This is a pretty simple question but I am not sure of the answer! As an army reservist I am eligible to contribute to the TSP. I also just started my first "adult" job and will be eligible to contribute to my employer's 401k in six months. I understand that the maximum contribution for both the TSP and 401k is $18,000. Is the total amount that I can contribute between the two accounts $18,000? Or is it a combined total of $36,000? There is no way that I could max out the TSP on drill pay, but it could be possible for me to max it out with my employer and save ~$5,000 in the TSP. Thanks for your help.