or exclude the employer match?
The answer is that your employer’s matching contributions don’t count toward your maximum allowed limits. These limits are $18,000 in 2015, plus an additional $6,000 if you are over 50.
So to be clear, you can contribute up to $18,000 yourself (if under 50) and your employer can contribute funds in addition to that. There is a combined annual defined contribution limit (employee and employer together) of $53,000 for 2015.