Exceeding TSP Contribution Limits THE THRIFT SAVINGS PLAN ALLOCATION GUIDE › Forums › Message Board › Exceeding TSP Contribution Limits This topic contains 1 reply, has 1 voice, and was last updated by Anne 3 years, 5 months ago. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts December 12, 2015 at 12:16 pm #17709 Nick Two questions: 1. Is it possible to exceed the contribution limit, or does the TSP automatically stop contributions for you at the limit ($18,000 for 2015)? 2. If it is possible to exceed the contribution limit, and one exceeds that limit, what can one do to avoid being penalized? December 13, 2015 at 4:15 am #17713 Anne Nick, I think it is your payroll office that will automatically cut you off at the maximum. They should not allow you to exceed it. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic.